COMPOUNDS AND COMPOSITIONS FOR TREATING CONDITIONS ASSOCIATED WITH STING ACTIVITY

Abstract
This disclosure features chemical entities (e.g., a compound or a pharmaceutically acceptable salt, and/or hydrate, and/or cocrystal, and/or drug combination of the compound) that inhibit (e.g., antagonize) Stimulator of Interferon Genes (STING). Said chemical entities are useful, e.g., for treating a condition, disease or disorder in which increased (e.g., excessive) STING activation (e.g., STING signaling) contributes to the pathology and/or symptoms and/or progression of the condition, disease or disorder (e.g., cancer) in a subject (e.g., a human). This disclosure also features compositions containing the same as well as methods of using and making the same.
Description
TECHNICAL FIELD

This disclosure features chemical entities (e.g., a compound or a pharmaceutically acceptable salt, and/or hydrate, and/or cocrystal, and/or drug combination of the compound) that inhibit (e.g., antagonize) Stimulator of Interferon Genes (STING). Said chemical entities are useful, e.g., for treating a condition, disease or disorder in which increased (e.g., excessive) STING activation (e.g., STING signaling) contributes to the pathology and/or symptoms and/or progression of the condition, disease or disorder (e.g., cancer) in a subject (e.g., a human). This disclosure also features compositions containing the same as well as methods of using and making the same.


BACKGROUND

STING, also known as transmembrane protein 173 (TMEM173) and MPYS/MITA/ERIS, is a protein that in humans is encoded by the TMEM173 gene. STING has been shown to play a role in innate immunity. STING induces type I interferon production when cells are infected with intracellular pathogens, such as viruses, mycobacteria and intracellular parasites. Type I interferon, mediated by STING, protects infected cells and nearby cells from local infection in an autocrine and paracrine manner.


The STING pathway is pivotal in mediating the recognition of cytosolic DNA. In this context, STING, a transmembrane protein localized to the endoplasmic reticulum (ER), acts as a second messenger receptor for 2′, 3′ cyclic GMP-AMP (hereafter cGAMP), which is produced by cGAS after dsDNA binding. In addition, STING can also function as a primary pattern recognition receptor for bacterial cyclic dinucleotides (CDNs) and small molecule agonists. The recognition of endogenous or prokaryotic CDNs proceeds through the carboxy-terminal domain of STING, which faces into the cytosol and creates a V-shaped binding pocket formed by a STING homodimer. Ligand-induced activation of STING triggers its re-localization to the Golgi, a process essential to promote the interaction of STING with TBK1. This protein complex, in turn, signals through the transcription factors TRF-3 to induce type I interferons (IFNs) and other co-regulated antiviral factors. In addition, STING was shown to trigger NF-κB and MAP kinase activation. Following the initiation of signal transduction, STING is rapidly degraded, a step considered important in terminating the inflammatory response.


Excessive activation of STING is associated with a subset of monogenic autoinflammatory conditions, the so-called type I interferonopathies. Examples of these diseases include a clinical syndrome referred to as STING-associated vasculopathy with onset in infancy (SAVI), which is caused by gain-of-function mutations in TMEM173 (the gene name of STING). Moreover, STING is implicated in the pathogenesis of Aicardi-Goutières Syndrome (AGS) and genetic forms of lupus. As opposed to SAVI, it is the dysregulation of nucleic acid metabolism that underlies continuous innate immune activation in AGS. Apart from these genetic disorders, emerging evidence points to a more general pathogenic role for STING in a range of inflammation-associated disorders such as systemic lupus erythematosus, rheumatoid arthritis and cancer. Thus, small molecule-based pharmacological interventions into the STING signaling pathway hold significant potential for the treatment of a wide spectrum of diseases


SUMMARY

This disclosure features chemical entities (e.g., a compound or a pharmaceutically acceptable salt, and/or hydrate, and/or cocrystal, and/or drug combination of the compound) that inhibit (e.g., antagonize) Stimulator of Interferon Genes (STING). Said chemical entities are useful, e.g., for treating a condition, disease or disorder in which increased (e.g., excessive) STING activation (e.g., STING signaling) contributes to the pathology and/or symptoms and/or progression of the condition, disease or disorder (e.g., cancer) in a subject (e.g., a human). This disclosure also features compositions containing the same as well as methods of using and making the same.


An “antagonist” of STING includes compounds that, at the protein level, directly bind or modify STING such that an activity of STING is decreased, e.g., by inhibition, blocking or dampening agonist-mediated responses, altered distribution, or otherwise. STING antagonists include chemical entities, which interfere or inhibit STING signaling.


In one aspect, compounds of Formula (I), or a pharmaceutically acceptable salt thereof, are featured:




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in which Z, Y1, Y2, Y3, X1, X2, R6, P1, P2, P3, P4, and P5 can be as defined anywhere herein.


In one aspect, compounds of Formula (II), or a pharmaceutically acceptable salt thereof, are featured:




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in which X1, X2, R6, P1, P2, P3, P4, and P5 can be as defined anywhere herein.


In one aspect, compounds of Formula (III), or a pharmaceutically acceptable salt thereof, are featured:




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in which R1a, R1b, R1c, X1, X2, R6, P1, P2, P3, P4, and P5 can be as defined anywhere herein.


In one aspect, pharmaceutical compositions are featured that include a chemical entity described herein (e.g., a compound described generically or specifically herein or a pharmaceutically acceptable salt thereof or compositions containing the same) and one or more pharmaceutically acceptable excipients.


In one aspect, methods for inhibiting (e.g., antagonizing) STING activity are featured that include contacting STING with a chemical entity described herein (e.g., a compound described generically or specifically herein or a pharmaceutically acceptable salt thereof or compositions containing the same). Methods include in vitro methods, e.g., contacting a sample that includes one or more cells comprising STING (e.g., innate immune cells, e.g., mast cells, macrophages, dendritic cells (DCs), and natural killer cells) with the chemical entity. Methods can also include in vivo methods; e.g., administering the chemical entity to a subject (e.g., a human) having a disease in which increased (e.g., excessive) STING signaling contributes to the pathology and/or symptoms and/or progression of the disease.


In one aspect, methods of treating a condition, disease or disorder ameliorated by antagonizing STING are featured, e.g., treating a condition, disease or disorder in which increased (e.g., excessive) STING activation (e.g., STING signaling) contributes to the pathology and/or symptoms and/or progression of the condition, disease or disorder (e.g., cancer) in a subject (e.g., a human). The methods include administering to a subject in need of such treatment an effective amount of a chemical entity described herein (e.g., a compound described generically or specifically herein or a pharmaceutically acceptable salt thereof or compositions containing the same).


In another aspect, methods of treating cancer are featured that include administering to a subject in need of such treatment an effective amount of a chemical entity described herein (e.g., a compound described generically or specifically herein or a pharmaceutically acceptable salt thereof or compositions containing the same).


In a further aspect, methods of treating other STING-associated conditions are featured, e.g., type I interferonopathies (e.g., STING-associated vasculopathy with onset in infancy (SAVI)), Aicardi-Goutières Syndrome (AGS), genetic forms of lupus, and inflammation-associated disorders such as systemic lupus erythematosus, and rheumatoid arthritis. The methods include administering to a subject in need of such treatment an effective amount of a chemical entity described herein (e.g., a compound described generically or specifically herein or a pharmaceutically acceptable salt thereof or compositions containing the same).


In another aspect, methods of suppressing STING-dependent type I interferon production in a subject in need thereof are featured that include administering to the subject an effective amount of a chemical entity described herein (e.g., a compound described generically or specifically herein or a pharmaceutically acceptable salt thereof or compositions containing the same).


In a further aspect, methods of treating a disease in which increased (e.g., excessive) STING activation (e.g., STING signaling) contributes to the pathology and/or symptoms and/or progression of the disease are featured. The methods include administering to a subject in need of such treatment an effective amount of a chemical entity described herein (e.g., a compound described generically or specifically herein or a pharmaceutically acceptable salt thereof or compositions containing the same).


In another aspect, methods of treatment are featured that include administering an effective amount of a chemical entity described herein (e.g., a compound described generically or specifically herein or a pharmaceutically acceptable salt thereof or compositions containing the same) to a subject; wherein the subject has (or is predisposed to have) a disease in which increased (e.g., excessive) STING activation (e.g., STING signaling) contributes to the pathology and/or symptoms and/or progression of the disease.


In a further aspect, methods of treatment that include administering to a subject a chemical entity described herein (e.g., a compound described generically or specifically herein or a pharmaceutically acceptable salt thereof or compositions containing the same), wherein the chemical entity is administered in an amount effective to treat a disease in which increased (e.g., excessive) STING activation (e.g., STING signaling) contributes to the pathology and/or symptoms and/or progression of the disease, thereby treating the disease.


In another aspect, there is provided is a compound, or a pharmaceutically acceptable salt or tautomer thereof, as described herein, for use in the treatment of a disease, condition or disorder modulated by STING inhibition.


In another aspect, there is provided a compound, or a pharmaceutically acceptable salt or tautomer thereof, as described herein for use in the treatment of a condition, disease or disorder associated with increased (e.g., excessive) STING activation.


In another aspect, there is provided a compound, or a pharmaceutically acceptable salt or tautomer thereof, described herein for use in the treatment of cancer.


In another aspect, there is provided a compound, or a pharmaceutically acceptable salt or tautomer thereof, as described herein for use in the treatment of cancer selected from the group consisting of melanoma, cervical cancer, breast cancer, ovarian cancer, prostate cancer, testicular cancer, urothelial carcinoma, bladder cancer, non-small cell lung cancer, small cell lung cancer, sarcoma, colorectal adenocarcinoma, gastrointestinal stromal tumors, gastroesophageal carcinoma, colorectal cancer, pancreatic cancer, kidney cancer, hepatocellular cancer, malignant mesothelioma, leukemia, lymphoma, myelodysplasia syndrome, multiple myeloma, transitional cell carcinoma, neuroblastoma, plasma cell neoplasms, Wilm's tumor, or hepatocellular carcinoma.


In another aspect, there is provided a compound, or a pharmaceutically acceptable salt or tautomer thereof, as described herein for use in the treatment of type I interferonopathies.


In another aspect, there is provided a compound, or a pharmaceutically acceptable salt or tautomer thereof, as described herein for use in the treatment of type I interferonopathies selected from STING-associated vasculopathy with onset in infancy (SAVI)), Aicardi-Goutières Syndrome (AGS), genetic forms of lupus, and inflammation-associated disorders such as systemic lupus erythematosus, and rheumatoid arthritis.


In another aspect, there is provided the use of a compound, or a pharmaceutically acceptable salt or tautomer thereof, as described herein in the manufacture of a medicament for the treatment of a condition, disease or disorder associated with increased (e.g., excessive) STING activation.


In another aspect, there is provided the use of a compound, or a pharmaceutically acceptable salt or tautomer thereof, as described herein in the manufacture of a medicament for the treatment of cancer.


In another aspect, there is provided the use of a compound, or a pharmaceutically acceptable salt or tautomer thereof, as described herein in the manufacture of a medicament for the treatment of cancer selected from the group consisting of melanoma, cervical cancer, breast cancer, ovarian cancer, prostate cancer, testicular cancer, urothelial carcinoma, bladder cancer, non-small cell lung cancer, small cell lung cancer, sarcoma, colorectal adenocarcinoma, gastrointestinal stromal tumors, gastroesophageal carcinoma, colorectal cancer, pancreatic cancer, kidney cancer, hepatocellular cancer, malignant mesothelioma, leukemia, lymphoma, myelodysplasia syndrome, multiple myeloma, transitional cell carcinoma, neuroblastoma, plasma cell neoplasms, Wilm's tumor, or hepatocellular carcinoma.


In another aspect, there is provided the use of a compound, or a pharmaceutically acceptable salt or tautomer thereof, as described herein in the manufacture of a medicament for the treatment of type I interferonopathies.


In another aspect, there is provided the use of a compound, or a pharmaceutically acceptable salt or tautomer thereof, as described herein for use in the manufacture of a medicament for the treatment of type I interferonopathies selected from STING-associated vasculopathy with onset in infancy (SAVI)), Aicardi-Goutières Syndrome (AGS), genetic forms of lupus, and inflammation-associated disorders such as systemic lupus erythematosus, and rheumatoid arthritis.


In another aspect, there is provided the use of a compound, or a pharmaceutically acceptable salt or tautomer thereof, as described herein, for the treatment of a disease, condition or disorder modulated by STING inhibition.


In another aspect, there is provided the use of a compound, or a pharmaceutically acceptable salt or tautomer thereof, as described herein for the treatment of a condition, disease or disorder associated with increased (e.g., excessive) STING activation.


In another aspect, there is provided the use of a compound, or a pharmaceutically acceptable salt or tautomer thereof, as described herein for the treatment of cancer.


In another aspect, there is provided the use of a compound, or a pharmaceutically acceptable salt or tautomer thereof, as described herein for the treatment of cancer selected from the group consisting of melanoma, cervical cancer, breast cancer, ovarian cancer, prostate cancer, testicular cancer, urothelial carcinoma, bladder cancer, non-small cell lung cancer, small cell lung cancer, sarcoma, colorectal adenocarcinoma, gastrointestinal stromal tumors, gastroesophageal carcinoma, colorectal cancer, pancreatic cancer, kidney cancer, hepatocellular cancer, malignant mesothelioma, leukemia, lymphoma, myelodysplasia syndrome, multiple myeloma, transitional cell carcinoma, neuroblastoma, plasma cell neoplasms, Wilm's tumor, or hepatocellular carcinoma.


In another aspect, there is provided the use of a compound, or a pharmaceutically acceptable salt or tautomer thereof, as described herein for the treatment of type I interferonopathies.


In another aspect, there is provided the use of a compound, or a pharmaceutically acceptable salt or tautomer thereof, as described herein for the treatment of type I interferonopathies selected from STING-associated vasculopathy with onset in infancy (SAVI)), Aicardi-Goutières Syndrome (AGS), genetic forms of lupus, and inflammation-associated disorders such as systemic lupus erythematosus, and rheumatoid arthritis.


Embodiments can include one or more of the following features.


The chemical entity can be administered in combination with one or more additional therapeutic agents and/or regimens. For examples, methods can further include administering one or more (e.g., two, three, four, five, six, or more) additional agents.


The chemical entity can be administered in combination with one or more additional therapeutic agents and/or regimens that are useful for treating other STING-associated conditions, e.g., type I interferonopathies (e.g., STING-associated vasculopathy with onset in infancy (SAVI)), Aicardi-Goutières Syndrome (AGS), genetic forms of lupus, and inflammation-associated disorders such as systemic lupus erythematosus, and rheumatoid arthritis.


The chemical entity can be administered in combination with one or more additional cancer therapies (e.g., surgery, radiotherapy, chemotherapy, toxin therapy, immunotherapy, cryotherapy or gene therapy, or a combination thereof, e.g., chemotherapy that includes administering one or more (e.g., two, three, four, five, six, or more) additional chemotherapeutic agents. Non-limiting examples of additional chemotherapeutic agents is selected from an alkylating agent (e.g., cisplatin, carboplatin, mechlorethamine, cyclophosphamide, chlorambucil, ifosfamide and/or oxaliplatin); an anti-metabolite (e.g., azathioprine and/or mercaptopurine); a terpenoid (e.g., a vinca alkaloid and/or a taxane; e.g., Vincristine, Vinblastine, Vinorelbine and/or Vindesine Taxol, Pacllitaxel and/or Docetaxel); a topoisomerase (e.g., a type I topoisomerase and/or a type 2 topoisomerase; e.g., camptothecins, such as irinotecan and/or topotecan; amsacrine, etoposide, etoposide phosphate and/or teniposide); a cytotoxic antibiotic (e.g., actinomycin, anthracyclines, doxorubicin, daunorubicin, valrubicin, idarubicin, epirubicin, bleomycin, plicamycin and/or mitomycin); a hormone (e.g., a lutenizing hormone releasing hormone agonist; e.g., leuprolidine, goserelin, triptorelin, histrelin, bicalutamide, flutamide and/or nilutamide); an antibody (e.g., Abciximab, Adalimumab, Alemtuzumab, Atlizumab, Basiliximab, Belimumab, Bevacizumab, Bretuximab vedotin, Canakinumab, Cetuximab, Ceertolizumab pegol, Daclizumab, Denosumab, Eculizumab, Efalizumab, Gemtuzumab, Golimumab, Golimumab, Ibritumomab tiuxetan, Infliximab, Ipilimumab, Muromonab-CD3, Natalizumab, Ofatumumab, Omalizumab, Palivizumab, Panitumuab, Ranibizumab, Rituximab, Tocilizumab, Tositumomab and/or Trastuzumab); an anti-angiogenic agent; a cytokine; a thrombotic agent; a growth inhibitory agent; an anti-helminthic agent; and an immune checkpoint inhibitor that targets an immune checkpoint receptor selected from the group consisting of CTLA-4, PD-1, PD-L1, PD-1-PD-L1, PD-1-PD-L2, interleukin-2 (IL-2), indoleamine 2,3-dioxygenase (IDO), IL-10, transforming growth factor-β (TGFβ), T cell immunoglobulin and mucin 3 (TIM3 or HAVCR2), Galectin 9-TIM3, Phosphatidylserine-TIM3, lymphocyte activation gene 3 protein (LAG3), MHC class II-LAG3, 4-1BB-4-1BB ligand, OX40-OX40 ligand, GITR, GITR ligand-GITR, CD27, CD70-CD27, TNFRSF25, TNFRSF25-TL1A, CD40L, CD40-CD40 ligand, HVEM-LIGHT-LTA, HVEM, HVEM-BTLA, HVEM-CD160, HVEM-LIGHT, HVEM-BTLA-CD160, CD80, CD80-PDL-1, PDL2-CD80, CD244, CD48-CD244, CD244, ICOS, ICOS-ICOS ligand, B7-H3, B7-H4, VISTA, TMIGD2, HHLA2-TMIGD2, Butyrophilins, including BTNL2, Siglec family, TIGIT and PVR family members, KIRs, ILTs and LIRs, NKG2D and NKG2A, MICA and MICB, CD244, CD28, CD86-CD28, CD86-CTLA, CD80-CD28, CD39, CD73 Adenosine-CD39-CD73, CXCR4-CXCL12, Phosphatidylserine, TIM3, Phosphatidylserine-TIM3, SIRPA-CD47, VEGF, Neuropilin, CD160, CD30, and CD155 (e.g., CTLA-4 or PD1 or PD-L1).


The subject can have cancer; e.g., the subject has undergone and/or is undergoing and/or will undergo one or more cancer therapies.


Non-limiting examples of cancer include melanoma, cervical cancer, breast cancer, ovarian cancer, prostate cancer, testicular cancer, urothelial carcinoma, bladder cancer, non-small cell lung cancer, small cell lung cancer, sarcoma, colorectal adenocarcinoma, gastrointestinal stromal tumors, gastroesophageal carcinoma, colorectal cancer, pancreatic cancer, kidney cancer, hepatocellular cancer, malignant mesothelioma, leukemia, lymphoma, myelodysplasia syndrome, multiple myeloma, transitional cell carcinoma, neuroblastoma, plasma cell neoplasms, Wilm's tumor, or hepatocellular carcinoma. In certain embodiments, the cancer can be a refractory cancer.


The chemical entity can be administered intratumorally.


The methods can further include identifying the subject.


Other embodiments include those described in the Detailed Description and/or in the claims.


Additional Definitions

To facilitate understanding of the disclosure set forth herein, a number of additional terms are defined below. Generally, the nomenclature used herein and the laboratory procedures in organic chemistry, medicinal chemistry, and pharmacology described herein are those well-known and commonly employed in the art. Unless defined otherwise, all technical and scientific terms used herein generally have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. Each of the patents, applications, published applications, and other publications that are mentioned throughout the specification and the attached appendices are incorporated herein by reference in their entireties.


As used herein, the term “STING” is meant to include, without limitation, nucleic acids, polynucleotides, oligonucleotides, sense and antisense polynucleotide strands, complementary sequences, peptides, polypeptides, proteins, homologous and/or orthologous STING molecules, isoforms, precursors, mutants, variants, derivatives, splice variants, alleles, different species, and active fragments thereof.


The term “acceptable” with respect to a formulation, composition or ingredient, as used herein, means having no persistent detrimental effect on the general health of the subject being treated.


“API” refers to an active pharmaceutical ingredient.


The terms “effective amount” or “therapeutically effective amount,” as used herein, refer to a sufficient amount of a chemical entity being administered which will relieve to some extent one or more of the symptoms of the disease or condition being treated. The result includes reduction and/or alleviation of the signs, symptoms, or causes of a disease, or any other desired alteration of a biological system. For example, an “effective amount” for therapeutic uses is the amount of the composition comprising a compound as disclosed herein required to provide a clinically significant decrease in disease symptoms. An appropriate “effective” amount in any individual case is determined using any suitable technique, such as a dose escalation study.


The term “excipient” or “pharmaceutically acceptable excipient” means a pharmaceutically-acceptable material, composition, or vehicle, such as a liquid or solid filler, diluent, carrier, solvent, or encapsulating material. In one embodiment, each component is “pharmaceutically acceptable” in the sense of being compatible with the other ingredients of a pharmaceutical formulation, and suitable for use in contact with the tissue or organ of humans and animals without excessive toxicity, irritation, allergic response, immunogenicity, or other problems or complications, commensurate with a reasonable benefit/risk ratio. See, e.g., Remington: The Science and Practice of Pharmacy, 21st ed.; Lippincott Williams & Wilkins: Philadelphia, Pa., 2005; Handbook of Pharmaceutical Excipients, 6th ed.; Rowe et al., Eds.; The Pharmaceutical Press and the American Pharmaceutical Association: 2009; Handbook of Pharmaceutical Additives, 3rd ed.; Ash and Ash Eds.; Gower Publishing Company: 2007; Pharmaceutical Preformulation and Formulation, 2nd ed.; Gibson Ed.; CRC Press LLC: Boca Raton, Fla., 2009.


The term “pharmaceutically acceptable salt” refers to a formulation of a compound that does not cause significant irritation to an organism to which it is administered and does not abrogate the biological activity and properties of the compound. In certain instances, pharmaceutically acceptable salts are obtained by reacting a compound described herein, with acids such as hydrochloric acid, hydrobromic acid, sulfuric acid, nitric acid, phosphoric acid, methanesulfonic acid, ethanesulfonic acid, p-toluenesulfonic acid, salicylic acid and the like. In some instances, pharmaceutically acceptable salts are obtained by reacting a compound having acidic group described herein with a base to form a salt such as an ammonium salt, an alkali metal salt, such as a sodium or a potassium salt, an alkaline earth metal salt, such as a calcium or a magnesium salt, a salt of organic bases such as dicyclohexylamine, N-methyl-D-glucamine, tris(hydroxymethyl)methylamine, and salts with amino acids such as arginine, lysine, and the like, or by other methods previously determined. The pharmacologically acceptable salt s not specifically limited as far as it can be used in medicaments. Examples of a salt that the compounds described hereinform with a base include the following: salts thereof with inorganic bases such as sodium, potassium, magnesium, calcium, and aluminum; salts thereof with organic bases such as methylamine, ethylamine and ethanolamine; salts thereof with basic amino acids such as lysine and ornithine; and ammonium salt. The salts may be acid addition salts, which are specifically exemplified by acid addition salts with the following: mineral acids such as hydrochloric acid, hydrobromic acid, hydroiodic acid, sulfuric acid, nitric acid, and phosphoric acid:organic acids such as formic acid, acetic acid, propionic acid, oxalic acid, malonic acid, succinic acid, fumaric acid, maleic acid, lactic acid, malic acid, tartaric acid, citric acid, methanesulfonic acid, and ethanesulfonic acid; acidic amino acids such as aspartic acid and glutamic acid.


The term “pharmaceutical composition” refers to a mixture of a compound described herein with other chemical components (referred to collectively herein as “excipients”), such as carriers, stabilizers, diluents, dispersing agents, suspending agents, and/or thickening agents. The pharmaceutical composition facilitates administration of the compound to an organism. Multiple techniques of administering a compound exist in the art including, but not limited to: rectal, oral, intravenous, aerosol, parenteral, ophthalmic, pulmonary, and topical administration.


The term “subject” refers to an animal, including, but not limited to, a primate (e.g., human), monkey, cow, pig, sheep, goat, horse, dog, cat, rabbit, rat, or mouse. The terms “subject” and “patient” are used interchangeably herein in reference, for example, to a mammalian subject, such as a human.


The terms “treat,” “treating,” and “treatment,” in the context of treating a disease or disorder, are meant to include alleviating or abrogating a disorder, disease, or condition, or one or more of the symptoms associated with the disorder, disease, or condition; or to slowing the progression, spread or worsening of a disease, disorder or condition or of one or more symptoms thereof. The “treatment of cancer”, refers to one or more of the following effects: (1) inhibition, to some extent, of tumor growth, including, (i) slowing down and (ii) complete growth arrest; (2) reduction in the number of tumor cells; (3) maintaining tumor size; (4) reduction in tumor size; (5) inhibition, including (i) reduction, (ii) slowing down or (iii) complete prevention, of tumor cell infiltration into peripheral organs; (6) inhibition, including (i) reduction, (ii) slowing down or (iii) complete prevention, of metastasis; (7) enhancement of anti-tumor immune response, which may result in (i) maintaining tumor size, (ii) reducing tumor size, (iii) slowing the growth of a tumor, (iv) reducing, slowing or preventing invasion and/or (8) relief, to some extent, of the severity or number of one or more symptoms associated with the disorder.


The term “halo” refers to fluoro (F), chloro (Cl), bromo (Br), or iodo (I).


The term “alkyl” refers to a saturated acyclic hydrocarbon radical that may be a straight chain or branched chain, containing the indicated number of carbon atoms. For example, C1-10 indicates that the group may have from 1 to 10 (inclusive) carbon atoms in it. Alkyl groups can either be unsubstituted or substituted with one or more substituents.


Non-limiting examples include methyl, ethyl, iso-propyl, tert-butyl, n-hexyl. The term “saturated” as used in this context means only single bonds present between constituent carbon atoms and other available valences occupied by hydrogen and/or other substituents as defined herein.


The term “haloalkyl” refers to an alkyl, in which one or more hydrogen atoms is/are replaced with an independently selected halo.


The term “alkoxy” refers to an —O-alkyl radical (e.g., —OCH3).


The term “alkylene” refers to a divalent alkyl (e.g., —CH2—).


The term “alkenyl” refers to an acyclic hydrocarbon chain that may be a straight chain or branched chain having one or more carbon-carbon double bonds. The alkenyl moiety contains the indicated number of carbon atoms. For example, C2-6 indicates that the group may have from 2 to 6 (inclusive) carbon atoms in it. Alkenyl groups can either be unsubstituted or substituted with one or more substituents.


The term “alkynyl” refers to an acyclic hydrocarbon chain that may be a straight chain or branched chain having one or more carbon-carbon triple bonds. The alkynyl moiety contains the indicated number of carbon atoms. For example, C2-6 indicates that the group may have from 2 to 6 (inclusive) carbon atoms in it. Alkynyl groups can either be unsubstituted or substituted with one or more substituents.


The term “aryl” refers to a 6-20 carbon mono-, bi-, tri- or polycyclic group wherein at least one ring in the system is aromatic (e.g., 6-carbon monocyclic, 10-carbon bicyclic, or 14-carbon tricyclic aromatic ring system); and wherein 0, 1, 2, 3, or 4 atoms of each ring may be substituted by a substituent. Examples of aryl groups include phenyl, naphthyl, tetrahydronaphthyl, dihydro-1H-indenyl and the like.


The term “cycloalkyl” as used herein refers to cyclic saturated hydrocarbon groups having, e.g., 3 to 20 ring carbons, preferably 3 to 16 ring carbons, and more preferably 3 to 12 ring carbons or 3-10 ring carbons or 3-6 ring carbons, wherein the cycloalkyl group may be optionally substituted. Examples of cycloalkyl groups include, without limitation, cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl, and cyclooctyl. Cycloalkyl may include multiple fused and/or bridged rings. Non-limiting examples of fused/bridged cycloalkyl includes: bicyclo[1.1.0]butanyl, bicyclo[2.1.0]pentanyl, bicyclo[1.1.1]pentanyl, bicyclo[3.1.0]hexanyl, bicyclo[2.1.1]hexanyl, bicyclo[3.2.0]heptanyl, bicyclo[4.1.0]heptanyl, bicyclo[2.2.1]heptanyl, bicyclo[3.1.1]heptanyl, bicyclo[4.2.0]octanyl, bicyclo[3.2.1]octanyl, bicyclo[2.2.2]octanyl, and the like. Cycloalkyl also includes spirocyclic rings (e.g., spirocyclic bicycle wherein two rings are connected through just one atom). Non-limiting examples of spirocyclic cycloalkyls include spiro[2.2]pentanyl, spiro[2.5]octanyl, spiro[3.5]nonanyl, spiro[3.5]nonanyl, spiro[3.5]nonanyl, spiro[4.4]nonanyl, spiro[2.6]nonanyl, spiro[4.5]decanyl, spiro[3.6]decanyl, spiro[5.5]undecanyl, and the like. The term “saturated” as used in this context means only single bonds present between constituent carbon atoms.


The term “cycloalkenyl” as used herein means partially unsaturated cyclic hydrocarbon groups having 3 to 20 ring carbons, preferably 3 to 16 ring carbons, and more preferably 3 to 12 ring carbons or 3-10 ring carbons or 3-6 ring carbons, wherein the cycloalkenyl group may be optionally substituted. Examples of cycloalkenyl groups include, without limitation, cyclopentenyl, cyclohexenyl, cycloheptenyl, and cyclooctenyl. As partially unsaturated cyclic hydrocarbon groups, cycloalkenyl groups may have any degree of unsaturation provided that one or more double bonds is present in the ring, none of the rings in the ring system are aromatic, and the cycloalkenyl group is not fully saturated overall. Cycloalkenyl may include multiple fused and/or bridged and/or spirocyclic rings.


The term “heteroaryl”, as used herein, means a mono-, bi-, tri- or polycyclic group having 5 to 20 ring atoms, alternatively 5, 6, 9, 10, or 14 ring atoms; and having 6, 10, or 14 pi electrons shared in a cyclic array; wherein at least one ring in the system is aromatic, and at least one ring in the system contains one or more heteroatoms independently selected from the group consisting of N, O, and S (but does not have to be a ring which contains a heteroatom, e.g. tetrahydroisoquinolinyl, e.g., tetrahydroquinolinyl). Heteroaryl groups can either be unsubstituted or substituted with one or more substituents. Examples of heteroaryl include thienyl, pyridinyl, furyl, oxazolyl, oxadiazolyl, pyrrolyl, imidazolyl, triazolyl, thiodiazolyl, pyrazolyl, isoxazolyl, thiadiazolyl, pyranyl, pyrazinyl, pyrimidinyl, pyridazinyl, triazinyl, thiazolyl benzothienyl, benzoxadiazolyl, benzofuranyl, benzimidazolyl, benzotriazolyl, cinnolinyl, indazolyl, indolyl, isoquinolinyl, isothiazolyl, naphthyridinyl, purinyl, thienopyridinyl, pyrido[2,3-d]pyrimidinyl, pyrrolo[2,3-b]pyridinyl, quinazolinyl, quinolinyl, thieno[2,3-c]pyridinyl, pyrazolo[3,4-b]pyridinyl, pyrazolo[3,4-c]pyridinyl, pyrazolo[4,3-c]pyridine, pyrazolo[4,3-b]pyridinyl, tetrazolyl, chromanyl, 2,3-dihydrobenzo[b][1,4]dioxinyl, benzo[d][1,3]dioxolyl, 2,3-dihydrobenzofuranyl, tetrahydroquinolinyl, 2,3-dihydrobenzo[b][1,4]oxathiinyl, isoindolinyl, and others. In some embodiments, the heteroaryl is selected from thienyl, pyridinyl, furyl, pyrazolyl, imidazolyl, isoindolinyl, pyranyl, pyrazinyl, and pyrimidinyl.


The term “heterocyclyl” refers to a mon-, bi-, tri-, or polycyclic saturated ring system with 3-16 ring atoms (e.g., 5-8 membered monocyclic, 8-12 membered bicyclic, or 11-14 membered tricyclic ring system) having 1-3 heteroatoms if monocyclic, 1-6 heteroatoms if bicyclic, or 1-9 heteroatoms if tricyclic or polycyclic, said heteroatoms selected from O, N, or S (e.g., carbon atoms and 1-3, 1-6, or 1-9 heteroatoms of N, O, or S if monocyclic, bicyclic, or tricyclic, respectively), wherein 0, 1, 2 or 3 atoms of each ring may be substituted by a substituent. Examples of heterocyclyl groups include piperazinyl, pyrrolidinyl, dioxanyl, morpholinyl, tetrahydrofuranyl, and the like. Heterocyclyl may include multiple fused and bridged rings. Non-limiting examples of fused/bridged heteorocyclyl includes: 2-azabicyclo[1.1.0]butanyl, 2-azabicyclo[2.1.0]pentanyl, 2-azabicyclo[1.1.1]pentanyl, 3-azabicyclo[3.1.0]hexanyl, 5-azabicyclo[2.1.1]hexanyl, 3-azabicyclo[3.2.0]heptanyl, octahydrocyclopenta[c]pyrrolyl, 3-azabicyclo[4.1.0]heptanyl, 7-azabicyclo[2.2.1]heptanyl, 6-azabicyclo[3.1.1]heptanyl, 7-azabicyclo[4.2.0]octanyl, 2-azabicyclo[2.2.2]octanyl, 3-azabicyclo[3.2.1]octanyl, 2-oxabicyclo[1.1.0]butanyl, 2-oxabicyclo[2.1.0]pentanyl, 2-oxabicyclo[1.1.1]pentanyl, 3-oxabicyclo[3.1.0]hexanyl, 5-oxabicyclo[2.1.1]hexanyl, 3-oxabicyclo[3.2.0]heptanyl, 3-oxabicyclo[4.1.0]heptanyl, 7-oxabicyclo[2.2.1]heptanyl, 6-oxabicyclo[3.1.1]heptanyl, 7-oxabicyclo[4.2.0]octanyl, 2-oxabicyclo[2.2.2]octanyl, 3-oxabicyclo[3.2.1]octanyl, and the like. Heterocyclyl also includes spirocyclic rings (e.g., spirocyclic bicycle wherein two rings are connected through just one atom). Non-limiting examples of spirocyclic heterocyclyls include 2-azaspiro[2.2]pentanyl, 4-azaspiro[2.5]octanyl, 1-azaspiro[3.5]nonanyl, 2-azaspiro[3.5]nonanyl, 7-azaspiro[3.5]nonanyl, 2-azaspiro[4.4]nonanyl, 6-azaspiro[2.6]nonanyl, 1,7-diazaspiro[4.5]decanyl, 7-azaspiro[4.5]decanyl 2,5-diazaspiro[3.6]decanyl, 3-azaspiro[5.5]undecanyl, 2-oxaspiro[2.2]pentanyl, 4-oxaspiro[2.5]octanyl, 1-oxaspiro[3.5]nonanyl, 2-oxaspiro[3.5]nonanyl, 7-oxaspiro[3.5]nonanyl, 2-oxaspiro[4.4]nonanyl, 6-oxaspiro[2.6]nonanyl, 1,7-dioxaspiro[4.5]decanyl, 2,5-dioxaspiro[3.6]decanyl, 1-oxaspiro[5.5]undecanyl, 3-oxaspiro[5.5]undecanyl, 3-oxa-9-azaspiro[5.5]undecanyl and the like. The term “saturated” as used in this context means only single bonds present between constituent ring atoms and other available valences occupied by hydrogen and/or other substituents as defined herein.


The term “heterocycloalkenyl” as used herein means partially unsaturated cyclic ring system with 3-16 ring atoms (e.g., 5-8 membered monocyclic, 8-12 membered bicyclic, or 11-14 membered tricyclic ring system) having 1-3 heteroatoms if monocyclic, 1-6 heteroatoms if bicyclic, or 1-9 heteroatoms if tricyclic or polycyclic, said heteroatoms selected from O, N, or S (e.g., carbon atoms and 1-3, 1-6, or 1-9 heteroatoms of N, O, or S if monocyclic, bicyclic, or tricyclic, respectively), wherein 0, 1, 2 or 3 atoms of each ring may be substituted by a substituent. Examples of heterocycloalkenyl groups include, without limitation, tetrahydropyridyl, dihydropyrazinyl, dihydropyridyl, dihydropyrrolyl, dihydrofuranyl, dihydrothiophenyl. As partially unsaturated cyclic groups, heterocycloalkenyl groups may have any degree of unsaturation provided that one or more double bonds is present in the ring, none of the rings in the ring system are aromatic, and the heterocycloalkenyl group is not fully saturated overall. Heterocycloalkenyl may include multiple fused and/or bridged and/or spirocyclic rings.


As used herein, when a ring is described as being “aromatic”, it means said ring has a continuous, delocalized π-electron system. Typically, the number of out of plane π-electrons corresponds to the Hückel rule (4n+2). Examples of such rings include: benzene, pyridine, pyrimidine, pyrazine, pyridazine, pyridone, pyrrole, pyrazole, oxazole, thioazole, isoxazole, isothiazole, and the like.


As used herein, when a ring is described as being “partially unsaturated”, it means said ring has one or more additional degrees of unsaturation (in addition to the degree of unsaturation attributed to the ring itself, e.g., one or more double or triple bonds between constituent ring atoms), provided that the ring is not aromatic. Examples of such rings include: cyclopentene, cyclohexene, cycloheptene, dihydropyridine, tetrahydropyridine, dihydropyrrole, dihydrofuran, dihydrothiophene, and the like.


For the avoidance of doubt, and unless otherwise specified, for rings and cyclic groups (e.g., aryl, heteroaryl, heterocyclyl, heterocycloalkenyl, cycloalkenyl, cycloalkyl, and the like described herein) containing a sufficient number of ring atoms to form bicyclic or higher order ring systems (e.g., tricyclic, polycyclic ring systems), it is understood that such rings and cyclic groups encompass those having fused rings, including those in which the points of fusion are located (i) on adjacent ring atoms (e.g., [x.x.0] ring systems, in which 0 represents a zero atom bridge




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(ii) a single ring atom (spiro-fused ring systems)




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or (iii) a contiguous array of ring atoms (bridged ring systems having all bridge lengths>0)




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In addition, atoms making up the compounds of the present embodiments are intended to include all isotopic forms of such atoms. Isotopes, as used herein, include those atoms having the same atomic number but different mass numbers. By way of general example and without limitation, isotopes of hydrogen include tritium and deuterium, and isotopes of carbon include 13C and 14C.


In addition, the compounds generically or specifically disclosed herein are intended to include all tautomeric forms. Thus, by way of example, a compound containing the moiety:




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encompasses the tautomeric form containing the moiety:




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Similarly, a pyridinyl or pyrimidinyl moiety that is described to be optionally substituted with hydroxyl encompasses pyridone or pyrimidone tautomeric forms.


The details of one or more embodiments of the invention are set forth in the accompanying drawings and the description below. Other features and advantages of the invention will be apparent from the description and drawings, and from the claims.







DETAILED DESCRIPTION

This disclosure features chemical entities (e.g., a compound or a pharmaceutically acceptable salt, and/or hydrate, and/or cocrystal, and/or drug combination of the compound) that inhibit (e.g., antagonize) Stimulator of Interferon Genes (STING). Said chemical entities are useful, e.g., for treating a condition, disease or disorder in which increased (e.g., excessive) STING activation (e.g., STING signaling) contributes to the pathology and/or symptoms and/or progression of the condition, disease or disorder (e.g., cancer) in a subject (e.g., a human). This disclosure also features compositions containing the same as well as methods of using and making the same.


Formula I, II, and III Compounds


In one aspect, the disclosure features compounds of Formula (I):




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or a pharmaceutically acceptable salt thereof or a tautomer thereof, wherein:


P1, P2, P3, P4, and P5 are each independently selected from the group consisting of: N, NH, NRd, NR7, CH, CRc, CR7, and C(═O), provided that 1-3, such as 1, of P2, P3, and P4 is CR7 or NR7;


each occurrence of R7 is independently -(LA)a1-R8, wherein:


each LA is independently selected from the group consisting of: C1-3 alkylene optionally substituted with 1-4 Ra1; —O—; —NRN; —S(O)0-2; C(O); C(O)O; OC(O); NRNC(O); C(O)NRN; NRNC(O)NRN; NRNC(O)O; and OC(O)NRN;


a1 is 0, 1, 2, or 3; and


each occurrence of R8 is independently Rg or C1-10 alkyl optionally substituted with 1-6 Ra1;


Z, Y1, Y2, and Y3 are independently selected from the group consisting of CR1, C(═O), N, and NR2;


X1 is selected from the group consisting of O, S, N, NR2, and CR1;


X2 is selected from the group consisting of O, S, N, NR4, and CR5; provided that:


(1) when each one of Z, Y1, and Y2 is CR1, then Y3 cannot be N; and


(2) when each one of Z, Y1, Y2, and Y3 is CR1, then at least one R1 is other than H;


each custom-character is independently a single bond or a double bond, provided that the five-membered ring comprising X1 and X2 is heteroaryl; the six-membered ring comprising Z, Y1, Y2, and Y3 is aryl or heteroaryl; and the six-membered ring comprising P1, P2, P3, P4, and P5 is aryl or heteroaryl;


each R1 is independently selected from the group consisting of: H; Rc; Rg; and -(L1)b1-Rg;


each R2 is independently selected from the group consisting of: H; Rd; Rg; and -(L2)b2-Rg;


R4 is selected from the group consisting of: H and Rd;


R5 is selected from the group consisting of: H; Rc; and Rh;


R6 is selected from the group consisting of: H; Rd; and Rh;


each occurrence of Ra and Ra1 is independently selected from the group consisting of: —OH; -halo; —NReRf; C1-4 alkoxy; C1-4 haloalkoxy; —C(═O)O(C1-4 alkyl); —C(═O)(C1-4 alkyl); —C(═O)OH; —CONR′R″; —S(O)1-2NR′R″; —S(O)1-2(C1-4 alkyl); and cyano;


each occurrence of Rc is independently selected from the group consisting of: halo; cyano; C1-10 alkyl which is optionally substituted with 1-6 independently selected Ra; C2-6 alkenyl; C2-6 alkynyl; C1-4 alkoxy optionally substituted with C1-4 alkoxy or C1-4 haloalkoxy; C1-4 haloalkoxy; —S(O)1-2(C1-4 alkyl); —S(O)(═NH)(C1-4 alkyl); —NReRf; —OH; —S(O)1-2NR′R″; —C1-4 thioalkoxy; —NO2; —C(═O)(C1-10 alkyl); —C(═O)O(C1-4 alkyl); —C(═O)OH; —C(═O)NR′R″; and —SF5;


each occurrence of Rd is independently selected from the group consisting of: C1-6 alkyl optionally substituted with 1-3 independently selected Ra; —C(O)(C1-4 alkyl); —C(O)O(C1-4 alkyl); —CONR′R″; —S(O)1-2NR′R″; —S(O)1-2(C1-4 alkyl); —OH; and C1-4 alkoxy;


each occurrence of Re and Rf is independently selected from the group consisting of: H; C1-6 alkyl optionally substituted with 1-3 substituents each independently selected from the group consisting of NR′R″, —OH, and Ri; —C(O)(C1-4 alkyl); —C(O)O(C1-4 alkyl); —CONR′R″; —S(O)1-2NR′R″; —S(O)1-2(C1-4 alkyl); —OH; and C1-4 alkoxy;


each occurrence of Rg is independently selected from the group consisting of:

    • C3-12 cycloalkyl or C3-12 cycloalkenyl, each of which is optionally substituted with 1-4 substituents independently selected from the group consisting of oxo, Rc, Rh, and -(Lg)bg-Rh;
    • heterocyclyl or heterocycloalkenyl of 3-12 ring atoms, wherein 1-3 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S(O)0-2, and wherein the heterocyclyl or heterocycloalkenyl is optionally substituted with 1-4 substituents independently selected from the group consisting of oxo, Rc, Rh, and -(Lg)bg-Rh;
    • heteroaryl of 5-12 ring atoms, wherein 1-4 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S(O)0-2, and wherein the heteroaryl is optionally substituted with 1-4 substituents independently selected from the group consisting of Rc, Rh, and -(Lg)bg-Rh; and
    • C6-10 aryl optionally substituted with 1-4 substituents independently selected from the group consisting of Rc, Rh, and -(Lg)bg-Rh;


each occurrence of Rh is independently selected from the group consisting of:

    • C3-12 cycloalkyl or C3-12 cycloalkenyl, each of which is optionally substituted with 1-4 Ri;
    • heterocyclyl or heterocycloalkenyl of 3-12 ring atoms, wherein 1-3 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S(O)0-2, and wherein the heterocyclyl or heterocycloalkenyl is optionally substituted with 1-4 Ri;
    • heteroaryl of 5-12 ring atoms, wherein 1-4 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S(O)0-2, and wherein the heteroaryl is optionally substituted with 1-4 Ri; and
    • C6-10 aryl optionally substituted with 1-4 Ri;


each occurrence of R1 is independently selected from the group consisting of: C1-6 alkyl; C1-4 haloalkyl; C1-4 alkoxy; C1-4 haloalkoxy; C1-6 alkyl-O—C1-6 alkyl-; C1-4 haloalkyl-O—C1-6 alkyl-; halo; cyano; —OH; —NR′R″; and C3-6 cycloalkyl;


each occurrence of L1, L2, and Lg is independently selected from the group consisting of: —O—, —NH—, —NRd, —S(O)0-2, C(O), and C1-3 alkylene optionally substituted with 1-3 Ra;


b1, b2, and bg are each independently 1, 2, or 3;


each occurrence of R′ and R″ is independently selected from the group consisting of: H; —OH; and C1-4 alkyl; and


each occurrence of RN is independently H or Rd;


provided that the six-membered ring including P1, P2, P3, P4, and P5 is other than:




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In some embodiments of Formula (I), from 0-1 of Z, Y1, Y2, and Y3 is N or NR2.


In some embodiments of Formula (I), it is provided that one or more of the compound provisions herein apply.


In another aspect, provided herein is a compound of Formula (II):




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or a pharmaceutically acceptable salt thereof or a tautomer thereof, wherein:


P1, P2, P3, P4, and P5 are each independently selected from the group consisting of: N, NH, NRd, NR7, CH, CRc, CR7, and C(═O), provided that 1-3, such as 1, of P2, P3, and P4 is CR7 or NR7;

    • each occurrence of R7 is independently -(LA)a1-R8, wherein:
    • each LA is independently selected from the group consisting of: C1-3 alkylene optionally substituted with 1-2 Ra1; —O—; —NRN; —S(O)0-2; C(O); C(O)O; OC(O); NRNC(O); C(O)NRN; NRNC(O)NRN; NRNC(O)O; and OC(O)NRN;


a1 is 0, 1, 2, or 3; and


each occurrence of R8 is independently Rg or C1-10 alkyl optionally substituted with 1-6 Ra1;


X1 is selected from the group consisting of O, S, N, NR2, and CR1;


X2 is selected from the group consisting of O, S, N, NR4, and CR5;


each custom-character is independently a single bond or a double bond, provided that the five-membered ring comprising X1 and X2 is heteroaryl; and the six-membered ring comprising P1, P2, P3, P4, and P5 is aryl or heteroaryl;


R1 is selected from the group consisting of: H; Rc; Rg; and -(L1)b1-Rg;


R2 is selected from the group consisting of: H; Rd; Rg; and -(L2)b2-Rg;


R4 is selected from the group consisting of: H and Rd;


R5 is selected from the group consisting of: H; Rc; and Rh;


R6 is selected from the group consisting of: H; Rd; and Rh, each occurrence of Ra and Ra1 is independently selected from the group consisting of: —OH; -halo; —NReRf; C1-4 alkoxy; C1-4 haloalkoxy; —C(═O)O(C1-4 alkyl); —C(═O)(C1-4 alkyl); —C(═O)OH; —CONR′R″; —S(O)1-2NR′R″; —S(O)1-2(C1-4 alkyl); and cyano;


each occurrence of Rc is independently selected from the group consisting of: halo; cyano; C1-10 alkyl which is optionally substituted with 1-6 independently selected Ra; C2-6 alkenyl; C2-6 alkynyl; C1-4 alkoxy optionally substituted with C1-4 alkoxy or C1-4 haloalkoxy; C1-4 haloalkoxy; —S(O)1-2(C1-4 alkyl); —S(O)(═NH)(C1-4 alkyl); —NReRf; —OH; —S(O)1-2NR′R″; —C1-4 thioalkoxy; —NO2; —C(═O)(C1-10 alkyl); —C(═O)O(C1-4 alkyl); —C(═O)OH; —C(═O)NR′R″; and —SF5;


each occurrence of Rd is independently selected from the group consisting of: C1-6 alkyl optionally substituted with 1-3 independently selected Ra; —C(O)(C1-4 alkyl); —C(O)O(C1-4 alkyl); —CONR′R″; —S(O)1-2NR′R″; —S(O)1-2(C1-4 alkyl); —OH; and C1-4 alkoxy;


each occurrence of Re and Rf is independently selected from the group consisting of: H; C1-6 alkyl optionally substituted with 1-3 substituents each independently selected from the group consisting of NR′R″, —OH, and Ri; —C(O)(C1-4 alkyl); —C(O)O(C1-4 alkyl); —CONR′R″; —S(O)1-2NR′R″; —S(O)1-2(C1-4 alkyl); —OH; and C1-4 alkoxy;


each occurrence of Rg is independently selected from the group consisting of:

    • C3-12 cycloalkyl or C3-12 cycloalkenyl, each of which is optionally substituted with 1-4 substituents independently selected from the group consisting of oxo, Rc, Rh, and -(Lg)bg-Rh;
    • heterocyclyl or heterocycloalkenyl of 3-12 ring atoms, wherein 1-3 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S(O)0-2, and wherein the heterocyclyl or heterocycloalkenyl is optionally substituted with 1-4 substituents independently selected from the group consisting of oxo, Rc, Rh, and -(Lg)bg-Rh;
    • heteroaryl of 5-12 ring atoms, wherein 1-4 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S(O)0-2, and wherein the heteroaryl is optionally substituted with 1-4 substituents independently selected from the group consisting of Rc, Rh, and -(Lg)bg-Rh; and
    • C6-10 aryl optionally substituted with 1-4 substituents independently selected from the group consisting of Rc, Rh, and -(Lg)bg-Rh;


each occurrence of Rh is independently selected from the group consisting of:

    • C3-12 cycloalkyl or C3-12 cycloalkenyl, each of which is optionally substituted with 1-4 Ri;
    • heterocyclyl or heterocycloalkenyl of 3-12 ring atoms, wherein 1-3 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S(O)0-2, and wherein the heterocyclyl or heterocycloalkenyl is optionally substituted with 1-4 Ri;
    • heteroaryl of 5-12 ring atoms, wherein 1-4 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S(O)0-2, and wherein the heteroaryl is optionally substituted with 1-4 Ri; and
    • C6-10 aryl optionally substituted with 1-4 Ri;


each occurrence of R1 is independently selected from the group consisting of: C1-6 alkyl; C1-4 haloalkyl; C1-4 alkoxy; C1-4 haloalkoxy; C1-6 alkyl-O—C1-6 alkyl-; C1-4 haloalkyl-O—C1-6 alkyl-; halo; cyano; —OH; —NR′R″; and C3-6 cycloalkyl;


each occurrence of L1, L2, and L9 is independently selected from the group consisting of: —O—, —NH—, —NRd, —S(O)0-2, C(O), and C1-3 alkylene optionally substituted with 1-3 Ra;


b1, b2, and bg are each independently 1, 2, or 3;


each occurrence of R′ and R″ is independently selected from the group consisting of: H; —OH; and C1-4 alkyl; and


each occurrence of RN is independently H or Rd.


In some embodiments of Formula (II), it is provided that the ring including P1, P2, P3, P4, and P5 is other than:


(i) phenyl, pyridyl, or pyrimidinyl, each substituted with one substituent selected from the group consisting of: OMe; CH2NH2; CH2NHC(O)OMe; CH2NHC(O)OEt; CH2NHC(O)Me; CH2NHC(O)N(Me)2; CH2NHS(O)2Me; methyl; tert-butyl; NHMe; morpholinyl; CH2OH; 1,2,4-triazolyl; or trisubstituted pyrazolyl;


(ii) pyrimidinyl substituted with two substituents each independently selected from the group consisting of: methyl, ethyl, and pyrrolidinyl; and




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In some embodiments of Formula (II), it is provided that one or more of the compound provisions herein apply.


In another aspect, provided herein is a compound of Formula (III)




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or a pharmaceutically acceptable salt thereof or a tautomer thereof, wherein:


P1, P2, P3, P4, and P5 are each independently selected from the group consisting of: N, NH, NRd, NR7, CH, CRc, CR7, and C(═O), provided that 1-3, such as 1, of P2, P3, and P4 is CR7 or NR7;


each occurrence of R7 is independently -(LA)a1-R8, wherein:


each LA is independently selected from the group consisting of: C1-3 alkylene optionally substituted with 1-2 Ra1; —O—; —NRN; —S(O)0-2; C(O); C(O)O; OC(O); NRNC(O); C(O)NRN; NRNC(O)NRN; NRNC(O)O; and OC(O)NRN;


a1 is 0, 1, 2, or 3; and


each occurrence of R8 is independently Rg or C1-10 alkyl optionally substituted with 1-6 Ra1;


X1 is selected from the group consisting of O, S, N, NR2, and CR1;


X2 is selected from the group consisting of O, S, N, NR4, and CR5; provided that:


each custom-character is independently a single bond or a double bond, provided that the five-membered ring comprising X1 and X2 is heteroaryl; and the six-membered ring comprising P1, P2, P3, P4, and P5 is aryl or heteroaryl;


R1, R1a, R1b, and R1c are each independently selected from the group consisting of: H; Rc; Rg; and -(L1)b1-Rg;


each R2 is independently selected from the group consisting of: H; Rd; Rg; and -(L2)b2-Rg,


R4 is selected from the group consisting of: H and Rd;


R5 is selected from the group consisting of: H; Rc; and Rh;


R6 is selected from the group consisting of: H; Rd; and Rh, each occurrence of Ra and Ra1 is independently selected from the group consisting of: —OH; -halo; —NReRf; C1-4 alkoxy; C1-4 haloalkoxy; —C(═O)O(C1-4 alkyl); —C(═O)(C1-4 alkyl); —C(═O)OH; —CONR′R″; —S(O)1-2NR′R″; —S(O)1-2(C1-4 alkyl); and cyano;


each occurrence of Rc is independently selected from the group consisting of: halo; cyano; C1-10 alkyl which is optionally substituted with 1-6 independently selected Ra; C2-6 alkenyl; C2-6 alkynyl; C1-4 alkoxy optionally substituted with C1-4 alkoxy or C1-4 haloalkoxy; C1-4 haloalkoxy; —S(O)1-2(C1-4 alkyl); —S(O)(═NH)(C1-4 alkyl); —NReRf; —OH; —S(O)1-2NR′R″; —C1-4 thioalkoxy; —NO2; —C(═O)(C1-10 alkyl); —C(═O)O(C1-4 alkyl); —C(═O)OH; —C(═O)NR′R″; and —SF5;


each occurrence of Rd is independently selected from the group consisting of: C1-6 alkyl optionally substituted with 1-3 independently selected Ra; —C(O)(C1-4 alkyl); —C(O)O(C1-4 alkyl); —CONR′R″; —S(O)1-2NR′R″; —S(O)1-2(C1-4 alkyl); —OH; and C1-4 alkoxy;


each occurrence of Re and Rf is independently selected from the group consisting of: H; C1-6 alkyl optionally substituted with 1-3 substituents each independently selected from the group consisting of NR′R″, —OH, and Ri; —C(O)(C1-4 alkyl); —C(O)O(C1-4 alkyl); —CONR′R″; —S(O)1-2NR′R″; —S(O)1-2(C1-4 alkyl); —OH; and C1-4 alkoxy;


each occurrence of Rg is independently selected from the group consisting of:

    • C3-12 cycloalkyl or C3-12 cycloalkenyl, each of which is optionally substituted with 1-4 substituents independently selected from the group consisting of oxo, Rc, Rh, and -(Lg)bg-Rh;
    • heterocyclyl or heterocycloalkenyl of 3-12 ring atoms, wherein 1-3 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S(O)0-2, and wherein the heterocyclyl or heterocycloalkenyl is optionally substituted with 1-4 substituents independently selected from the group consisting of oxo, Rc, Rh, and -(Lg)bg-Rh;
    • heteroaryl of 5-12 ring atoms, wherein 1-4 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S(O)0-2, and wherein the heteroaryl is optionally substituted with 1-4 substituents independently selected from the group consisting of Rc, Rh, and -(Lg)bg-Rh; and
    • C6-10 aryl optionally substituted with 1-4 substituents independently selected from the group consisting of Rc, Rh, and -(Lg)bg-Rh;


each occurrence of Rh is independently selected from the group consisting of:

    • C3-12 cycloalkyl or C3-12 cycloalkenyl, each of which is optionally substituted with 1-4 Ri;
    • heterocyclyl or heterocycloalkenyl of 3-12 ring atoms, wherein 1-3 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S(O)0-2, and wherein the heterocyclyl or heterocycloalkenyl is optionally substituted with 1-4 Ri;
    • heteroaryl of 5-12 ring atoms, wherein 1-4 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S(O)0-2, and wherein the heteroaryl is optionally substituted with 1-4 Ri; and
    • C6-10 aryl optionally substituted with 1-4 Ri;


each occurrence of Ri is independently selected from the group consisting of: C1-6 alkyl; C1-4 haloalkyl; C1-4 alkoxy; C1-4 haloalkoxy; C1-6 alkyl-O—C1-6 alkyl-; C1-4 haloalkyl-O—C1-6 alkyl-; halo; cyano; —OH; —NR′R″; and C3-6 cycloalkyl;


each occurrence of L1, L2, and Lg is independently selected from the group consisting of: —O—, —NH—, —NRd, —S(O)0-2, C(O), and C1-3 alkylene optionally substituted with 1-3 Ra;


b1, b2, and bg are each independently 1, 2, or 3;


each occurrence of R′ and R″ is independently selected from the group consisting of: H; —OH; and C1-4 alkyl; and


each occurrence of RN is independently H or Rd.


In some embodiments of Formula (III), it is provided that R1a is other than monocyclic heterocyclyl of 5-6 ring atoms, wherein from 1-2 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S(O)0-2, and wherein the heterocyclyl is optionally substituted with from 1-4 substituents independently selected from the group consisting of oxo, Rc, Rh, and -(Lg)bg-Rh.


In some embodiments of Formula (III), it is provided that the ring including P1, P2, P3, P4, and P5 is other than:




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(ii) phenyl, pyridyl, pyridonyl, or pyridazinonyl substituted with one substituent selected from the group consisting of: OMe; methyl; trifluoromethyl; NHC(O)Me; NMe2; CH2CH2-pyrrolindinyl; or


(iii) 3-fluoro-4-methoxyphenyl; 2-fluoro-5-methylphenyl; or dimethoxypyridyl.


In some embodiments of Formula (III), it is provided that one or more of the compound provisions herein apply.


The Variables Z, Y1, Y2, Y3, X1, and X2


In some embodiments of Formula (I), each of Z, Y1, Y2, and Y3 is independently N or CR1.


In some embodiments, the compound of Formula (I) is a compound of Formula (Ia):




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or a pharmaceutically acceptable salt thereof, wherein: R1a, R1b, R1c, and R1d are each an independently selected R1.


In some embodiments of Formula (I), one of Z, Y1, and Y2 is N; and each remaining of Z, Y1, Y2, and Y3 is an independently selected CR1.


In some embodiments, the compound of Formula (I) is selected from the group consisting of a compound of the following formulae:




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or a pharmaceutically acceptable salt thereof, wherein: R1a, R1b, R1c, and R1d are each an independently selected R1.


In certain of these embodiments, the compound of Formula (I) is a compound of Formula (Ib) or a pharmaceutically acceptable thereof.


In certain embodiments, the compound of Formula (I) is a compound of Formula (Ic) or a pharmaceutically acceptable thereof.


In certain embodiments, the compound of Formula (I) is a compound of Formula (Id) or a pharmaceutically acceptable thereof.


In some embodiments of Formulae (I), (II), or (III), X1 is NR2. In certain embodiments of Formulae (I), (II), or (III), X1 is NH.


In some embodiments of Formulae (I), (II), or (III), X2 is CR5. In certain embodiments of Formulae (I), (II), or (III), X2 is CH.


In some embodiments of Formulae (I), (II), or (III), X1 is NR2; and X2 is CR5. In certain of these embodiments, X1 is NH; and X2 is CH.


In some embodiments, the compound of Formula (I) is a compound of Formula (Ia-1):




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or a pharmaceutically acceptable salt thereof, wherein: R1a, R1b, R1c, and R1d are each an independently selected R1.


In some embodiments, the compound of Formula (I) is selected from the group consisting of a compound of the following formulae:




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or a pharmaceutically acceptable salt thereof, wherein: R1a, R1b, R1c, and R1d are each an independently selected R1.


In certain of these embodiments, the compound of Formula (I) is a compound of Formula (Ib-1), or a pharmaceutically acceptable salt thereof.


In certain embodiments, the compound of Formula (I) is a compound of Formula (Ic-1), or a pharmaceutically acceptable salt thereof.


In certain embodiments, the compound of Formula (I) is a compound of Formula (Id-1), or a pharmaceutically acceptable salt thereof.


In some embodiments, the compound of Formula (II) is a compound of Formula




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or a pharmaceutically acceptable salt thereof.


In some embodiments, the compound of Formula (III) is compound of a compound of Formula (III-1):




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or a pharmaceutically acceptable salt thereof.


In some embodiments of Formulae (Ia-1), (Ib-1), (Ic-1), (I-d1), (II-1), or (III-1), R2 is H. In some embodiments of Formulae (Ia-1), (Ib-1), (Ic-1), (I-d1), (II-1), or (III-1), R5 is H. In certain of these embodiments, R2 is H; and R5 is H.


The Variables R1, R1a, R1b, R1c, and R1d.


In some embodiments of Formula (I), from 1-2 R1 is independently selected from the group consisting of Rc1 and Rg1; and each remaining R1 is H, wherein Rc1 is an independently selected Rc; and Rg1 is an independently selected Rg.


In certain of these embodiments, two occurrences of R1 are independently selected from the group consisting of: Rc1 and R1; and each remaining R1 is H. In certain embodiments, two occurrences of R1 are independently selected Rc1; and each remaining R1 is H. In certain embodiments, one occurrence of R1 is selected from the group consisting of: Rc1 and Rg1; and each remaining R1 is H. In certain embodiments, one occurrence of R1 is Rc1; and each remaining R1 is H. In certain embodiments, one occurrence of R1 is Rg1; and each remaining R1 is H. In certain embodiments, one occurrence of R1 is Rc1; one occurrence of R1 is Rg1; and each remaining R1 is H.


In certain embodiments, each Rc1 is an independently selected halo, cyano, C1-3 alkyl, C1-3 alkoxy, C1-3 haloalkoxy, or C1-3 alkyl substituted with from 1-6 independently selected halo, such as wherein Rc1 is —F, —Cl, or —CN. As non-limiting examples of the foregoing embodiments, each Rc1 is independently —F or —Cl, such as —F.


In certain embodiments, each Rg1 is independently selected from the group consisting of:

    • heteroaryl of 5-10 ring atoms, wherein from 1-3 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S, and wherein the heteroaryl is optionally substituted with from 1-4 substituents independently selected from the group consisting of Rc, Rh, and -(Lg)bg-Rh; and
    • C6-10 aryl optionally substituted with from 1-4 substituents independently selected from the group consisting of Rc, Rh, and -(LA)bg-Rh.


In certain of the foregoing embodiments, each Rg1 is independently selected from the group consisting of:

    • heteroaryl of 5-6 ring atoms, wherein from 1-3 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S, and wherein the heteroaryl is optionally substituted with from 1-4 Rc; and
    • C6 aryl optionally substituted with from 1-4 Rc.


In certain embodiments, each Rg1 is independently heteroaryl of 5 ring atoms, wherein from 1-3 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S, and wherein the heteroaryl is optionally substituted with from 1-4 Rc. As non-limiting examples of the foregoing embodiments, each Rg1 can be pyrazolyl that is optionally substituted with from 1-2 Rc, such from 1-2 independently selected C1-6 (e.g., C1-3) alkyl which is optionally substituted with from 1-6 independently selected Ra (e.g., unsubstituted C1-6 (e.g., C1-3) alkyl). For example, Rg1 can be




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and optionally Rc is C1-6 (e.g., C1-3) alkyl which is optionally substituted with from 1-6 independently selected Ra.


In certain embodiments, each Rg1 is independently selected from the group consisting of:

    • heteroaryl of 5-10 ring atoms, wherein from 1-3 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S, and wherein the heteroaryl is substituted with one occurrence of Rh1 or -(Lg)bg-Rh1 (such as Rh1 or —CH2-Rh1) and further optionally substituted with from 1-2 Rc; and
    • C6-10 aryl that is substituted with one occurrence of Rh1 or -(Lg)bg-Rh1 (such as Rh1 or —CH2—Rh1) and further optionally substituted with from 1-2 Rc, wherein Rh1 is an independently selected Rh.


In certain of these embodiments, each Rg1 is heteroaryl of 5-6 (such as 5) ring atoms, wherein from 1-3 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S, and wherein the heteroaryl is substituted with one occurrence of Rh1 or -(Lg)bg-Rh1 (such as Rh1 or —CH2—Rh1) and further optionally substituted with from 1-2 Rc, wherein Rh1 is an independently selected Rh. As non-limiting examples of the foregoing embodiments, each Rg1 is pyrazolyl that is substituted with Rh1 or -(Lg)bg-Rh1 (such as Rh1 or —CH2Rh1) and further optionally substituted with from 1-2 Rc. For example, each Rg1 can be




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each of which is optionally substituted with Rc.


In certain embodiments, Rh1 is selected from the group consisting of:

    • heteroaryl of 5-6 ring atoms, wherein from 1-3 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S(O)0-2, and wherein the heteroaryl is optionally substituted with from 1-4 Ri; and
    • C6 aryl optionally substituted with from 1-4 Ri, such as: wherein Rg1 is phenyl optionally substituted with from 1-4 Ri.


In certain of these embodiments, Rh1 is selected from the group consisting of:

    • heteroaryl of 5-6 ring atoms, wherein from 1-3 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S(O)0-2, and wherein the heteroaryl is optionally substituted with from 1-2 Ri; and
    • C6 aryl optionally substituted with from 1-2 Ri, such as wherein Rg1 is phenyl optionally substituted with from 1-4 Ri.


In some embodiments of Formulae (Ia), (Ib), (Ic), (Ia-1), (Ib-1), (Ic-1), (III), or, (III-1), R1a H.


In some embodiments of Formulae (Ia), (Ib), (Id), (Ia-1), (Ib-1), (Id-1), (III), or, (III-1), R1b is H.


In some embodiments of Formulae (Ia), (Ib), (Id), (Ia-1), (Ib-1), (Id-1), (III), or, (III-1), R1b is halo, such as —F or —Cl (e.g., —F).


In some embodiments of Formulae (Ia), (Ib), (Id), (Ia-1), (Ib-1), (Id-1), (III), or, (III-1), R1b is heteroaryl of 5 ring atoms, wherein from 1-3 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S, and wherein the heteroaryl is optionally substituted with from 1-2 Rc. As non-limiting examples of the foregoing embodiments, R1b can be pyrazolyl that is optionally substituted with from 1-2 Rc, such as each Rc is an independently selected C1-6 (e.g., C1-3) alkyl which is optionally substituted with from 1-6 independently selected Ra (e.g., unsubstituted).


In some embodiments of Formulae (Ia), (Ib), (Id), (Ia-1), (Ib-1), (Id-1), (III), or, (III-1), R1b is heteroaryl of 5-6 (such as 5) ring atoms, wherein from 1-3 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S, and wherein the heteroaryl is substituted with one occurrence of Rh1 or -(Lg)bg-Rh1 (such as Rh1 or —CH2—Rh1) and further optionally substituted with from 1-2 Rc, wherein Rh1 is an independently selected Rh. As non-limiting examples of the foregoing embodiments, R1l can be pyrazolyl that is substituted with Rh1 or -(Lg)bg-Rh1 (such as Rh1 or —CH2Rh1) and further optionally substituted with from 1-2 Rc, such as wherein R1l is




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each of which is optionally substituted with Rc.


In some embodiments of Formulae (Ia), (Ic), (Id), (Ia-1), (Ic-1), (Id-1), (III), or, (III-1), R1c is H.


In some embodiments of Formulae (Ia), (Ic), (Id), (Ia-1), (Ic-1), (Id-1), (III), or, (III-1), R1c is halo, such as —F or —Cl.


In some embodiments of Formulae (Ia), (Ib), (Ic), (Id), (Ia-1), (Ib-1), (Ic-1), or (Id-1), R1d is H. In some embodiments of Formulae (Ia), (Ib), (Ic), (Id), (Ia-1), (Ib-1), (Ic-1), or (Id-1), R1d is halo, such as —F or —Cl (e.g., —F).


In some embodiments of Formulae (Ia), (Ib), (Ic), (Id), (Ia-1), (Ib-1), (Ic-1), (Id-1), (III), or (III-1), R″ and R1d when present are H; and R1b and R1c when present are independently selected halo, such as —F or —Cl, such as —F; such as: wherein R1b and R1c when present are —F; or wherein R1b when present is —F, and R1c when present is —Cl; or wherein R1b when present is —Cl, and R1c when present is —F.


In some embodiments of Formulae (Ia), (Ib), (Ic), (Id), (Ia-1), (Ib-1), (Ic-1), (Id-1), (III), or (III-1), R1a and R1d when present are H; one of R1b and R1c when present is H; and the other one of R1b and R1c when present is halo, such as —F or —Cl, such as —F; such as: wherein R1b when present is H, and R1c when present is —F; or wherein R1b when present is H, and R1c when present is —Cl; or wherein R1b when present is —F, and R1c when present is H; or wherein R1b when present is —Cl, and R1c when present is H.


In some embodiments of Formulae (Ia), (Ib), (Ic), (Id), (Ia-1), (Ib-1), (Ic-1), (Id-1), (III), or (III-1), R1a and R1d when present are H; R1c when present is halo or H, such as —F, —Cl, or H; and R1b when present is heteroaryl of 5 ring atoms, wherein from 1-3 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S, and wherein the heteroaryl is optionally substituted with from 1-4 Rc.


In some embodiments of Formulae (Ia), (Ib), (Ic), (Id), (Ia-1), (Ib-1), (Ic-1), (Id-1), (III), or (III-1), R1a and R1d when present are H; R1c when present is halo or H, such as —F, —Cl, or H; and R1b when present is heteroaryl of 5-6 (such as 5) ring atoms, wherein from 1-3 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S, and wherein the heteroaryl is substituted with one occurrence of Rh1 or -(Lg)bg-Rh1 (such as Rh1 or —CH2—Rh1) and further optionally substituted with from 1-2 Rc, wherein Rh1 is an independently selected Rh.


In some embodiments of Formulae (Ia) or (Ia-1), R1a and R1d are H; and R1b and R1c are independently selected halo, such as —F or —Cl, such as —F; such as: wherein R1b and R1c are —F; or wherein R1b is —F, and R1c is —Cl; or wherein R1b is —Cl, and R1c is —F.


In some embodiments of Formulae (Ia) or (Ia-1), R1a and R1d are H; one of R1b and R1c is H; and the other one of R1b and R1c is halo, such as —F or —Cl, such as —F; such as: wherein R1b is H, and R1c is —F; or wherein R1b is H, and R1c is —Cl; or wherein R1b is —F, and R1c is H; or wherein R1b is —Cl, and R1c is H.


In some embodiments of Formulae (Ia) or (Ia-1), R1a and R1d are H; R1c is halo or H, such as —F, —Cl, or H; and R1b is heteroaryl of 5 ring atoms, wherein from 1-3 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S, and wherein the heteroaryl is optionally substituted with from 1-4 Rc.


In some embodiments of Formulae (Ia) or (Ia-1), R1a and R1d are H; R1c is halo or H, such as —F, —Cl, or H; and R1b is heteroaryl of 5-6 (such as 5) ring atoms, wherein from 1-3 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S, and wherein the heteroaryl is substituted with one occurrence of Rh1 or -(Lg)bg-Rh1 (such as Rh1 or —CH2—Rh1) and further optionally substituted with from 1-2 Rc, wherein Rh1 is an independently selected Rh.


The Variable R6

In some embodiments, R6 is H.


The Variables P1, P2, P3, P4, and P5


In some embodiments, P1 and P5 are independently CH or CRc; and P2, P3, and P4 are independently CH, CRc, or CR7.


In some embodiments, one of P1, P2, P3, P4, and P5 is N. In some embodiments, two of P1, P2, P3, P4, and P5 are N.


In some embodiments, one of P2, P3, and P4 is CR7.


In certain embodiments, P3 is CR7. In certain of these embodiments, P4 is N. In certain other embodiments, P4 is CH or CRc. In certain of the foregoing embodiments, P1 is N. In certain other embodiments, P1 is CH or CRc. In certain embodiments, P2 and P5 are independently CH or CRc.


In certain embodiments, P3 is CR7; P1, P2, P4, and P5 are independently CH or CRc.


In certain embodiments, the




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moiety has the formula:




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wherein n7 is 0, 1, or 2; and each Rc7 is an independently selected Rc, such as:




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In certain embodiments, P3 is CR7; P4 is N; and P1, P2, and P5 are independently CH or CRc.


In certain embodiments, the




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moiety has the formula:




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wherein n7 is 0, 1, or 2; and each Rc7 is an independently selected Rc, such as:




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In certain embodiments, P3 is CR7; P4 and P1 are N; and P2 and P5 are independently CH or CRc.


In certain embodiments, the




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moiety has the formula:




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wherein n7 is 0, 1, or 2; and each Rc7 is an independently selected Rc, such as:




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In some embodiments, P4 is CR7. In certain embodiments, P3 is N. In certain other embodiments, P3 is CH or CRc. In certain embodiments, P1, P2, and P5 are independently CH or CRc.


In certain embodiments, P4 is CR7; P3 is CH or CRc; and P1, P2, and P5 are independently CH or CRc.


In certain embodiments, the




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moiety has the formula:




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wherein n7 is 0, 1, or 2; and each Rc7 is an independently selected Rc, such as:




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In certain embodiments, P4 is CR7; P3 is N; and P1, P2, and P5 are independently CH or CRc.


In certain embodiments, the




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moiety has the formula:




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wherein n7 is 0, 1, or 2; and each Rc7 is an independently selected Rc, such as:




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In certain embodiments, the




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moiety has the formula:




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wherein n7 is 0, 1, or 2; and each Rc7 is an independently selected Rc.


In certain embodiments, each occurrence of Rc7 is independently selected from the group consisting of halo; cyano; C1-3 alkyl; C1-4 alkoxy; C1-4 haloalkoxy; and C1-3 alkyl substituted with from 1-6 independently selected halo, such as —F.


The Variables LA, a1, and R8


In some embodiments, a1 is 0. In some embodiments, a1 is 1. In some embodiments, a1 is 2. In some embodiments, a1 is 3.


In some embodiments, LA is —O—, —NH—, or —CH2—, such as wherein LA is —O—. In certain embodiment (when a1 is 1), LA is —O—, —NH—, or —CH2—, such as wherein LA is —O—. In certain embodiments, a1 is 1; and LA is —O—.


In certain embodiments, a1 is 2; and -(LA)a1- is -LA1-LA2, wherein LA1 and LA2 are independently selected LA; and LA2 is the point of attachment to R8. In certain of these embodiments, LA1 is —O—; and LA2 is C1-3 alkylene optionally substituted with from 1-2 Ra1, such as wherein LA1 is —O—; and LA2 is CH2.


In certain embodiments, a1 is 3; and -(LA)a1- is -LA1-LA2-LA3, wherein LA1 LA2 and LA3 are independently selected LA; and LA3 is the point of attachment to R8. In certain of these embodiments, LA1 and LA3 are each independently C1-3 alkylene optionally substituted with from 1-2 Ra1. In certain embodiments, LA2 is NRNC(O)O or OC(O)NRN.


In some embodiments, R8 is C1-10 alkyl optionally substituted with 1-4 Ra1.


In certain embodiments, R8 is C1-10 alkyl, such as C1-7 alkyl, such as C1, C2, C3, C4, C5, C6, or C7 alkyl, such as ethyl or isopropyl.


In certain embodiments, R8 is C1-10 alkyl substituted with 1-6 Ra1, such as C1, C2, C3, C4, C5, C6, or C7 alkyl substituted with from 1-6 Ra1. In certain embodiments, Ra1 is selected from the group consisting of: halo, such as —F; —OH; C1-4 alkoxy; and C1-4 haloalkoxy.


In certain embodiments, R8 is C1-10 alkyl substituted with 1-6 independently selected halo, such as C1, C2, C3, C4, C5, C6, or C7 alkyl substituted with from 1-6 independently selected halo. As non-limiting examples of the foregoing embodiments, R8 is C1-10 alkyl substituted with 1-6-F, such as C1, C2, C3, C4, C5, C6, or C7 alkyl substituted with from 1-6-F, such as




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In certain embodiments, R8 is C1-10 alkyl substituted with —OH, C1-4 alkoxy, or C1-4 haloalkoxy, such as C1, C2, C3, C4, C5, C6, or C7 alkyl substituted with from 1-6 independently selected C1-4 alkoxy, such as




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In some embodiments, R8 is Rg.


In certain embodiments, R8 is selected from the group consisting of:

    • C3-8 cycloalkyl or C3-8 cycloalkenyl, each of which is optionally substituted with from 1-4 substituents independently selected from the group consisting of oxo, Rc, Rh, and -(Lg)bg-Rh; and
    • heterocyclyl or heterocycloalkenyl of 4-8 ring atoms, wherein from 1-3 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S(O)0-2, and wherein the heterocyclyl or heterocycloalkenyl is optionally substituted with from 1-4 substituents independently selected from the group consisting of oxo, Rc, Rh, and -(Lg)bg-Rh.


In certain embodiments, R8 is selected from the group consisting of:

    • C3-8 cycloalkyl which is optionally substituted with from 1-4 substituents independently selected from the group consisting of oxo and Rc; and
    • heterocyclyl of 4-8 ring atoms, wherein from 1-2 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S(O)0-2, and wherein the heterocyclyl is optionally substituted with from 1-4 substituents independently selected from the group consisting of oxo and Rc.


In certain embodiments, R8 is selected from the group consisting of:

    • C3-8 cycloalkyl substituted with from 1-2 (such as 2) independently selected halo (such as —F) and further optionally substituted with from 1-2 substituents independently selected from the group consisting of oxo and Rc; and
    • heterocyclyl of 4-8 ring atoms, wherein from 1-2 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S(O)0-2, and wherein the heterocyclyl is substituted with from 1-2 (such as 2) independently selected halo (such as —F) and further optionally substituted with from 1-2 substituents independently selected from the group consisting of oxo and Rc.


As non-limiting examples of the foregoing embodiments, R8 can be selected from the group consisting of piperidinyl, pyrrolidinyl, azetidinyl, azaspiro[3.3]heptanyl, cyclobutyl, cyclopentyl, and cyclohexyl, each of which is substituted with 2-F and further optionally substituted with from 1-2 Rc, such as




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As another non-limiting example, R8 can be optionally substituted 3-azabicyclo[3.1.0]hexane, e.g.:




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In certain embodiments, R8 is selected from the group consisting of:

    • C3-8 cycloalkyl such as cyclopropyl, cyclohexyl, cyclobutyl, or cyclopentyl;
    • C3-8 cycloalkyl substituted with a substituent selected from the group consisting of: C1-4 alkoxy; C1-4 haloalkoxy; C1-4 alkoxy substituted with C1-4 alkoxy or C1-4 haloalkoxy; C1-4 haloalkyl; and C1-6 alkyl substituted from 1-6 independently selected halo, C1-4 alkoxy, or C1-4 haloalkoxy, wherein the cycloalkyl is further optionally substituted with from 1-2 Rc;
    • heterocyclyl of 4-8 ring atoms, wherein from 1-2 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S(O)0-2, such as:




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and

    • heterocyclyl of 4-8 ring atoms, wherein from 1-2 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S(O)0-2, and wherein the heterocyclyl is substituted with a substituent selected from the group consisting of: C1-4 alkoxy; C1-4 haloalkoxy; C1-4 alkoxy substituted with C1-4 alkoxy or C1-4 haloalkoxy; C1-4 haloalkyl; and C1-6 alkyl substituted from 1-6 independently selected halo, C1-4 alkoxy, or C1-4 haloalkoxy, wherein the heterocyclyl is further optionally substituted with from 1-2 Rc, such as




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In certain embodiments, R8 is C3-8 cycloalkyl such as cyclopropyl, cyclohexyl, cyclobutyl, or cyclopentyl;


In certain embodiments, R8 is C3-8 cycloalkyl substituted with a substituent selected from the group consisting of: C1-4 alkoxy; C1-4 haloalkoxy; C1-4 alkoxy substituted with C1-4 alkoxy or C1-4 haloalkoxy; C1-4 haloalkyl; and C1-6 alkyl substituted from 1-6 independently selected halo, C1-4 alkoxy, or C1-4 haloalkoxy, wherein the cycloalkyl is further optionally substituted with from 1-2 Rc;


In certain embodiments, R8 is heterocyclyl of 4-8 ring atoms, wherein from 1-2 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S(O)0-2, such as:




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In certain embodiments, R8 is heterocyclyl of 4-8 ring atoms, wherein from 1-2 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S(O)0-2, and wherein the heterocyclyl is substituted with a substituent selected from the group consisting of: C1-4 alkoxy; C1-4 haloalkoxy; C1-4 alkoxy substituted with C1-4 alkoxy or C1-4 haloalkoxy; C1-4 haloalkyl; and C1-6 alkyl substituted from 1-6 independently selected halo, C1-4 alkoxy, or C1-4 haloalkoxy, wherein the heterocyclyl is further optionally substituted with from 1-2 Rc, such as




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In certain embodiments, R8 is selected from the group consisting of:

    • heteroaryl of 5-6 ring atoms, wherein from 1-3 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S(O)0-2, and wherein the heteroaryl is optionally substituted with from 1-4 Rc; and
    • C6-10 aryl, such as phenyl, optionally substituted with from 1-4 Rc.


In certain embodiments, a1 is 0; and R8 is selected from the group consisting of:

    • C3-8 cycloalkyl substituted with from 1-2 (such as 2) independently selected halo (such as —F) and further optionally substituted with from 1-2 substituents independently selected from the group consisting of oxo and Rc; and
    • heterocyclyl of 4-8 ring atoms, wherein from 1-2 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S(O)0-2, and wherein the heterocyclyl is substituted with from 1-2 (such as 2) independently selected halo (such as —F) and further optionally substituted with from 1-2 substituents independently selected from the group consisting of oxo and Rc.


As non-limiting examples of the foregoing embodiments, R8 is selected from the group consisting of piperidinyl, pyrrolidinyl, azetidinyl, azaspiro[3.3]heptanyl, cyclobutyl, cyclopentyl, and cyclohexyl, each of which is substituted with 2-F and further optionally substituted with from 1-2 Rc, such as




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As another non-limiting example, R8 can be optionally substituted 3-azabicyclo[3.1.0]hexane, e.g.:




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In certain embodiments, a1 is 0; and R8 is C1-10 alkyl substituted with 1-6 independently selected halo, such as C1, C2, C3, C4, C5, C6, or C7 alkyl substituted with from 1-6 independently selected halo. As non-limiting examples of the foregoing embodiments, R8 can be C1-10 alkyl substituted with 1-6-F, such as C1, C2, C3, C4, C5, C6, or C7 alkyl substituted with from 1-6-F, such as




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In certain embodiments, a1 is 1; LA is —O— or —NH—; and R8 is C1-10 alkyl substituted with 1-6 independently selected halo, such as C1, C2, C3, C4, C5, C6, or C7 alkyl substituted with from 1-6 independently selected halo. In certain of these embodiments, R8 is C1-10 alkyl substituted with 1-6-F, such as C1, C2, C3, C4, C5, C6, or C7 alkyl substituted with from 1-6-F, such as




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In certain embodiments, LA is —O—.


In certain embodiments, a1 is 1; LA is —O—, —NH—, or —CH2—; and R8 is selected from the group consisting of:

    • C3-8 cycloalkyl substituted with from 1-2 (such as 2) independently selected halo (such as —F) and further optionally substituted with from 1-2 substituents independently selected from the group consisting of oxo and Rc; and
    • heterocyclyl of 4-8 ring atoms, wherein from 1-2 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), 0, and S(O)0-2, and wherein the heterocyclyl is substituted with from 1-2 (such as 2) independently selected halo (such as —F) and further optionally substituted with from 1-2 substituents independently selected from the group consisting of oxo and Rc.


In certain of these embodiments, R8 is C3-8 cycloalkyl substituted with from 1-2 (such as 2) independently selected halo (such as —F) and further optionally substituted with from 1-2 substituents independently selected from the group consisting of oxo and Rc, such as cyclobutyl, cyclopentyl, and cyclohexyl, each of which is substituted with 2-F and further optionally substituted with from 1-2 Rc, such as




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In certain of the foregoing embodiments, LA is —O—.


Non-Limiting Combinations

In some embodiments, the compound of Formula (I) is a compound of Formula (Ia-1-1):




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or a pharmaceutically acceptable salt thereof.


In some embodiments of Formula (Ia-1-1), the




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moiety has the formula:




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wherein n7 is 0, 1, or 2; and each Rc7 is an independently selected Rc, such as:




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In some embodiments of Formula (Ia-1-1), the




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moiety has the formula:




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wherein n7 is 0, 1, or 2; and each Rc7 is an independently selected Rc, such as:




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In some embodiments of Formula (Ia-1-1), the




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moiety has the formula:




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wherein n7 is 0, 1, or 2; and each Rc7 is an independently selected Rc, such as:




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In some embodiments, the compound of Formula (I) is a compound of Formula (Ia-1-2):




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or a pharmaceutically acceptable salt thereof.


In some embodiments of Formula (Ia-1-2), the




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moiety has formula:




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wherein n7 is 0, 1, or 2; and each Rc7 is an independently selected Rc, such as:




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In some embodiments of Formula (Ia-1-2), the




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moiety has the formula:




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wherein n7 is 0, 1, or 2; and each Rc7 is an independently selected Rc, such as:




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In certain embodiments of Formulae (Ia-1-1) or (I-a-1-2), R1a and R1d are H; and R1b and R1c are independently selected halo, such as —F or —Cl, such as —F; such as: wherein R1b and R1c are —F; or wherein R1b is —F, and R1c is —Cl; or wherein R1b is —Cl, and R1c is —F.


In certain embodiments of Formulae (Ia-1-1) or (I-a-1-2), R1a and R1d are H; one of R1b and R1c is H; and the other one of R1b and R1c is halo, such as —F or —Cl, such as —F; such as: wherein R1b is H, and R1c is —F; or wherein R1b is H, and R1c is —Cl; or wherein R1b is —F, and R1c is H; or wherein R1b is —Cl, and R1c is H.


In certain embodiments of Formulae (Ia-1-1) or (I-a-1-2), R1a and R1d are H; R1c is halo or H, such as —F, —Cl, or H; and R1b is selected from the group consisting of: heteroaryl of 5 ring atoms, wherein from 1-3 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S, and wherein the heteroaryl is optionally substituted with from 1-4 Rc; and heteroaryl of 5-6 (such as 5) ring atoms, wherein from 1-3 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S, and wherein the heteroaryl is substituted with one occurrence of Rh1 or -(Lg)b-Rh1 and further optionally substituted with from 1-2 Rc, wherein Rh1 is an independently selected Rh.


In certain embodiments of Formulae (Ia-1-1) or (I-a-1-2), R2 is H. In certain embodiments of Formulae (Ia-1-1) or (I-a-1-2), R5 is H. In certain embodiments of Formulae (Ia-1-1) or (I-a-1-2), R6 is H. In certain embodiments of Formulae (Ia-1-1) or (I-a-1-2), R2 is H; R5 is H; and R6 is H.


In certain embodiments of Formulae (Ia-1-1) or (I-a-1-2), R7 is —R8; and R8 is selected from the group consisting of:

    • C3-8 cycloalkyl which is optionally substituted with from 1-4 substituents independently selected from the group consisting of oxo and Rc; and
    • heterocyclyl of 4-8 ring atoms, wherein from 1-2 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S(O)0-2, and wherein the heterocyclyl is optionally substituted with from 1-4 substituents independently selected from the group consisting of oxo and Rc.


In certain embodiments of Formulae (Ia-1-1) or (I-a-1-2), R7 is —R8; and R8 is selected from the group consisting of:

    • C3-8 cycloalkyl substituted with from 1-2 independently selected halo (such as —F) and further optionally substituted with from 1-2 substituents independently selected from the group consisting of oxo and Rc; and
    • heterocyclyl of 4-8 ring atoms, wherein from 1-2 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S(O)0-2, and wherein the heterocyclyl is substituted with from 1-2 independently selected halo (such as —F) and further optionally substituted with from 1-2 substituents independently selected from the group consisting of oxo and Rc, such as:


wherein R8 is selected from the group consisting of piperidinyl, pyrrolidinyl, azetidinyl, azaspiro[3.3]heptanyl, cyclobutyl, cyclopentyl, and cyclohexyl, each of which is substituted with 2-F and further optionally substituted with from 1-2 Rc. As non-limiting examples of the foregoing embodiments, R8 can be




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As another non-limiting example, R8 can be optionally substituted 3-azabicyclo[3.1.0]hexane, e.g.:




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In certain embodiments of Formulae (Ia-1-1) or (I-a-1-2), R7 is —R8; and R8 is C3-8 cycloalkyl substituted with from 1-2 independently selected halo (such as —F) and further optionally substituted with from 1-2 substituents independently selected from the group consisting of oxo and Rc. As non-limiting examples of the foregoing embodiments, R8 can be cyclobutyl, cyclopentyl, or cyclohexyl, each of which is substituted with 2-F and further optionally substituted with from 1-2 Re. For example, R8 can be:




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In certain embodiments of Formulae (Ia-1-1) or (I-a-1-2), R7 is —R8; and R8 is heterocyclyl of 4-8 ring atoms, wherein from 1-2 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S(O)0-2, and wherein the heterocyclyl is substituted with from 1-2 independently selected halo (such as —F) and further optionally substituted with from 1-2 substituents independently selected from the group consisting of oxo and Rc. As non-limiting examples of the foregoing embodiments, R8 can be selected from the group consisting of piperidinyl, pyrrolidinyl, azetidinyl, azaspiro[3.3]heptanyl, cyclobutyl, cyclopentyl, and cyclohexyl, each of which is substituted with 2-F and further optionally substituted with from 1-2 Rc. For example, R8 can be




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As another non-limiting example, R8 can be optionally substituted 3-azabicyclo[3.1.0]hexane, e.g.:




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In certain embodiments of Formulae (Ia-1-1) or (I-a-1-2), R7 is —R8; and R8 is selected from the group consisting of:

    • C3-8 cycloalkyl such as cyclopropyl, cyclohexyl, cyclobutyl, or cyclopentyl;
    • C3-8 cycloalkyl substituted with a substituent selected from the group consisting of: C1-4 alkoxy; C1-4 haloalkoxy; C1-4 alkoxy substituted with C1-4 alkoxy or C1-4 haloalkoxy; C1-4 haloalkyl; and C1-6 alkyl substituted from 1-6 independently selected halo, C1-4 alkoxy, or C1-4 haloalkoxy, wherein the cycloalkyl is further optionally substituted with from 1-2 Rc;
    • heterocyclyl of 4-8 ring atoms, wherein from 1-2 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S(O)0-2, such as:




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and

    • heterocyclyl of 4-8 ring atoms, wherein from 1-2 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S(O)0-2, and wherein the heterocyclyl is substituted with a substituent selected from the group consisting of: C1-4 alkoxy; C1-4 haloalkoxy; C1-4 alkoxy substituted with C1-4 alkoxy or C1-4 haloalkoxy; C1-4 haloalkyl; and C1-6 alkyl substituted from 1-6 independently selected halo, C1-4 alkoxy, or C1-4 haloalkoxy, wherein the heterocyclyl is further optionally substituted with from 1-2 Rc, such as




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In certain embodiments of Formulae (Ia-1-1) or (I-a-1-2), R7 is —R8; and R8 is C3-8 cycloalkyl such as cyclopropyl, cyclohexyl, cyclobutyl, or cyclopentyl.


In certain embodiments of Formulae (Ia-1-1) or (I-a-1-2), R7 is —R8; and R8 is C3-8 cycloalkyl substituted with a substituent selected from the group consisting of: C1-4 alkoxy; C1-4 haloalkoxy; C1-4 alkoxy substituted with C1-4 alkoxy or C1-4 haloalkoxy; C1-4 haloalkyl; and C1-6 alkyl substituted from 1-6 independently selected halo, C1-4 alkoxy, or C1-4 haloalkoxy, wherein the cycloalkyl is further optionally substituted with from 1-2 Rc.


In certain embodiments of Formulae (Ia-1-1) or (I-a-1-2), R7 is —R8; and R8 is heterocyclyl of 4-8 ring atoms, wherein from 1-2 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S(O)0-2, such as:




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In certain embodiments of Formulae (Ia-1-1) or (I-a-1-2), R7 is —R8; and R8 is heterocyclyl of 4-8 ring atoms, wherein from 1-2 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S(O)0-2, and wherein the heterocyclyl is substituted with a substituent selected from the group consisting of: C1-4 alkoxy; C1-4 haloalkoxy; C1-4 alkoxy substituted with C1-4 alkoxy or C1-4 haloalkoxy; C1-4 haloalkyl; and C1-6 alkyl substituted from 1-6 independently selected halo, C1-4 alkoxy, or C1-4 haloalkoxy, wherein the heterocyclyl is further optionally substituted with from 1-2 Rc. As non-limiting examples of the foregoing embodiments, R8 can be




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In certain embodiments of Formulae (Ia-1-1) or (I-a-1-2), R7 is —R8; and R8 is optionally substituted 3-azabicyclo[3.1.0]hexane, e.g.:




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In certain embodiments of Formulae (Ia-1-1) or (I-a-1-2), R7 is —R8; and R8 is selected from the group consisting of C1-10 alkyl substituted with 1-6 Ra1 (such as from 1-6 independently selected halo), such as C1, C2, C3, C4, C5, C6, or C7 alkyl substituted with from 1-6 Ra1 (such as from 1-6 independently selected halo), such as C1-10 alkyl substituted with 1-6-F, such as C1, C2, C3, C4, C5, C6, or C7 alkyl substituted with from 1-6-F, such as




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In certain embodiments of Formulae (Ia-1-1) or (I-a-1-2), R7 is —OR8; and R8 is selected from the group consisting of C1-10 alkyl substituted with 1-6 Ra1 (such as from 1-6 independently selected halo), such as C1, C2, C3, C4, C5, C6, or C7 alkyl substituted with from 1-6 Ra1 (such as from 1-6 independently selected halo), such as C1-10 alkyl substituted with 1-6-F, such as C1, C2, C3, C4, C5, C6, or C7 alkyl substituted with from 1-6-F, such as




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In certain embodiments of Formulae (Ia-1-1) or (I-a-1-2), R7 is —OR8; and R8 is C3-8 cycloalkyl substituted with from 1-2 (such as 2) independently selected halo (such as —F) and further optionally substituted with from 1-2 substituents independently selected from the group consisting of oxo and Rc, such as cyclobutyl, cyclopentyl, and cyclohexyl, each of which is substituted with 2-F and further optionally substituted with from 1-2 Rc, such as




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In certain embodiments of Formulae (Ia-1-1) or (I-a-1-2), each occurrence of R7 is independently selected from the group consisting of halo; cyano; C1-3 alkyl; C1-4 alkoxy; C1-4 haloalkoxy; and C1-3 alkyl substituted with from 1-6 independently selected halo.


In certain of these embodiments, each occurrence of R7 is independently selected from the group consisting of halo, such as —F and —Cl; cyano; C1-3 alkyl, such as methyl; C1-4 alkoxy, such as methoxy; C1-4 haloalkoxy such as —OCF3; and C1-3 alkyl substituted with from 1-6-F, such as —CF3.


In certain embodiments, the compound is a compound of Formula (Ia-1-1) wherein:


P1 and P5 are each independently CH;


P2 and P4 are each independently selected from the group consisting of: N, CH, and CRc;


R1a and R1d are each independently H;


R1b, R1c are each independently selected from: H; and Rc;


R2, R5, R6 are each independently H;


R7 is -(LA)a1-R8, wherein:


LA is —O—, when present;


a1 is 0 or 1;


R8 is independently Rg or C1-10 alkyl optionally substituted with 1-6 Ra1;


wherein each occurrence of Rc is independently selected from the group consisting of: halo; cyano; C1-10 alkyl which is optionally substituted with 1-6 independently selected Ra;


wherein each occurrence of Ra and Ra1 is independently selected from the group consisting of: -halo.


wherein Rg is independently selected from the group consisting of:

    • C3-12 cycloalkyl, optionally substituted with 1-4 substituents independently selected from the group consisting of Rc; and
    • heterocyclyl of 3-12 ring atoms, wherein 1-3 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), O, and wherein the heterocyclyl is optionally substituted with 1-4 substituents independently selected from the group consisting of Rc.


Compound Provisions

In some embodiments of one or more formulae herein, the compound is other than the compounds disclosed in PCT/US2020/013786 (e.g., in Table C1), filed on Jan. 16, 2020, which is incorporated herein by reference in its entirety.


In some embodiments, the compound of Formula (I) is other than a compound selected from the group consisting of compounds 1, 2, 13, 21, 52, 54, 81, 83, 84, 85, 86, 87, 88, 89, 90, 92, 93, 94, 95, 96, 99, 102, 106, 108, 110, 112, 114, 115, 117, 120, 123, 141, 142, 143, 152, and 154 as delineated in Table C1 of PCT/US2020/013786, filed on Jan. 16, 2020, which is incorporated herein by reference in its entirety.


In some embodiments, the compound of Formula (II) is other than a compound selected from the group consisting of compounds 10, 11, 29, and 14 as delineated in Table C1 of PCT/US2020/013786, filed on Jan. 16, 2020, which is incorporated herein by reference in its entirety.


In some embodiments, the compound of Formula (III) is other than a compound selected from the group consisting of compounds 12, 135, and 136 as delineated in Table C1 of PCT/US2020/013786, filed on Jan. 16, 2020, which is incorporated herein by reference in its entirety.


In some embodiments of the compound of Formula (I), it is provided that one or both of (a) and (b) apply:


(a) when Z and Y3 are CH; Y1 and Y2 are CF; and the




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moiety is




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wherein P2 is CH or N, then R7 is other than:




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and


(b) the




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moiety is other than:




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In some embodiments of Formula (I), it is provided that Z and Y3 are CH; Y1 and Y2 are CF; one of P2 and P3 is CR7; and each remaining one of P1, P2, P3, P4, and P5 is other than CR7, then R7 is other than:




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In some embodiments of Formula (I), it is provided that when Z and Y3 are CH; and Y1 and Y2 are CF, then at least one of P1, P2, P3, P4, and P5 is CRc, NR7, NRd, or C(═O).


In some embodiments of Formula (I), it is provided that when Z and Y3 are CH; Y and Y2 are CF; and P3 is CR7, then at least one of P1, P2, P4, and P5 is CRc, NR7, NRd, or C(═O).


In some embodiments of Formula (I), it is provided that the compound is other than a chemical entity disclosed in Chemical Biology and Drug Design, 2015, 86, 731-745, which is incorporated herein by reference.


In some embodiments of Formula (I), it is provided that the six-membered ring including P1, P2, P3, P4, and P5 is other than:




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In some embodiments of the compound of Formula (II), the




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moiety is other than:




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In some embodiments of Formula (II), when the




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and R8 is unsubstituted C2-4 alkyl or CF3, then a1 is 1, 2, or 3.


In some embodiments of Formula (II), it is provided that the ring including P1, P2, P3, P4, and P5 is other than:

    • (i) phenyl, pyridyl, or pyrimidinyl, each substituted with one substituent selected from the group consisting of: OMe; CH2NH2; CH2NHC(O)OMe; CH2NHC(O)OEt; CH2NHC(O)Me; CH2NHC(O)N(Me)2; CH2NHS(O)2Me; methyl; tert-butyl; NHMe; morpholinyl; CH2OH; 1,2,4-triazolyl; or trisubstituted pyrazolyl;
    • (ii) pyrimidinyl substituted with two substituents each independently selected from the group consisting of: methyl, ethyl, and pyrrolidinyl; or




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In some embodiments of the compound of Formula (III), the




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moiety is other than:




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In some embodiments of Formula (III), it is provided that the ring including P1, P2, P3, P4, and P5 is other than:




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    • (ii) phenyl, pyridyl, pyridonyl, or pyridazinonyl substituted with one substituent selected from the group consisting of: OMe; methyl; trifluoromethyl; NHC(O)Me; NMe2; CH2CH2-pyrrolindinyl; or

    • (iii) 3-fluoro-4-methoxyphenyl; 2-fluoro-5-methylphenyl; or dimethoxypyridyl.





In some embodiments of Formula (III), R″ is other than monocyclic heterocyclyl of 5-6 ring atoms, wherein from 1-2 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S(O)0-2, and wherein the heterocyclyl is optionally substituted with from 1-4 substituents independently selected from the group consisting of oxo, Rc, Rh, and -(Lg)bg-Rh; and Non-Limiting Exemplary Compounds


In some embodiments, the compound is selected from the group consisting of the compounds delineated in Table C1 or a pharmaceutically acceptable salt thereof.










TABLE C1





#
Structure







101


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5-chloro-N-(5,6-difluoro-1H-



indol-3-yl)-6-(6,6-difluoro-2-



azaspiro[3.3]heptan-2-



yl)nicotinamide





102


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5-chloro-6-(4,4-difluoropiperidin-1-



yl)-N-(5-(1-isopropyl-1H-pyrazol-4-



yl)-1H-indol-3-yl)nicotinamide





103


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N-(5,6-difluoro-1H-indol-3-yl)-



6-((3-methoxypropyl)amino)-5-



methylnicotinamide





104


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N-(6-cyano-1H-indol-3-yl)-3-fluoro-



4-(4,4,4-trifluorobutoxy)benzamide





105


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N-(5,6-difluoro-1H-indol-3-yl)-



6-oxo-5-(4-



(trifluoromethyl)benzyl)-1,6-



dihydropyridazine-3-



carboxamide





106


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N-(5,6-difluoro-1H-indol-3-yl)-2-



(difluoromethoxy)isonicotinamide





107


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5-cyano-N-(5,6-difluoro-1H-



indol-3-yl)-6-(4,4-



difluoropiperidin-1-



yl)nicotinamide





108


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N-(5,6-difluoro-1H-indol-3-yl)-4-



(3,3-difluorocyclobutyl)benzamide





109


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N-(5,6-difluoro-1H-indol-3-yl)-



4-(3,3-



difluorocyclobutoxy)benzamide





110


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N-(5,6-difluoro-1H-indol-3-yl)-4-(2-



(trifluoromethoxy)ethyl)benzamide





111


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3-fluoro-N-(7-fluoro-1H-



pyrrolo[3,2-c]pyridin-3-yl)-4-



(4,4,4-



trifluorobutoxy)benzamide





112


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N-(5,6-difluoro-1H-indol-3-yl)-3-



methoxy-4-



(trifluoromethyl)benzamide





113


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N-(5,6-difluoro-1H-indol-3-yl)-



2-isopropoxyisonicotinamide





114


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3-chloro-N-(5,6-difluoro-1H-indol-3-



yl)-4-(trifluoromethoxy)benzamide





115


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N-(5,6-difluoro-1H-indol-3-yl)-



3,5-difluoro-4-(2,2,2-



trifluoroethoxy)benzamide





116


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N-(5,6-difluoro-1H-indol-3-yl)-4-



(difluoromethoxy)benzamide





117


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N-(5,6-difluoro-1H-indol-3-yl)-



3-(1,1,2,2-



tetrafluoroethoxy)benzamide





118


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N-(5,6-difluoro-1H-indol-3-yl)-4-



(pyridin-3-yloxy)benzamide





119


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N-(5,6-difluoro-1H-indol-3-yl)-



3-methyl-5-



(trifluoromethoxy)benzamide





120


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3-cyano-N-(5,6-difluoro-1H-indol-3-



yl)-4-isopropoxybenzamide





121


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N-(5,6-difluoro-1H-indol-3-yl)-



3-(difluoromethoxy)benzamide





122


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2-chloro-N-(5,6-difluoro-1H-indol-3-



yl)-4-(2,2,2-



trifluoroethoxy)benzamide





123


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pyridin-3-ylmethyl (4-((5,6-



difluoro-1H-indol-3-



yl)carbamoyl)benzyl)carbamate





124


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N-(5,6-difluoro-1H-indol-3-yl)-6-



((tetahydro-2H-pyran-4-



yl)oxy)picolinamide





125


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N-(5,6-difluoro-1H-indol-3-yl)-



3-(trifluoromethoxy)benzamide





126


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N-(5,6-difluoro-1H-indol-3-yl)-4-



isopropoxy-3-



(trifluoromethyl)benzamide





127


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3-(cyclopropylmethoxy)-N-



(5,6-difluoro-1H-indol-3-yl)-4-



(difluoromethoxy)benzamide





128


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N-(5,6-difluoro-1H-indol-3-yl)-4-



isopropoxybenzamide





129


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N-(5,6-difluoro-1H-indol-3-yl)-



4-(2-(piperidin-1-



yl)ethoxy)benzamide





130


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4-(cyclopropylmethoxy)-N-(5,6-



difluoro-1H-indol-3-yl)benzamide





131


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3-(benzyloxy)-N-(5,6-difluoro-



1H-indol-3-yl)benzamide





132


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4-butoxy-N-(5,6-difluoro-1H-indol-



3-yl)benzamide





133


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N-(5,6-difluoro-1H-indol-3-yl)-



4-((5-(trifluoromethyl)pyridin-



2-yl)oxy)benzamide





134


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N-(5,6-difluoro-1H-indol-3-yl)-3-



fluoro-4-(2,2,2-



trifluoroethoxy)benzamide





135


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N-(5,6-difluoro-1H-indol-3-yl)-



4-(trifluoromethoxy)benzamide





136


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4-(benzyloxy)-N-(5,6-difluoro-1H-



indol-3-yl)benzamide





137


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5-chloro-N-(5,6-difluoro-1H-



indol-3-yl)-6-(3,3-



difluoroazetidin-1-



yl)nicotinamide





138


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N-(5,6-difluoro-1H-indol-3-yl)-6-



(4,4,4-trifluorobutoxy)nicotinamide





139


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N-(5,6-difluoro-1H-indol-3-yl)-



5-(4,4,4-



trifluorobutoxy)picolinamide





140


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N-(5,6-difluoro-1H-indol-3-yl)-5-



fluoro-6-(3,3,3-



trifluoropropoxy)nicotinamide





141


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N-(5,6-difluoro-1H-indol-3-yl)-



4-(3,3,3-



trifluoropropoxy)benzamide





142


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N-(5,6-difluoro-1H-indol-3-yl)-3-



fluoro-4-(4,4,4-



trifluorobutoxy)benzamide





143


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3-fluoro-N-(5-methoxy-1H-



pyrrolo[3,2-b]pyridin-3-yl)-4-



(4,4,4-



trifluorobutoxy)benzamide





144


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3-fluoro-N-(5-fluoro-1H-pyrrolo[2,3-



b]pyridin-3-yl)-4-(4,4,4-



trifluorobutoxy)benzamide





145


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N-(5-cyano-1H-indol-3-yl)-3-



fluoro-4-(4,4,4-



trifluorobutoxy)benzamide





146


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3-fluoro-N-(5-fluoro-1H-indol-3-yl)-



4-(4,4,4-trifluorobutoxy)benzamide





147


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N-(5,6-difluoro-1H-indol-3-yl)-



4-ethoxybenzamide





148


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N-(5,6-difluoro-1H-indol-3-yl)-5-



(4,4,4-trifluorobutoxy)pyrazine-2-



carboxamide





149


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N-(5,6-difluoro-1H-indol-3-yl)-



4-(3,3-difluorocyclobutoxy)-3-



fluorobenzamide





150


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3-cyano-N-(5,6-difluoro-1H-indol-3-



yl)-4-(4,4,4-



trifluorobutoxy)benzamide





151


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3-chloro-N-(5,6-difluoro-1H-



indol-3-yl)-4-(4,4,4-



trifluorobutoxy)benzamide





152


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N-(5,6-difluoro-1H-indol-3-yl)-4-



(2,2,2-trifluoroethoxy)benzamide





153


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N-(5-chloro-1H-indol-3-yl)-3-



fluoro-4-(4,4,4-



trifluorobutoxy)benzamide





154


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N-(5,6-difluoro-1H-indol-3-yl)-6-



(4,4-difluoropiperidin-1-yl)-5-



fluoronicotinamide





155


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N-(5,6-difluoro-1H-indol-3-yl)-



3-methyl-4-(4,4,4-



trifluorobutoxy)benzamide





156


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5-chloro-N-(5,6-difluoro-1H-indol-3-



yl)-6-(4,4-difluoropiperidin-1-



yl)nicotinamide





157


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N-(5,6-difluoro-1H-indol-3-yl)-



6-(2-



methoxyethoxy)nicotinamide





158


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N-(5,6-difluoro-1H-indol-3-yl)-4-



(4,4-difluorocyclohexyl)benzamide





159


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N-(5,6-difluoro-1H-indol-3-yl)-



6-(4,4-difluoropiperidin-1-



yl)nicotinamide





160


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N-(5,6-difluoro-1H-indol-3-yl)-3-



fluoro-4-(3,3,3-



trifluoropropoxy)benzamide





161


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N-(5,6-difluoro-1H-indol-3-yl)-



3-fluoro-4-(3,3,3-



trifluoropropoxy)benzamide





162


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N-(5-(1-(4-(methoxymethyl)phenyl)-



1H-pyrazol-4-yl)-1H-indol-3-yl)-4-



(4,4,4-trifluorobutoxy)benzamide





163


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5-chloro-N-(5,6-difluoro-1H-



indol-3-yl)-6-(4-(2-



methoxyethyl)piperidin-1-



yl)nicotinamide





164


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N-(5,6-difluoro-1H-indol-3-yl)-2-



((4,4,4-



trifluorobutyl)amino)pyrimidine-4-



carboxamide





165


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N-(5,6-difluoro-1H-indol-3-yl)-



4-(3,3-difluorocyclobutoxy)-3-



methylbenzamide





166


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3-chloro-N-(5,6-difluoro-1H-indol-3-



yl)-4-(4,4-



difluorocyclohexyl)benzamide





168


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4-(cyclopentyloxy)-N-(5,6-difluoro-



1H-indol-3-yl)benzamide





169


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N-(5,6-difluoro-1H-indol-3-yl)-



3-((4,4,4-



trifluorobutyl)amino)benzamide





170


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4-chloro-N-(5,6-difluoro-1H-indol-3-



yl)-3-(4,4,4-



trifluorobutoxy)benzamide





171


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N-(5,6-difluoro-1H-indol-3-yl)-



3-(4,4,4-



trifluorobutoxy)benzamide





172


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N-(5,6-difluoro-1H-indol-3-yl)-4-



methyl-3-(4,4,4-



trifluorobutoxy)benzamide





173


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N-(5,6-difluoro-1H-indol-3-yl)-



6-methyl-5-(2,2,2-



trifluoroethoxy)pyrazine-2-



carboxamide





174


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N-(5,6-difluoro-1H-indol-3-yl)-4-



(2,2-difluoroethoxy)benzamide





175


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N-(5,6-difluoro-1H-indol-3-yl)-



2-(4,4-difluoropiperidin-1-yl)-



6-methylisonicotinamide





176


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N-(5,6-difluoro-1H-indol-3-yl)-3-



fluoro-4-(3,3,3-



trifluoropropyl)benzamide





179


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3-(cyclohexyloxy)-N-(5,6-



difluoro-1H-indol-3-



yl)benzamide





180


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N-(5-(1-isopropyl-1H-pyrazol-4-yl)-



1H-indol-3-yl)-4-(4,4,4-



trifluorobutoxy)benzamide





181


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N-(5,6-difluoro-1H-indol-3-yl)-



4-((3,3-difluoroazetidin-1-



yl)methyl)-3-fluorobenzamide





182


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N-(5,6-difluoro-1H-indol-3-yl)-5-(4-



(trifluoromethoxy)piperidin-1-



yl)pyrazine-2-carboxamide





183


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N-(5,6-difluoro-1H-indol-3-yl)-



6-(3-methoxy-3-methylazetidin-



1-yl)-5-methylnicotinamide





184


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(R)-N-(5,6-difluoro-1H-indol-3-yl)-



6-(3-(2-methoxyethoxy)pyrrolidin-1-



yl)-5-methylnicotinamide





185


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(R)-N-(5,6-difluoro-1H-indol-3-



yl)-3-fluoro-4-(3-(2-



methoxyethoxy)pyrrolidin-1-



yl)benzamide





186


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2-cyclohexyl-N-(5,6-difluoro-1H-



indol-3-yl)-6-methylisonicotinamide





187


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4-(4,4-difluoro-1-



hydroxycyclohexyl)-N-(5,6-



difluoro-1H-indol-3-



yl)benzamide





188


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3-cyano-N-(5,6-difluoro-1H-indol-3-



yl)-4-(4,4-difluoropiperidin-1-



yl)benzamide





189


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5-chloro-N-(5,6-difluoro-1H-



indol-3-yl)-6-(3-



(trifluoromethyl)pyrrolidin-1-



yl)nicotinamide





190


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5-chloro-6-(4,4-difluoropiperidin-1-



yl)-N-(6-fluoro-1H-indol-3-



yl)nicotinamide





191


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N-(5,6-difluoro-1H-indol-3-yl)-



5-methyl-6-((4,4,4-



trifluorobutyl)amino)nicotinamide





192


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3-fluoro-N-(6-fluoro-1H-indol-3-yl)-



4-(4,4,4-trifluorobutoxy)benzamide





193


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N-(5,6-difluoro-1H-indol-3-yl)-



2-oxo-1-(4-



(trifluoromethyl)benzyl)-1,2-



dihydropyrimidine-4-



carboxamide





194


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N-(5,6-difluoro-1H-indol-3-yl)-3-(2-



methoxyethoxy)benzamide





195


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3-chloro-4-



(cyclopropylmethoxy)-N-(5,6-



difluoro-1H-indol-3-



yl)benzamide





196


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4-(cyclohexyloxy)-N-(5,6-difluoro-



1H-indol-3-yl)benzamide





197


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N-(5,6-difluoro-1H-indol-3-yl)-



6-



(trifluoromethoxy)nicotinamide





198


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N-(5,6-difluoro-1H-indol-3-yl)-3-



ethoxy-2,4-difluorobenzamide





199


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N-(5,6-difluoro-1H-indol-3-yl)-



4-ethoxy-5,6-



difluorobenzamide





200


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N-(5-(1-(3-(methoxymethyl)phenyl)-



1H-pyrazol-4-yl)-1H-indol-3-yl)-4-



(4,4,4-trifluorobutoxy)benzamide





201


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N-(5-(1-(3-cyclopropylphenyl)-



1H-pyrazol-4-yl)-1H-indol-3-



yl)-4-(4,4,4-



trifluorobutoxy)benzamide





202


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N-(5,6-difluoro-1H-indol-3-yl)-6-



((4,4,4-



trifluorobutyl)amino)picolinamide





203


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N-(5,6-difluoro-1H-indol-3-yl)-



2-((4,4,4-



trifluorobutyl)amino)isonicotinamide





204


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N-(7-fluoro-5-(1-isopropyl-1H-



pyrazol-4-yl)-1H-indol-3-yl)-4-



(4,4,4-trifluorobutoxy)benzamide





205


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N-(5-cyano-7-fluoro-1H-indol-



3-yl)-4-(4,4,4-



trifluorobutoxy)benzamide





206


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(R)-N-(5,6-difluoro-1H-indol-3-yl)-



3-methyl-4-(3-(2-



(trifluoromethoxy)ethoxy)pyrrolidin-



1-yl)benzamide





207


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N-(5,6-difluoro-1H-indol-3-yl)-



5-methyl-6-(6-oxa-2-



azaspiro[3.4]octan-2-



yl)nicotinamide





208


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N-(5,6-difluoro-1H-indol-3-yl)-5-



(3,3-difluorocyclobutoxy)-6-



methylpyrazine-1-carboxamide





209


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5-chloro-N-(5,6-difluoro-1H-



indol-3-yl)-6-((5-hydroxy-4,4-



dimethylpentyl)amino)nicotinamide





210


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N-(5,6-difluoro-1H-indol-3-yl)-4-



(4,4-difluorocyclohexyl)-3,5-



dimethylbenzamide





211


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N-(5,6-difluoro-1H-indol-3-yl)-



4-(4,4-difluoropiperidin-1-yl)-



3,5-dimethylbenzamide





212


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N-(5,6-difluoro-1H-indol-3-yl)-5-



(4,4-difluoropiperidin-1-yl)-6-



methylnicotinamide





213


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4-(1-cyano-4,4-



difluorocyclohexyl)-N-(5,6-



difluoro-1H-indol-3-



yl)benzamide





214


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N-(5,6-difluoro-1H-indol-3-yl)-6-((2-



methoxyethyl)amino)-5-



methylnicotinamide





215


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N-(5,6-difluoro-1H-indol-3-yl)-



5-methyl-6-((4,4,4-



trifluorobutyl)amino)nicotinamide





216


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N-(5,6-difluoro-1H-indol-3-yl)-6-



(3,3-difluorocyclobutyl)nicotinamide





217


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N-(5,6-difluoro-1H-indol-3-yl)-



1-(4,4-difluorocyclohexyl)-2-



oxo-1,2-dihydropyrimidine-4-



carboxamide





218


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N-(5,6-difluoro-1H-indol-3-yl)-6-(4-



methyl-1-(2,2,2-



trifluoroethyl)piperidin-4-



yl)nicotinamide





219


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N-(5,6-difluoro-1H-indol-3-yl)-



6-(1,1-difluoro-6-



azaspiro[2.5]octan-6-yl)-5-



fluoronicotinamide





220


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6-(4,4-difluoro-1-methylcyclohexyl)-



N-(5,6-difluoro-1H-indol-3-yl)-5-



fluoronicotinamide





221


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N-(5,6-difluoro-1H-indol-3-yl)-



5-fluoro-6-(6-(2,2,2-



trifluoroethoxy)-2-



azaspiro[3.3]heptan-2-



yl)nicotinamide





222


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N-(5,6-difluoro-1H-indol-3-yl)-5-



fluoro-6-(6-(2,2,2-



trifluoroethoxy)spiro[3.3]heptan-2-



yl)nicotinamide





223


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N-(5,6-difluoro-1H-indol-3-yl)-



5-fluoro-6-((1R,5S,6r)-6-



((2,2,2-trifluoroethoxy)methyl)-



3-azabicyclo[3.1.0]hexan-3-



yl)nicotinamide





224


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N-(5-chloro-1H-indol-3-yl)-5-fluoro-



6-((1R,5S,6r)-6-((2,2,2-



trifluoroethoxy)methyl)-3-



azabicyclo[3.1.0]hexan-3-



yl)nicotinamide





225


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N-(5-chloro-1H-indol-3-yl)-3-



fluoro-4-((1R,5S,6r)-6-((2,2,2-



trifluoroethoxy)methyl)-3-



azabicyclo[3.1.0]hexan-3-



yl)benzamide





226


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N-(5,6-difluoro-1H-indol-3-yl)-6-(2-



methoxyethoxy)-5-



methylnicotinamide





227


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N-(5,6-difluoro-1H-indol-3-yl)-



3-fluoro-4-((1R,5S,6r)-6-



((2,2,2-tifluoroethoxy)methyl)-



3-azabicyclo[3.1.0]hexan-3-



yl)benzamide





228


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N-(5,6-difluoro-1H-indol-3-yl)-6-(2-



hydroxybutyl)nicotinamide





229


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N-(5-chloro-1H-indol-3-yl)-4-



((1-(2,2,2-



trifluoroethyl)piperidin-4-



yl)methyl)benzamide





230


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N-(5-chloro-1H-indol-3-yl)-4-((1-



(2,2,2-trifluoroethyl)piperidin-4-



yl)oxy)benzamide





231


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N-(5,6-difluoro-1H-indol-3-yl)-



6-(2-ethoxyethoxy)-4-



methylnicotinamide





232


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N-(5,6-difluoro-1H-indol-3-yl)-3-(2-



methoxyethoxy)-4-



(trifluoromethyl)benzamide





233


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N-(5,6-difluoro-1H-indol-3-yl)-



4-((3,3-



difluorocyclobutyl)(hydroxy)



methyl)benzamide





234


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3-(5-cyclopropyl-1,2,4-oxadiazol-3-



yl)-N-(5,6-difluoro-1H-indol-3-



yl)benzamide





235


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N-(5,6-difluoro-1H-indol-3-yl)-



2-(2,2,2-trifluoro-1-



hydroxyethyl)isonicotinamide





236


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N-(5,6-difluoro-1H-indol-3-yl)-3-((2-



methoxyethyl)amino)-4-



(trifluoromethyl)benzamide





237


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N-(5,6-difluoro-1H-indol-3-yl)-



4-((6,6-difluoro-2-



azaspiro[3.3]heptan-2-



yl)methyl)-3-fluorobenzamide





238


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N-(5,6-difluoro-1H-indol-3-yl)-2-((2-



methoxyethyl)amino)isonicotinamide





239


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5-chloro-N-(5,6-difluoro-1H-



indol-3-yl)-6-((3,3,3-



trifluoropropyl)amino)nicotinamide





240


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5-chloro-N-(5,6-difluoro-1H-indol-3-



yl)-6-(3,3-



difluorocyclobutyl)nicotinamide





241


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N-(5,6-difluoro-1H-indol-3-yl)-



2-(1-



hydroxypropyl)isonicotinamide





242


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N-(5,6-difluoro-1H-indol-3-yl)-5-



fluoro-6-((3,3,3-



trifluoropropyl)amino)nicotinamide





243


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N-(5,6-difluoro-1H-indol-3-yl)-



6-methyl-5-((4,4,4-



trifluorobutyl)amino)nicotinamide





244


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(S)-N-(5,6-difluoro-1H-indol-3-yl)-4-



(1-(3,3-difluoroazetidin-1-yl)ethyl)-



3-fluorobenzamide





245


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(R)-N-(5,6-difluoro-1H-indol-3-



yl)-4-(1-(3,3-difluoroazetidin-1-



yl)ethyl)-3-fluorobenzamide





246


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N-(5,6-difluoro-1H-indol-3-yl)-6-((1-



(2,2,2-trifluoroethyl)azetidin-3-



yl)oxy)nicotinamide





247


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N-(5,6-difluoro-1H-indol-3-yl)-



2-((3,3-



difluorocyclobutyl)amino)isonicotinamide





248


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N-(5,6-difluoro-1H-indol-3-yl)-4-(4-



hydroxytetrahydro-2H-pyran-4-



yl)benzamide





249


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tert-butyl 4-(4-((5,6-difluoro-



1H-indol-3-



yl)carbamoyl)phenoxy)piperidine-1-



carboxylate





250


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6-(4,4-difluoro-1-



hydroxycyclohexyl)-N-(5,6-difluoro-



1H-indol-3-yl)nicotinamide





251


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3-(4,4-difluoro-1-



hydroxycyclohexyl)-N-(5,6-



difluoro-1H-indol-3-



yl)benzamide





252


embedded image








3-chloro-N-(5,6-difluoro-1H-indol-3-



yl)-2-(3,3-difluoroazetidin-1-



yl)isonicotinamide





253


embedded image








N-(5,6-difluoro-1H-indol-3-yl)-



2-(3,3-difluoroazetidin-1-yl)-3-



methylisonicotinamide





254


embedded image








5-chloro-N-(5,6-difluoro-1H-indol-3-



yl)-6-((4,4-difluoropiperidin-1-



yl)methyl)nicotinamide





255


embedded image








5-chloro-N-(5,6-difluoro-1H-



indol-3-yl)-6-((3,3-



difluoroazetidin-1-



yl)methyl)nicotinamide





256


embedded image








N-(5,6-difluoro-1H-indol-3-yl)-5-



(4,4-difluoropiperidin-1-yl)-6-



methylnicotinamide





257


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N-(5,6-difluoro-1H-indol-3-yl)-



2-((3,3-difluoroazetidin-1-



yl)methyl)isonicotinamide





258


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4-(4,4-difluoro-1-



hydroxycyclohexyl)-N-(5,6-difluoro-



1H-indol-3-yl)-3-fluorobenzamide





259


embedded image








N-(5-chloro-6-fluoro-1H-indol-



3-yl)-4-(4,4-difluoro-1-



hydroxycyclohexyl)benzamide





260


embedded image








N-(5,6-difluoro-1H-indol-3-yl)-3-



fluoro-4-((3-fluoroazetidin-1-



yl)methyl)benzamide





261


embedded image








N-(5,6-difluoro-1H-indol-3-yl)-



2-ethyl-2,3-dihydro-1H-indene-



5-carboxamide





262


embedded image








N-(5,6-difluoro-1H-indol-3-yl)-3-



fluoro-4-(2-



(trifluoromethoxy)ethoxy)benzamide





263


embedded image








N-(5,6-difluoro-1H-indol-3-yl)-



2-phenoxyisonicotinamide





264


embedded image








N-(5,6-difluoro-1H-indol-3-yl)-6-



methoxy-5-



(trifluoromethyl)nicotinamide





265


embedded image








N-(5,6-difluoro-1H-indol-3-yl)-



6-isopropoxynicotinamide





266


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4-(5-cyclopropyl-1,2,4-oxadiazol-3-



yl)-N-(5,6-difluoro-1H-indol-3-



yl)benzamide





267


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N-(5,6-difluoro-1H-indol-3-yl)-



4-(5-isopropyl-1,2,4-oxadiazol-



3-yl)benzamide





268


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N-(5,6-difluoro-1H-indol-3-yl)-4-



(1,1,2,2-tetrafluoroethoxy)benzamide





269


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N-(5,6-difluoro-1H-indol-3-yl)-



4-(oxetan-3-yloxy)benzamide





270


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N-(5,6-difluoro-1H-indol-3-yl)-5-



(difluoromethoxy)picolinamide





271


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N-(5-chloro-1H-indol-3-yl)-5-



cyano-6-(3,3-difluoroazetidin-



1-yl)nicotinamide





272


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N-(5-chloro-1H-indol-3-yl)-6-(3,3-



difluoroazetidin-1-yl)-4-



methylnicotinamide





273


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N-(5,6-difluoro-1H-indol-3-yl)-



6-((3,3-difluoroazetidin-1-



yl)methyl)nicotinamide





274


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N-(5,6-difluoro-1H-indol-3-yl)-3-(5-



methyl-1,2,4-oxadiazol-3-



yl)benzamide





275


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N-(5,6-difluoro-1H-indol-3-yl)-



3-(1-hydroxyethyl)-5-



(trifluoromethyl)benzamide





276


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N-(5,6-difluoro-1H-indol-3-yl)-3-(1-



hydroxyethyl)-4-



(trifluoromethyl)benzamide





277


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N-(5,6-difluoro-1H-indol-3-yl)-



6-((4,4,4-



trifluorobutyl)amino)picolinamide





278


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N-(5,6-difluoro-1H-indol-3-yl)-4-



(4,4-difluorocyclohexyl)-3,5-



dimethylbenzamide





279


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N-(5,6-difluoro-1H-indol-3-yl)-



3-(2-hydroxyethyl)-5-



(trifluoromethyl)benzamide





280


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N-(5,6-difluoro-1H-indol-3-yl)-3-(2-



hydroxyethyl)-4-



(trifluoromethyl)benzamide





209


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5-chloro-N-(5,6-difluoro-1H-



indol-3-yl)-6-((5-hydroxy-4,4-



dimethylpentyl)amino)nicotinamide





201


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N-(5-(1-(3-cyclopropylphenyl)-1H-



pyrazol-4-yl)-1H-indol-3-yl)-4-



(4,4,4-trifluorobutoxy)benzamide





213


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4-(1-cyano-4,4-



difluorocyclohexyl)-N-(5,6-



difluoro-1H-indol-3-



yl)benzamide





216


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N-(5,6-difluoro-1H-indol-3-yl)-6-



(3,3-difluorocyclobutyl)nicotinamide





200


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N-(5-(1-(3-



(methoxymethyl)phenyl)-1H-



pyrazol-4-yl)-1H-indol-3-yl)-4-



(4,4,4-



trifluorobutoxy)benzamide





204


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N-(7-fluoro-5-(1-isopropyl-1H-



pyrazol-4-yl)-1H-indol-3-yl)-4-



(4,4,4-trifluorobutoxy)benzamide





203


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N-(5,6-difluoro-1H-indol-3-yl)-



2-((4,4,4-



trifluorobutyl)amino)isonicotinamide





208


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N-(5,6-difluoro-1H-indol-3-yl)-5-



(3,3-difluorocyclobutoxy)-6-



methylpyrazine-2-carboxamide





207


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N-(5,6-difluoro-1H-indol-3-yl)-



5-methyl-6-(6-oxa-2-



azaspiro[3.4]octan-2-



yl)nicotinamide





162


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N-(5-(1-(4-(methoxymethyl)phenyl)-



1H-pyrazol-4-yl)-1H-indol-3-yl)-4-



(4,4,4-trifluorobutoxy)benzamide





163


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5-chloro-N-(5,6-difluoro-1H-



indol-3-yl)-6-(4-(2-



methoxyethyl)piperidin-1-



yl)nicotinamide





164


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N-(5,6-difluoro-1H-indol-3-yl)-2-



((4,4,4-



trifluorobutyl)amino)pyrimidine-4-



carboxamide





165


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N-(5,6-difluoro-1H-indol-3-yl)-



4-(3,3-difluorocyclobutoxy)-3-



methylbenzamide





166


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3-chloro-N-(5,6-difluoro-1H-indol-3-



yl)-4-(4,4-



difluorocyclohexyl)benzamide





168


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4-(cyclopentyloxy)-N-(5,6-



difluoro-1H-indol-3-



yl)benzamide





169


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N-(5,6-difluoro-1H-indol-3-yl)-3-



((4,4,4-



trifluorobutyl)amino)benzamide





170


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4-chloro-N-(5,6-difluoro-1H-



indol-3-yl)-3-(4,4,4-



trifluorobutoxy)benzamide





171


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N-(5,6-difluoro-1H-indol-3-yl)-3-



(4,4,4-trifluorobutoxy)benzamide





172


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N-(5,6-difluoro-1H-indol-3-yl)-



4-methyl-3-(4,4,4-



trifluorobutoxy)benzamide





173


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N-(5,6-difluoro-1H-indol-3-yl)-6-



methyl-5-(2,2,2-



trifluoroethoxy)pyrazine-2-



carboxamide





174


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N-(5,6-difluoro-1H-indol-3-yl)-



4-(2,2-



difluoroethoxy)benzamide





175


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N-(5,6-difluoro-1H-indol-3-yl)-2-



(4,4-difluoropiperidin-1-yl)-6-



methylisonicotinamide





176


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N-(5,6-difluoro-1H-indol-3-yl)-



3-fluoro-4-(3,3,3-



trifluoropropyl)benzamide





179


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3-(cyclohexyloxy)-N-(5,6-difluoro-



1H-indol-3-yl)benzamide





180


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N-(5-(1-isopropyl-1H-pyrazol-



4-yl)-1H-indol-3-yl)-4-(4,4,4-



trifluorobutoxy)benzamide





181


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N-(5,6-difluoro-1H-indol-3-yl)-4-



((3,3-difluoroazetidin-1-yl)methyl)-



3-fluorobenzamide





182


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N-(5,6-difluoro-1H-indol-3-yl)-



5-(4-



(trifluoromethoxy)piperidin-1-



yl)pyrazine-2-carboxamide





183


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N-(5,6-difluoro-1H-indol-3-yl)-6-(3-



methoxy-3-methylazetidin-1-yl)-5-



methylnicotinamide





184


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(R)-N-(5,6-difluoro-1H-indol-3-



yl)-6-(3-(2-



methoxyethoxy)pyrrolidin-1-



yl)-5-methylnicotinamide





185


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(R)-N-(5,6-difluoro-1H-indol-3-yl)-



3-fluoro-4-(3-(2-



methoxyethoxy)pyrrolidin-1-



yl)benzamide





186


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2-cyclohexyl-N-(5,6-difluoro-



1H-indol-3-yl)-6-



methylisonicotinamide





187


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4-(4,4-difluoro-1-



hydroxycyclohexyl)-N-(5,6-difluoro-



1H-indol-3-yl)benzamide





188


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3-cyano-N-(5,6-difluoro-1H-



indol-3-yl)-4-(4,4-



difluoropiperidin-1-



yl)benzamide





189


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5-chloro-N-(5,6-difluoro-1H-indol-3-



yl)-6-(3-(trifluoromethyl)pyrrolidin-



1-yl)nicotinamide





190


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5-chloro-6-(4,4-



difluoropiperidin-1-yl)-N-(6-



fluoro-1H-indol-3-



yl)nicotinamide





191


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N-(5,6-difluoro-1H-indol-3-yl)-5-



methyl-6-((4,4,4-



trifluorobutyl)amino)nicotinamide





192


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3-fluoro-N-(6-fluoro-1H-indol-



3-yl)-4-(4,4,4-



trifluorobutoxy)benzamide





194


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N-(5,6-difluoro-1H-indol-3-yl)-3-(2-



methoxyethoxy)benzamide





195


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3-chloro-4-



(cyclopropylmethoxy)-N-(5,6-



difluoro-1H-indol-3-



yl)benzamide





196


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4-(cyclohexyloxy)-N-(5,6-difluoro-



1H-indol-3-yl)benzamide





197


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N-(5,6-difluoro-1H-indol-3-yl)-



6-



(trifluoromethoxy)nicotinamide





198


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N-(5,6-difluoro-1H-indol-3-yl)-3-



ethoxy-2,4-difluorobenzamide





199


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N-(5,6-difluoro-1H-indol-3-yl)-



4-ethoxy-2,6-



difluorobenzamide





101


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5-chloro-N-(5,6-difluoro-1H-indol-3-



yl)-6-(6,6-difluoro-2-



azaspiro[3.3]heptan-2-



yl)nicotinamide









Pharmaceutical Compositions and Administration


General


In some embodiments, a chemical entity (e.g., a compound that inhibits (e.g., antagonizes) STING, or a pharmaceutically acceptable salt, and/or hydrate, and/or cocrystal, and/or drug combination thereof) is administered as a pharmaceutical composition that includes the chemical entity and one or more pharmaceutically acceptable excipients, and optionally one or more additional therapeutic agents as described herein.


In some embodiments, the chemical entities can be administered in combination with one or more conventional pharmaceutical excipients. Pharmaceutically acceptable excipients include, but are not limited to, ion exchangers, alumina, aluminum stearate, lecithin, self-emulsifying drug delivery systems (SEDDS) such as d-α-tocopherol polyethylene glycol 1000 succinate, surfactants used in pharmaceutical dosage forms such as Tweens, poloxamers or other similar polymeric delivery matrices, serum proteins, such as human serum albumin, buffer substances such as phosphates, tris, glycine, sorbic acid, potassium sorbate, partial glyceride mixtures of saturated vegetable fatty acids, water, salts or electrolytes, such as protamine sulfate, disodium hydrogen phosphate, potassium hydrogen phosphate, sodium-chloride, zinc salts, colloidal silica, magnesium trisilicate, polyvinyl pyrrolidone, cellulose-based substances, polyethylene glycol, sodium carboxymethyl cellulose, polyacrylates, waxes, polyethylene-polyoxypropylene-block polymers, and wool fat. Cyclodextrins such as α-, β, and γ-cyclodextrin, or chemically modified derivatives such as hydroxyalkylcyclodextrins, including 2- and 3-hydroxypropyl-β-cyclodextrins, or other solubilized derivatives can also be used to enhance delivery of compounds described herein. Dosage forms or compositions containing a chemical entity as described herein in the range of 0.005% to 100% with the balance made up from non-toxic excipient may be prepared. The contemplated compositions may contain 0.001%-100% of a chemical entity provided herein, in one embodiment 0.1-95%, in another embodiment 75-85%, in a further embodiment 20-80%. Actual methods of preparing such dosage forms are known, or will be apparent, to those skilled in this art; for example, see Remington: The Science and Practice of Pharmacy, 22nd Edition (Pharmaceutical Press, London, U K. 2012).


Routes of Administration and Composition Components


In some embodiments, the chemical entities described herein or a pharmaceutical composition thereof can be administered to subject in need thereof by any accepted route of administration. Acceptable routes of administration include, but are not limited to, buccal, cutaneous, endocervical, endosinusial, endotracheal, enteral, epidural, interstitial, intra-abdominal, intra-arterial, intrabronchial, intrabursal, intracerebral, intracisternal, intracoronary, intradermal, intraductal, intraduodenal, intradural, intraepidermal, intraesophageal, intragastric, intragingival, intraileal, intralymphatic, intramedullary, intrameningeal, intramuscular, intraovarian, intraperitoneal, intraprostatic, intrapulmonary, intrasinal, intraspinal, intrasynovial, intratesticular, intrathecal, intratubular, intratumoral, intrauterine, intravascular, intravenous, nasal, nasogastric, oral, parenteral, percutaneous, peridural, rectal, respiratory (inhalation), subcutaneous, sublingual, submucosal, topical, transdermal, transmucosal, transtracheal, ureteral, urethral and vaginal. In certain embodiments, a preferred route of administration is parenteral (e.g., intratumoral).


Compositions can be formulated for parenteral administration, e.g., formulated for injection via the intravenous, intramuscular, sub-cutaneous, or even intraperitoneal routes. Typically, such compositions can be prepared as injectables, either as liquid solutions or suspensions; solid forms suitable for use to prepare solutions or suspensions upon the addition of a liquid prior to injection can also be prepared; and the preparations can also be emulsified. The preparation of such formulations will be known to those of skill in the art in light of the present disclosure.


The pharmaceutical forms suitable for injectable use include sterile aqueous solutions or dispersions; formulations including sesame oil, peanut oil, or aqueous propylene glycol; and sterile powders for the extemporaneous preparation of sterile injectable solutions or dispersions. In all cases the form must be sterile and must be fluid to the extent that it may be easily injected. It also should be stable under the conditions of manufacture and storage and must be preserved against the contaminating action of microorganisms, such as bacteria and fungi.


The carrier also can be a solvent or dispersion medium containing, for example, water, ethanol, polyol (for example, glycerol, propylene glycol, and liquid polyethylene glycol, and the like), suitable mixtures thereof, and vegetable oils. The proper fluidity can be maintained, for example, by the use of a coating, such as lecithin, by the maintenance of the required particle size in the case of dispersion, and by the use of surfactants. The prevention of the action of microorganisms can be brought about by various antibacterial and antifungal agents, for example, parabens, chlorobutanol, phenol, sorbic acid, thimerosal, and the like. In many cases, it will be preferable to include isotonic agents, for example, sugars or sodium chloride. Prolonged absorption of the injectable compositions can be brought about by the use in the compositions of agents delaying absorption, for example, aluminum monostearate and gelatin.


Sterile injectable solutions are prepared by incorporating the active compounds in the required amount in the appropriate solvent with various of the other ingredients enumerated above, as required, followed by filtered sterilization. Generally, dispersions are prepared by incorporating the various sterilized active ingredients into a sterile vehicle which contains the basic dispersion medium and the required other ingredients from those enumerated above. In the case of sterile powders for the preparation of sterile injectable solutions, the preferred methods of preparation are vacuum-drying and freeze-drying techniques, which yield a powder of the active ingredient, plus any additional desired ingredient from a previously sterile-filtered solution thereof.


Intratumoral injections are discussed, e.g., in Lammers, et al., “Effect of Intratumoral Injection on the Biodistribution and the Therapeutic Potential of HPMA Copolymer-Based Drug Delivery Systems” Neoplasia. 2006, 10, 788-795.


Pharmacologically acceptable excipients usable in the rectal composition as a gel, cream, enema, or rectal suppository, include, without limitation, any one or more of cocoa butter glycerides, synthetic polymers such as polyvinylpyrrolidone, PEG (like PEG ointments), glycerine, glycerinated gelatin, hydrogenated vegetable oils, poloxamers, mixtures of polyethylene glycols of various molecular weights and fatty acid esters of polyethylene glycol Vaseline, anhydrous lanolin, shark liver oil, sodium saccharinate, menthol, sweet almond oil, sorbitol, sodium benzoate, anoxid SBN, vanilla essential oil, aerosol, parabens in phenoxyethanol, sodium methyl p-oxybenzoate, sodium propyl p-oxybenzoate, diethylamine, carbomers, carbopol, methyloxybenzoate, macrogol cetostearyl ether, cocoyl caprylocaprate, isopropyl alcohol, propylene glycol, liquid paraffin, xanthan gum, carboxy-metabisulfite, sodium edetate, sodium benzoate, potassium metabisulfite, grapefruit seed extract, methyl sulfonyl methane (MSM), lactic acid, glycine, vitamins, such as vitamin A and E and potassium acetate.


In certain embodiments, suppositories can be prepared by mixing the chemical entities described herein with suitable non-irritating excipients or carriers such as cocoa butter, polyethylene glycol or a suppository wax which are solid at ambient temperature but liquid at body temperature and therefore melt in the rectum and release the active compound. In other embodiments, compositions for rectal administration are in the form of an enema.


In other embodiments, the compounds described herein or a pharmaceutical composition thereof are suitable for local delivery to the digestive or GI tract by way of oral administration (e.g., solid or liquid dosage forms).


Solid dosage forms for oral administration include capsules, tablets, pills, powders, and granules. In such solid dosage forms, the chemical entity is mixed with one or more pharmaceutically acceptable excipients, such as sodium citrate or dicalcium phosphate and/or: a) fillers or extenders such as starches, lactose, sucrose, glucose, mannitol, and silicic acid, b) binders such as, for example, carboxymethylcellulose, alginates, gelatin, polyvinylpyrrolidinone, sucrose, and acacia, c) humectants such as glycerol, d) disintegrating agents such as agar-agar, calcium carbonate, potato or tapioca starch, alginic acid, certain silicates, and sodium carbonate, e) solution retarding agents such as paraffin, f) absorption accelerators such as quaternary ammonium compounds, g) wetting agents such as, for example, cetyl alcohol and glycerol monostearate, h) absorbents such as kaolin and bentonite clay, and i) lubricants such as talc, calcium stearate, magnesium stearate, solid polyethylene glycols, sodium lauryl sulfate, and mixtures thereof. In the case of capsules, tablets and pills, the dosage form may also comprise buffering agents. Solid compositions of a similar type may also be employed as fillers in soft and hard-filled gelatin capsules using such excipients as lactose or milk sugar as well as high molecular weight polyethylene glycols and the like.


In one embodiment, the compositions will take the form of a unit dosage form such as a pill or tablet and thus the composition may contain, along with a chemical entity provided herein, a diluent such as lactose, sucrose, dicalcium phosphate, or the like; a lubricant such as magnesium stearate or the like; and a binder such as starch, gum acacia, polyvinylpyrrolidine, gelatin, cellulose, cellulose derivatives or the like. In another solid dosage form, a powder, marume, solution or suspension (e.g., in propylene carbonate, vegetable oils, PEG's, poloxamer 124 or triglycerides) is encapsulated in a capsule (gelatin or cellulose base capsule). Unit dosage forms in which one or more chemical entities provided herein or additional active agents are physically separated are also contemplated; e.g., capsules with granules (or tablets in a capsule) of each drug; two-layer tablets; two-compartment gel caps, etc. Enteric coated or delayed release oral dosage forms are also contemplated.


Other physiologically acceptable compounds include wetting agents, emulsifying agents, dispersing agents or preservatives that are particularly useful for preventing the growth or action of microorganisms. Various preservatives are well known and include, for example, phenol and ascorbic acid.


In certain embodiments the excipients are sterile and generally free of undesirable matter. These compositions can be sterilized by conventional, well-known sterilization techniques. For various oral dosage form excipients such as tablets and capsules sterility is not required. The USP/NF standard is usually sufficient.


In certain embodiments, solid oral dosage forms can further include one or more components that chemically and/or structurally predispose the composition for delivery of the chemical entity to the stomach or the lower GI; e.g., the ascending colon and/or transverse colon and/or distal colon and/or small bowel. Exemplary formulation techniques are described in, e.g., Filipski, K. J., et al., Current Topics in Medicinal Chemistry, 2013, 13, 776-802, which is incorporated herein by reference in its entirety.


Examples include upper-GI targeting techniques, e.g., Accordion Pill (Intec Pharma), floating capsules, and materials capable of adhering to mucosal walls.


Other examples include lower-GI targeting techniques. For targeting various regions in the intestinal tract, several enteric/pH-responsive coatings and excipients are available. These materials are typically polymers that are designed to dissolve or erode at specific pH ranges, selected based upon the GI region of desired drug release. These materials also function to protect acid labile drugs from gastric fluid or limit exposure in cases where the active ingredient may be irritating to the upper GI (e.g., hydroxypropyl methylcellulose phthalate series, Coateric (polyvinyl acetate phthalate), cellulose acetate phthalate, hydroxypropyl methylcellulose acetate succinate, Eudragit series (methacrylic acid-methyl methacrylate copolymers), and Marcoat). Other techniques include dosage forms that respond to local flora in the GI tract, Pressure-controlled colon delivery capsule, and Pulsincap.


Ocular compositions can include, without limitation, one or more of any of the following: viscogens (e.g., Carboxymethylcellulose, Glycerin, Polyvinylpyrrolidone, Polyethylene glycol); Stabilizers (e.g., Pluronic (triblock copolymers), Cyclodextrins); Preservatives (e.g., Benzalkonium chloride, ETDA, SofZia (boric acid, propylene glycol, sorbitol, and zinc chloride; Alcon Laboratories, Inc.), Purite (stabilized oxychloro complex; Allergan, Inc.)).


Topical compositions can include ointments and creams. Ointments are semisolid preparations that are typically based on petrolatum or other petroleum derivatives. Creams containing the selected active agent are typically viscous liquid or semisolid emulsions, often either oil-in-water or water-in-oil. Cream bases are typically water-washable, and contain an oil phase, an emulsifier and an aqueous phase. The oil phase, also sometimes called the “internal” phase, is generally comprised of petrolatum and a fatty alcohol such as cetyl or stearyl alcohol; the aqueous phase usually, although not necessarily, exceeds the oil phase in volume, and generally contains a humectant. The emulsifier in a cream formulation is generally a nonionic, anionic, cationic or amphoteric surfactant. As with other carriers or vehicles, an ointment base should be inert, stable, nonirritating and non-sensitizing.


In any of the foregoing embodiments, pharmaceutical compositions described herein can include one or more one or more of the following: lipids, interbilayer crosslinked multilamellar vesicles, biodegradeable poly(D,L-lactic-co-glycolic acid) [PLGA]-based or poly anhydride-based nanoparticles or microparticles, and nanoporous particle-supported lipid bilayers.


Dosages


The dosages may be varied depending on the requirement of the patient, the severity of the condition being treating and the particular compound being employed. Determination of the proper dosage for a particular situation can be determined by one skilled in the medical arts. The total daily dosage may be divided and administered in portions throughout the day or by means providing continuous delivery.


In some embodiments, the compounds described herein are administered at a dosage of from about 0.001 mg/Kg to about 500 mg/Kg (e.g., from about 0.01 mg/Kg to about 100 mg/Kg; from about 0.01 mg/Kg to about 10 mg/Kg; from about 0.01 mg/Kg to about 1 mg/Kg; from about 0.01 mg/Kg to about 0.1 mg/Kg; from about 0.1 mg/Kg to about 100 mg/Kg; from about 0.1 mg/Kg to about 10 mg/Kg).


Regimens


The foregoing dosages can be administered on a daily basis (e.g., as a single dose or as two or more divided doses) or non-daily basis (e.g., every other day, every two days, every three days, once weekly, twice weeks, once every two weeks, once a month).


In some embodiments, the period of administration of a compound described herein is for 1 day, 2 days, 3 days, 4 days, 5 days, 6 days, 7 days, 8 days, 9 days, 10 days, 11 days, 12 days, 13 days, 14 days, 3 weeks, 4 weeks, 5 weeks, 6 weeks, 7 weeks, 8 weeks, 9 weeks, 10 weeks, 11 weeks, 12 weeks, 4 months, 5 months, 6 months, 7 months, 8 months, 9 months, 10 months, 11 months, 12 months, or more. In a further embodiment, a period of during which administration is stopped is for 1 day, 2 days, 3 days, 4 days, 5 days, 6 days, 7 days, 8 days, 9 days, 10 days, 11 days, 12 days, 13 days, 14 days, 3 weeks, 4 weeks, 5 weeks, 6 weeks, 7 weeks, 8 weeks, 9 weeks, 10 weeks, 11 weeks, 12 weeks, 4 months, 5 months, 6 months, 7 months, 8 months, 9 months, 10 months, 11 months, 12 months, or more. In an embodiment, a therapeutic compound is administered to an individual for a period of time followed by a separate period of time. In another embodiment, a therapeutic compound is administered for a first period and a second period following the first period, with administration stopped during the second period, followed by a third period where administration of the therapeutic compound is started and then a fourth period following the third period where administration is stopped. In an aspect of this embodiment, the period of administration of a therapeutic compound followed by a period where administration is stopped is repeated for a determined or undetermined period of time. In a further embodiment, a period of administration is for 1 day, 2 days, 3 days, 4 days, 5 days, 6 days, 7 days, 8 days, 9 days, 10 days, 11 days, 12 days, 13 days, 14 days, 3 weeks, 4 weeks, 5 weeks, 6 weeks, 7 weeks, 8 weeks, 9 weeks, 10 weeks, 11 weeks, 12 weeks, 4 months, 5 months, 6 months, 7 months, 8 months, 9 months, 10 months, 11 months, 12 months, or more. In a further embodiment, a period of during which administration is stopped is for 1 day, 2 days, 3 days, 4 days, 5 days, 6 days, 7 days, 8 days, 9 days, 10 days, 11 days, 12 days, 13 days, 14 days, 3 weeks, 4 weeks, 5 weeks, 6 weeks, 7 weeks, 8 weeks, 9 weeks, 10 weeks, 11 weeks, 12 weeks, 4 months, 5 months, 6 months, 7 months, 8 months, 9 months, 10 months, 11 months, 12 months, or more.


Methods of Treatment


In some embodiments, methods for treating a subject having condition, disease or disorder in which increased (e.g., excessive)STING activity (e.g., STING signaling) contributes to the pathology and/or symptoms and/or progression of the condition, disease or disorder (e.g., immune disorders, cancer) are provided.


Indications


In some embodiments, the condition, disease or disorder is cancer. Non-limiting examples of cancer include melanoma, carcinoma, lymphoma, blastoma, sarcoma, and leukemia or lymphoid malignancies. More particular examples of such cancers include breast cancer, colon cancer, rectal cancer, colorectal cancer, kidney or renal cancer, clear cell cancer lung cancer including small-cell lung cancer, non-small cell lung cancer, adenocarcinoma of the lung and squamous carcinoma of the lung, squamous cell cancer (e.g. epithelial squamous cell cancer), cervical cancer, ovarian cancer, prostate cancer, prostatic neoplasms, liver cancer, bladder cancer, cancer of the peritoneum, hepatocellular cancer, gastric or stomach cancer including gastrointestinal cancer, gastrointestinal stromal tumor, pancreatic cancer, head and neck cancer, glioblastoma, retinoblastoma, astrocytoma, thecomas, arrhenoblastomas, hepatoma, hematologic malignancies including non-Hodgkins lymphoma (NHL), multiple myeloma, myelodysplasia disorders, myeloproliferative disorders, chronic myelogenous leukemia, and acute hematologic malignancies, endometrial or uterine carcinoma, endometriosis, endometrial stromal sarcoma, fibrosarcomas, choriocarcinoma, salivary gland carcinoma, vulval cancer, thyroid cancer, esophageal carcinomas, hepatic carcinoma, anal carcinoma, penile carcinoma, nasopharyngeal carcinoma, laryngeal carcinomas, Kaposi's sarcoma, mast cell sarcoma, ovarian sarcoma, uterine sarcoma, melanoma, malignant mesothelioma, skin carcinomas, Schwannoma, oligodendroglioma, neuroblastomas, neuroectodermal tumor, rhabdomyosarcoma, osteogenic sarcoma, leiomyosarcomas, Ewing Sarcoma, peripheral primitive neuroectodermal tumor, urinary tract carcinomas, thyroid carcinomas, Wilm's tumor, as well as abnormal vascular proliferation associated with phakomatoses, edema (such as that associated with brain tumors), and Meigs' syndrome. In some cases, the cancer is melanoma.


In some embodiments, the condition, disease or disorder is a neurological disorder, which includes disorders that involve the central nervous system (brain, brainstem and cerebellum), the peripheral nervous system (including cranial nerves), and the autonomic nervous system (parts of which are located in both central and peripheral nervous system). Non-limiting examples of neurological disorders include acquired epileptiform aphasia; acute disseminated encephalomyelitis; adrenoleukodystrophy; age-related macular degeneration; agenesis of the corpus callosum; agnosia; Aicardi syndrome; Alexander disease; Alpers' disease; alternating hemiplegia; Alzheimer's disease; Vascular dementia; amyotrophic lateral sclerosis; anencephaly; Angelman syndrome; angiomatosis; anoxia; aphasia; apraxia; arachnoid cysts; arachnoiditis; Anronl-Chiari malformation; arteriovenous malformation; Asperger syndrome; ataxia telegiectasia; attention deficit hyperactivity disorder; autism; autonomic dysfunction; back pain; Batten disease; Behcet's disease; Bell's palsy; benign essential blepharospasm; benign focal; amyotrophy; benign intracranial hypertension; Binswanger's disease; blepharospasm; Bloch Sulzberger syndrome; brachial plexus injury; brain abscess; brain injury; brain tumors (including glioblastoma multiforme); spinal tumor; Brown-Sequard syndrome; Canavan disease; carpal tunnel syndrome; causalgia; central pain syndrome; central pontine myelinolysis; cephalic disorder; cerebral aneurysm; cerebral arteriosclerosis; cerebral atrophy; cerebral gigantism; cerebral palsy; Charcot-Marie-Tooth disease; chemotherapy-induced neuropathy and neuropathic pain; Chiari malformation; chorea; chronic inflammatory demyelinating polyneuropathy; chronic pain; chronic regional pain syndrome; Coffin Lowry syndrome; coma, including persistent vegetative state; congenital facial diplegia; corticobasal degeneration; cranial arteritis; craniosynostosis; Creutzfeldt-Jakob disease; cumulative trauma disorders; Cushing's syndrome; cytomegalic inclusion body disease; cytomegalovirus infection; dancing eyes-dancing feet syndrome; Dandy-Walker syndrome; Dawson disease; De Morsier's syndrome; Dejerine-Klumke palsy; dementia; dermatomyositis; diabetic neuropathy; diffuse sclerosis; dysautonomia; dysgraphia; dyslexia; dystonias; early infantile epileptic encephalopathy; empty sella syndrome; encephalitis; encephaloceles; encephalotrigeminal angiomatosis; epilepsy; Erb's palsy; essential tremor; Fabry's disease; Fahr's syndrome; fainting; familial spastic paralysis; febrile seizures; Fisher syndrome; Friedreich's ataxia; fronto-temporal dementia and other “tauopathies”; Gaucher's disease; Gerstmann's syndrome; giant cell arteritis; giant cell inclusion disease; globoid cell leukodystrophy; Guillain-Barre syndrome; HTLV-1-associated myelopathy; Hallervorden-Spatz disease; head injury; headache; hemifacial spasm; hereditary spastic paraplegia; heredopathia atactica polyneuritiformis; herpes zoster oticus; herpes zoster; Hirayama syndrome; HIV-associated dementia and neuropathy (also neurological manifestations of AIDS); holoprosencephaly; Huntington's disease and other polyglutamine repeat diseases; hydranencephaly; hydrocephalus; hypercortisolism; hypoxia; immune-mediated encephalomyelitis; inclusion body myositis; incontinentia pigmenti; infantile phytanic acid storage disease; infantile refsum disease; infantile spasms; inflammatory myopathy; intracranial cyst; intracranial hypertension; Joubert syndrome; Kearns-Sayre syndrome; Kennedy disease Kinsbourne syndrome; Klippel Feil syndrome; Krabbe disease; Kugelberg-Welander disease; kuru; Lafora disease; Lambert-Eaton myasthenic syndrome; Landau-Kleffner syndrome; lateral medullary (Wallenberg) syndrome; learning disabilities; Leigh's disease; Lennox-Gustaut syndrome; Lesch-Nyhan syndrome; leukodystrophy; Lewy body dementia; Lissencephaly; locked-in syndrome; Lou Gehrig's disease (i.e., motor neuron disease or amyotrophic lateral sclerosis); lumbar disc disease; Lyme disease-neurological sequelae; Machado-Joseph disease; macrencephaly; megalencephaly; Melkersson-Rosenthal syndrome; Menieres disease; meningitis; Menkes disease; metachromatic leukodystrophy; microcephaly; migraine; Miller Fisher syndrome; mini-strokes; mitochondrial myopathies; Mobius syndrome; monomelic amyotrophy; motor neuron disease; Moyamoya disease; mucopolysaccharidoses; milti-infarct dementia; multifocal motor neuropathy; multiple sclerosis and other demyelinating disorders; multiple system atrophy with postural hypotension; p muscular dystrophy; myasthenia gravis; myelinoclastic diffuse sclerosis; myoclonic encephalopathy of infants; myoclonus; myopathy; myotonia congenital; narcolepsy; neurofibromatosis; neuroleptic malignant syndrome; neurological manifestations of AIDS; neurological sequelae of lupus; neuromyotonia; neuronal ceroid lipofuscinosis; neuronal migration disorders; Niemann-Pick disease; O'Sullivan-McLeod syndrome; occipital neuralgia; occult spinal dysraphism sequence; Ohtahara syndrome; olivopontocerebellar atrophy; opsoclonus myoclonus; optic neuritis; orthostatic hypotension; overuse syndrome; paresthesia; Parkinson's disease; paramyotonia congenital; paraneoplastic diseases; paroxysmal attacks; Parry Romberg syndrome; Pelizaeus-Merzbacher disease; periodic paralyses; peripheral neuropathy; painful neuropathy and neuropathic pain; persistent vegetative state; pervasive developmental disorders; photic sneeze reflex; phytanic acid storage disease; Pick's disease; pinched nerve; pituitary tumors; polymyositis; porencephaly; post-polio syndrome; postherpetic neuralgia; postinfectious encephalomyelitis; postural hypotension; Prader-Willi syndrome; primary lateral sclerosis; prion diseases; progressive hemifacial atrophy; progressive multifocal leukoencephalopathy; progressive sclerosing poliodystrophy; progressive supranuclear palsy; pseudotumor cerebri; Ramsay-Hunt syndrome (types I and II); Rasmussen's encephalitis; reflex sympathetic dystrophy syndrome; Refsum disease; repetitive motion disorders; repetitive stress injuries; restless legs syndrome; retrovirus-associated myelopathy; Rett syndrome; Reye's syndrome; Saint Vitus dance; Sandhoff disease; Schilder's disease; schizencephaly; septo-optic dysplasia; shaken baby syndrome; shingles; Shy-Drager syndrome; Sjögren's syndrome; sleep apnea; Soto's syndrome; spasticity; spina bifida; spinal cord injury; spinal cord tumors; spinal muscular atrophy; Stiff-Person syndrome; stroke; Sturge-Weber syndrome; subacute sclerosing panencephalitis; subcortical arteriosclerotic encephalopathy; Sydenham chorea; syncope; syringomyelia; tardive dyskinesia; Tay-Sachs disease; temporal arteritis; tethered spinal cord syndrome; Thomsen disease; thoracic outlet syndrome; Tic Douloureux; Todd's paralysis; Tourette syndrome; transient ischemic attack; transmissible spongiform encephalopathies; transverse myelitis; traumatic brain injury; tremor; trigeminal neuralgia; tropical spastic paraparesis; tuberous sclerosis; vascular dementia (multi-infarct dementia); vasculitis including temporal arteritis; Von Hippel-Lindau disease; Wallenberg's syndrome; Werdnig-Hoffman disease; West syndrome; whiplash; Williams syndrome; Wildon's disease; amyotrophe lateral sclerosis and Zellweger syndrome.


In some embodiments, the condition, disease or disorder is STING-associated conditions, e.g., type I interferonopathies (e.g., STING-associated vasculopathy with onset in infancy (SAVI)), Aicardi-Goutières Syndrome (AGS), genetic forms of lupus, and inflammation-associated disorders such as systemic lupus erythematosus, and rheumatoid arthritis. In certain embodiments, the condition, disease or disorder is an autoimmune disease (e.g., a cytosolic DNA-triggered autoinflammatory disease). Non-limiting examples include rheumatoid arthritis, systemic lupus erythematosus, multiple sclerosis, inflammatory bowel diseases (IBDs) comprising Crohn disease (CD) and ulcerative colitis (UC), which are chronic inflammatory conditions with polygenic susceptibility. In certain embodiments, the condition is an inflammatory bowel disease. In certain embodiments, the condition is Crohn's disease, autoimmune colitis, iatrogenic autoimmune colitis, ulcerative colitis, colitis induced by one or more chemotherapeutic agents, colitis induced by treatment with adoptive cell therapy, colitis associated by one or more alloimmune diseases (such as graft-vs-host disease, e.g., acute graft vs. host disease and chronic graft vs. host disease), radiation enteritis, collagenous colitis, lymphocytic colitis, microscopic colitis, and radiation enteritis. In certain of these embodiments, the condition is alloimmune disease (such as graft-vs-host disease, e.g., acute graft vs. host disease and chronic graft vs. host disease), celiac disease, irritable bowel syndrome, rheumatoid arthritis, lupus, scleroderma, psoriasis, cutaneous T-cell lymphoma, uveitis, and mucositis (e.g., oral mucositis, esophageal mucositis or intestinal mucositis).


In some embodiments, modulation of the immune system by STING provides for the treatment of diseases, including diseases caused by foreign agents. Exemplary infections by foreign agents which may be treated and/or prevented by the method of the present invention include an infection by a bacterium (e.g., a Gram-positive or Gram-negative bacterium), an infection by a fungus, an infection by a parasite, and an infection by a virus. In one embodiment of the present invention, the infection is a bacterial infection (e.g., infection by E. coli, Klebsiella pneumoniae, Pseudomonas aeruginosa, Salmonella spp., Staphylococcus aureus, Streptococcus spp., or vancomycin-resistant enterococcus), or sepsis. In another embodiment, the infection is a fungal infection (e.g. infection by a mould, a yeast, or a higher fungus). In still another embodiment, the infection is a parasitic infection (e.g., infection by a single-celled or multicellular parasite, including Giardia duodenalis, Cryptosporidium parvum, Cyclospora cayetanensis, and Toxoplasma gondiz).


In yet another embodiment, the infection is a viral infection (e.g., infection by a virus associated with AIDS, avian flu, chickenpox, cold sores, common cold, gastroenteritis, glandular fever, influenza, measles, mumps, pharyngitis, pneumonia, rubella, SARS, and lower or upper respiratory tract infection (e.g., respiratory syncytial virus)).


In some embodiments, the condition, disease or disorder is hepatits B (see, e.g., WO 2015/061294).


In some embodiments, the condition, disease or disorder is selected from cardiovascular diseases (including e.g., myocardial infarction).


In some embodiments, the condition, disease or disorder is age-related macular degeneration.


In some embodiments, the condition, disease or disorder is mucositis, also known as stomatitis, which can occur as a result of chemotherapy or radiation therapy, either alone or in combination as well as damage caused by exposure to radiation outside of the context of radiation therapy.


In some embodiments, the condition, disease or disorder is uveitis, which is inflammation of the uvea (e.g., anterior uveitis, e.g., iridocyclitis or iritis; intermediate uveitis (also known as pars planitis); posterior uveitis; or chorioretinitis, e.g., pan-uveitis).


In some embodiments, the condition, disease or disorder is selected from the group consisting of a cancer, a neurological disorder, an autoimmune disease, hepatitis B, uvetitis, a cardiovascular disease, age-related macular degeneration, and mucositis.


Still other examples can include those indications discussed herein and below in contemplated combination therapy regimens.


Combination Therapy


This disclosure contemplates both monotherapy regimens as well as combination therapy regimens.


In some embodiments, the methods described herein can further include administering one or more additional therapies (e.g., one or more additional therapeutic agents and/or one or more therapeutic regimens) in combination with administration of the compounds described herein.


In certain embodiments, the methods described herein can further include administering one or more additional cancer therapies.


The one or more additional cancer therapies can include, without limitation, surgery, radiotherapy, chemotherapy, toxin therapy, immunotherapy, cryotherapy, cancer vaccines (e.g., HPV vaccine, hepatitis B vaccine, Oncophage, Provenge) and gene therapy, as well as combinations thereof. Immunotherapy, including, without limitation, adoptive cell therapy, the derivation of stem cells and/or dendritic cells, blood transfusions, lavages, and/or other treatments, including, without limitation, freezing a tumor.


In some embodiments, the one or more additional cancer therapies is chemotherapy, which can include administering one or more additional chemotherapeutic agents.


In certain embodiments, the additional chemotherapeutic agent is an immunomodulatory moiety, e.g., an immune checkpoint inhibitor. In certain of these embodiments, the immune checkpoint inhibitor targets an immune checkpoint receptor selected from the group consisting of CTLA-4, PD-1, PD-L1, PD-1-PD-L1, PD-1-PD-L2, interleukin-2 (IL-2), indoleamine 2,3-dioxygenase (IDO), IL-10, transforming growth factor-β (TGFβ), T cell immunoglobulin and mucin 3 (TIM3 or HAVCR2), Galectin 9-TIM3, Phosphatidylserine-TIM3, lymphocyte activation gene 3 protein (LAG3), MHC class II-LAG3, 4-1BB-4-1BB ligand, OX40-OX40 ligand, GITR, GITR ligand-GITR, CD27, CD70-CD27, TNFRSF25, TNFRSF25-TL1A, CD40L, CD40-CD40 ligand, HVEM-LIGHT-LTA, HVEM, HVEM-BTLA, HVEM-CD160, HVEM-LIGHT, HVEM-BTLA-CD160, CD80, CD80-PDL-1, PDL2-CD80, CD244, CD48-CD244, CD244, ICOS, ICOS-ICOS ligand, B7-H3, B7-H4, VISTA, TMIGD2, HHLA2-TMIGD2, Butyrophilins, including BTNL2, Siglec family, TIGIT and PVR family members, KIRs, ILTs and LIRs, NKG2D and NKG2A, MICA and MICB, CD244, CD28, CD86-CD28, CD86-CTLA, CD80-CD28, CD39, CD73 Adenosine-CD39-CD73, CXCR4-CXCL12, Phosphatidylserine, TIM3, Phosphatidylserine-TIM3, SIRPA-CD47, VEGF, Neuropilin, CD160, CD30, and CD155; e.g., CTLA-4 or PD1 or PD-L1). See, e.g., Postow, M. J. Clin. Oncol. 2015, 33, 1.


In certain of these embodiments, the immune checkpoint inhibitor is selected from the group consisting of: Urelumab, PF-05082566, MEDI6469, TRX518, Varlilumab, CP-870893, Pembrolizumab (PD1), Nivolumab (PD1), Atezolizumab (formerly MPDL3280A) (PDL1), MEDI4736 (PD-L1), Avelumab (PD-L1), PDR001 (PD1), BMS-986016, MGA271, Lirilumab, IPH2201, Emactuzumab, INCB024360, Galunisertib, Ulocuplumab, BKT140, Bavituximab, CC-90002, Bevacizumab, and MNRP1685A, and MGA271.


In certain embodiments, the additional chemotherapeutic agent is an alkylating agent. Alkylating agents are so named because of their ability to alkylate many nucleophilic functional groups under conditions present in cells, including, but not limited to cancer cells. In a further embodiment, an alkylating agent includes, but is not limited to, Cisplatin, carboplatin, mechlorethamine, cyclophosphamide, chlorambucil, ifosfamide and/or oxaliplatin. In an embodiment, alkylating agents can function by impairing cell function by forming covalent bonds with the amino, carboxyl, sulfhydryl, and phosphate groups in biologically important molecules or they can work by modifying a cell's DNA. In a further embodiment an alkylating agent is a synthetic, semisynthetic or derivative.


In certain embodiments, the additional chemotherapeutic agent is an anti-metabolite. Anti-metabolites masquerade as purines or pyrimidines, the building-blocks of DNA and in general, prevent these substances from becoming incorporated in to DNA during the “S” phase (of the cell cycle), stopping normal development and division. Anti-metabolites can also affect RNA synthesis. In an embodiment, an antimetabolite includes, but is not limited to azathioprine and/or mercaptopurine. In a further embodiment an anti-metabolite is a synthetic, semisynthetic or derivative.


In certain embodiments, the additional chemotherapeutic agent is a plant alkaloid and/or terpenoid. These alkaloids are derived from plants and block cell division by, in general, preventing microtubule function. In an embodiment, a plant alkaloid and/or terpenoid is a vinca alkaloid, a podophyllotoxin and/or a taxane. Vinca alkaloids, in general, bind to specific sites on tubulin, inhibiting the assembly of tubulin into microtubules, generally during the M phase of the cell cycle. In an embodiment, a vinca alkaloid is derived, without limitation, from the Madagascar periwinkle, Catharanthus roseus (formerly known as Vinca rosea). In an embodiment, a vinca alkaloid includes, without limitation, Vincristine, Vinblastine, Vinorelbine and/or Vindesine. In an embodiment, a taxane includes, but is not limited, to Taxol, Paclitaxel and/or Docetaxel. In a further embodiment a plant alkaloid or terpernoid is a synthetic, semisynthetic or derivative. In a further embodiment, a podophyllotoxin is, without limitation, an etoposide and/or teniposide. In an embodiment, a taxane is, without limitation, docetaxel and/or ortataxel. [021] In an embodiment, a cancer therapeutic is a topoisomerase. Topoisomerases are essential enzymes that maintain the topology of DNA. Inhibition of type I or type II topoisomerases interferes with both transcription and replication of DNA by upsetting proper DNA supercoiling. In a further embodiment, a topoisomerase is, without limitation, a type I topoisomerase inhibitor or a type II topoisomerase inhibitor. In an embodiment a type I topoisomerase inhibitor is, without limitation, a camptothecin. In another embodiment, a camptothecin is, without limitation, exatecan, irinotecan, lurtotecan, topotecan, BNP 1350, CKD 602, DB 67 (AR67) and/or ST 1481. In an embodiment, a type II topoisomerase inhibitor is, without limitation, epipodophyllotoxin. In a further embodiment an epipodophyllotoxin is, without limitation, an amsacrine, etoposid, etoposide phosphate and/or teniposide. In a further embodiment a topoisomerase is a synthetic, semisynthetic or derivative, including those found in nature such as, without limitation, epipodophyllotoxins, substances naturally occurring in the root of American Mayapple (Podophyllum peltatum).


In certain embodiments, the additional chemotherapeutic agent is a stilbenoid. In a further embodiment, a stilbenoid includes, but is not limited to, Resveratrol, Piceatannol, Pinosylvin, Pterostilbene, Alpha-Viniferin, Ampelopsin A, Ampelopsin E, Diptoindonesin C, Diptoindonesin F, Epsilon-Vinferin, Flexuosol A, Gnetin H, Hemsleyanol D, Hopeaphenol, Trans-Diptoindonesin B, Astringin, Piceid and Diptoindonesin A. In a further embodiment a stilbenoid is a synthetic, semisynthetic or derivative.


In certain embodiments, the additional chemotherapeutic agent is a cytotoxic antibiotic. In an embodiment, a cytotoxic antibiotic is, without limitation, an actinomycin, an anthracenedione, an anthracycline, thalidomide, dichloroacetic acid, nicotinic acid, 2-deoxyglucose and/or chlofazimine. In an embodiment, an actinomycin is, without limitation, actinomycin D, bacitracin, colistin (polymyxin E) and/or polymyxin B. In another embodiment, an antracenedione is, without limitation, mitoxantrone and/or pixantrone. In a further embodiment, an anthracycline is, without limitation, bleomycin, doxorubicin (Adriamycin), daunorubicin (daunomycin), epirubicin, idarubicin, mitomycin, plicamycin and/or valrubicin. In a further embodiment a cytotoxic antibiotic is a synthetic, semisynthetic or derivative.


In certain embodiments, the additional chemotherapeutic agent is selected from endostatin, angiogenin, angiostatin, chemokines, angioarrestin, angiostatin (plasminogen fragment), basement-membrane collagen-derived anti-angiogenic factors (tumstatin, canstatin, or arrestin), anti-angiogenic antithrombin III, signal transduction inhibitors, cartilage-derived inhibitor (CDI), CD59 complement fragment, fibronectin fragment, gro-beta, heparinases, heparin hexasaccharide fragment, human chorionic gonadotropin (hCG), interferon alpha/beta/gamma, interferon inducible protein (IP-10), interleukin-12, kringle 5 (plasminogen fragment), metalloproteinase inhibitors (TIMPs), 2-methoxyestradiol, placental ribonuclease inhibitor, plasminogen activator inhibitor, platelet factor-4 (PF4), prolactin 16 kD fragment, proliferin-related protein (PRP), various retinoids, tetrahydrocortisol-S, thrombospondin-1 (TSP-1), transforming growth factor-beta (TGF-β), vasculostatin, vasostatin (calreticulin fragment) and the like.


In certain embodiments, the additional chemotherapeutic agent is selected from abiraterone acetate, altretamine, anhydrovinblastine, auristatin, bexarotene, bicalutamide, BMS 184476, 2,3,4,5,6-pentafluoro-N-(3-fluoro-4-methoxyphenyl)benzene sulfonamide, bleomycin, N,N-dimethyl-L-valyl-L-valyl-N-methyl-L-valyl-L-proly-1-Lproline-t-butylamide, cachectin, cemadotin, chlorambucil, cyclophosphamide, 3′,4′-didehydro-4′-deoxy-8′-norvin-caleukoblastine, docetaxol, doxetaxel, cyclophosphamide, carboplatin, carmustine, cisplatin, cryptophycin, cyclophosphamide, cytarabine, dacarbazine (DTIC), dactinomycin, daunorubicin, decitabine dolastatin, doxorubicin (adriamycin), etoposide, 5-fluorouracil, finasteride, flutamide, hydroxyurea and hydroxyureataxanes, ifosfamide, liarozole, lonidamine, lomustine (CCNU), MDV3100, mechlorethamine (nitrogen mustard), melphalan, mivobulin isethionate, rhizoxin, sertenef, streptozocin, mitomycin, methotrexate, taxanes, nilutamide, onapristone, paclitaxel, prednimustine, procarbazine, RPR109881, stramustine phosphate, tamoxifen, tasonermin, taxol, tretinoin, vinblastine, vincristine, vindesine sulfate, and vinflunine.


In certain embodiments, the additional chemotherapeutic agent is platinum, cisplatin, carboplatin, oxaliplatin, mechlorethamine, cyclophosphamide, chlorambucil, azathioprine, mercaptopurine, vincristine, vinblastine, vinorelbine, vindesine, etoposide and teniposide, paclitaxel, docetaxel, irinotecan, topotecan, amsacrine, etoposide, etoposide phosphate, teniposide, 5-fluorouracil, leucovorin, methotrexate, gemcitabine, taxane, leucovorin, mitomycin C, tegafur-uracil, idarubicin, fludarabine, mitoxantrone, ifosfamide and doxorubicin. Additional agents include inhibitors of mTOR (mammalian target of rapamycin), including but not limited to rapamycin, everolimus, temsirolimus and deforolimus.


In still other embodiments, the additional chemotherapeutic agent can be selected from those delineated in U.S. Pat. No. 7,927,613, which is incorporated herein by reference in its entirety.


In some embodiments, the additional therapeutic agent and/or regimen are those that can be used for treating other STING-associated conditions, e.g., type I interferonopathies (e.g., STING-associated vasculopathy with onset in infancy (SAVI)), Aicardi-Goutières Syndrome (AGS), genetic forms of lupus, and inflammation-associated disorders such as systemic lupus erythematosus, and rheumatoid arthritis and the like.


Non-limiting examples of additional therapeutic agents and/or regimens for treating rheumatoid arthritis include non-steroidal anti-inflammatory drugs (NSAIDs; e.g., ibuprofen and naproxen), corticosteroids (e.g, prednisone), disease-modifying antirheumatic drugs (DMARDs; e.g., methotrexate (Trexall®, Otrexup®, Rasuvo®, Rheumatrex®), leflunomide (Arava®), hydroxychloroquine (Plaquenil), PF-06650833, iguratimod, tofacitinib (Xeljanz®), ABBV-599, evobrutinib, and sulfasalazine (Azulfidine®)), and biologics (e.g., abatacept (Orencia®), adalimumab (Humira®), anakinra (Kineret®), certolizumab (Cimzia®), etanercept (Enbrel®), golimumab (Simponi®), infliximab (Remicade®), rituximab (Rituxan®), tocilizumab (Actemra®), vobarilizumab, sarilumab (Kevzara®), secukinumab, ABP 501, CHS-0214, ABC-3373, and tocilizumab (ACTEMRA®)).


Non-limiting examples of additional therapeutic agents and/or regimens for treating lupus include steroids, topical immunomodulators (e.g., tacrolimus ointment (Protopic®) and pimecrolimus cream (Elidel®)), thalidomide (Thalomid®), non-steroidal anti-inflammatory drugs (NSAIDs; e.g., ibuprofen and naproxen), antimalarial drugs (e.g., Hydroxychloroquine (Plaquenil)), corticosteroids (e.g, prednisone) and immunomodulators (e.g., evobrutinib, iberdomide, voclosporin, cenerimod, azathioprine (Imuran®), cyclophosphamide (Cytoxan®, Neosar®, Endoxan®), and cyclosporine (Neoral, Sandimmune®, Gengraf®), and mycophenolate mofetil) baricitinb, iguratimod, filogotinib, GS-9876, rapamycin, and PF-06650833), and biologics (e.g., belimumab (Benlysta®), anifrolumab, prezalumab, MEDIO700, obinutuzumab, vobarilizumab, lulizumab, atacicept, PF-06823859, and lupizor, rituximab, BT063, BI655064, BIIB059, aldesleukin (Proleukin®), dapirolizumab, edratide, IFN-α-kinoid, OMS721, RC18, RSLV-132, theralizumab, XmAb5871, and ustekinumab (Stelara®)). For example, non-limiting treatments for systemic lupus erythematosus include non-steroidal anti-inflammatory drugs (NSAIDs; e.g., ibuprofen and naproxen), antimalarial drugs (e.g., Hydroxychloroquine (Plaquenil)), corticosteroids (e.g, prednisone) and immunomodulators (e.g., iberdomide, voclosporin, azathioprine (Imuran®), cyclophosphamide (Cytoxan®, Neosar®, Endoxan®), and cyclosporine (Neoral, Sandimmune®, Gengraf®), and mycophenolate mofetil, baricitinb, filogotinib, and PF-06650833), and biologics (e.g., belimumab (Benlysta®), anifrolumab, prezalumab, MEDIO700, vobarilizumab, lulizumab, atacicept, PF-06823859, lupizor, rituximab, BT063, BI655064, BIIB059, aldesleukin (Proleukin®), dapirolizumab, edratide, IFN-α-kinoid, RC18, RSLV-132, theralizumab, XmAb5871, and ustekinumab (Stelara®)). As another example, non-limiting examples of treatments for cutaneous lupus include steroids, immunomodulators (e.g., tacrolimus ointment (Protopic®) and pimecrolimus cream (Elidel®)), GS-9876, filogotinib, and thalidomide (Thalomid®). Agents and regimens for treating drug-induced and/or neonatal lupus can also be administered.


Non-limiting examples of additional therapeutic agents and/or regimens for treating STING-associated vasculopathy with onset in infancy (SAVI) include JAK inhibitors (e.g., tofacitinib, ruxolitinib, filgotinib, and baricitinib).


Non-limiting examples of additional therapeutic agents and/or regimens for treating Aicardi-Goutières Syndrome (AGS) include physiotherapy, treatment for respiratory complications, anticonvulsant therapies for seizures, tube-feeding, nucleoside reverse transcriptase inhibitors (e.g., emtricitabine (e.g., Emtriva®), tenofovir (e.g., Viread®), emtricitabine/tenofovir (e.g., Truvada®), zidovudine, lamivudine, and abacavir), and JAK inhibitors (e.g., tofacitinib, ruxolitinib, filgotinib, and baricitinib).


Non-limiting examples of additional therapeutic agents and/or regimens for treating IBDs include 6-mercaptopurine, AbGn-168H, ABX464, ABT-494, adalimumab, AJM300, alicaforsen, AMG139, anrukinzumab, apremilast, ATR-107 (PF0530900), autologous CD34-selected peripheral blood stem cells transplant, azathioprine, bertilimumab, BI 655066, BMS-936557, certolizumab pegol (Cimzia®), cobitolimod, corticosteroids (e.g., prednisone, Methylprednisolone, prednisone), CP-690,550, CT-P13, cyclosporine, DIMS0150, E6007, E6011, etrasimod, etrolizumab, fecal microbial transplantation, figlotinib, fingolimod, firategrast (SB-683699) (formerly T-0047), GED0301, GLPG0634, GLPG0974, guselkumab, golimumab, GSK1399686, HMPL-004 (Andrographis paniculata extract), IMU-838, infliximab, Interleukin 2 (IL-2), Janus kinase (JAK) inhibitors, laquinimod, masitinib (AB1010), matrix metalloproteinase 9 (MMP 9) inhibitors (e.g., GS-5745), MEDI2070, mesalamine, methotrexate, mirikizumab (LY3074828), natalizumab, NNC 0142-0000-0002, NNC0114-0006, ozanimod, peficitinib (JNJ-54781532), PF-00547659, PF-04236921, PF-06687234, QAX576, RHB-104, rifaximin, risankizumab, RPC1063, SB012, SHP647, sulfasalazine, TD-1473, thalidomide, tildrakizumab (MK 3222), TJ301, TNF-Kinoid®, tofacitinib, tralokinumab, TRK-170, upadacitinib, ustekinumab, UTTR1147A, V565, vatelizumab, VB-201, vedolizumab, and vidofludimus.


Non-limiting examples of additional therapeutic agents and/or regimens for treating irritable bowel syndrome include alosetron, bile acid sequesterants (e.g., cholestyramine, colestipol, colesevelam), chloride channel activators (e.g., lubiprostone), coated peppermint oil capsules, desipramine, dicyclomine, ebastine, eluxadoline, farnesoid X receptor agonist (e.g., obeticholic acid), fecal microbiota transplantation, fluoxetine, gabapentin, guanylate cyclase-C agonists (e.g., linaclotide, plecanatide), ibodutant, imipramine, JCM-16021, loperamide, lubiprostone, nortriptyline, ondansetron, opioids, paroxetine, pinaverium, polyethylene glycol, pregabalin, probiotics, ramosetron, rifaximin, and tanpanor.


Non-limiting examples of additional therapeutic agents and/or regimens for treating scleroderma include non-steroidal anti-inflammatory drugs (NSAIDs; e.g., ibuprofen and naproxen), corticosteroids (e.g, prednisone), immunomodulators (e.g., azathioprine, methotrexate (Trexall®, Otrexup®, Rasuvo®, Rheumatrex®), cyclophosphamide (Cytoxan®, Neosar®, Endoxan®), and cyclosporine (Neoral®, Sandimmune®, Gengraf®), antithymocyte globulin, mycophenolate mofetil, intravenous immunoglobulin, rituximab, sirolimus, and alefacept), calcium channel blockers (e.g., nifedipine), alpha blockers, serotonin receptor antagonists, angiotensin II receptor inhibitors, statins, local nitrates, iloprost, phosphodiesterase 5 inhibitors (e.g., sildenafil), bosentan, tetracycline antibiotics, endothelin receptor antagonists, prostanoids, and tyrosine kinase inhibitors (e.g., imatinib, nilotinib and dasatinib).


Non-limiting examples of additional therapeutic agents and/or regimens for treating Crohn's Disease (CD) include adalimumab, autologous CD34-selected peripheral blood stem cells transplant, 6-mercaptopurine, azathioprine, certolizumab pegol (Cimzia®), corticosteroids (e.g., prednisone), etrolizumab, E6011, fecal microbial transplantation, figlotinib, guselkumab, infliximab, IL-2, JAK inhibitors, matrix metalloproteinase 9 (MMP 9) inhibitors (e.g., GS-5745), MEDI2070, mesalamine, methotrexate, natalizumab, ozanimod, RHB-104, rifaximin, risankizumab, SHP647, sulfasalazine, thalidomide, upadacitinib, V565, and vedolizumab.


Non-limiting examples of additional therapeutic agents and/or regimens for treating UC include AbGn-168H, ABT-494, ABX464, apremilast, PF-00547659, PF-06687234, 6-mercaptopurine, adalimumab, azathioprine, bertilimumab, brazikumab (MEDI2070), cobitolimod, certolizumab pegol (Cimzia®), CP-690,550, corticosteroids (e.g., multimax budesonide, Methylprednisolone), cyclosporine, E6007, etrasimod, etrolizumab, fecal microbial transplantation, figlotinib, guselkumab, golimumab, IL-2, JNIU-838, infliximab, matrix metalloproteinase 9 (MMP9) inhibitors (e.g., GS-5745), mesalamine, mesalamine, mirikizumab (LY3074828), RPC1063, risankizumab (BI 6555066), SHP647, sulfasalazine, TD-1473, TJ301, tildrakizumab (MK 3222), tofacitinib, tofacitinib, ustekinumab, UTTR1147A, and vedolizumab.


Non-limiting examples of additional therapeutic agents and/or regimens for treating autoimmune colitis include corticosteroids (e.g., budesonide, prednisone, prednisolone, Beclometasone dipropionate), diphenoxylate/atropine, infliximab, loperamide, mesalamine, TIP60 inhibitors (see, e.g., U.S. Patent Application Publication No. 2012/0202848), and vedolizumab.


Non-limiting examples of additional therapeutic agents and/or regimens for treating iatrogenic autoimmune colitis include corticosteroids (e.g., budesonide, prednisone, prednisolone, Beclometasone dipropionate), diphenoxylate/atropine, infliximab, loperamide, TIP60 inhibitors (see, e.g., U.S. Patent Application Publication No. 2012/0202848), and vedolizumab.


Non-limiting examples of additional therapeutic agents and/or regimens for treating colitis induced by one or more chemotherapeutics agents include corticosteroids (e.g., budesonide, prednisone, prednisolone, beclometasone dipropionate), diphenoxylate/atropine, infliximab, loperamide, mesalamine, TIP60 inhibitors (see, e.g., U.S. Patent Application Publication No. 2012/0202848), and vedolizumab.


Non-limiting examples of additional therapeutic agents and/or regimens for treating colitis induced by treatment with adoptive cell therapy include corticosteroids (e.g., budesonide, prednisone, prednisolone, beclometasone dipropionate), diphenoxylate/atropine, infliximab, loperamide, TIP60 inhibitors (see, e.g., U.S. Patent Application Publication No. 2012/0202848), and vedolizumab.


Non-limiting examples of additional therapeutic agents and/or regimens for treating colitis associated with one or more alloimmune diseases include corticosteroids (e.g., budesonide, prednisone, prednisolone, beclometasone dipropionate), sulfasalazine, and eicopentaenoic acid.


Non-limiting examples of additional therapeutic agents and/or regimens for treating radiation enteritis include teduglutide, amifostine, angiotensin-converting enzyme (ACE) inhibitors (e.g., benazepril, captopril, enalapril, fosinopril, lisinopril, moexipril, perindopril, quinapril, ramipril, and trandolapril), probiotics, selenium supplementation, statins (e.g., atorvastatin, fluvastatin, lovastatin, pravastatin, rosuvastatin, simvastatin, and pitavastatin), sucralfate, and vitamin E.


Non-limiting examples of additional therapeutic agents and/or regimens for treating collagenous colitis include 6-mercaptopurine, azathaioprine, bismuth subsalicate, Boswellia serrata extract, cholestyramine, colestipol, corticosteroids (e.g., budesonide, prednisone, prednisolone, beclometasone dipropionate), loperamide, mesalamine, methotrexate, probiotics, and sulfasalazine.


Non-limiting examples of additional therapeutic agents and/or regimens for treating lyphocytic colitis include 6-mercaptopurine, azathioprine, bismuth subsalicylate, cholestyramine, colestipol, corticosteroids (e.g., budesonide, prednisone, prednisolone, beclometasone dipropionate), loperamide, mesalamine, methotrexate, and sulfasalazine.


Non-limiting examples of additional therapeutic agents and/or regimens for treating microscopic colitis include 6-mercaptopurine, azathioprine, bismuth subsalicylate, Boswellia serrata extract, cholestyramine, colestipol, corticosteroids (e.g., budesonide, prednisone, prednisolone, beclometasone dipropionate), fecal microbial transplantation, loperamide, mesalamine, methotrexate, probiotics, and sulfasalazine.


Non-limiting examples of additional therapeutic agents and/or regimens for treating alloimmune disease include intrauterine platelet transfusions, intravenous immunoglobin, maternal steroids, abatacept, alemtuzumab, alpha1-antitrypsin, AMG592, antithymocyte globulin, barcitinib, basiliximab, bortezomib, brentuximab, cannabidiol, corticosteroids (e.g., methylprednisone, prednisone), cyclosporine, dacilzumab, defribrotide, denileukin diftitox, glasdegib, ibrutinib, IL-2, infliximab, itacitinib, LBH589, maraviroc, mycophenolate mofetil, natalizumab, neihulizumab, pentostatin, pevonedistat, photobiomodulation, photopheresis, ruxolitinib, sirolimus, sonidegib, tacrolimus, tocilizumab, and vismodegib.


Non-limiting examples of additional therapeutic agents and/or regimens for treating multiple sclerosis (MS) include alemtuzumab (Lemtrada®), ALKS 8700, amiloride, ATX-MS-1467, azathioprine, baclofen (Lioresal®), beta interferons (e.g., IFN-β-1a, IFN-β-1b), cladribine, corticosteroids (e.g., methylprednisolone), daclizumab, dimethyl fumarate (Tecfidera®), fingolimod (Gilenya®), fluoxetine, glatiramer acetate (Copaxone®), hydroxychloroquine, ibudilast, idebenone, laquinimod, lipoic acid, losartan, masitinib, MD1003 (biotin), mitoxantrone, montelukast, natalizumab (Tysabri®), NeuroVax™, ocrelizumab, ofatumumab, pioglitazone, and RPC1063.


Non-limiting examples of additional therapeutic agents and/or regimens for treating graft-vs-host disease include abatacept, alemtuzumab, alpha1-antitrypsin, AMG592, antithymocyte globulin, barcitinib, basiliximab, bortezomib, brentuximab, cannabidiol, corticosteroids (e.g., methylprednisone, prednisone), cyclosporine, dacilzumab, defribrotide, denileukin diftitox, glasdegib, ibrutinib, IL-2, imatinib, infliximab, itacitinib, LBH589, maraviroc, mycophenolate mofetil, natalizumab, neihulizumab, pentostatin, pevonedistat, photobiomodulation, photopheresis, ruxolitinib, sirolimus, sonidegib, tacrolimus, tocilizumab, and vismodegib.


Non-limiting examples of additional therapeutic agents and/or regimens for treating acute graft-vs-host disease include alemtuzumab, alpha-1 antitrypsin, antithymocyte globulin, basiliximab, brentuximab, corticosteroids (e.g., methylprednisone, prednisone), cyclosporine, dacilzumab, defribrotide, denileukin diftitox, ibrutinib, infliximab, itacitinib, LBH589, mycophenolate mofetil, natalizumab, neihulizumab, pentostatin, photopheresis, ruxolitinib, sirolimus, tacrolimus, and tocilizumab.


Non-limiting examples of additional therapeutic agents and/or regimens for treating chronic graft vs. host disease include abatacept, alemtuzumab, AMG592, antithymocyte globulin, basiliximab, bortezomib, corticosteroids (e.g., methylprednisone, prednisone), cyclosporine, dacilzumab, denileukin diftitox, glasdegib, ibrutinib, IL-2, imatinib, infliximab, mycophenolate mofetil, pentostatin, photobiomodulation, photopheresis, ruxolitinib, sirolimus, sonidegib, tacrolimus, tocilizumab, and vismodegib.


Non-limiting examples of additional therapeutic agents and/or regimens for treating celiac disease include AMG 714, AMY01, Aspergillus niger prolyl endoprotease, BL-7010, CALY-002, GBR 830, Hu-Mik-Beta-1, IMGX003, KumaMax, Larazotide Acetate, Nexvan2®, pancrelipase, TIMP-GLIA, vedolizumab, and ZED1227.


Non-limiting examples of additional therapeutic agents and/or regimens for treating psoriasis include topical corticosteroids, topical crisaborole/AN2728, topical SNA-120, topical SAN021, topical tapinarof, topical tocafinib, topical IDP-118, topical M518101, topical calcipotriene and betamethasone dipropionate (e.g., MC2-01 cream and Taclonex®), topical P-3073, topical LEO 90100 (Enstilar®), topical betamethasone dipropriate (Sernivo®), halobetasol propionate (Ultravate®), vitamin D analogues (e.g., calcipotriene (Dovonex®) and calcitriol (Vectical®)), anthralin (e.g., Dritho-scalp® and Dritho-crème®), topical retinoids (e.g., tazarotene (e.g., Tazorac® and Avage®)), calcineurin inhibitors (e.g., tacrolimus (Prograf®) and pimecrolimus (Elidel®)), salicylic acid, coal tar, moisturizers, phototherapy (e.g., exposure to sunlight, UVB phototherapy, narrow band UVB phototherapy, Goeckerman therapy, psoralen plus ultraviolet A (PUVA) therapy, and excimer laser), retinoids (e.g., acitretin (Soriatane®)), methotrexate (Trexall®, Otrexup®, Rasuvo®, Rheumatrex®), Apo805K1, baricitinib, FP187, KD025, prurisol, VTP-43742, XP23829, ZPL-389, CF101 (piclidenoson), LAS41008, VPD-737 (serlopitant), upadacitinib (ABT-494), aprmilast, tofacitibin, cyclosporine (Neoral®, Sandimmune®, Gengraf®), biologics (e.g., etanercept (Enbrel®), entanercept-szzs (Elrezi®), infliximab (Remicade®), adalimumab (Humira®), adalimumab-adbm (Cyltezo®), ustekinumab (Stelara®), golimumab (Simponi®), apremilast (Otezla®), secukinumab (Cosentyx®), certolixumab pegol, secukinumab, tildrakizumab-asmn, infliximab-dyyb, abatacept, ixekizumab (Taltz®), ABP 710, BCD-057, BI695501, bimekizumab (UCB4940), CHS-1420, GP2017, guselkumab (CNTO 1959), HD203, M923, MSB11022, Mirikizumab (LY3074828), PF-06410293, PF-06438179, risankizumab (BI655066), SB2, SB4, SB5, siliq (brodalumab), namilumab (MT203, tildrakizumab (MK-3222), and ixekizumab (Taltz®)), thioguanine, and hydroxyurea (e.g., Droxia® and Hydrea®).


Non-limiting examples of additional therapeutic agents and/or regimens for treating cutaneous T-cell lymphoma include phototherapy (e.g., exposure to sunlight, UVB phototherapy, narrow band UVB phototherapy, Goeckerman therapy, psoralen plus ultraviolet A (PUVA) therapy, and excimer laser), extracorporeal photopheresis, radiation therapy (e.g., spot radiation and total skin body electron beam therapy), stem cell transplant, corticosteroids, imiquimod, bexarotene gel, topical bis-chloroethyl-nitrourea, mechlorethamine gel, vorinostat (Zolinza®), romidepsin (Istodax®), pralatrexate (Folotyn®) biologics (e.g., alemtuzumab (Campath®), brentuximab vedotin (SGN-35), mogamulizumab, and IPH4102).


Non-limiting examples of additional therapeutic agents and/or regimens for treating uveitis include corticosteroids (e.g., intravitreal triamcinolone acetonide injectable suspensions), antibiotics, antivirals (e.g., acyclovir), dexamethasone, immunomodulators (e.g., tacrolimus, leflunomide, cyclophosphamide (Cytoxan®, Neosar®, Endoxan®), and cyclosporine (Neoral®, Sandimmune®, Gengraf®), chlorambucil, azathioprine, methotrexate, and mycophenolate mofetil), biologics (e.g., infliximab (Remicade®), adalimumab (Humira®), etanercept (Enbrel®), golimumab (Simponi®), certolizumab (Cimzia®), rituximab (Rituxan®), abatacept (Orencia®), basiliximab (Simulect®), anakinra (Kineret®), canakinumab (Ilaris®), gevokixumab (XOMA052), tocilizumab (Actemra®), alemtuzumab (Campath®), efalizumab (Raptiva®), LFG316, sirolimus (Santen®), abatacept, sarilumab (Kevzara®), and daclizumab (Zenapax®)), cytotoxic drugs, surgical implant (e.g., fluocinolone insert), and vitrectomy.


on-limiting examples of additional therapeutic agents and/or regimens for treating mucositis include AG013, SGX942 (dusquetide), amifostine (Ethyol®), cryotherapy, cepacol lonzenges, capsaicin lozenges, mucoadhesives (e.g., MuGard®) oral diphenhydramine (e.g., Benadry® elixir), oral bioadherents (e.g., polyvinylpyrrolidone-sodium hyaluronate gel (Gelclair®)), oral lubricants (e.g., Oral Balance®), caphosol, Chamomilla recutita mouthwash, edible grape plant exosome, antiseptic mouthwash (e.g., chlorhexidine gluconate (e.g., Peridex® or Periogard®), topical pain relievers (e.g., lidocaine, benzocaine, dyclonine hydrochloride, xylocaine (e.g., viscous xylocaine 2%), and Ulcerease® (0.6% phenol)), corticosteroids (e.g., prednisone), pain killers (e.g., ibuprofen, naproxen, acetaminophen, and opioids), GC4419, palifermin (keratinocyte growth factor; Kepivance®), ATL-104, clonidine lauriad, IZN-6N4, SGX942, rebamipide, nepidermin, soluble β-1,3/1,6 glucan, P276, LP-0004-09, CR-3294, ALD-518, IZN-6N4, quercetin, granules comprising Vaccinium myrtillus extract, macleaya cordata alkaloids and Echinacea angustifolia extract (e.g., SAMITAL®), and gastrointestinal cocktail (an acid reducer such aluminum hydroxide and magnesium hydroxide (e.g., Maalox), an antifungal (e.g., nystatin), and an analgesic (e.g., hurricane liquid)). For example, non-limiting examples of treatments for oral mucositis include AG013, amifostine (Ethyol®), cryotherapy, cepacol lonzenges, mucoadhesives (e.g., MuGard®) oral diphenhydramine (e.g., Benadry® elixir), oral bioadherents (e.g., polyvinylpyrrolidone-sodium hyaluronate gel (Gelclair®)), oral lubricants (e.g., Oral Balance®), caphosol, Chamomilla recutita mouthwash, edible grape plant exosome, antiseptic mouthwash (e.g., chlorhexidine gluconate (e.g., Peridex® or Periogard®), topical pain relievers (e.g., lidocaine, benzocaine, dyclonine hydrochloride, xylocaine (e.g., viscous xylocaine 2%), and Ulcerease® (0.6% phenol)), corticosteroids (e.g., prednisone), pain killers (e.g., ibuprofen, naproxen, acetaminophen, and opioids), GC4419, palifermin (keratinocyte growth factor; Kepivance®), ATL-104, clonidine lauriad, IZN-6N4, SGX942, rebamipide, nepidermin, soluble β-1,3/1,6 glucan, P276, LP-0004-09, CR-3294, ALD-518, IZN-6N4, quercetin, and gastrointestinal cocktail (an acid reducer such aluminum hydroxide and magnesium hydroxide (e.g., Maalox), an antifungal (e.g., nystatin), and an analgesic (e.g., hurricane liquid)). As another example, non-limiting examples of treatments for esophageal mucositis include xylocaine (e.g., gel viscous Xylocaine 2%). As another example, treatments for intestinal mucositis, treatments to modify intestinal mucositis, and treatments for intestinal mucositis signs and symptoms include gastrointestinal cocktail (an acid reducer such aluminum hydroxide and magnesium hydroxide (e.g., Maalox), an antifungal (e.g., nystatin), and an analgesic (e.g., hurricane liquid)).


In certain embodiments, the second therapeutic agent or regimen is administered to the subject prior to contacting with or administering the chemical entity (e.g., about one hour prior, or about 6 hours prior, or about 12 hours prior, or about 24 hours prior, or about 48 hours prior, or about 1 week prior, or about 1 month prior).


In other embodiments, the second therapeutic agent or regimen is administered to the subject at about the same time as contacting with or administering the chemical entity. By way of example, the second therapeutic agent or regimen and the chemical entity are provided to the subject simultaneously in the same dosage form. As another example, the second therapeutic agent or regimen and the chemical entity are provided to the subject concurrently in separate dosage forms.


In still other embodiments, the second therapeutic agent or regimen is administered to the subject after contacting with or administering the chemical entity (e.g., about one hour after, or about 6 hours after, or about 12 hours after, or about 24 hours after, or about 48 hours after, or about 1 week after, or about 1 month after).


Patient Selection


In some embodiments, the methods described herein further include the step of identifying a subject (e.g., a patient) in need of such treatment (e.g., by way of biopsy, endoscopy, or other conventional method known in the art). In certain embodiments, the STING protein can serve as a biomarker for certain types of cancer, e.g., colon cancer and prostate cancer. In other embodiments, identifying a subject can include assaying the patient's tumor microenvironment for the absence of T-cells and/or presence of exhausted T-cells, e.g., patients having one or more cold tumors. Such patients can include those that are resistant to treatment with checkpoint inhibitors. In certain embodiments, such patients can be treated with a chemical entity herein, e.g., to recruit T-cells into the tumor, and in some cases, further treated with one or more checkpoint inhibitors, e.g., once the T-cells become exhausted.


In some embodiments, the chemical entities, methods, and compositions described herein can be administered to certain treatment-resistant patient populations (e.g., patients resistant to checkpoint inhibitors; e.g., patients having one or more cold tumors, e.g., tumors lacking T-cells or exhausted T-cells).


Compound Preparation


As can be appreciated by the skilled artisan, methods of synthesizing the compounds of the formulae herein will be evident to those of ordinary skill in the art. Synthetic chemistry transformations and protecting group methodologies (protection and deprotection) useful in synthesizing the compounds described herein are known in the art and include, for example, those such as described in R. Larock, Comprehensive Organic Transformations, VCH Publishers (1989); T. W. Greene and RGM. Wuts, Protective Groups in Organic Synthesis, 2d. Ed., John Wiley and Sons (1991); L. Fieser and M. Fieser, Fieser and Fieser's Reagents for Organic Synthesis, John Wiley and Sons (1994); and L. Paquette, ed., Encyclopedia of Reagents for Organic Synthesis, John Wiley and Sons (1995), and subsequent editions thereof. The starting materials used in preparing the compounds of the invention are known, made by known methods, or are commercially available. The skilled artisan will also recognize that conditions and reagents described herein that can be interchanged with alternative art-recognized equivalents. For example, in many reactions, triethylamine can be interchanged with other bases, such as non-nucleophilic bases (e.g. diisopropylamine, 1,8-diazabicycloundec-7-ene, 2,6-di-tert-butylpyridine, or tetrabutylphosphazene).


The skilled artisan will recognize a variety of analytical methods that can be used to characterize the compounds described herein, including, for example, 1H NMR, heteronuclear NMR, mass spectrometry, liquid chromatography, and infrared spectroscopy. The foregoing list is a subset of characterization methods available to a skilled artisan and is not intended to be limiting.


To further illustrate the foregoing, the following non-limiting, exemplary synthetic schemes are included. Variations of these examples within the scope of the claims are within the purview of one skilled in the art and are considered to fall within the scope of the invention as described, and claimed herein. The reader will recognize that the skilled artisan, provided with the present disclosure, and skill in the art is able to prepare and use the invention without exhaustive examples.


EXAMPLES












Abbreviations
















Ac = acetyl
LC-MS = liquid



chromatography-mass



spectrometry


ACN = acetonitrile
Me = methyl


Bu = butyl
NMR = nuclear magnetic



resonance


DAST = diethylaminosulphur trifluoride
NMM = N-



methylmorpholine


DBH = 1,3-dibromo-5,5-dimethylhydantoin
PyBOP = Benzotriazole-1-



yl-



oxytripyrrolidinophosphonium



hexafluorophosphate


DCM = dichloromethane
RT = retention time


DIAD = Diisopropylazodicarboxylate
TEA = triethylamine


DIEA = N,N-diisopropylethylamine
THF = tetrahydrofuran


DMF = N,N-dimethylformamide
T3P = 2,4,6-tripropyl-2,4,6-



trioxo-1,3,5,2,4,6-



trioxatriphosphorinane


DMSO = dimethyl sulfoxide
TEA = triethylamine


DPPA = diphenyl azidophosphate
HATU = N-



[(Dimethylamino)-1H-1,2,3-



triazolo-[4,5-b]pyridin-1-



ylmethylene]-N-



methylmethanaminium



hexafluorophosphate N-



oxide


Dppf = bis(diphenylphosphino)ferrocene
HPLC = high-performance



liquid chromatography


FA = formic acid
LCMS = liquid



chromatography-mass



spectrometry


HATU = 2-(7-azaenzotriazol-1-yl)-N,N,N′,N′-tetramethyluronium
DIEA = N-ethyl-N-


hexafluorophosphate
isopropylpropan-2-amine


HPLC = high performance liquid chromatography
TFA = trifluoroacetic acid


AIBN = azodiisobutyronitrile; azobisisobutyronitrile
Speedvac = Savant


BINAP = (±)-2,2′-Bis(diphenylphosphino)-1,1′-BINAPhthyl
SC250EXP SpeedVac


BrettPhos = dicyclohexyl[3,6-dimethoxy-2′,4′,6′-tris(1-methylethyl)[1,1′-
Concentrator


biphenyl]-2-yl]phosphine
Boc20 = di-tert-butyl


DCC = N,N′-dicyclohexylcarbodiimide
pyrocarbornate


DMAP = Dimethylaminopyridine
BzCl = benzoyl chloride


Et = ethyl
DCE = dichloroethane



EDC = 1-Ethyl-3-(3-



dimethylaminopropyl)



carbodiimide hydrochloride



HOBt = 1-



Hydroxybenzotriazole


Ir[dF(CF3)ppy]2(dtbpy)PF6 = Iridium(1+), [4,4′-bis(1,1-dimethylethyl)-
LDA = lithium


2,2′-bipyridine-κN1,κN1′]bis[3,5-difluoro-2-[5-(trifluoromethyl)-2-
diisopropylamide


pyridinyl-κN]phenyl-κC]-, (OC-6-33)-, hexafluorophosphate(1-) (1:1)
NBS = N-


MsCl = methanesulfonyl chloride
Bromosuccinimide


PPh3 = triphenylphosphine
RuPhos = 2-


Selectfluor = 1-Chloromethyl-4-fluoro-1,4-diazoniabicyclo[2.2.2]octane
dicyclohexylphosphino-


bis(tetrafluoroborate)
2′,6′-diisopropoxy-1,1′-


TBDPSCl = tert-butylchlorodiphenylsilane
biphenyl


TMS = tetramethylsilane
TBAF =



Tetrabutylammonium



fluoride



Tf =



trifluoromethanesulfonyl



XPhos = (2-(2,4,6-



triisopropylphenethyl)phenyl)



dicyclohexylphosphine









Materials and Methods


The LC-MS was recorded using one of the following methods.


LCMS Method A: Kinetex EVO C18 100A, 30 *3 mm, 0.5 μL injection, 1.2 mL/min flowrate, 90-900 amu scan range, 254 nm UV detection. Mobile Phase A (MPA): Water/5 mM NH4HCO3 and Mobile Phase B (MPB): Acetonitrile. Elution 10% MPB to 95% in 2.0 min, hold at 95% MPB for 0.3 min, 95% MPB to 10% in 0.1 min.


LCMS Method B: XBridge Shield RP18, 50 *4.6 mm, 0.5 μL injection, 1.2 mL/min flowrate, 90-900 amu scan range, 254 nm UV detection. Mobile Phase A (MPA): Water/0.04% NH4OH and Mobile Phase B (MPB): Acetonitrile. Elution 10% MPB to 95% in 2.00 min, hold at 95% MPB for 0.79 min, 95% MPB to 10% in 0.06 min, then equilibration to 10% MPB for 0.15 min.


LCMS Method C: Shim-pack XR-ODS, 50 *3 mm, 0.3 μL injection, 1.2 mL/min flowrate, 30-2000 amu scan range, 254 nm UV detection. Mobile Phase A (MPA): Water/0.05 TFA and Mobile Phase B (MPB): Acetonitrile/0.05% TFA. Elution 5% MPB to 100% in 1.10 min, hold at 100% MPB for 0.60 min, 100% MPB to 5% in 0.05 min, then equilibration to 5% MPB for 0.25 min.


LCMS Method D: Kinetex 2.6 μm EVO C18 100A, 50 *3 mm, 0.6 μL injection, 1.2 mL/min flowrate, 30-2000 amu scan range, 254 nm UV detection. Mobile Phase A (MPA): Water/5 mM NH4HCO3 and Mobile Phase B (MPB): Acetonitrile. Elution 10% MPB to 95% in 1.20 min, hold at 95% MPB for 0.50 min, 95% MPB to 10% in 0.05 min, then equilibration to 10% MPB for 0.10 min.


LCMS Method E: EVO C18, 50 *3 mm, 0.1 μL injection, 1.2 mL/min flowrate, 30-2000 amu scan range, 254 nm UV detection. Mobile Phase A (MPA): Water/5 mM NH4HCO3 and Mobile Phase B (MPB): Acetonitrile. Elution 10% MPB to 95% in 2.00 min, hold at 95% MPB for 0.60 min, 95% MPB to 10% in 0.15 min, then equilibration to 10% MPB for 0.25 min.


LCMS Method F: Titank C18, 50 *3 mm, 0.5 μL injection, 1.5 mL/min flowrate, 30-2000 amu scan range, 254 nm UV detection. Mobile Phase A (MPA): Water/5 mM NH4HCO3 and Mobile Phase B (MPB): Acetonitrile. Elution 10% MPB to 95% in 1.80 min, hold at 95% MPB for 0.80 min, 95% MPB to 10% in 0.15 min, then equilibration to 10% MPB for 0.25 min.


LCMS Method G: XBridge BEH C18, 50 *3 mm, 4.0 μL injection, 1.2 mL/min flowrate, 30-2000 amu scan range, 254 nm UV detection. Mobile Phase A (MPA): Water/5 mM NH4HCO3 and Mobile Phase B (MPB): Acetonitrile. Elution 5% MPB to 95% in 2.00 min, hold at 95% MPB for 0.70 min, 95% MPB to 5% in 0.05 min, then equilibration to 5% MPB for 0.25 min.


LCMS Method H: XBridge BEH C18, 50 *3 mm, 4.0 μL injection, 1.2 mL/min flowrate, 30-2000 amu scan range, 254 nm UV detection. Mobile Phase A (MPA): Water/5 mM NH4HCO3 and Mobile Phase B (MPB): Acetonitrile. Elution 5% MPB to 95% in 2.00 min, hold at 95% MPB for 0.70 min, 95% MPB to 5% in 0.05 min, then equilibration to 5% MPB for 0.25 min.


LCMS Method I: HALOC18, 30 *3 mm, 0.5 μL injection, 1.5 mL/min flowrate, 30-2000 amu scan range, 254 nm UV detection. Mobile Phase A (MPA): Water/0.05% TFA and Mobile Phase B (MPB): Acetonitrile/0.05% TFA. Elution 5% MPB to 100% in 1.20 min, hold at 100% MPB for 0.60 min, 100% MPB to 5% in 0.02 min, then equilibration to 5% MPB for 0.18 min.


Method BA


Instrument: Agilent LCMS system equipped with DAD and ELSD detector


Ion mode: Positive


Column: Waters X-Bridge C18, 50*2.1 mm*5 m or equivalent


Mobile Phase: A: H2O (0.04% TFA); B: CH3CN (0.02% TFA)


Gradient: 4.5 min gradient method, actual method would depend on clogP of compound.


Flow Rate: 0.6 mL/min or 0.8 mL/min


Column Temp: 40° C. or 50° C.


UV: 220 nm


Method BB


Instrument: Agilent LCMS system equipped with DAD and ELSD detector


Ion mode: Positive


Column: Waters X-Bridge ShieldRP18, 50*2.1 mm*5 m or equivalent


Mobile Phase:A: H2O (0.05% NH40H) or 10 mM ammonia bicarbonate; B: CH3CN


Gradient: 4.5 min gradient method; actual method would depend on the clogP of the compound.


Flow Rate: 0.6 mL/min or 0.8 mL/min


Column Temp: 40° C.


UV: 220 nm


LCMS Method A-1: Kinetex EVO C18 100A, 30*3 mm, 0.5 μL injection, 1.2 mL/min flowrate, 90-900 amu scan range, 254 nm UV detection. Mobile Phase A (MPA): Water/5 mM NH4HCO3 and Mobile Phase B (MPB): Acetonitrile. Elution 10% MPB to 95% in 2.00 min, hold at 95% MPB for 0.30 min, 95% MPB to 10% in 0.10 min.


LCMS Method B-1: Xselect CSH C18, 50*3 mm, 1.0 μL injection, 1.2 mL/min flowrate, 90-900 amu scan range, 254 nm UV detection. Mobile Phase A (MPA): Water/0.1% FA and Mobile Phase B (MPB): Acetonitrile/0.1% FA. Elution 5% MPB to 100% in 2.00 min, hold at 100% MPB for 0.70 min, 100% MPB to 5% in 0.05 min, then equilibration to 5% MPB for 0.15 min.


LCMS Method C-1: XBridge Shield RP18, 50*4.6 mm, 0.5 μL injection, 1.2 mL/min flowrate, 90-900 amu scan range, 254 nm UV detection. Mobile Phase A (MPA): Water/0.04% NH3·H2O and Mobile Phase B (MPB): Acetonitrile. Elution 10% MPB to 95% in 2.00 min, hold at 95% MPB for 0.79 min, 95% MPB to 10% in 0.06 min, then equilibration to 10% MPB for 0.15 min.


LCMS Method D-1: Shim-pack Scepter C18-120, 33*3 mm, 0.5 μL injection, 1.5 mL/min flowrate, 30-2000 amu scan range, 254 nm UV detection. Mobile Phase A (MPA): Water/5 mM NH4HCO3 and Mobile Phase B (MPB): Acetonitrile. Elution 50% MPB to 95% in 2.00 min, hold at 95% MPB for 0.60 min, 95% MPB to 10% in 0.05 min, then equilibration to 10% MPB for 0.25 min.


LCMS Method E-1: kinetex 2.6 μm EVO, 50*3 mm, 0.5 μL injection, 1.2 mL/min flowrate, 30-2000 amu scan range, 254 nm UV detection. Mobile Phase A (MPA): Water/5 mM NH4HCO3 and Mobile Phase B (MPB): Acetonitrile. Elution 10% MPB to 95% in 2.00 min, hold at 95% MPB for 0.70 min, 95% MPB to 10% in 0.05 min, then equilibration to 10% MPB for 0.25 min.


LCMS Method F-1: HALOC18, 30*3 mm, 0.5 μL injection, 1.5 mL/min flowrate, 30-2000 amu scan range, 254 nm UV detection. Mobile Phase A (MPA): Water/0.05% TFA and Mobile Phase B (MPB): Acetonitrile/0.05% TFA. Elution 5% MPB to 100% in 1.20 min, hold at 100% MPB for 0.60 min, 100% MPB to 5% in 0.02 min, then equilibration to 5% MPB for 0.18 min.


LCMS Method G-1: HALOC18, 30*3 mm, 0.5 μL injection, 1.5 mL/min flowrate, 30-2000 amu scan range, 254 nm UV detection. Mobile Phase A (MPA): Water/0.1% FA and Mobile Phase B (MPB): Acetonitrile/0.1% FA. Elution 5% MPB to 100% in 1.20 min, hold at 100% MPB for 0.60 min, 100% MPB to 5% in 0.02 min, then equilibration to 5% MPB for 0.18 min.


LCMS Method H-1: HPH-C18, 50*3 mm, 0.5 μL injection, 1.5 mL/min flowrate, 30-2000 amu scan range, 254 nm UV detection. Mobile Phase A (MPA): Water/0.04% NH40H and Mobile Phase B (MPB): Acetonitrile. Elution 10% MPB to 95 u % in 2.00 min, hold at 95% MPB for 0.70 min, 95% MPB to 10% in 0.05 min, then equilibration to 10% MPB for 0.25 min.


NMR was recorded on BRUKER NMR 300.03 Mz, DUL-C-H, ULTRASHIELD™ 300, AVANCE II 300 B-ACS™ 120 or BRUKER NMR 400.13 Mz, BBFO, ULTRASHIELD™ 400, AVANCE III 400, B-ACS™ 120.


Prep. HPLC Condition


Instrument:


1. GILSON 281 and Shimadzu LCMS 2010A


2. GILSON 215 and Shimadzu LC-20AP


3. GILSON 215


Mobile Phase:


A: NH4OH/H2O=0.05% v/v; B: ACN


A: FA/H2O=0.225% v/v; B: ACN


Column


Xtimate C18 150*25 mm*5 μm


Flow rate: 25 mL/min or 30 mL/min


Monitor wavelength: 220&254 nm


Gradient: actual method would depend on clog P of compound


Detector: MS Trigger or UV


PREPARATIVE EXAMPLES
Synthesis of Intermediate 1 (5-chloro-6-[6,6-difluoro-2-azaspiro[3.3]heptan-2-yl]pyridine-3-carboxylic acid)



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Step 1: methyl 5-chloro-6-[6,6-difluoro-2-azaspiro[3.3]heptan-2-yl]pyridine-3-carboxylate

6,6-Difluoro-2-azaspiro[3.3]heptane (200.0 mg, 1.5 mmol, 1.0 equiv.) and methyl 6-bromo-5-chloropyridine-3-carboxylate(376.3 mg, 1.5 mmol, 1.0 equiv.) were dissolved in ACN (5 mL), then Cs2CO3 (978.9 mg, 3.0 mmol, 2.0 equiv.) was added. The reaction mixture was stirred overnight at 80° C. After filtration and washing the solids with MeOH, the filtrate was concentrated under vacuum. The residue was purified by flash column chromatography on silica gel, eluting with ethyl acetate/petroleum ether (1:3) to give methyl 5-chloro-6-[6,6-difluoro-2-azaspiro[3.3]heptan-2-yl]pyridine-3-carboxylate (180.0 mg) as a white solid. LCMS Method A: [M+H]+=303.


Step 2: 5-chloro-6-[6,6-difluoro-2-azaspiro[3.3]heptan-2-yl]pyridine-3-carboxylic acid

Methyl 5-chloro-6-[6,6-difluoro-2-azaspiro[3.3]heptan-2-yl]pyridine-3-carboxylate (180.0 mg, 0.6 mmol, 1.0 equiv.) was dissolved in MeOH (2 mL) and water (2 mL), then NaOH (47.6 mg, 1.2 mmol, 2.0 equiv.) was added. The reaction mixture was stirred for 2 hours at 80° C. and then concentrated under vacuum. The residue was diluted with water and adjusted to pH 5 with aqueous HCl (6 M). The resulting solid was collected by filtration and washed with water, then dried to give 5-chloro-6-[6,6-difluoro-2-azaspiro[3.3]heptan-2-yl]pyridine-3-carboxylic acid (150.0 mg) as a white solid. LCMS Method A: [M−H]=287.


The following intermediates were prepared using the same method described for Intermediate 1.

















Starting
Starting




Intermediate
material A
material B
Structure
LCMS data



















Intermediate 2


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Method A: MS-ESI: 275 [M − H]





Intermediate 3


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Method A: MS-ESI: 266 [M − H]





Intermediate 4


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Method A: MS-ESI: 225 [M + H]+





Intermediate 5


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Method A: MS-ESI: 261 [M + H]+





Intermediate 6


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Method E MS-ESI: 249 [M + H]+





Intermediate 7


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Method A: MS-ESI: 243 [M + H]+





Intermediate 8


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Method A: MS-ESI: 299 [M + H]+





Intermediate 9


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Method A: MS-ESI: 250 [M + H]+





Intermediate 10


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Method A: MS-ESI: 246 [M + H]+





Intermediate 11


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Method A: MS-ESI: 238 [M + H]+





Intermediate 12


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Method B: MS-ESI: 237 [M + H]+





Intermediate 13


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Method B: MS-ESI: 281 [M + H]+





Intermediate 14


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Method B: MS-ESI: 284 [M + H]+





Intermediate 15


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Method A: MS-ESI: 267 [M + H]+





Intermediate 16


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Method A: MS-ESI: 295 [M + H]+





Intermediate 17


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Method A: MS-ESI: 263 [M + H]+









Synthesis of Intermediate 18 (6-(4,4,4-trifluorobutoxy)pyridine-3-carboxylic acid)



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Methyl 6-fluoropyridine-3-carboxylate (500.0 mg, 3.2 mmol, 1.0 equiv.) was dissolved in THE (20 mL), then t-BuOK (723.3 mg, 6.4 mmol, 2.0 equiv.) and 4,4,4-trifluoro-1-butanol (1.0 g, 8.0 mmol, 2.5 equiv.) were added. The resulting solution was stirred for 16 hours at ambient temperature and then concentrated under vacuum. The residue was diluted with water and washed with ethyl acetate. The aqueous layer was adjusted to pH 2 with aqueous HCl (3 M). The resulting solids were collected by filtration and dried to give 6-(4,4,4-trifluorobutoxy)pyridine-3-carboxylic acid (610 mg) as a white solid. LCMS Method F: [M−H]+=248.


The following intermediates were prepared using the same method described for Intermediate 18.

















Starting
Starting




Intermediate
material A
material B
Structure
LCMS data



















Intermediate 19


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Method A: MS-ESI: 254 [M + H]+









Synthesis of Intermediate 20 (5-(4,4,4-trifluorobutoxy)pyrazine-2-carboxylic acid)



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Step 1: methyl 5-(4,4,4-trifluorobutoxy) pyrazine-2-carboxylate

Methyl 5-bromopyrazine-2-carboxylate (5.0 g, 23.0 mmol, 1.0 equiv.) was dissolved in THF (100 mL), then (4,4,4-trifluorobutoxy) sodium (6.9 g, 46.1 mmol, 2.0 equiv.) was added. The reaction mixture was stirred for 4 hours at ambient temperature, then adjusted to pH 3 with aqueous HCl (1 mol/L). The resulting solution was extracted with ethyl acetate, dried over anhydrous sodium sulfate and concentrated under vacuum. The residue was purified by flash column chromatography on silica gel, eluting with ethyl acetate/petroleum ether (1:1) to give methyl 5-(4,4,4-trifluorobutoxy) pyrazine-2-carboxylate (800 mg) as a white solid. LCMS Method A: [M+H]+=265.


Step 2: 5-(4,4,4-trifluorobutoxy) pyrazine-2-carboxylic acid

Methyl 5-(4,4,4-trifluorobutoxy) pyrazine-2-carboxylate (500.0 mg, 1.9 mmol, 1.0 equiv.) was dissolved in MeOH (5 mL) and water (5 mL), then NaOH (151.4 mg, 3.8 mmol, 2.0 equiv.) wad added. The reaction mixture was heated to 80° C. for 2 hours, then cooled to ambient temperature and concentrated under vacuum. The residue was diluted with water and adjusted to pH 5 with aqueous HCl (6 M). The resulting solid was collected by filtration, washed with water, then dried to give 5-(4,4,4-trifluorobutoxy) pyrazine-2-carboxylic acid (300 mg) as a yellow solid. LCMS Method A: [M−H]=287.


The following intermediates were prepared using the same method described for Intermediate 20.

















Starting
Starting




Intermediate
material A
material B
Structure
LCMS data



















Intermediate 21


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Method B: MS-ESI: 237 [M + H]+









Synthesis of Intermediate 22 (6-(2-methoxyethoxy)nicotinic acid)



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Step 1: methyl 6-(2-methoxyethoxy)pyridine-3-carboxylate

2-Methoxyethanol (422.7 mg, 5.6 mmol, 1.5 equiv.) was dissolved in THE (20 mL) and cooled to 0° C., then NaH (60% wt in mineral oil, 296.2 mg, 7.4 mmol, 2.0 equiv.) was added at 0° C. After 30 min at 0° C., methyl 6-bromopyridine-3-carboxylate (800.0 mg, 3.7 mmol, 1.0 equiv.) was added at 0° C. The resulting solution was stirred overnight at ambient temperature and then quenched by the addition of ice water. The resulting solution was extracted with ethyl acetate, dried over anhydrous sodium sulfate and concentrated under vacuum. The residue was purified by flash column chromatography on silica gel, eluting with ethyl acetate/petroleum ether (1:5) to give methyl 6-(2-methoxyethoxy)pyridine-3-carboxylate (300 mg) as a yellow solid. LCMS Method A: [M+H]+=212.


Step 2: 6-(2-methoxyethoxy)pyridine-3-carboxylic acid

Methyl 6-(2-methoxyethoxy)pyridine-3-carboxylate (300.0 mg, 1.4 mmol, 1.0 equiv.) was dissolved in MeOH (5 mL) and water (5 mL), then LiOH (68.0 mg, 2.8 mmol, 2.0 equiv.) was added. The resulting solution was stirred overnight at ambient temperature. The residue was diluted with water and adjusted to pH 5 with aqueous HCl (6 M). The resulting solid was collected by filtration, washed with water, then dried to give 6-(2-methoxyethoxy)pyridine-3-carboxylic acid (120 mg) as a white solid. LCMS Method A: [M−H]+=196.


Synthesis of Intermediate 23 (3-methyl-4-(4,4,4-trifluorobutoxy) benzoic acid



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Step 1: methyl 3-methyl-4-(4,4,4-trifluorobutoxy) benzoate

Methyl 4-hydroxy-3-methylbenzoate (500.0 mg, 3.0 mmol, 1.0 equiv.) was dissolved in THF (20 mL), then 4,4,4-trifluoro-1-butanol (385.4 mg, 3.0 mmol, 1.0 equiv.) and PPh3 (1183.8 mg, 4.5 mmol, 1.5 equiv.) were added and the reaction mixture was cooled to 0° C. This was followed by the addition of DIAD (912.6 mg, 4.5 mmol, 1.5 equiv.), maintaining the reaction mixture at 0° C. After 6 hours at 0° C., the reaction mixture diluted with 20 mL of ethyl acetate. The resulting solution was washed with brine, and the organic layer dried over anhydrous sodium sulfate and concentrated under vacuum. The residue was purified by flash column chromatography on silica gel, eluting with ethyl acetate/petroleum ether (1:1) to give methyl 3-methyl-4-(4,4,4-trifluorobutoxy) benzoate (300 mg) as a white solid. LCMS Method A: [M+H]+=277.


Step 2: 3-methyl-4-(4,4,4-trifluorobutoxy) benzoic acid

Methyl 3-methyl-4-(4,4,4-trifluorobutoxy) benzoate (300.0 mg, 1.1 mmol, 1.0 equiv.) was dissolved in MeOH (5 mL) and water (5 mL), then NaOH (86.9 mg, 2.2 mmol, 2.0 equiv.) was added. The resulting solution was stirred for 2 hours at 80° C. and then concentrated under vacuum. The residue was diluted with water, then adjusted to pH 5 with aqueous HCl (6 M). The resulting solid was collected by filtration and washed with water, then dried to give 3-methyl-4-(4,4,4-trifluorobutoxy) benzoic acid (160 mg) as a white solid. LCMS Method A: [M+H]+=263.


The following intermediates were prepared using the same method described for Intermediate 23.

















Starting
Starting

LCMS


Intermediate
material A
material B
Structure
data



















Intermediate 24


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Method A: MS-ESI: 250 [M + H]+





Intermediate 25


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Method A: MS-ESI: 227 [M − H]





Intermediate 26


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Method E: MS-ESI: 245 [M − H]





Intermediate 27


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Method G: MS-ESI: 272 [M − H]





Intermediate 28


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Method G: MS-ESI: 281 [M − H]





Intermediate 29


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Method A: MS-ESI: 233 [M − H]





Intermediate 30


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Method A: MS-ESI: 265 [M − H]





Intermediate 31


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Method G: MS-ESI: 251 [M − H]





Intermediate 32


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Method H: MS-ESI: 251 [M − H]−





Intermediate 33


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Method A: MS-ESI: 251 [M − H]−





Intermediate 34


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Method A: MS-ESI: 251 [M − H]−





Intermediate 35


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Method A: MS-ESI: 251 [M − H]−





Intermediate 36


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Method B: MS-ESI: 251 [M − H]−









Synthesis of Intermediate 37 (6-oxo-5-(4-(trifluoromethyl)benzyl)-1,6-dihydropyridazine-3-carboxylic acid)



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6-Oxo-4,5-dihydro-1H-pyridazine-3-carboxylic acid (1.0 g, 7.0 mmol, 1.0 equiv.) was dissolved in MeOH (20 mL), then KOH (789.6 mg, 14.0 mmol, 2.0 equiv.) and 4-(trifluoromethyl)benzaldehyde (1.4 g, 8.4 mmol, 1.2 equiv.) were added. The resulting solution was stirred for 2 hours at 80° C. and concentrated under vacuum. The residue was diluted with water, then adjusted to pH 2 with aqueous HCl (6 M). The resulting solid was collected by filtration and washed with water, then dried to give 6-oxo-5-[[4-(trifluoromethyl)phenyl]methyl]-1H-pyridazine-3-carboxylic acid (2.0 g, 95.3%) as an off-white solid. LCMS Method A: [M+H]+=299.


Synthesis of Intermediate 38 (4-(3,3-difluorocyclobutyl)benzoic acid)



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Step 1: 1-bromo-4-(3,3-difluorocyclobutyl)benzene

3-(4-Bromophenyl)cyclobutan-1-one (1.0 g, 4.4 mmol, 1.0 equiv.) was dissolved in DCM (20 mL), then DAST (716.1 mg, 4.4 mmol, 1.0 equiv.) was added at 0° C. The resulting mixture was stirred for 2 hours at 40° C. and then quenched by the addition of water. The resulting solution was extracted with ethyl acetate, dried over anhydrous sodium sulfate and concentrated under vacuum. The residue was purified by flash column chromatography on silica gel, eluting with ethyl acetate/petroleum ether (1:3) to give 1-bromo-4-(3,3-difluorocyclobutyl)benzene (800 mg) as a yellow solid. 1H NMR (400 MHz, CDCl3): δ 7.46 (d, 2H), 7.12 (d, 2H), 3.90-3.80 (m, 1H), 3.06-2.95 (m, 2H), 2.68-2.59 (m, 2H).


Step 2: 4-(3,3-difluorocyclobutyl)benzoic acid

1-Bromo-4-(3,3-difluorocyclobutyl)benzene (500.0 mg, 2.0 mmol, 1.0 equiv.) was dissolved in THE (20 mL) under an atmosphere of nitrogen, cooled to −78° C., then a solution of n-BuLi in hexane (2.5 M, 1.2 mL, 3.0 mmol, 1.5 equiv.) was added dropwise, maintaining the temperature at −78° C. After 30 min at −78° C., dry-ice (2.0 g, 45.4 mmol, 22.5 equiv.) was added in portions. The resulting solution was stirred for an additional 30 min at −40° C. and then quenched by the addition of 1 M aqueous HCl. The resulting mixture was concentrated under vacuum. The resulting solid was collected by filtration and purified by Flash-Prep-HPLC with the following conditions: Column, C18; mobile phase, ACN/H2O increasing from 20% to 60% within 40 min; Detector, 254 nm. This resulted into 4-(3,3-difluorocyclobutyl)benzoic acid (320 mg) as a yellow solid. LCMS Method A: [M−H]=211.


Synthesis of Intermediate 39 (4-(2-(trifluoromethoxy)ethyl)benzoic acid)



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Step 1: O-(4-bromophenethyl)S-methyl carbonodithioate

2-(4-Bromophenyl)ethan-1-ol (5.0 g, 24.9 mmol, 1.0 equiv.) and imidazole (170.0 mg, 2.5 mmol, 0.1 equiv.) were dissolved in THE (100 mL), then NaH (60% wt in mineral oil, 2.5 g, 62.5 mmol, 2.1 equiv.) was added at 0° C. After 30 min at 0° C., CS2 (3.8 mL, 63.0 mmol, 2.5 equiv.) was added dropwise. The mixture was stirred for 30 min at ambient temperature, then MeI (3.9 mL, 92.6 mmol, 2.5 equiv.) was added. After an additional 30 min, the reaction was quenched by the addition of water. The resulting solution was extracted with ethyl acetate, dried over anhydrous sodium sulfate and concentrated under vacuum. The residue was purified by flash column chromatography on silica gel, eluting with ethyl acetate/petroleum ether (1:3) to give crude O-(4-bromophenethyl)-S-methyl carbonodithioate (7.4 g) as a yellow oil.


Step 2: 1-bromo-4-(2-(trifluoromethoxy)ethyl)benzene

DBH (14.8 g, 51.7 mmol, 3.0 equiv.) was dissolved in DCM (100 mL) and cooled to −78° C. Then HF-Pyridine (70% wt., 17.5 mL, 673.8 mmol, 39.2 equiv.) was added dropwise, maintaining the reaction mixture at −78° C. To the mixture, a solution of O-(4-bromophenethyl)-S-methyl carbonodithioate (5.0 g, 17.2 mmol, 1.0 equiv.) in DCM (10 mL) was added dropwise at −78° C. The resulting solution was stirred for 30 min at 0° C. and then quenched by the addition of ice-water. The reaction mixture was adjusted to pH 10 with saturated aqueous NaHCO3, then extracted with ethyl acetate. The organic layers were dried over anhydrous sodium sulfate and concentrated under vacuum. The residue was purified by flash column chromatography on silica gel, eluting with petroleum ether to give 1-bromo-4-(2-(trifluoromethoxy)ethyl)benzene (3.4 g) as a yellow oil. 1H NMR (400 MHz, DMSO-d6): 7.52 (d, 2H), 7.27 (d, 2H), 4.29 (t, 2H), 2.96 (t, 2H).


Step 3: 4-(2-(trifluoromethoxy)ethyl)benzoic acid

1-Bromo-4-(2-(trifluoromethoxy)ethyl)benzene (2.0 g, 7.4 mmol, 1.0 equiv.) was dissolved in THE (20 mL) under an atmosphere of nitrogen and cooled to 78° C., then a solution of n-BuLi in hexane (2.5 M, 4.5 mL, 11.3 mmol, 1.5 equiv.) was added dropwise, maintaining the reaction mixture at −78° C. After 30 min at −78° C., dry ice (10.0 g, 227.3 mmol, 30.6 equiv.) was added to above solution. The resulting solution was stirred for 30 min at −40° C. and then quenched by the addition of saturated aqueous NH4Cl. The reaction mixture was adjusted to pH 2 with aqueous HCl (6 M), then extracted with ethyl acetate. The organic layers were dried over anhydrous Na2SO4 and concentrated under vacuum to give 4-(2-(trifluoromethoxy)ethyl)benzoic acid (1.5 g) as a yellow solid. LCMS Method A: [M−H]=233.


Synthesis of Intermediate 40 (4-(4,4-difluorocyclohexyl)benzoic acid)



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Step 1: ethyl 4-(4,4-difluorocyclohex-1-en-1-yl)benzoate

Ethyl 4-bromobenzoate (2.0 g, 8.7 mmol, 1.0 equiv.) was dissolved in dioxane (20 mL) and water (2 mL), then 2-(4,4-difluorocyclohex-1-en-1-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (2.3 g, 9.6 mmol, 1.1 equiv.), Cs2CO3 (8.5 g, 26.2 mmol, 3.0 equiv.) and XPhos Pd G3 (739.0 mg, 0.9 mmol, 0.1 equiv.) were added. The reaction mixture was heated to 90° C. overnight, then quenched by the addition of water. The resulting solution was extracted with ethyl acetate and concentrated under vacuum. The residue was purified by flash column chromatography on silica gel, eluting with ethyl acetate/petroleum ether (1:10) to give ethyl 4-(4,4-difluorocyclohex-1-en-1-yl)benzoate (1.9 g) as a yellow solid. LCMS Method A: [M+H]+=267.


Step 2: ethyl 4-(4,4-difluorocyclohexyl)benzoate

Ethyl 4-(4,4-difluorocyclohex-1-en-1-yl)benzoate (1.9 g, 7.1 mmol, 1.0 equiv.) was dissolved in MeOH (30 mL), then Pd/C (10% wt., 200.0 mg) was added. The mixture was sparged with nitrogen, placed under an atmosphere of hydrogen gas (balloon), then stirred overnight at ambient temperature. The solids were removed by filtration and the filtrate was concentrated under vacuum to give ethyl 4-(4,4-difluorocyclohexyl)benzoate (1.6 g) as a yellow oil. LCMS Method A: [M+H]+=269.


Step 3: 4-(4,4-difluorocyclohexyl)benzoic acid

Ethyl 4-(4,4-difluorocyclohexyl)benzoate (1.5 g, 5.6 mmol, 1.0 equiv.) was dissolved in MeOH (10 mL) and H2O (10 mL), then NaOH (447.2 mg, 11.2 mmol, 2.0 equiv.) was added. The resulting solution heated for 3 hours at 80° C. and concentrated under vacuum. The residue was diluted with water then adjusted to pH 6 with aqueous HCl (1 M). The resulting solids were collected by filtration and dried to give 4-(4,4-difluorocyclohexyl)benzoic acid (1.0 g) as a white solid. LCMS Method A: [M−H]=239.


The following intermediates were prepared using the same method described for Intermediate 40.

















Starting
Starting




Intermediate
material A
material B
Structure
LCMS data



















Intermediate 41


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Method A: MS-ESI: 275 [M + H]+





Intermediate 42


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Method A: MS-ESI: 218 [M − H]









Synthesis of Intermediate 43 (5,6-difluoro-1H-indol-3-amine hydrogen chloride)



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Step 1: 5,6-difluoro-3-nitro-1H-indole

5,6-Difluoro-1H-indole (25.0 g, 163.3 mmol, 1.0 equiv.) was dissolved in in ACN (300 mL) and cooled to 0° C., then AgNO3 (33.3 g, 195.9 mmol, 1.2 equiv.) was added under 0° C., the resulting mixture was stirred for 15 min, then benzoyl chloride (27.5 g, 195.9 mmol, 1.2 equiv.) was added batchwise, maintaining the reaction mixture at 0° C. After an additional 3 hours at 0° C. the reaction mixture was quenched by the addition of ice-water. The reaction mixture was adjusted to pH 8 with aqueous NaHCO3, then extracted with DCM and the organic layers concentrated under vacuum. The residue was purified by flash column chromatography on silica gel column, eluting with ethyl acetate/petroleum ether (2:1) to give 5,6-difluoro-3-nitro-1H-indole (24 g) as a brown solid. LCMS Method A: [M+H]+=199.


Step 2: tert-butyl N-(5,6-difluoro-1H-indol-3-yl)carbamate

5,6-Difluoro-3-nitro-1H-indole (24.0 g, 121.1 mmol, 1.0 equiv.) was dissolved in MeOH (300 mL), then Pd/C (10% wt., 2.4 g) and (Boc)2O (39.7 g, 181.7 mmol, 1.5 equiv.) were added under nitrogen. The mixture was sparged with nitrogen, placed under an atmosphere of hydrogen gas (balloon), then stirred overnight at ambient temperature. The solids were removed by filtration and the filtrate was concentrated under vacuum. The residue was purified by flash column chromatography on silica gel column, eluting with ethyl acetate/petroleum ether (1:4) to give tert-butyl N-(5,6-difluoro-1H-indol-3-yl)carbamate (22 g) as a yellow solid. LCMS Method E: [M+H]+=269.


Step 3: 5,6-difluoro-1H-indol-3-amine hydrochloride

tert-Butyl N-(5,6-difluoro-1H-indol-3-yl)carbamate (17.0 g, 63.4 mmol, 1.0 equiv.) was dissolved in HCl/1,4-dioxane (4N, 200 mL). The resulting mixture was stirred for 30 min at ambient temperature and then concentrated under vacuum to give 5,6-difluoro-1H-indol-3-amine hydrochloride (12 g) as a yellow crude solid. LCMS Method E: [M+H]+=169.


The following intermediates were prepared using the same method described for Intermediate 43.















Intermediate
Starting material
Structure
LCMS data







Intermediate 44


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Method B: MS-ESI: 158 [M + H]+





Intermediate 45


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Method B: MS-ESI: 164 [M + H]+





Intermediate 46


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Method B: MS-ESI: 152 [M + H]+





Intermediate 47


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Method B: MS-ESI: 151 [M + H]+





Intermediate 58


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Method B: MS-ESI: 151 [M + H]+









Synthesis of Intermediate 48 (5-fluoro-1H-pyrrolo[2,3-b]pyridin-3-amine hydrogen chloride)



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Step 1: 5-fluoro-1H-pyrrolo[2,3-b]pyridine-3-carbonyl azide

5-Fluoro-1H-pyrrolo[2,3-b]pyridine-3-carboxylic acid (1.0 g, 5.6 mmol, 1.0 equiv.) and DPPA (3.0 g, 11.1 mmol, 2.0 equiv.) were dissolved in THE (10 mL), TEA (1.6 mL, 11.1 mmol, 2.0 equiv.) was added. The resulting mixture was stirred for overnight at ambient temperature and concentrated under vacuum. The residue was diluted with water, extracted with ethyl acetate, dried over anhydrous Na2SO4 and concentrated under vacuum to give 5-fluoro-1H-pyrrolo[2,3-b]pyridine-3-carbonyl azide (900 mg) as a white solid. LCMS Method G: [M+H]+=206.


Step 2: tert-butyl N-[5-fluoro-1H-pyrrolo[2,3-b]pyridin-3-yl]carbamate

5-Fluoro-1H-pyrrolo[2,3-b]pyridine-3-carbonyl azide (300.0 mg, 1.5 mmol, 1.0 equiv.) was added in t-BuOH (8 mL). The resulting mixture was stirred for overnight at 100° C. and then concentrated under vacuum. The residue was purified by flash column chromatography on silica gel column, eluting with ethyl acetate/petroleum ether (1:1) to give tert-butyl N-[5-fluoro-1H-pyrrolo[2,3-b]pyridin-3-yl]carbamate (350 mg) as a yellow solid. LCMS Method G: [M+H]+=251.


Step 3: 5-fluoro-1H-pyrrolo[2,3-b]pyridin-3-amine hydrogen chloride

tert-Butyl N-[5-fluoro-1H-pyrrolo[2,3-b]pyridin-3-yl]carbamate (300.0 mg) was dissolved in HCl/1,4-dioxane (4 M, 10.0 mL). The resulting solution was stirred for overnight at 4 hours at ambient temperature and then concentrated under vacuum to give crude 5-fluoro-1H-pyrrolo[2,3-b]pyridin-3-amine hydrogen chloride (350 mg) as a yellow solid. LCMS Method G: [M+H]+=151.


The following intermediates were prepared using the same method described for Intermediate 48.















Intermediate
Starting material
Structure
LCMS data







Intermediate 49


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Method G: MS-ESI: 158 [M + H]+





Intermediate 50


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Method G: MS-ESI: 167 [M + H]+









Synthesis of Intermediate 51 (5-(1-isopropyl-1H-pyrazol-4-yl)-1H-indol-3-amine hydrogen chloride)



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Step 1: 5-bromo-1H-indole-3-carbonyl azide

5-Bromo-1H-indole-3-carboxylic acid (1.0 g, 4.2 mmol, 1.0 equiv.) was dissolved in THF (10 mL), DPPA (2.3 g, 8.3 mmol, 2.0 equiv.) and TEA (1.8 mL, 12.5 mmol, 3.0 equiv.) were added. The resulting solution was stirred for overnight at ambient temperature and then concentrated under vacuum. The residue was diluted with MeOH and the isolated solids were collected by filtration to give 5-bromo-1H-indole-3-carbonyl azide (900 mg) as a white solid. LCMS Method G: [M+H]+=265.


Step 2: tert-butyl N-(5-bromo-1H-indol-3-yl)carbamate

5-Bromo-1H-indole-3-carbonyl azide (900.0 mg, 3.4 mmol, 1.0 equiv.) was dissolved in t-BuOH (6 mL). The resulting solution was stirred for overnight at 80° C. and concentrated under vacuum. The residue was purified by flash column chromatography on silica gel, eluting with ethyl acetate/petroleum ether (1:1) to give tert-butyl N-(5-bromo-1H-indol-3-yl)carbamate (910 mg) as a yellow solid. LCMS Method G: [M+H]+=311.


Step 3: tert-butyl N-[5-(1-isopropylpyrazol-4-yl)-1H-indol-3-yl]carbamate

tert-Butyl N-(5-bromo-1H-indol-3-yl)carbamate (500.0 mg, 1.6 mmol, 1.0 equiv.) was dissolved in dioxane (6 mL) and water (0.6 mL), then 1-isopropyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazole (417.3 mg, 1.8 mmol, 1.1 equiv.), Xphos Pd G3 (136.0 mg, 0.2 mmol, 0.1 equiv.) and Cs2CO3 (1.0 g, 3.2 mmol, 2.0 equiv.) were added. The solution heated overnight at 100° C., then quenched by the addition of water. The resulting solution was extracted with ethyl acetate and the organic layers concentrated under vacuum. The residue was purified by flash column chromatography on silica gel, eluting with ethyl acetate/petroleum ether (1:1) to give tert-butyl N-[5-(1-isopropylpyrazol-4-yl)-1H-indol-3-yl]carbamate (400 mg) as a white solid. LCMS Method G: [M+H]+=341.


Step 4: 5-(1-isopropylpyrazol-4-yl)-1H-indol-3-amine hydrogen chloride

tert-butyl N-[5-(1-isopropylpyrazol-4-yl)-1H-indol-3-yl]carbamate (400.0 mg, 1.2 mmol, 1.0 equiv.) was dissolved in HCl in 1,4-dioxane (4 M, 8 mL). The resulting solution was stirred for 4 hours at ambient temperature and then concentrated under vacuum to give crude 5-(1-isopropylpyrazol-4-yl)-1H-indol-3-amine hydrogen chloride (400 mg) as a grey solid. LCMS Method G: [M+H]+=241.


Synthesis of Intermediate 52 (3-((4,4,4-trifluorobutyl)amino)benzoic acid)



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Step 1: methyl 3-[(4,4,4-trifluorobutyl)amino]benzoate

Methyl 3-bromobenzoate (300.0 mg, 1.4 mmol, 1.0 equiv.) and 4,4,4-trifluorobutan-1-amine (177.3 mg, 1.4 mmol, 1.0 equiv.) were dissolved in 1,4-dioxane (5 mL), then Cs2CO3 (1.4 g, 4.2 mmol, 3.0 equiv.) and XPhos Pd G3 (118.1 mg, 0.1 mmol, 0.1 equiv.) were added under an atmosphere of nitrogen. The reaction mixture was heated to 100° C. overnight, then cooled to ambient temperature and quenched by the addition of water. The resulting mixture was extracted with ethyl acetate, washed with brine, dried over anhydrous Na2SO4 and concentrated under vacuum. The residue was purified by flash column chromatography on silica gel, eluting with ethyl acetate/petroleum ether (1:2) to give methyl 3-[(4,4,4-trifluorobutyl)amino]benzoate (250 mg) as a yellow solid. LCMS Method G: [M+H]+=262.


Step 2: 3-[(4,4,4-trifluorobutyl)amino]benzoic acid

Methyl 3-[(4,4,4-trifluorobutyl)amino]benzoate (250.0 mg, 1.0 mmol, 1.0 equiv.) was dissolved in MeOH (2 mL) and water (2 mL), then NaOH (76.6 mg, 1.9 mmol, 2.0 equiv.) was added. The reaction mixture was heated to 80° C. for 2 hours, then cooled to ambient temperature and concentrated under vacuum. The residue was diluted with water then adjusted to pH 6 with aqueous HCl (1 M). The resulting solids were collected by filtration, washed with water and dried to give 3-[(4,4,4-trifluorobutyl)amino]benzoic acid (200 mg) as a white solid. LCMS Method A: [M−H]=246.


The following intermediates were prepared using the same method described for Intermediate 52.
















Starting

LCMS


Intermediate
material
Structure
data







Intermediate 53


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Method E: MS-ESI: 257 [M + H]+









Synthesis of Intermediate 54 (4-(2,2-difluoroethoxy)benzoic acid)



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Step 1: ethyl 4-(2,2-difluoroethoxy)benzoate

Ethylparaben (1.0 g, 6.0 mmol, 1.0 equiv.) and 2-bromo-1,1-difluoroethane (872.3 mg, 6.0 mmol, 1.0 equiv.) were dissolved in DMF (8 mL), then K2CO3 (2.5 g, 18.1 mmol, 3.0 equiv.) was added in portions. The reaction mixture was heated to 80° C. overnight. After filtration and washing the solids with MeOH, the filtrate was concentrated under vacuum. The residue was purified by flash column chromatography on silica gel, eluting with ethyl acetate/petroleum ether (1: 10-1:3) to give ethyl 4-(2,2-difluoroethoxy)benzoate (700 mg) as a white solid.


Step 2: 4-(2,2-difluoroethoxy)benzoic acid

Ethyl 4-(2,2-difluoroethoxy)benzoate (700.0 mg, 3.0 mmol, 1.0 equiv.) was dissolved in MeOH (2 mL) and water (2 mL), then LiOH (145.6 mg, 6.1 mmol, 2.0 equiv.) was added. The reaction mixture was heated to 80° C. for 2 hours, then cooled to ambient temperature and concentrated under vacuum. The residue was diluted with water then adjusted to pH 6 with aqueous HCl (1 M). The resulting solids were collected by filtration, washed with water and dried to give 4-(2,2-difluoroethoxy)benzoic acid (350 mg) as a white solid. LCMS Method A: [M+H]+=203.


Synthesis of Intermediate 55 (3-fluoro-4-(3,3,3-trifluoropropyl)benzoic acid)



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Step 1: methyl 3-fluoro-4-[(1Z)-3,3,3-trifluoroprop-1-en-1-yl]benzoate

Methyl 4-bromo-3-fluorobenzoate (1.0 g, 4.3 mmol, 1.0 equiv.) and 3,3,3-trifluoro-1-propene (0.8 g, 8.6 mmol, 2.0 equiv.) were dissolved in DMF (15 mL), then Pd(OAc)2 (96.3 mg, 0.4 mmol, 0.1 equiv.) and NaOAc (0.7 g, 8.6 mmol, 2.0 equiv.) were added under an atmosphere of nitrogen. The resulting mixture was heated to 100° C. overnight, then cooled to ambient temperature and quenched by the addition of water. The resulting solution was extracted with ethyl acetate, dried over anhydrous sodium sulfate and concentrated under vacuum. The residue was purified by flash column chromatography on silica gel, eluting with ethyl acetate/petroleum ether (1:1) to give methyl 3-fluoro-4-[(1Z)-3,3,3-trifluoroprop-1-en-1-yl]benzoate (400 mg) as a yellow oil. 1H NMR (400 MHz, CDCl3): δ 7.88-7.85 (m, 1H), 7.78-7.76 (m, 1H), 7.72-7.70 (m, 1H), 7.28-7.26 (m, 1H), 6.52-6.48 (m, 1H), 3.96 (s, 3H),


Step 2: methyl 3-fluoro-4-(3,3,3-trifluoropropyl)benzoate

Methyl 3-fluoro-4-[(1Z)-3,3,3-trifluoroprop-1-en-1-yl]benzoate (400.0 mg, 1.6 mmol, 1.0 equiv.) was dissolved in MeOH (10 mL), then Pd/C (10% wt., 51.5 mg) was added. The mixture was sparged with nitrogen, placed under an atmosphere of hydrogen gas (balloon), then stirred overnight at ambient temperature. The solids were removed by filtration and the filtrate was concentrated under vacuum. The residue was purified by flash column chromatography on silica gel, eluting with ethyl acetate/petroleum ether (1:10) to give methyl 3-fluoro-4-(3,3,3-trifluoropropyl)benzoate (100 mg) as a yellow solid. 1H NMR (400 MHz, CDCl3): δ 7.73-7.69 (m, 2H), 7.55-7.52 (m, 1H), 3.92 (s, 3H), 2.96-2.94 (m, 2H), 2.46-2.41 (m, 2H).


Step 3: 3-fluoro-4-(3,3,3-trifluoropropyl)benzoic acid

Methyl 3-fluoro-4-(3,3,3-trifluoropropyl)benzoate (100.0 mg, 0.4 mmol, 1.0 equiv.) was dissolved in MeOH (2 mL) and water (2 mL), then LiOH (19.1 mg, 0.8 mmol, 2.0 equiv.) was added. The reaction mixture was stirred overnight at ambient temperature and concentrated under vacuum. The residue was diluted with water then adjusted to pH 5 with aqueous HCl (6 M). The resulting solids were collected by filtration, washed with water and dried to give 3-fluoro-4-(3,3,3-trifluoropropyl)benzoic acid (50 mg) as a white solid. LCMS Method A: [M−H]=235.


Synthesis of Intermediate 56 (4-(4,4-difluoro-1-hydroxycyclohexyl)benzoic acid)



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Step 1: methyl 4-(4,4-difluoro-1-hydroxycyclohexyl)benzoate

Methyl 4-iodobenzoate (500.0 mg, 1.9 mmol, 1.0 equiv.) was dissolved in THE (15 mL) and cooled to −40° C., then i-PrMgCl—LiCl (1.3 M in THF, 2.2 mL, 2.9 mmol, 1.5 equiv.) was added dropwise, maintaining the mixture at −40° C. while under an atmosphere of nitrogen. After stirring for 1 hour at −40° C., 4-difluorocyclohexan-1-one (383.9 mg, 2.9 mmol, 1.5 equiv.) was added. The resulting mixture was stirred overnight at ambient temperature and then quenched by the addition of saturated aqueous NH4Cl. The resulting solution was extracted with ethyl acetate and concentrated under vacuum. The residue was purified by flash column chromatography on silica gel, eluting with ethyl acetate/petroleum ether (1:2) to give methyl 4-(4,4-difluoro-1-hydroxycyclohexyl)benzoate (350 mg) as a colorless oil. LCMS Method A: [M+H]+=271.


Step 2: 4-(4,4-difluoro-1-hydroxycyclohexyl)benzoic acid

Methyl 4-(4,4-difluoro-1-hydroxycyclohexyl)benzoate (300.0 mg, 1.1 mmol, 1.0 equiv.) was dissolved in MeOH (5 mL) and water (5 mL), then NaOH (22 mg, 5.5 mmol, 5.0 equiv.) was added. The resulting mixture was stirred for 2 hours at ambient temperature, the concentrated under vacuum. The residue was diluted with water then adjusted to pH 6 with aqueous HCl (2 M). The resulting solids were collected by filtration, then purified by flash column chromatography on silica gel, eluting with dichloromethane/methanol (94:6) to give 4-(4,4-difluoro-1-hydroxycyclohexyl)benzoic acid (200 mg) as a white solid. LCMS Method A: [M−H]+=255.


Synthesis of Intermediate 57 (2-oxo-1-(4-(trifluoromethyl)benzyl)-1,2-dihydropyrimidine-4-carboxylic acid)



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Step 1: Methyl 2-oxo-1-[[4-(trifluoromethyl)phenyl]methyl]pyrimidine-4-carboxylate

Methyl 2-oxo-1H-pyrimidine-4-carboxylate (500.0 mg, 3.2 mmol, 1.0 equiv.) and 1-(bromomethyl)-4-(trifluoromethyl)benzene (775.5 mg, 3.2 mmol, 1.0 equiv.) were dissolved in DMSO (30 mL), then DIEA (2.7 mL, 16.2 mmol, 5.0 equiv.) was added. The reaction mixture was heated to 100° C. for 16 hours, then cooled to ambient temperature and quenched by the addition of water. The resulting mixture was extracted with ethyl acetate, washed with brine, dried over anhydrous Na2SO4 and concentrated under vacuum. The residue was purified by flash column chromatography on silica gel, eluting with ethyl acetate/petroleum ether (1:1) to give methyl 2-oxo-1-[[4-(trifluoromethyl)phenyl]methyl]pyrimidine-4-carboxylate (556 mg) as a yellow solid. LCMS Method G: [M+H]+=313.


Step 2: 2-oxo-1-(4-(trifluoromethyl)benzyl)-1,2-dihydropyrimidine-4-carboxylic acid

2-Oxo-1-[[4-(trifluoromethyl)phenyl]methyl]pyrimidine-4-carboxylate (556.0 mg, 1.8 mmol, 1.0 equiv.) was dissolved in MeOH (15 mL) and water (5 mL), then NaOH (142.4 mg, 3.6 mmol, 2.0 equiv.) was added. The resulting mixture was stirred for 2 hours at ambient temperature, and then concentrated under vacuum. The residue was diluted with water then adjusted to pH 5 with aqueous HCl (6 M). The resulting solids were collected by filtration, washed with water and dried to give 2-oxo-1-[[4-(trifluoromethyl)phenyl]methyl]pyrimidine-4-carboxylic acid (334 mg) as a yellow solid. LCMS Method E: [M+H]+=299.


Synthesis of Intermediate 43 (5,6-difluoro-1H-indol-3-amine hydrogen chloride)



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Step 1: 5,6-difluoro-3-nitro-1H-indole

5,6-Difluoro-1H-indole (25.0 g, 163.3 mmol, 1.0 equiv.) was dissolved in in ACN (300 mL) and cooled to 0° C., then AgNO3 (33.3 g, 195.9 mmol, 1.2 equiv.) was added. The resulting mixture was stirred for 15 min, then benzoyl chloride (27.5 g, 195.9 mmol, 1.2 equiv.) was added batchwise, maintaining the reaction mixture at 0° C. After an additional 3 hours at 0° C. the reaction mixture was quenched by the addition of ice-water. The reaction mixture was adjusted to pH 8 with saturated aqueous NaHCO3, then extracted with DCM and the organic layers concentrated under vacuum. The residue was purified by flash column chromatography on silica gel, eluting with ethyl acetate/petroleum ether (2:1) to give 5,6-difluoro-3-nitro-1H-indole (24 g) as a brown solid. LCMS Method A-1: [M+H]+=199.


Step 2: tert-butyl N-(5,6-difluoro-1H-indol-3-yl)carbamate

5,6-Difluoro-3-nitro-1H-indole (24.0 g, 121.1 mmol, 1.0 equiv.) was dissolved in MeOH (300 mL), then Pd/C (2.4 g, wt 10%) and (Boc)2O (39.7 g, 181.7 mmol, 1.5 equiv.) were added under nitrogen. The mixture was sparged with nitrogen, placed under an atmosphere of hydrogen gas (balloon), then stirred overnight at ambient temperature. The solids were removed by filtration and the filtrate was concentrated under vacuum. The residue was purified by flash column chromatography on silica gel, eluting with ethyl acetate/petroleum ether (1:4) to give tert-butyl N-(5,6-difluoro-1H-indol-3-yl)carbamate (22.0 g) as a yellow solid. LCMS Method C-1: [M+H]+=269.


Step 3: 5,6-difluoro-1H-indol-3-amine hydrochloride

tert-Butyl N-(5,6-difluoro-1H-indol-3-yl)carbamate (17.0 g, 63.4 mmol, 1.0 equiv.) was dissolved in HCl/1,4-dioxane (4N, 200 mL). The resulting mixture was stirred for 30 min at ambient temperature then concentrated under vacuum to give 5,6-difluoro-1H-indol-3-amine hydrochloride (12.0 g) as a yellow solid. LCMS Method C-1: [M+H]+=169.


The following intermediates were prepared using the same method described for Intermediate 43.















Intermediate
Starting material
Structure
LCMS data







Intermediate 60


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Method A-1: MS-ESI: 185 [M + H]+









Synthesis of Intermediate 61 (5-bromo-1H-indol-3-amine hydrogen chloride)



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Step 1: 5-bromo-1H-indole-3-carbonyl azide

5-Bromo-1H-indole-3-carboxylic acid (30.0 g, 124.9 mmol, 1.0 equiv.) was dissolved in THE (150 mL), then TEA (26.1 mL, 187.4 mmol, 1.5 equiv.) and DPPA (37.8 g, 137.4 mmol, 1.1 equiv.) were added. The reaction mixture was stirred for 12 hours at ambient temperature, then quenched by the addition of water and stirred for an additional 10 min. The precipitated solid was collected by filtration and dried under vacuum to give 5-bromo-1H-indole-3-carbonyl azide (33.6 g) as an off-white solid. LCMS Method B-1: [M−H]=263.


Step 2: tert-butyl (5-bromo-1H-indol-3-yl)carbamate

5-Bromo-1H-indole-3-carbonyl azide (33.6 g, 126.7 mmol, 1.0 equiv.) was dissolved in t-BuOH (300 mL). The reaction mixture was heated to 80° C. for 12 hours, then cooled to ambient temperature and concentrated under vacuum. The residue was purified by flash column chromatography on silica gel, eluting with ethyl acetate/petroleum ether (1:10) to give tert-butyl (5-bromo-1H-indol-3-yl)carbamate (22.1 g) as a white solid. LCMS Method A-1: [M+H]+=311.


Step 3: 5-bromo-1H-indol-3-amine hydrochloride

tert-Butyl (5-bromo-1H-indol-3-yl)carbamate (20.0 g, 64.2 mmol, 1.0 equiv.) was dissolved in HCl/1,4-dioxane (4 M, 150 mL). The reaction mixture was stirred for 2 hours at ambient temperature then concentrated under vacuum to give 5-bromo-1H-indol-3-amine hydrochloride (18.7 g) as a brown solid. LCMS Method A-1: [M+H]+=211.


The following intermediates were prepared using the same method described for Intermediate 61.















Intermediate
Starting material
Structure
LCMS data







Intermediate 50


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Method A-1: MS-ESI: 167 [M + H]+





Intermediate 58


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Method A-1: MS-ESI: 151 [M + H]+









Synthesis of Intermediate 51 (5-(1-isopropyl-1H-pyrazol-4-yl)-1H-indol-3-amine hydrogen chloride)



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Step 1: tert-butyl N-[5-(1-isopropylpyrazol-4-yl)-1H-indol-3-yl]carbamate

tert-Butyl N-(5-bromo-1H-indol-3-yl)carbamate (500.0 mg, 1.6 mmol, 1.0 equiv.) and 1-isopropyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazole (417.3 mg, 1.8 mmol, 1.1 equiv.) were dissolved in 1,4-dioxane (6 mL) and water (0.6 mL). Then Xphos Pd G3 (136.0 mg, 0.2 mmol, 0.1 equiv.) and Cs2CO3 (2.1 g, 6.4 mmol, 4.0 equiv.) were added under an atmosphere of nitrogen. The reaction mixture was heated to 100° C. overnight, then cooled to ambient temperature and quenched by the addition of water. The resulting solution was extracted with ethyl acetate and concentrated under vacuum. The residue was purified by flash column chromatography on silica gel, eluting with ethyl acetate/petroleum ether (1:1) to give tert-butyl N-[5-(1-isopropylpyrazol-4-yl)-1H-indol-3-yl]carbamate (390.0 mg) as a white solid. LCMS Method C-1: [M+H]+=341.


Step 2: 5-(1-isopropylpyrazol-4-yl)-1H-indol-3-amine hydrochloride

tert-Butyl N-[5-(1-isopropylpyrazol-4-yl)-1H-indol-3-yl]carbamate (385 mg, 1.1 mmol, 1.0 equiv.) was dissolved in HCl/1,4-dioxane (4 M, 8 mL). The reaction mixture was stirred for 4 hours at ambient temperature, then concentrated under vacuum to give 5-(1-isopropylpyrazol-4-yl)-1H-indol-3-amine hydrochloride (410.0 mg) as a grey solid. LCMS Method A-1: [M+H]+=241.


Synthesis of Intermediate 62 (7-fluoro-5-(1-isopropyl-1H-pyrazol-4-yl)-1H-indol-3-amine hydrogen chloride)



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Step 1: 5-bromo-7-fluoro-3-nitro-1H-indole

5-Bromo-7-fluoro-1H-indole (3.0 g, 14.0 mmol, 1.0 equiv.) was dissolved in in ACN (50 mL) and cooled to 0° C., then AgNO3 (3.6 g, 21.0 mmol, 1.5 equiv.) was added. The resulting mixture was stirred for 15 min, then benzoyl chloride (3.0 g, 21.0 mmol, 1.5 equiv.) was added batchwise, maintaining the reaction mixture at 0° C. After an additional 3 hours at 0° C. the reaction mixture was quenched by the addition of ice-water. The resulting solution was extracted with ethyl acetate, dried over anhydrous Na2SO4 and concentrated under vacuum. The residue was purified by flash column chromatography on silica gel, eluting with dichloromethane/petroleum ether (1:10) to give 5-bromo-7-fluoro-3-nitro-1H-indole (2.1 g) as a brown solid. LCMS Method A-1: [M+H]+=259.


Step 2: tert-butyl N-(5-bromo-7-fluoro-1H-indol-3-yl)carbamate

5-Bromo-7-fluoro-3-nitro-1H-indole (2.0 g, 7.7 mmol, 1.0 equiv.) and (Boc)20 (2.0 g, 9.3 mmol, 1.2 equiv.) were dissolved in MeOH (40 mL) and cooled to 0° C. Then NaBH4 (0.6 g, 15.4 mmol, 2.0 equiv.) and NiCl2 (2.0 g, 15.4 mmol, 2.0 equiv.) were added in portions, maintaining the solution at 0° C. The reaction mixture was stirred for 0.5 hours at 0° C. and then then quenched by the addition of water. The resulting solution was extracted with ethyl acetate, dried over anhydrous Na2SO4 and concentrated under vacuum. The residue was purified by flash column chromatography on silica gel, eluting with ethyl acetate/petroleum ether (1:10) to give tert-butyl N-(5-bromo-7-fluoro-1H-indol-3-yl)carbamate (300.0 mg) as a brown solid. LCMS Method A-1: [M+H]+=329.


Steps 3-4: 7-fluoro-5-(1-isopropylpyrazol-4-yl)-1H-indol-3-amine hydrochloride

The title compound was prepared using the same methods described for Intermediate 51, Steps 1-2. LCMS Method A-1: [M+H]+=259.


Synthesis of Intermediate 63 (6-(4,4-difluoro-1-methylcyclohexyl)-5-fluoronicotinic acid)



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Step 1: 4,4-difluoro-1-methylcyclohexan-1-ol

4,4-difluorocyclohexan-1-one (10.0 g, 74.6 mmol, 1.0 equiv.) was dissolved in Et2O (100.0 mL) and cooled to 0° C., then MeMgBr (3 M in THF, 80.0 mL, 240 mmol, 3.0 equiv.) was added dropwise, maintaining the solution at 0° C. The reaction mixture was stirred for 2 hours at 0° C., then quenched by the addition of ice-water. The resulting solution was extracted with ethyl acetate, washed with brine, dried over anhydrous Na2SO4 and concentrated under vacuum to give 4,4-difluoro-1-methylcyclohexan-1-ol (9.5 g) as a yellow solid. LCMS Method A-1: [M+H]+=151.


Step 2: 4,4-difluoro-1-methylcyclohexyl methyl oxalate

4,4-Difluoro-1-methylcyclohexan-1-ol (10.0 g, 66.6 mmol, 1.0 equiv.) and DMAP (0.8 g, 6.7 mmol, 0.1 equiv.) were dissolved in DCM (200 mL), then TEA (18.7 mL, 133.2 mmol, 2.0 equiv.) was added. This was followed by the dropwise addition of methyl oxalochloridate (6.1 mL, 67.3 mmol, 1.0 equiv.). The reaction mixture was stirred for 1 hour at ambient temperature, then concentrated under vacuum. The residue was purified by flash column chromatography on silica gel, eluting with ethyl acetate/petroleum ether (1:20) to give 4,4-difluoro-1-methylcyclohexyl methyl oxalate (11.2 g) as a yellow oil. LCMS Method A-1: [M+H]+=237.


Step 3: cesium 2-((4,4-difluoro-1-methylcyclohexyl)oxy)-2-oxoacetate

4,4-Difluoro-1-methylcyclohexyl methyl oxalate (5.0 g, 21.2 mmol, 1.0 equiv.) was dissolved in THF (50 mL) and water (50 mL), then CsOH (3.2 g, 20.9 mmol, 1.0 equiv.) was added. The reaction mixture was stirred for 1 hour at ambient temperature then concentrated under vacuum to give cesium 2-((4,4-difluoro-1-methylcyclohexyl)oxy)-2-oxoacetate (5.2 g) as a white solid. LCMS Method A-1: [M+H]+=272.


Step 4: methyl 6-(4,4-difluoro-1-methylcyclohexyl)-5-fluoropyridine-3-carboxylate

Cesium 2-((4,4-difluoro-1-methylcyclohexyl)oxy)-2-oxoacetate (5.0 g, 14.1 mmol, 1.0 equiv.) was dissolved in DMSO (30 mL), then (NH4)2S2O8 (2.3 g, 9.9 mmol, 0.7 equiv.), Ir[dF(CF3)ppy]2(dtbpy)PFe (1.6 g, 1.4 mmol, 0.1 equiv.) and methyl 5-fluoropyridine-3-carboxylate (1.8 g, 11.3 mmol, 0.8 equiv.) were added. The resulting solution was irradiated with the Royal Blue (450 nm) LED light for 3 hours with stirring at 1000 rpm, then quenched by the addition of water. The resulting solution was extracted with ethyl acetate and concentrated under vacuum. The residue was purified by flash column chromatography on silica gel, eluting with ethyl acetate/petroleum ether (1:10) to give methyl 6-(4,4-difluoro-1-methylcyclohexyl)-5-fluoropyridine-3-carboxylate (2.5 g) as a yellow oil. LCMS Method A-1: [M+H]+=272.


Step 5: 6-(4,4-difluoro-1-methylcyclohexyl)-5-fluoropyridine-3-carboxylic acid

Methyl 6-(4,4-difluoro-1-methylcyclohexyl)-5-fluoropyridine-3-carboxylate (2.5 g, 8.7 mmol, 1.0 equiv.) was dissolved in MeOH (25 mL) and water (25 mL), then NaOH (1.0 g, 26.0 mmol, 3.0 equiv.) was added. The reaction mixture was heated to 80° C. for 1 hour, then cooled to ambient temperature and concentrated under vacuum. The residue was purified by Flash-Prep-HPLC using the following conditions: Column, C18 silica gel; mobile phase, ACN/H2O=0% increasing to ACN/H2O=100% within 30 min; Detector, 254 nm. This resulted in 6-(4,4-difluoro-1-methylcyclohexyl)-5-fluoropyridine-3-carboxylic acid (2.1 g) as a yellow oil. LCMS Method C-1: [M+H]+=274 Synthesis of intermediate 64 (6-(4-methyl-1-(2,2,2-trifluoroethyl)piperidin-4-yl)nicotinic acid)




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Steps 1-3: methyl 6-(1-(tert-butoxycarbonyl)-4-methylpiperidin-4-yl)nicotinate

The title compound was prepared using the same methods described for Intermediate 63, steps 2-4. LCMS Method A-1: [M+H]+=335.


Step 4: methyl 6-(4-methylpiperidin-4-yl)nicotinate hydrochloride

Methyl 6-[1-(tert-butoxycarbonyl)-4-methylpiperidin-4-yl]pyridine-3-carboxylate (3.6 g, 10.8 mmol, 1.0 equiv.) was dissolved in HCl/1,4-dioxane (4 M, 20 mL). The reaction mixture was stirred for 30 min at ambient temperature, then concentrated under vacuum to give methyl 6-(4-methylpiperidin-4-yl)nicotinate hydrochloride (3.0 g) as a yellow solid that was used in next step directly without further purification. LCMS Method A-1: [M+H]+=235.


Step 5: methyl 6-(4-methyl-1-(2,2,2-trifluoroethyl)piperidin-4-yl)nicotinate

Methyl 6-(4-methylpiperidin-4-yl)pyridine-3-carboxylate (3.0 g, 12.8 mmol, 1.0 equiv.) and 2,2,2-trifluoroethyl trifluoromethanesulfonate (3.6 g, 15.4 mmol, 1.2 equiv.) were dissolved in ACN (100 mL), then TEA (5.4 mL, 38.4 mmol, 3.0 equiv.) was added. The reaction mixture was stirred for 4 hours at ambient temperature, then concentrated under vacuum. The residue was purified by flash column chromatography on silica gel, eluting with ethyl acetate/petroleum ether (1:1) to give methyl 6-[4-methyl-1-(2,2,2-trifluoroethyl)piperidin-4-yl]pyridine-3-carboxylate (2.6 g) as a colorless oil. LCMS Method A-1: [M+H]+=317.


Step 6: 6-(4,4-difluoro-1-methylcyclohexyl)-5-fluoropyridine-3-carboxylic acid

Methyl 6-[4-methyl-1-(2,2,2-trifluoroethyl)piperidin-4-yl]pyridine-3-carboxylate (2.6 g, 8.2 mmol, 1.0 equiv.) was dissolved in MeOH (100 mL) and water (40 mL), then NaOH (0.5 g, 12.2 mmol, 1.5 equiv.) was added. The reaction mixture was stirred for 1 hour at ambient temperature then concentrated under vacuum. The residue was diluted with water, adjusted to pH 6 with aqueous HCl (4 M), extracted with ethyl acetate, washed with brine, dried over anhydrous Na2SO4 and concentrated under vacuum to give 6-[4-methyl-1-(2,2,2-trifluoroethyl)piperidin-4-yl]pyridine-3-carboxylic acid (2.3 g) as an off-white solid. LCMS Method C-1: [M+H]+=303.


Synthesis of Intermediate 65 (4-((1-(2,2,2-trifluoroethyl)piperidin-4-yl)oxy)benzoic acid)



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Step 1: methyl 4-[[1-(2,2,2-trifluoroethyl)piperidin-4-yl]oxy]benzoate

Methyl 4-hydroxybenzoate (500.0 mg, 3.3 mmol, 1.0 equiv.) and 1-(2,2,2-trifluoroethyl)piperidin-4-ol (662.2 mg, 3.6 mmol, 1.1 equiv.) were dissolved in THE (10 mL) and cooled to 0° C., then Ph3P (1.3 g, 4.9 mmol, 1.5 equiv.) was added. This was followed by the dropwise addition of DIAD (996.8 mg, 4.9 mmol, 1.5 equiv.) at 0° C. The reaction mixture was stirred overnight at ambient temperature then quenched by the addition of water. The resulting solution was extracted with ethyl acetate, washed with brine, dried over anhydrous Na2SO4 and concentrated under vacuum. The residue was purified by flash column chromatography on silica gel, eluting with ethyl acetate/petroleum ether (1:5) to give methyl 4-[[1-(2,2,2-trifluoroethyl)piperidin-4-yl]oxy]benzoate (200.0 mg) as a white solid. LCMS Method A-1: [M+H]+=318.


Step 2: 4-[[1-(2,2,2-trifluoroethyl)piperidin-4-yl]oxy]benzoic acid

Methyl 4-[[1-(2,2,2-trifluoroethyl)piperidin-4-yl]oxy]benzoate (200.0 mg, 0.6 mmol, 1.0 equiv.) was dissolved in MeOH (3 mL) and water (3 mL), then LiOH (30.2 mg, 1.3 mmol, 2.0 equiv.) was added. The reaction mixture was stirred overnight at ambient temperature then concentrated under vacuum. The residue was diluted with water then adjusted to pH 5 with conc. HCl. The resulting solution was extracted with dichloromethane then concentrated under vacuum. The residue was purified by Flash-Prep-HPLC using the following conditions: Column, C18 silica gel; mobile phase, H2O/ACN, 10% ACN increasing to 90% within 30 min; Detector, 254 nm. This gave 4-[[1-(2,2,2-trifluoroethyl)piperidin-4-yl]oxy]benzoic acid (110.0 mg) as a white solid. LCMS Method B-1: [M−H]=302.


The following intermediates in were prepared using the same method described for Intermediate 65.
















Inter-
Starting
Starting

LCMS


mediate
material A
material B
Structure
data







Inter- mediate 66


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Method B-1: MS-ESI: 267 [M − H]





Inter- mediate 32


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Method B-1: MS-ESI: 247 [M − H]





Inter- mediate 33


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Method B-1: MS-ESI: 241 [M − H]





Inter- mediate 34


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Method B-1: MS-ESI: 281 [M − H]





Inter- mediate 35


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Method B-1: MS-ESI: 247 [M − H]





Inter- mediate 36


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Method B-1: MS-ESI: 261 [M − H]





Inter- mediate 30


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Method B-1: MS-ESI: 265 [M − H]









Synthesis of Intermediate 67 (exo-6-((2,2,2-trifluoroethoxy)methyl)-3-azabicyclo[3.1.0]hexane)



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Step 1: (exo-3-benzyl-3-azabicyclo[3.1.0]hexan-6-yl)methyl methanesulfonate

[exo-3-benzyl-3-azabicyclo[3.1.0]hexan-6-yl] methanol (2.5 g, 12.3 mmol, 1.0 equiv.) and TEA (2.6 mL, 18.4 mmol, 1.5 equiv.) were dissolved in DCM (30 mL), then the solution was cooled to 0° C. and MsCl (1.4 mL, 18.4 mmol, 1.5 equiv.) was added dropwise, maintaining the solution at 0° C. The reaction mixture was stirred for 3 hours at 0° C., then quenched by the addition of water. The resulting solution was extracted with dichloromethane, washed with brine, dried over anhydrous Na2SO4 and concentrated under vacuum to give [exo-3-benzyl-3-azabicyclo[3.1.0]hexan-6-yl]methyl methanesulfonate (2.5 g) as a yellow oil. LCMS Method C-1: [M+H]+=282.


Step 2: exo-3-benzyl-6-((2,2,2-trifluoroethoxy)methyl)-3-azabicyclo[3.1.0]hexane

Trifluoroethanol (0.7 mL, 8.9 mmol, 1.0 equiv.) was dissolved in DMF (30 mL) and the reaction mixture was cooled to 0° C., then NaH (60% in oil, 0.4 g, 8.9 mmol, 1.0 equiv.) was added, maintaining the solution at 0° C. After 15 min at 0° C., [exo-3-benzyl-3-azabicyclo[3.1.0]hexan-6-yl]methyl methanesulfonate (2.5 g, 8.9 mmol, 1.0 equiv.) was added at 0° C. The reaction mixture was stirred for 1 hour at ambient temperature, then quenched by the addition of ice-water. The reaction mixture was extracted with ethyl acetate, washed with brine, dried over anhydrous Na2SO4 and concentrated under vacuum. The residue was purified by flash column chromatography on silica gel, eluting with ethyl acetate/petroleum ether (1:5) to give exo-3-benzyl-6-[(2,2,2-trifluoroethoxy)methyl]-3-azabicyclo[3.1.0]hexane (600.0 mg) as a yellow oil. LCMS Method A-1: [M+H]+=286.


Step 3: exo-6-((2,2,2-trifluoroethoxy)methyl)-3-azabicyclo[3.1.0]hexane

Exo-3-benzyl-6-[(2,2,2-trifluoroethoxy)methyl]-3-azabicyclo[3.1.0]hexane (600.0 mg, 2.1 mmol, 1.0 equiv.) was dissolved in MeOH (10 mL) and acetic acid (0.5 mL), then Pd/C (10% wt., 100.0 mg) was added. The mixture was sparged with nitrogen, placed under an atmosphere of hydrogen gas (balloon), then stirred for 2 hours at ambient temperature. The solids were removed by filtration and the filtrate was concentrated under vacuum to give exo-6-[(2,2,2-trifluoroethoxy)methyl]-3-azabicyclo[3.1.0]hexane (350.0 mg) as a yellow solid. LCMS Method A-1: [M+H]+=196.


Synthesis of Intermediate 68 (5-((tert-butyldiphenylsilyl)oxy)-4,4-dimethylpentan-1-amine)



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Step 1: 5-ethoxy-2,2-dimethyl-5-oxopentanoic acid sodium salt

3,3-Dimethyloxane-2,6-dione (3.0 g, 21.1 mmol, 1.0 equiv.) was dissolved in EtOH (30 mL), then EtONa (2.2 g, 31.7 mmol, 1.5 equiv.) was added. The reaction mixture was stirred overnight at ambient temperature and concentrated under vacuum. The residue was suspended in Et2O and the solid was collected by filtration, then washed with Et2O and dried under vacuum to give 5-ethoxy-2,2-dimethyl-5-oxopentanoic acid sodium salt (2.4 g) as a white solid. LCMS Method B-1: [M−H]=187.


Step 2: ethyl 5-hydroxy-4,4-dimethylpentanoate

5-Ethoxy-2,2-dimethyl-5-oxopentanoic acid sodium salt (2.0 g, 10.6 mmol, 1.0 equiv.) and 1-chloroethyl 2-methylpropanoate (2.4 g, 15.9 mmol, 1.5 equiv.) were dissolved in THE (20 mL) and DMF (4 mL). The reaction mixture was stirred for 2 hours at ambient temperature. This was followed by the addition of a solution of NaBH4 (804.0 mg, 21.3 mmol, 2.0 equiv.) in MeOH. The resulting mixture was stirred for an additional 1 hour at ambient temperature, then quenched by the addition of saturated aqueous NH4Cl. The resulting solution was extracted with ethyl acetate and concentrated under vacuum to give ethyl 5-hydroxy-4,4-dimethylpentanoate (1.2 g) as a yellow oil. LCMS Method C-1: [M+H]+=175.


Step 3: ethyl 5-[(tert-butyldiphenylsilyl)oxy]-4,4-dimethylpentanoate

Ethyl 5-hydroxy-4,4-dimethylpentanoate (1.5 g, 8.6 mmol, 1.0 equiv.) and TBDPSCl (4.7 g, 17.2 mmol, 2.0 equiv.) were dissolved in THE (15 mL), then imidazole (1.2 g, 17.2 mmol, 2.0 equiv.) was added. The reaction mixture was stirred overnight at ambient temperature, then concentrated under vacuum. The residue was purified by flash column chromatography on silica gel, eluting with ethyl acetate/petroleum ether (1:2) to give ethyl 5-[(tert-butyldiphenylsilyl)oxy]-4,4-dimethylpentanoate (1.2 g) as a yellow solid. LCMS Method C-1: [M+H]+=413.


Step 4: 5-[(tert-butyldiphenylsilyl)oxy]-4,4-dimethylpentan-1-ol

Ethyl 5-[(tert-butyldiphenylsilyl)oxy]-4,4-dimethylpentanoate (1.0 g, 2.4 mmol, 1.0 equiv.) was dissolved in THE (10 mL) and cooled to 0° C., then LiAlH4 (184.0 mg, 4.8 mmol, 2.0 equiv.) was added, maintaining the solution at 0° C. The reaction mixture was stirred overnight at ambient temperature, then cooled to 0° C. and quenched by the addition of saturated aqueous NH4Cl. The resulting solution was extracted with ethyl acetate, washed with brine, dried over anhydrous Na2SO4 and concentrated under vacuum to give 5-[(tert-butyldiphenylsilyl)oxy]-4,4-dimethylpentan-1-ol (850.0 mg) as a yellow oil. LCMS Method C-1: [M+H]+=371.


Step 5: 2-[5-[(tert-butyldiphenylsilyl)oxy]-4,4-dimethylpentyl]isoindole-1,3-dione

5-[(tert-Butyldiphenylsilyl)oxy]-4,4-dimethylpentan-1-ol (700.0 mg, 1.9 mmol, 1.0 equiv.) and phthalimide (277.9 mg, 1.9 mmol, 1.0 equiv.) were dissolved in THE (10 mL) and cooled to 0° C., then PPh3 (743.1 mg, 2.8 mmol, 1.5 equiv.) was added. This was followed by the dropwise addition of DIAD (572.9 mg, 2.8 mmol, 1.5 equiv.) at 0° C. The reaction mixture was stirred overnight at ambient temperature, then concentrated under vacuum. The residue was purified by flash column chromatography on silica gel, eluting with ethyl acetate/petroleum ether (1:2) to give 2-[5-[(tert-butyldiphenylsilyl)oxy]-4,4-dimethylpentyl]isoindole-1,3-dione (500.0 mg) as a yellow oil. LCMS Method C-1: [M+H]+=500.


Step 6: 5-((tert-butyldiphenylsilyl)oxy)-4,4-dimethylpentan-1-amine

2-[5-[(tert-Butyldiphenylsilyl)oxy]-4,4-dimethylpentyl]isoindole-1,3-dione (700.0 mg, 1.4 mmol, 1.0 equiv.) was dissolved in EtOH (10 mL), then hydrazine (224.4 mg, 7.0 mmol, 5.0 equiv.) was added. The reaction mixture was stirred overnight at ambient temperature. The solid was removed by filtration and the filtrate was concentrated under vacuum to give 5-((tert-butyldiphenylsilyl)oxy)-4,4-dimethylpentan-1-amine (510.0 mg) as a yellow solid. LCMS Method C-1: [M+H]+=370.


Synthesis of Intermediate 69 (6-(1,1-difluoro-6-azaspiro[2.5]octan-6-yl)-5-fluoronicotinic acid)



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Step 1: methyl 6-[1,1-difluoro-6-azaspiro[2.5]octan-6-yl]-5-fluoropyridine-3-carboxylate

Methyl 6-bromo-5-fluoropyridine-3-carboxylate (400.0 mg, 1.7 mmol, 1.0 equiv.) and 1,1-difluoro-6-azaspiro[2.5]octane (251.5 mg, 1.7 mmol, 1.0 equiv.) were dissolved in ACN (40 ml), then Cs2CO3 (1.1 g, 3.4 mmol, 2.0 equiv.) was added. The reaction mixture was heated to 90° C. overnight, then cooled to ambient temperature and quenched by the addition of water. The resulting solution was extracted with ethyl acetate, dried over anhydrous Na2SO4 and concentrated under vacuum to give methyl 6-[1,1-difluoro-6-azaspiro[2.5]octan-6-yl]-5-fluoropyridine-3-carboxylate (350.0 mg) as a pale yellow solid. LCMS Method A-1: [M+H]+=301.


Step 2: 6-[1,1-difluoro-6-azaspiro[2.5]octan-6-yl]-5-fluoropyridine-3-carboxylic acid

Methyl 6-[1,1-difluoro-6-azaspiro[2.5]octan-6-yl]-5-fluoropyridine-3-carboxylate (290.0 mg, 1.0 mmol, 1.0 equiv.) was dissolved in MeOH (2 mL) and water (2 mL), then LiOH (115.6 mg, 4.8 mmol, 5.0 equiv.) was added. The reaction mixture was stirred for 3 hours at ambient temperature, then concentrated under vacuum. The residue was diluted with water, then adjusted to pH 7 with aqueous HCl (6M). The resulting solution was extracted with ethyl acetate, dried over anhydrous Na2SO4 and concentrated under vacuum to give 6-[1,1-difluoro-6-azaspiro[2.5]octan-6-yl]-5-fluoropyridine-3-carboxylic acid (210.0 mg) as an off-white solid. LCMS Method C-1: [M+H]+=287.


The following intermediates were prepared using the same method described for Intermediate 69.

















Inter-
Starting
Starting



mediate
material A
material B
Structure





Inter- mediate 70


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Inter- mediate 71


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Inter- mediate 72


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Inter- mediate 73


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Inter- mediate 74


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Inter- mediate 75


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Inter- mediate 76


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Inter- mediate 8


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Inter- mediate 9


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Inter- mediate 77


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Inter- mediate 12


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Inter- mediate 13


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Inter- mediate 15


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Inter- mediate 16


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Inter- mediate 2


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Inter- mediate 17


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Inter- mediate 1


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Inter-
LCMS




mediate
data







Inter-
Method A-1:




mediate
MS-ESI: 335




70
[M + H]+




Inter-
Method A-1:




mediate
MS-ESI: 334




71
[M + H]+




Inter-
Method C-1:




mediate
MS-ESI: 269




72
[M + H]+




Inter-
Method C-1:




mediate
MS-ESI: 253




73
[M + H]+




Inter-
Method A-1:




mediate
MS-ESI: 240




74
[M + H]+




Inter-
Method A-1:




mediate
MS-ESI: 229




75
[M + H]+




Inter-
Method A-1:




mediate
MS-ESI: 249




76
[M + H]+




Inter-
Method C-1:




mediate
MS-ESI: 299




8
[M + H]+




Inter-
Method A-1:




mediate
MS-ESI: 250




9
[M + H]+




Inter-
Method A-1:




mediate
MS-ESI: 292




77
[M + H]+




Inter-
Method A-1:




mediate
MS-ESI: 237




12
[M + H]+




Inter-
Method A-1:




mediate
MS-ESI: 281




13
[M + H]+




Inter-
Method B-1:




mediate
MS-ESI: 265




15
[M − H]




Inter-
Method A-1:




mediate
MS-ESI: 295




16
[M + H]+




Inter-
Method A-1:




mediate
MS-ESI: 277




2
[M + H]+




Inter-
Method A-1:




mediate
MS-ESI: 263




17
[M + H]+




Inter-
Method A-1:




mediate
MS-ESI: 289




1
[M + H]+









Synthesis of Intermediate 78 (4-(4,4-difluorocyclohexyl)-3,5-dimethylbenzoic acid)



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Step 1: methyl 4-(4,4-difluorocyclohex-1-en-1-yl)-3,5-dimethylbenzoate

Methyl 4-bromo-3,5-dimethylbenzoate (500 mg, 2.1 mmol, 1.0 equiv.) and 2-(4,4-difluorocyclohex-1-en-1-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (1.0 g, 4.1 mmol, 2.0 equiv.) were dissolved in 1,4-dioxane (10 mL) and water (1 mL), then Cs2CO3 (1.4 g, 4.3 mmol, 2.0 equiv.) and Pd(dppf)Cl2 (153.7 mg, 0.2 mmol, 0.1 equiv.) were added under an atmosphere of nitrogen. The resulting solution was heated to 90° C. for 16 hours, then cooled to ambient temperature and concentrated under vacuum. The residue was purified by flash column chromatography on silica gel, eluting with ethyl acetate/petroleum ether (1:1) to give methyl 4-(4,4-difluorocyclohex-1-en-1-yl)-3,5-dimethylbenzoate (410.0 mg) as a white solid. LCMS Method A-1: [M+H]+=281.


Step 2: methyl 4-(4,4-difluorocyclohexyl)-3,5-dimethylbenzoate

Methyl 4-(4,4-difluorocyclohex-1-en-1-yl)-3,5-dimethylbenzoate (380.0 mg, 1.4 mmol, 1.0 equiv.) was dissolved in DCM (15 mL), then PtO2 (20.0 mg, 0.1 mmol, 0.06 equiv.) was added. The mixture was sparged with nitrogen, placed under an atmosphere of hydrogen gas (balloon), then stirred for 18 hours at ambient temperature. The solids were removed by filtration and the filtrate was concentrated under vacuum. The residue was purified by flash column chromatography on silica gel, eluting with ethyl acetate/petroleum ether (1:2) to give methyl 4-(4,4-difluorocyclohexyl)-3,5-dimethylbenzoate (232.0 mg) as a white solid. LCMS Method C-1: [M+H]+=283.


Step 3: 4-(4,4-difluorocyclohexyl)-3,5-dimethylbenzoic acid

Methyl 4-(4,4-difluorocyclohexyl)-3,5-dimethylbenzoate (232.0 mg, 0.8 mmol, 1.0 equiv.) was dissolved in MeOH (5 mL) and water (1 mL), then NaOH (32.9 mg, 0.8 mmol, 1.0 equiv.) was added. The reaction was heated to 50° C. for 16 hours, then cooled to ambient temperature and concentrated under vacuum. The residue was diluted with water, then adjusted to pH 5 with aqueous HCl (4 M). The precipitated solids were collected by filtration, washed with water and dried under vacuum to give 4-(4,4-difluorocyclohexyl)-3,5-dimethylbenzoic acid (130.0 mg) as a white solid. LCMS Method B-1: [M−H]=267.


The following intermediates were prepared using the same method described for Intermediate 78.

















Starting
Starting




Intermediate
material A
material B
Structure
LCMS data



















Intermediate 41


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Method B-1: MS-ESI: 273 [M − H]





Intermediate 55*


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Method B-1: MS-ESI: 235 [M − H]





Intermediate 42


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Method B-1: MS-ESI: 218 [M − H]









Synthesis of Intermediate 79 (5-fluoro-6-(6-(2,2,2-trifluoroethoxy)-2-azaspiro[3.3]heptan-2-yl)nicotinic acid)



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Step 1: 2-azaspiro[3.3]heptan-6-ol hydrochloride

tert-Butyl 6-hydroxy-2-azaspiro[3.3]heptane-2-carboxylate (1.6 g, 7.5 mmol, 1.0 equiv.) was dissolved in HCl/1,4-dioxane (4 M, 20 mL). The reaction mixture was stirred overnight at ambient temperature, then concentrated under vacuum to give 2-azaspiro[3.3]heptan-6-ol hydrochloride (1.0 g) as a yellow oil. LCMS Method A-1: [M+H]+=114.


Step 2: methyl 5-fluoro-6-[6-hydroxy-2-azaspiro[3.3]heptan-2-yl]pyridine-3-carboxylate

Methyl 6-bromo-5-fluoropyridine-3-carboxylate (2.1 g, 8.8 mmol, 1.0 equiv.) and 2-azaspiro[3.3]heptan-6-ol hydrochloride (1.0 g, 8.8 mmol, 1.0 equiv.) were dissolved in ACN (20 mL), then K2CO3 (3.7 g, 26.5 mmol, 3.0 equiv.) was added. The reaction mixture was heated to 80° C. overnight, then cooled to ambient temperature and quenched by the addition of water. The resulting solution was extracted with ethyl acetate, dried over anhydrous Na2SO4 and concentrated under vacuum. The residue was purified by Flash-Prep-HPLC using the following conditions: Column, C18 silica gel; mobile phase, H2O/ACN; 10% ACN increasing to 90% within 30 min; Detector, 254 nm. This gave methyl 5-fluoro-6-[6-hydroxy-2-azaspiro[3.3]heptan-2-yl]pyridine-3-carboxylate (500.0 mg) as a yellow solid. LCMS Method A-1: [M+H]+=267.


Step 3: methyl 5-fluoro-6-[6-(methanesulfonyloxy)-2-azaspiro[3.3]heptan-2-yl]pyridine-3-carboxylate

Methyl 5-fluoro-6-[6-hydroxy-2-azaspiro[3.3]heptan-2-yl]pyridine-3-carboxylate (500.0 mg, 1.9 mmol, 1.0 equiv.) and TEA (0.5 mL, 2.0 equiv.) were dissolved in DCM (10 mL), then MsCl (215.1 mg, 1.9 mmol, 1.0 equiv.) was added. The reaction was stirred for 2 hours and then quenched by the addition of water. The resulting solution was extracted with ethyl acetate, dried over anhydrous Na2SO4 and concentrated under vacuum to give methyl 5-fluoro-6-[6-(methanesulfonyloxy)-2-azaspiro[3.3]heptan-2-yl]pyridine-3-carboxylate (510.0 mg) as a white solid. LCMS Method A-1: [M+H]+=345.


Step 4: methyl 5-fluoro-6-[6-(methanesulfonyloxy)-2-azaspiro[3.3]heptan-2-yl]pyridine-3-carboxylate

Methyl 5-fluoro-6-[6-(methanesulfonyloxy)-2-azaspiro[3.3]heptan-2-yl]pyridine-3-carboxylate (250.0 mg, 0.7 mmol, 1.0 equiv.) was dissolved in DMF (5 mL), then (2,2,2-trifluoroethoxy)sodium (265.8 mg, 2.2 mmol, 3.0 equiv.) was added. The reaction mixture was heated to 80° C. overnight, then cooled to ambient temperature and quenched by the addition of water. The resulting solution was extracted with ethyl acetate, washed with brine, dried over anhydrous Na2SO4 and concentrated under vacuum. The residue was purified by Flash-Prep-HPLC using the following conditions: Column, C18 silica gel; mobile phase, H2O/ACN, 10% ACN increasing to 90% within 30 min; Detector, 254 nm. This gave 5-fluoro-6-[6-(2,2,2-trifluoroethoxy)-2-azaspiro[3.3]heptan-2-yl]pyridine-3-carboxylic acid (52.0 mg) as a brown solid. LCMS Method A-1: [M+H]+=335.


Synthesis of Intermediate 80 (4-((2-methoxyethyl)amino)-3-(trifluoromethyl)benzoic acid)



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Step 1: methyl 4-[(2-methoxyethyl)amino]-3-(trifluoromethyl)benzoate

Methyl 4-bromo-3-(trifluoromethyl)benzoate (500.0 mg, 1.8 mmol, 1.0 equiv.) was dissolved in 1,4-dioxane (10 mL), then Cs2CO3 (1.7 g, 5.3 mmol, 3.0 equiv.), 2-methoxyethan-1-amine (159.2 mg, 2.1 mmol, 1.2 equiv.) and XPhos Pd G3 (149.5 mg, 0.2 mmol, 0.1 equiv.) were added under an atmosphere of nitrogen. The reaction mixture was heated to 80° C. overnight, then cooled to ambient temperature and quenched by the addition of water. The resulting solution was extracted with ethyl acetate and concentrated under vacuum. The residue was purified by flash column chromatography on silica gel, eluting with ethyl acetate/petroleum ether (1:1) to give methyl 4-[(2-methoxyethyl)amino]-3-(trifluoromethyl)benzoate (205.0 mg) as a yellow solid. LCMS Method A-1: [M+H]+=278.


Step 2: 4-[(2-methoxyethyl)amino]-3-(trifluoromethyl)benzoic acid

Methyl 4-[(2-methoxyethyl)amino]-3-(trifluoromethyl)benzoate (200.0 mg, 0.7 mmol, 1.0 equiv.) was dissolved in MeOH (3 mL) and water (7 mL), then NaOH (57.7 mg, 1.4 mmol, 2.0 equiv.) was added. The reaction mixture was heated to 80° C. for 2 hours, then cooled to ambient temperature and concentrated under vacuum. The residue was diluted with water, adjusted to pH 6 with aqueous HCl (1 M). The resulting solution was extracted with ethyl acetate, dried over anhydrous Na2SO4 and concentrated under vacuum to give 4-[(2-methoxyethyl)amino]-3-(trifluoromethyl)benzoic acid (150.0 mg) as a white solid. LCMS Method B-1: [M−H]=262.


The following intermediates were prepared using the same method described for Intermediate 80, using one of the three catalyst conditions for Step 1:_A: Pd2(dba)3, Binap and Cs2CO3; B: XPhos Pd G3, Cs2CO3; C: RuPhos Palladacycle Gen.2, Cs2CO3

















Inter-





me-
Starting
Starting



diate
material A
material B
Structure





Inter- me- diate 81


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Inter- me- diate 82


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Inter- me- diate 83


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Inter- me- diate 84


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Inter- me- diate 85


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Inter- me- diate 86


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Inter- me- diate 87


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Inter- me- diate 88


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Inter- me- diate 52


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Inter- me- diate 53


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Inter- me- diate 14


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Inter- me- diate 89


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Inter-





me-
Catalyst
LCMS



diate
Condition
data






Inter-
A
Method A-1:



me-

MS-ESI:



diate

197 [M + H]+



81





Inter-
B
Method A-1:



me-

MS-ESI:



diate

263 [M + H]+



82





Inter-
B
Method C-1:



me-

MS-ESI:



diate

249 [M + H]+



83





Inter-
B
Method C-1:



me-

MS-ESI:



diate

229 [M + H]+



84





Inter-
B
Method A-1:



me-

MS-ESI:



diate

229 [M + H]+



85





Inter-
C
Method A-1:



me-

MS-ESI:



diate

257 [M + H]+



86





Inter-
B
Method A-1:



me-

MS-ESI:



diate

249 [M + H]+



87





Inter-
B
Method C-1:



me-

MS-ESI:



diate

249 [M + H]+



88





Inter-
B
Method B-1:



me-

MS-ESI:



diate

246 [M − H]



52





Inter-
C
Method A-1:



me-

MS-ESI:



diate

257 [M + H]+



53





Inter-
B
Method A-1:



me-

MS-ESI:



diate

284 [M + H]+



14





Inter-
B
Method A-1:



me-

MS-ESI:



diate

525 [M + H]+



89









Synthesis of Intermediate 90 (6-(2-methoxyethoxy)-5-methylnicotinic acid)



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Step 1: methyl 6-(2-ethoxyethoxy)-5-methylpyridine-3-carboxylate

6-Chloro-5-methylpyridine-3-carboxylic acid (1.0 g, 5.8 mmol, 1.0 equiv.) and 2-methoxyethanol (665.2 mg, 8.7 mmol, 1.5 equiv.) were dissolved in toluene (20 mL). Then BrettPhos (3.1 g, 5.8 mmol, 1.0 equiv.), Cs2CO3 (3.8 g, 11.7 mmol, 2.0 equiv.) and BrettPhos Pd G3 (528.3 mg, 0.6 mmol, 0.1 equiv.) were added under an atmosphere of nitrogen. The reaction mixture was stirred overnight at ambient temperature, then quenched by the addition of water. The resulting solution was extracted with ethyl acetate, washed with brine, dried over anhydrous Na2SO4 and concentrated under vacuum. The residue was purified by flash column chromatography on silica gel, eluting with ethyl acetate/petroleum ether (1:2) to give methyl 6-(2-ethoxyethoxy)-5-methylpyridine-3-carboxylate (570.0 mg) as a white solid. LCMS Method A-1: [M+H]+=226.


Step 2: 6-(2-methoxyethoxy)-5-methylpyridine-3-carboxylic acid

Methyl 6-(2-methoxyethoxy)-5-methylpyridine-3-carboxylate (570.0 mg, 2.5 mmol, 1.0 equiv.) was dissolved in MeOH (3 mL) and water (3 mL), then LiOH (242.4 mg, 10.1 mmol, 4.0 equiv.) was added. The reaction mixture was stirred overnight at ambient temperature, then concentrated under vacuum. The residue was diluted with water, then adjusted to pH 3 with conc. HCl. The resulting solution was extracted with dichloromethane and concentrated under vacuum. The residue was purified by reverse flash chromatography using the following conditions: column, C18 silica gel; mobile phase, ACN/water, 10% ACN increasing to 100% gradient in 20 min; detector, UV 254 nm. This gave 6-(2-methoxyethoxy)-5-methylpyridine-3-carboxylic acid (375.0 mg) as a white solid. LCMS Method C-1: [M+H]+=212.


The following intermediates were prepared using the same method described for Intermediate 90.

















Starting
Starting




Intermediate
material A
material B
Structure
LCMS data







Intermediate 91


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Method C-1: MS-ESI: 226 [M + H]+









Synthesis of intermediate 92 (5-(3,3-difluorocyclobutoxy)-6-methylpyrazine-2-carboxylic acid)



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Step 1: methyl 5-(3,3-difluorocyclobutoxy)-6-methylpyrazine-2-carboxylate

3,3-Difluorocyclobutan-1-ol (200.0 mg, 1.9 mmol, 1.0 equiv.) was dissolved in THE (20 mL) and cooled to 0° C., then NaH (60% in oil, 111.0 mg, 2.8 mmol, 1.5 equiv.) was added, maintaining the solution at 0° C. After 15 min at 0° C., methyl 5-chloro-6-methylpyrazine-2-carboxylate (345.3 mg, 1.9 mmol, 1.0 equiv.) was added. The reaction mixture was stirred for 16 hours at ambient temperature, then quenched by the addition of saturated aqueous NaHCO3. The resulting solution was concentrated under vacuum. The residue was purified by flash column chromatography on silica gel, eluting with ethyl acetate/petroleum ether (1:1) to give methyl 5-(3,3-difluorocyclobutoxy)-6-methylpyrazine-2-carboxylate (150.0 mg) as a white solid. LCMS Method A-1: [M+H]+=259.


Step 2: 5-(3,3-difluorocyclobutoxy)-6-methylpyrazine-2-carboxylic acid

Methyl 5-(3,3-difluorocyclobutoxy)-6-methylpyrazine-2-carboxylate (150.0 mg, 0.6 mmol, 1.0 equiv.) was dissolved in MeOH (2 mL) and water (2 mL), then NaOH (46.5 mg, 1.2 mmol, 2.0 equiv.) was added. The reaction mixture was heated to 80° C. for 30 min, then cooled to ambient temperature and concentrated under vacuum. The residue was diluted with water, then adjusted to pH 5 with aqueous HCl (6M). The resulting solid was collected by filtration, washed with water and dried under vacuum to give 5-(3,3-difluorocyclobutoxy)-6-methylpyrazine-2-carboxylic acid (105.0 mg) as a white solid. LCMS Method A-1: [M+H]+=245.


The following intermediates were prepared using the same method described for Intermediate 92.

















Starting
Starting




Intermediate
material A
material B
Structure
LCMS data







Intermediate 21


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Method C-1: MS-ESI: 237 [M + H]+









Synthesis of Intermediate 93 (6-((1-(2,2,2-trifluoroethyl)azetidin-3-yl)oxy)nicotinic acid)



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Step 1: methyl 6-[[1-(tert-butoxycarbonyl)azetidin-3-yl]oxy]pyridine-3-carboxylate

tert-butyl 3-hydroxyazetidine-1-carboxylate (1.0 g, 5.8 mmol, 1.0 equiv.) was dissolved in THE (10 mL) and cooled to 0° C., then NaH (60% in mineral oil, 230.9 mg, 5.8 mmol, 1.0 equiv.) was added, maintaining the solution at 0° C. After 30 min at 0° C., methyl 6-bromopyridine-3-carboxylate (1.2 g, 5.8 mmol, 1.0 equiv.) was added. The reaction mixture was stirred overnight at ambient temperature, then quenched by the addition of water. The resulting solution was extracted with ethyl acetate, washed with brine, dried over anhydrous Na2SO4 and concentrated under vacuum to give methyl 6-[[1-(tert-butoxycarbonyl)azetidin-3-yl]oxy]pyridine-3-carboxylate (750.0 mg) as a light yellow oil. LCMS Method A-1: [M+H]+=309.


Step 2: methyl 6-(azetidin-3-yloxy)pyridine-3-carboxylate hydrochloride

Methyl 6-[[1-(tert-butoxycarbonyl)azetidin-3-yl]oxy]pyridine-3-carboxylate (2.0 g, 6.5 mmol, 1.0 equiv.) was dissolved in HCl/1,4-dioxane (4 M, 15 mL). The reaction mixture was stirred for 3 hours at ambient temperature. The precipitated solids were collected by filtration and washed with 1,4-dioxane to give methyl 6-(azetidin-3-yloxy)pyridine-3-carboxylate hydrochloride (1.5 g) as a white solid. LCMS Method A-1: [M+H]+=209.


Step 3: methyl 6-[[1-(2,2,2-trifluoroethyl)azetidin-3-yl]oxy]pyridine-3-carboxylate

Methyl 6-(azetidin-3-yloxy)pyridine-3-carboxylate (1.5 g, 7.2 mmol, 1.0 equiv.) and TEA (5.0 mL, 36.0 mmol, 5.0 equiv.) were dissolved in ACN (10 mL) and cooled to 0° C., then 2,2,2-trifluoroethyl trifluoromethanesulfonate (3.3 g, 14.4 mmol, 2.0 equiv.) was added dropwise, maintaining the solution at 0° C. The reaction mixture was stirred overnight at ambient temperature, then concentrated under vacuum. The residue was purified by flash column chromatography on silica gel, eluting with ethyl acetate/petroleum ether (1:2) to give methyl 6-[[1-(2,2,2-trifluoroethyl)azetidin-3-yl]oxy]pyridine-3-carboxylate (210.0 mg) as a white solid. LCMS Method A-1: [M+H]+=291.


Step 4: 6-[[1-(2,2,2-trifluoroethyl)azetidin-3-yl]oxy]pyridine-3-carboxylic acid

Methyl 6-[[1-(2,2,2-trifluoroethyl)azetidin-3-yl]oxy]pyridine-3-carboxylate (200.0 mg, 0.7 mmol, 1.0 equiv.) was dissolved in MeOH (5 mL) and water (5 mL), then NaOH (55.1 mg, 1.4 mmol, 2.0 equiv.) was added. The reaction mixture was heated to 60° C. overnight, then cooled to ambient temperature and concentrated under vacuum. The residue was dissolved in water, then adjusted to pH 6 with aqueous HCl (2 M). The resulting solution was extracted with ethyl acetate and concentrated under vacuum to give 6-[[1-(2,2,2-trifluoroethyl)azetidin-3-yl]oxy]pyridine-3-carboxylic acid (180.0 mg) as a white solid. LCMS Method A-1: [M+H]+=277.


Synthesis of Intermediate 94 (3-(2-methoxyethoxy)-4-(trifluoromethyl)benzoic acid)



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Step 1: methyl 3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-4-(trifluoromethyl)benzoate

Methyl 3-bromo-4-(trifluoromethyl)benzoate (1.0 g, 3.5 mmol, 1.0 equiv.) was dissolved in DMSO (20 mL), then bis(pinacolato)diboron (1.8 g, 7.0 mmol, 2.0 equiv.), AcOK (1.0 g, 10.6 mmol, 3.0 equiv.) and Pd(dppf)Cl2 (258.5 mg, 0.4 mmol, 0.1 equiv.) were added under an atmosphere of nitrogen. The reaction mixture was heated to 80° C. overnight, then cooled to ambient temperature and diluted with ethyl acetate. The resulting solution was washed with brine, dried over anhydrous Na2SO4 and concentrated under vacuum to give methyl 3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-4-(trifluoromethyl)benzoate (0.9 g) as a yellow oil. LCMS Method A-1: [M+H]+=331.


Step 2: methyl 4-hydroxy-3-(trifluoromethyl)benzoate

Methyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3-(trifluoromethyl)benzoate (1.0 g, 3.0 mmol, 1.0 equiv.) was dissolved in 1,4-dioxane (10 mL), then H2O2 (30% in water, 2 mL) and AcOH (0.5 mL) were added. The reaction mixture was stirred overnight at ambient temperature, then quenched by the addition of water. The resulting solution was extracted with ethyl acetate and concentrated under vacuum. The residue was purified by flash column chromatography on silica gel, eluting with ethyl acetate/petroleum ether (1:1) to give methyl 4-hydroxy-3-(trifluoromethyl)benzoate (400.0 mg) as a yellow oil. LCMS Method A-1: [M−H]=219.


Step 3: methyl 3-(2-methoxyethoxy)-4-(trifluoromethyl)benzoate

Methyl 4-hydroxy-3-(trifluoromethyl)benzoate (400.0 mg, 1.8 mmol, 1.0 equiv.) was dissolved in DMF (10 mL), then Cs2CO3 (1.8 g, 5.5 mmol, 3.0 equiv.) and 2-bromoethyl methyl ether (378.8 mg, 2.7 mmol, 1.5 equiv.) were added. The reaction mixture was heated to 60° C. for 4 hours, then cooled to ambient temperature and diluted with ethyl acetate. The resulting solution was washed with brine and concentrated under vacuum. The residue was purified by flash column chromatography on silica gel, eluting with ethyl acetate/petroleum ether (1:1) to give methyl 3-(2-methoxyethoxy)-4-(trifluoromethyl)benzoate (310.0 mg) as yellow oil. LCMS Method A-1: [M+H]+=279.


Step 4: 3-(2-methoxyethoxy)-4-(trifluoromethyl)benzoic acid

Methyl 3-(2-methoxyethoxy)-4-(trifluoromethyl)benzoate (300.0 mg, 1.1 mmol, 1.0 equiv.) was dissolved in MeOH (3 mL) and water (7 mL), then NaOH (86.3 mg, 2.2 mmol, 2.0 equiv.) was added. The reaction mixture was heated to 80° C. for 2 hours, then cooled to ambient temperature and concentrated under vacuum. The residue was diluted with water, adjusted to pH 4 with aqueous HCl (1 M). The resulting solution was extracted with ethyl acetate and concentrated under vacuum to give 3-(2-methoxyethoxy)-4-(trifluoromethyl)benzoic acid (200.0 mg) as a white solid. LCMS Method B-1: [M−H]=263.


Synthesis of Intermediate 54 (4-(2,2-difluoroethoxy)benzoic acid)



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Step 1: ethyl 4-(2,2-difluoroethoxy)benzoate

Ethyl 4-hydroxybenzoate (1.0 g, 6.0 mmol, 1.0 equiv.) and 2-bromo-1,1-difluoroethane (872.3 mg, 5.3 mmol, 1.0 equiv.) were dissolved in DMF (8 mL), then K2CO3 (2.5 g, 18.1 mmol, 3.0 equiv.) was added. The reaction mixture was heated to 80° C. overnight, then cooled to ambient temperature and diluted with ethyl acetate. The resulting solution was washed with brine, dried over anhydrous Na2SO4 and concentrated under vacuum. The residue was purified by flash column chromatography on silica gel, eluting with ethyl acetate/petroleum ether (1:20) to give ethyl 4-(2,2-difluoroethoxy)benzoate (710.0 mg) as a white solid. LCMS Method A-1: [M−H]=229.


Step 2: 4-(2,2-difluoroethoxy)benzoic acid

Methyl 4-(2,2-difluoroethoxy)benzoate (700.0 mg, 3.0 mmol, 1.0 equiv.) was dissolved in MeOH (2 mL) and water (6 mL), then LiOH (145.6 mg, 6.0 mmol, 2.0 equiv.) was added. The reaction mixture was stirred overnight at ambient temperature, then concentrated under vacuum. The residue was diluted with water, then adjusted to pH 6 with aqueous HCl (4 M). The resulting solid was collected by filtration, washed with water and dried under vacuum to give 4-(2,2-difluoroethoxy)benzoic acid (350.0 mg) as a white solid. LCMS Method A-1: [M−H]=201.


Synthesis of Intermediate 95 (5-bromo-6-(3,3-difluorocyclobutyl)nicotinic acid)



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Step 1: methyl 5-bromo-6-(3,3-difluorocyclobutyl)nicotinate

Methyl 5-bromonicotinate (1.0 g, 4.6 mmol, 1.0 equiv.) and 3,3-difluorocyclobutane-1-carboxylic acid (1.3 g, 9.3 mmol, 2.0 equiv.) were dissolved in DCE (24 mL) and water (20 mL), then Selectfluor (3.3 g, 9.3 mmol, 2.0 equiv.) and TFA (0.35 mL, 4.6 mmol, 1.0 equiv.) were added. This was followed by the addition of aqueous AgNO3 (31.5 mg in 2.4 mL of water, 0.2 mmol, 0.04 equiv.). The reaction mixture was heated to 50° C. overnight, then cooled to ambient temperature and quenched by the addition of water. The resulting solution was extracted with ethyl acetate and concentrated under vacuum. The residue was purified by flash column chromatography on silica gel, eluting with ethyl acetate/petroleum ether (1:2) to give methyl 5-bromo-6-(3,3-difluorocyclobutyl)nicotinate (270.0 mg) as a yellow solid. LCMS Method A-1: [M+H]+=306.


Step 2: 5-bromo-6-(3,3-difluorocyclobutyl)pyridine-3-carboxylic acid

Methyl 5-bromo-6-(3,3-difluorocyclobutyl)pyridine-3-carboxylate (270.0 mg, 0.9 mmol, 1.0 equiv.) was dissolved in MeOH (5 mL) and water (2 mL), then NaOH (70.4 mg, 1.8 mmol, 2.0 equiv.) was added. The reaction mixture was stirred overnight at ambient temperature and concentrated under vacuum. The residue was diluted with water, then adjusted to pH 6 with aqueous HCl (1M). The resulting solution was extracted with ethyl acetate and concentrated under vacuum to give 5-bromo-6-(3,3-difluorocyclobutyl)pyridine-3-carboxylic acid (210.0 mg) as a white solid. LCMS Method C-1: [M+H]+=292.


The following intermediates were prepared using the same method described for Intermediate 95.
















Starting




Intermediate
material
Structure
LCMS data







Intermediate 96


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Method A-1: MS-ESI: 248 [M + H]+









Synthesis of Intermediate 97 (5-fluoro-6-(6-(2,2,2-trifluoroethoxy)spiro[3.3]heptan-2-yl)nicotinic acid)



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Step 1: methyl 5-fluoro-6-[6-oxospiro[3.3]heptan-2-yl]pyridine-3-carboxylate

Methyl 5-fluoropyridine-3-carboxylate (1.0 g, 6.4 mmol, 1.0 equiv.) and 6-oxospiro[3.3]heptane-2-carboxylic acid (1.5 g, 9.7 mmol, 1.5 equiv.) were dissolved in DCE (15 mL) and water (5 mL), then Selectfluor (4.6 g, 12.9 mmol, 2.0 equiv.) and TFA (0.1 mL, 1.3 mmol, 0.2 equiv.) were added. This was followed by the addition of AgNO3 (109.5 mg, 0.6 mmol, 0.1 equiv.). The reaction mixture was heated to 50° C. for 16 hours, then cooled to ambient temperature and quenched by the addition of water. The resulting solution was extracted with dichloromethane, dried over anhydrous Na2SO4 and concentrated under vacuum. The residue was purified by flash column chromatography on silica gel, eluting with ethyl acetate/petroleum ether (1:10) to give methyl 5-fluoro-6-[6-oxospiro[3.3]heptan-2-yl]pyridine-3-carboxylate (150.0 mg) as a white solid. LCMS Method A-1: [M+H]+=264.


Step 2: methyl 5-fluoro-6-[6-hydroxyspiro[3.3]heptan-2-yl]pyridine-3-carboxylate

Methyl 5-fluoro-6-[6-oxospiro[3.3]heptan-2-yl]pyridine-3-carboxylate (600.0 mg, 2.3 mmol, 1.0 equiv.) was dissolved in THE (10 mL), then NaBH4 (172.5 mg, 4.6 mmol, 2.0 equiv.) was added. The reaction mixture was stirred for 2 hours at ambient temperature, then quenched by the addition of water. The resulting solution was extracted with ethyl acetate, dried over anhydrous Na2SO4 and concentrated under vacuum. The residue was purified by flash column chromatography on silica gel, eluting with ethyl acetate/petroleum ether (1:2) to give methyl 5-fluoro-6-[6-hydroxyspiro[3.3]heptan-2-yl]pyridine-3-carboxylate (450.0 mg) as a white solid. LCMS Method C-1: [M+H]+=266.


Step 3: methyl 5-fluoro-6-(6-((methylsulfonyl)oxy)spiro[3.3]heptan-2-yl)nicotinate

Methyl 5-fluoro-6-[6-hydroxyspiro[3.3]heptan-2-yl]pyridine-3-carboxylate (450.0 mg, 1.7 mmol, 1.0 equiv.) and TEA (0.7 mL, 5.1 mmol, 3.0 equiv.) were dissolved in DCM (10 mL), then MsCl (291.5 mg, 2.5 mmol, 1.5 equiv.) was added. The reaction mixture was stirred for 2 hours at ambient temperature then diluted with DCM. The resulting solution was washed with brine, dried over anhydrous Na2SO4 and concentrated under vacuum. The residue was purified by flash column chromatography on silica gel, eluting with ethyl acetate/petroleum ether (1:2) to give methyl 5-fluoro-6-(6-((methylsulfonyl)oxy)spiro[3.3]heptan-2-yl)nicotinate (450.0 mg) as a white solid. LCMS Method A-1: [M+H]+=344.


Step 4: 5-fluoro-6-[6-(2,2,2-trifluoroethoxy)spiro[3.3]heptan-2-yl]pyridine-3-carboxylic acid

2,2,2-Trifluoroethan-1-ol (240.0 mg, 2.4 mmol, 2.0 equiv.) was dissolved in DMF (5 mL) and cooled to 0° C., then NaH (60% in mineral oil, 94.3 mg, 2.4 mmol, 2.0 equiv.) was added, maintaining the solution at 0° C. After 30 min at 0° C., methyl 5-fluoro-6-(6-((methylsulfonyl)oxy)spiro[3.3]heptan-2-yl)nicotinate (400.0 mg, 1.2 mmol, 1.0 equiv.) was added. The reaction mixture was stirred heated to 90° C. for 24 hours, then cooled to ambient temperature and quenched by the addition of water. The resulting solution was extracted with ethyl acetate, washed with brine, dried over anhydrous Na2SO4 and concentrated under vacuum to give 5-fluoro-6-[6-(2,2,2-trifluoroethoxy)spiro[3.3]heptan-2-yl]pyridine-3-carboxylic acid (200.0 mg) as a white solid. LCMS Method A-1: [M+H]+=334.


Synthesis of Intermediate 98 (methyl 4-(1-bromoethyl)-3-fluorobenzoate)



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Step 1: methyl 3-fluoro-4-(1-hydroxyethyl)benzoate

Methyl 3-fluoro-4-formylbenzoate (8.0 g, 43.9 mmol, 1.0 equiv.) was dissolved in THF (20 mL) and cooled to −40° C., then MeMgBr (3M in Et2O) (16.1 mL, 48.3 mmol, 1.1 equiv.) was added dropwise, maintaining the solution at −40° C. under an atmosphere of nitrogen. The reaction mixture was stirred overnight at ambient temperature and then quenched by the addition of saturated aqueous NH4Cl. The resulting solution was extracted with ethyl acetate, dried over anhydrous Na2SO4 and concentrated under vacuum. The residue was purified by flash column chromatography on silica gel, eluting with ethyl acetate/petroleum ether (1:2) to give methyl 3-fluoro-4-(1-hydroxyethyl)benzoate (2.5 g) as a white solid. LCMS Method B-1: [M−H]=197.


Step 2: methyl 4-(1-bromoethyl)-3-fluorobenzoate

Methyl 3-fluoro-4-(1-hydroxyethyl)benzoate (2.5 g, 12.6 mmol, 1.0 equiv.) was dissolved in DCM (50 mL) and cooled to 0° C., then PBr3 (6.8 g, 25.2 mmol, 2.0 equiv.) was added dropwise, maintaining the solution at 0° C. The reaction mixture was stirred for 3 hours at ambient temperature then quenched by the addition of water. The resulting solution was extracted with ethyl acetate, dried over anhydrous Na2SO4 and concentrated under vacuum. The residue was purified by flash column chromatography on silica gel, eluting with ethyl acetate/petroleum ether (1:10) to give methyl 4-(1-bromoethyl)-3-fluorobenzoate (1.1 g) as a pale yellow oil.


Synthesis of Intermediate 99 (methyl 6-(bromomethyl)-5-chloronicotinate)



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Step 1: methyl 5-chloro-6-methylpyridine-3-carboxylate

Methyl 5,6-dichloropyridine-3-carboxylate (2.0 g, 9.7 mmol, 1.0 equiv.) was dissolved in 1,4-dioxane (20 mL), then K2CO3 (2.7 g, 19.4 mmol, 2.0 equiv.), methylboronic acid (0.6 g, 9.7 mmol, 1.0 equiv.) and Pd(dppf)C12 (0.4 g, 0.5 mmol, 0.05 equiv.) were added under an atmosphere of nitrogen. The reaction mixture was heated to 80° C. for 2 hours, then cooled to ambient temperature and concentrated under vacuum. The residue was purified by flash column chromatography on silica gel, eluting with ethyl acetate/petroleum ether (1:1) to give methyl 5-chloro-6-methylpyridine-3-carboxylate (1.3 g) as a yellow solid. LCMS Method A-1: [M+H]+=186.


Step 2: methyl 6-(bromomethyl)-5-chloropyridine-3-carboxylate

Methyl 5-chloro-6-methylpyridine-3-carboxylate (600.0 mg, 3.2 mmol, 1.0 equiv.) was dissolved in CCl4 (10 mL), then NBS (1.7 g, 9.7 mmol, 3.0 equiv.) and AIBN (53.1 mg, 0.3 mmol, 0.1 equiv.) were added. The reaction mixture was heated to 80° C. for 5 hours, then cooled to ambient temperature and quenched by the addition of water. The resulting solution was extracted with ethyl acetate and concentrated under vacuum. The residue was purified by flash column chromatography on silica gel, eluting with ethyl acetate/petroleum ether (1:1) to give methyl 6-(bromomethyl)-5-chloropyridine-3-carboxylate (300.0 mg) as a yellow solid. LCMS Method A-1: [M+H]+=264.


Synthesis of Intermediate 100 (4-(1-(3,3-difluoroazetidin-1-yl)ethyl)-3-fluorobenzoic acid)



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Step 1: methyl 4-[1-(3,3-difluoroazetidin-1-yl)ethyl]-3-fluorobenzoate

Methyl 4-(1-bromoethyl)-3-fluorobenzoate (1.1 g, 4.2 mmol, 1.0 equiv.) was dissolved in DMF (20 mL), then K2CO3 (2.3 g, 16.9 mmol, 4.0 equiv.) and 3,3-difluoroazetidine hydrochloride (818.6 mg, 6.3 mmol, 1.5 equiv.) were added. The reaction mixture was heated to 80° C. overnight, then cooled to ambient temperature and quenched by the addition of water. The resulting solution was extracted with ethyl acetate, dried over anhydrous Na2SO4 and concentrated under vacuum. The residue was purified by flash column chromatography on silica gel, eluting with ethyl acetate/petroleum ether (1:3) to give methyl 4-[1-(3,3-difluoroazetidin-1-yl)ethyl]-3-fluorobenzoate (810.0 mg) as a yellow solid. LCMS Method A-1: [M+H]+=274.


Step 2: 4-[1-(3,3-difluoroazetidin-1-yl)ethyl]-3-fluorobenzoic acid

Methyl 4-[1-(3,3-difluoroazetidin-1-yl)ethyl]-3-fluorobenzoate (800.0 mg, 2.9 mmol, 1.0 equiv.) was dissolved in MeOH (10 mL) and water (10 mL), then LiOH (140.2 mg, 5.9 mmol, 2.0 equiv.) was added. The reaction mixture was stirred overnight at ambient temperature then concentrated under vacuum. The residue was diluted with water, adjusted to pH 4 with conc. HCl, extracted with ethyl acetate, dried over anhydrous Na2SO4 and concentrated under vacuum. The residue was purified by Flash-Prep-HPLC using the following conditions: Column, C18 silica gel; mobile phase, H2O/ACN, 10% ACN increasing to 90% within 30 min; Detector, 254 nm. This gave 4-[1-(3,3-difluoroazetidin-1-yl)ethyl]-3-fluorobenzoic acid (620.0 mg) as a colorless oil. LCMS Method A-1: [M−H]=258.


The following intermediates were prepared using the same method described for Intermediate 100.

















Starting
Starting




Intermediate
material A
material B
Structure
LCMS data







Intermediate 101


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Method C-1: MS-ESI: 291 [M + H]+





Intermediate 102


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Method A-1: MS-ESI: 263 [M + H]+





Intermediate 103


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Method A-1: MS-ESI: 229 [M + H]+





Intermediate 104


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Method B-1: MS-ESI: 226 [M − H]





Intermediate  10


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Method B-1: MS-ESI: 244 [M − H]





Intermediate 105


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Method C-1: MS-ESI: 229 [M + H]+









Synthesis of intermediate 106 (4-((6,6-difluoro-2-azaspiro[3.3]heptan-2-yl)methyl)-3-fluorobenzoic acid)



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Step 1: methyl 4-([6,6-difluoro-2-azaspiro[3.3]heptan-2-yl]methyl)-3-fluorobenzoate

Methyl 3-fluoro-4-formylbenzoate (1.0 g, 5.5 mmol, 1.0 equiv.) and 6,6-difluoro-2-azaspiro[3.3]heptane (877.1 mg, 6.6 mmol, 1.2 equiv.) were dissolved in MeOH (20 mL). After 2 hours, NaBH3CN (690.0 mg, 11.0 mmol, 2.0 equiv.) was added portion wise. The reaction mixture was stirred overnight at ambient temperature, then quenched by the addition of water. The resulting solution was extracted with ethyl acetate, dried over anhydrous Na2SO4 and concentrated under vacuum. The residue was purified by flash column chromatography on silica gel, eluting with ethyl acetate/petroleum ether (1:1) to give methyl 4-([6,6-difluoro-2-azaspiro[3.3]heptan-2-yl]methyl)-3-fluorobenzoate (410.0 mg) as a yellow solid. LCMS Method A-1: [M+H]+=300.


Step 2: 4-([6,6-difluoro-2-azaspiro[3.3]heptan-2-yl]methyl)-3-fluorobenzoic acid

Methyl 4-([6,6-difluoro-2-azaspiro[3.3]heptan-2-yl]methyl)-3-fluorobenzoate (400.0 mg, 1.3 mmol, 1.0 equiv.) was dissolved in MeOH (10 mL) and water (10 mL), then LiOH (128.0 mg, 5.3 mmol, 4.0 equiv.) was added. The reaction mixture was stirred overnight at ambient temperature then concentrated under vacuum. The residue was diluted with water, adjusted to pH 5 with conc. HCl, extracted with dichloromethane and concentrated under vacuum. The residue was purified by Flash-Prep-HPLC using the following conditions: Column, C18 silica gel; mobile phase, H2O/ACN, 10% ACN increasing to 90% within 30 min; Detector, 254 nm. This gave 4-([6,6-difluoro-2-azaspiro[3.3]heptan-2-yl]methyl)-3-fluorobenzoic acid (211.0 mg) as a yellow solid. LCMS Method B-1: [M−H]=284.


Synthesis of Intermediate 107 (2-(2,2,2-trifluoro-1-hydroxyethyl)isonicotinic acid)



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Step 1: methyl 2-(2,2,2-trifluoro-1-hydroxyethyl)pyridine-4-carboxylate

Methyl 2-formylpyridine-4-carboxylate (400.0 mg, 2.4 mmol, 1.0 equiv.) and trifluoromethyltrimethylsilane (344.4 mg, 2.4 mmol, 1.0 equiv.) were dissolved in THF (5 mL) and cooled to −50° C., then TBAF (1M in THF, 4.8 mL, 4.8 mmol, 2.0 equiv.) was added dropwise, maintaining the solution at −50° C. The reaction mixture was stirred for 30 min at ambient temperature then concentrated under vacuum. The residue was purified by flash column chromatography on silica gel, eluting with ethyl acetate/petroleum ether (1:1) to give methyl 2-(2,2,2-trifluoro-1-hydroxyethyl)pyridine-4-carboxylate (215.0 mg) as a pale yellow solid. LCMS Method A-1: [M+H]+=236.


Step 2: 2-(2,2,2-trifluoro-1-hydroxyethyl)pyridine-4-carboxylic acid

Methyl 2-(2,2,2-trifluoro-1-hydroxyethyl)pyridine-4-carboxylate (200.0 mg, 0.9 mmol, 1.0 equiv.) was dissolved in MeOH (5 mL) and water (5 mL), then NaOH (68.0 mg, 1.7 mmol, 2.0 equiv.) was added. The reaction mixture was heated to 80° C. for 2 hours, then cooled to ambient temperature and concentrated under vacuum. The residue was diluted with water, then adjusted to pH 5 with aqueous HCl (6M). The resulting solution was extracted with ethyl acetate and concentrated under vacuum. The residue was purified by Flash-Prep-HPLC using the following conditions: Column, C18 silica gel; mobile phase, A: water with 0.1% TFA; B: ACN, (20% Phase B up to 60% in 10 min); Detector, UV 254 nm. This gave 2-(2,2,2-trifluoro-1-hydroxyethyl)pyridine-4-carboxylic acid (150.0 mg) as a pale yellow oil. LCMS Method A-1: [M+H]+=222.


Synthesis of Intermediate 108 (2-(1-hydroxypropyl)isonicotinic acid)



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Step 1: methyl 2-(1-hydroxypropyl)pyridine-4-carboxylate

Methyl 2-formylpyridine-4-carboxylate (500.0 mg, 3.0 mmol, 1.0 equiv.) was dissolved in THF (20 mL) and cooled to 0° C., then EtMgBr (1M in THF, 6.1 mL, 6.1 mmol, 2.0 equiv.) was added dropwise under an atmosphere of nitrogen, maintaining the solution at 0° C. The reaction mixture was stirred for 3 hours at ambient temperature then quenched by the addition of water. The resulting solution was extracted with ethyl acetate and concentrated under vacuum. The residue was purified by flash column chromatography on silica gel, eluting with ethyl acetate/petroleum ether (1:2) to give methyl 2-(1-hydroxypropyl)pyridine-4-carboxylate (220.0 mg) as yellow oil. LCMS Method A-1: [M+H]+=196.


Step 2: 2-(1-hydroxypropyl)pyridine-4-carboxylic acid

Methyl 2-(1-hydroxypropyl)pyridine-4-carboxylate (300.0 mg, 1.5 mmol, 1.0 equiv.) was dissolved in MeOH (3 mL) and water (7 mL), then NaOH (122.9 mg, 3.1 mmol, 2.0 equiv.) was added. The reaction mixture was stirred overnight at ambient temperature then concentrated under vacuum. The residue was diluted with water, then adjusted to pH 6 with aqueous HCl (lM). The resulting solution was extracted with ethyl acetate, washed with brine, dried over anhydrous Na2SO4 and concentrated under vacuum to give 2-(1-hydroxypropyl)pyridine-4-carboxylic acid (150.0 mg) as a yellow solid. LCMS Method A-1: [M+H]+=182.


Synthesis of Intermediate 109 (4-(4-hydroxytetrahydro-2H-pyran-4-yl)benzoic acid)



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Step 1: methyl 4-(4-hydroxyoxan-4-yl)benzoate

Methyl 4-iodobenzoate (4.0 g, 15.3 mmol, 1.0 equiv.) was dissolved in THF (60 mL) and cooled to −50° C., then i-PrMgCl (1M in THF, 15.3 mL, 15.3 mmol, 1.0 equiv.) was added dropwise under an atmosphere of nitrogen, maintaining the solution at −50° C. The reaction mixture was stirred for 1 hour at −50° C., then a solution of tetrahydro-4H-pyran-4-one (1.5 g, 15.3 mmol, 1.0 equiv.) in THE (10 mL) was added dropwise at −50° C. The reaction mixture was stirred overnight at ambient temperature and then quenched by the addition of saturated aqueous NH4Cl at 0° C. The resulting solution was extracted with ethyl acetate, dried over anhydrous Na2SO4 and concentrated under vacuum. The residue was purified by flash column chromatography on silica gel, eluting with ethyl acetate/petroleum ether (1:1) to give methyl 4-(4-hydroxyoxan-4-yl)benzoate (520.0 mg) as a yellow solid. LCMS Method A-1: [M−H]=235.


Step 2: 4-(4-hydroxyoxan-4-yl)benzoic acid

Methyl 4-(4-hydroxyoxan-4-yl)benzoate (500.0 mg, 2.1 mmol, 1.0 equiv.) was dissolved in MeOH (10 mL) and water (10 mL), then LiOH (101.4 mg, 4.2 mmol, 2.0 equiv.) was added. The reaction mixture was stirred overnight at ambient temperature then concentrated under vacuum. The residue was diluted with water, then adjusted to pH 5 with concentrated HCl. The resulting solids were collected by filtration, washed with water and dried under vacuum to give 4-(4-hydroxyoxan-4-yl)benzoic acid (350.0 mg) as a white solid. LCMS Method B-1: [M−H]=221.


The following intermediates were prepared using the same method described for Intermediate 109.

















Starting
Starting




Intermediate
material A
material B
Structure
LCMS data







Intermediate 110


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Method B-1: MS-ESI: 256 [M − H]





Intermediate 111


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Method B-1: MS-ESI: 255 [M − H]





Intermediate  56


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Method B-1: MS-ESI: 255 [M − H]





Intermediate 112


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Method B-1: MS-ESI: 273 [M − H]









Synthesis of Intermediate 113 (4-((3,3-difluorocyclobutyl)(hydroxy)methyl)benzoic acid)



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Step 1: 3,3-difluorocyclobutane-1-carbaldehyde

(3,3-Difluorocyclobutyl) methanol (2.0 g, 16.4 mmol, 1.0 equiv.) was dissolved in DCM (10 mL), then Dess-Martin reagent (10.4 g, 24.6 mmol, 1.5 equiv.) was added. The reaction mixture was stirred for 2 hours at ambient temperature then quenched by the addition of aqueous Na2S2O3. After stirring for 10 min at ambient temperature, the resulting solution was extracted with ether, washed with saturated aqueous NaHCO3, dried over anhydrous MgSO4 and concentrated under vacuum at 0° C. to give 3,3-difluorocyclobutane-1-carbaldehyde (610.0 mg) as a yellow oil. LCMS Method A-1: [M+H]+=121.


Steps 2-3: 4-[(3,3-difluorocyclobutyl)(hydroxy)methyl]benzoic acid

The title compound was prepared using the same methods described for Intermediate 109, Steps 1-2. LCMS Method A-1: [M−H] 241.


Synthesis of Intermediate 114 (6-(2-hydroxybutyl)nicotinic acid)



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Step 1: 5-bromo-6-methylpyridine-3-carboxylic acid

Ethyl 5-bromo-6-methylpyridine-3-carboxylate (800.0 mg, 3.3 mmol, 1.0 equiv.) was dissolved in MeOH (8 mL) and water (8 mL), then NaOH (262.2 mg, 6.6 mmol, 2.0 equiv.) was added. The reaction mixture was heated to 80° C. for 2 hours, then cooled to ambient temperature and concentrated under vacuum. The residue was diluted with water, adjusted to pH 6 with conc. HCl, extracted with ethyl acetate and concentrated under vacuum to give 5-bromo-6-methylpyridine-3-carboxylic acid (675.0 mg) as a white solid. LCMS Method A-1: [M+H]+=216.


Step 2: 6-(2-hydroxybutyl)pyridine-3-carboxylic acid

5-Bromo-6-methylpyridine-3-carboxylic acid (300.0 mg, 1.4 mmol, 1.0 equiv.) was dissolved in THE (8 mL) and cooled to −78° C., then n-BuLi (2.5 M in hexane, 1.4 mL, 3.5 mmol, 2.5 equiv.) was added dropwise under an atmosphere of nitrogen, maintaining the reaction temperature at −78° C. After 1 hour at −78° C., propionaldehyde (80.7 mg, 1.4 mmol, 1.0 equiv.) was added. The reaction mixture was stirred for 1 hour at ambient temperature, then quenched by the addition of saturated aqueous NH4Cl. The resulting solution was extracted with ethyl acetate and concentrated under vacuum. The residue was purified by reverse flash-HPLC using the following conditions: column, C18 silica gel; mobile phase, A: water with 0.1% TFA, B: ACN, 10% ACN to 50% gradient in 30 min; detector, UV 254 nm. This gave 6-(2-hydroxybutyl)pyridine-3-carboxylic acid (70.0 mg) as a white solid. LCMS Method B-1: [M−H]=194.


Synthesis of Intermediate 115 (2-ethyl-2,3-dihydro-1H-indene-5-carboxylic acid)



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Step 1: ethyl 2-[(4-bromophenyl)methyl]butanoate

Ethyl butyrate (14.3 g, 109.8 mmol, 1.0 equiv.) was dissolved in THE (150 mL) and cooled to −78° C., then LDA (2.0 M in THF, 54.9 mL, 109.8 mmol, 1.0 equiv.) was added dropwise under an atmosphere of nitrogen, maintaining the solution at −78° C. After 30 min at −78° C., a solution of 1-bromo-4-(bromomethyl)benzene (27.5 g, 109.8 mmol, 1.0 equiv.) in THE (100 mL) was added at −78° C. The reaction mixture was stirred for 12 hours at ambient temperature, then quenched by the addition of water. The resulting solution was extracted with ethyl acetate and concentrated under vacuum. The residue was purified by flash column chromatography on silica gel, eluting with ethyl acetate/petroleum ether (1:10) to give ethyl 2-[(4-bromophenyl)methyl]butanoate (20.0 g) as a yellow oil.


Step 2: 2-[(4-bromophenyl)methyl]butanoic acid

Ethyl 2-[(4-bromophenyl)methyl]butanoate (20.0 g, 70.1 mmol, 1.0 equiv.) was dissolved in EtOH (100 mL), then a solution of NaOH in water (10% wt., 100.0 mL, 250.0 mmol, 3.6 equiv.) was added. The reaction mixture was heated to 80° C. for 3 hours, then cooled to ambient temperature and concentrated under vacuum. The residue was diluted with water, adjusted to pH 5 with aqueous HCl (4 M). The resulting solids were collected by filtration and dried under vacuum to give 2-[(4-bromophenyl)methyl]butanoic acid (12.0 g) as a yellow solid. LCMS Method B-1: [M−H]=255.


Step 3: 6-bromo-2-ethyl-2,3-dihydroinden-1-one

2-[(4-Bromophenyl)methyl]butanoic acid (18.0 g, 70.0 mmol, 1.0 equiv.) was dissolved in SOCl2 (50 mL). The reaction mixture was heated to reflux for 3 hours, then cooled to ambient temperature and concentrated under vacuum. The residue was dissolved in DCM (120 mL) and cooled to 0° C., then AlCl3 (10.0 g, 75.0 mmol, 1.1 equiv.) was added in portions. The resulting solution was stirred for addition 5 hours at 50° C., then cooled to ambient temperature and concentrated under vacuum. The residue was purified by flash column chromatography on silica gel, eluting with ethyl acetate/petroleum ether (1:10) to give 6-bromo-2-ethyl-2,3-dihydroinden-1-one (14.0 g) as a yellow solid. 1H NMR (400 MHz, CDCl3): δ 7.89 (d, J=5.6 Hz, 1H), 7.71-7.68 (m, 1H), 7.41-7.35 (m, 1H), 3.32-3.26 (m, 1H), 2.81-2.76 (m, 1H), 2.71-2.64 (m, 1H), 2.03-1.93 (m, 1H), 1.59-1.54 (m, 1H), 1.02 (t, J=7.2 Hz, 3H).


Step 4: 5-bromo-2-ethyl-2,3-dihydro-1H-indene

6-Bromo-2-ethyl-2,3-dihydroinden-1-one (14.0 g, 58.6 mmol, 1.0 equiv.) was dissolved in Et3SiH (23 mL) and TFA (40 mL). The reaction mixture was stirred for 12 hours at ambient temperature then quenched by the addition of water. The resulting solution was adjusted to pH 7-8 with Na2CO3 powder, then extracted with ethyl acetate, washed with brine, dried over anhydrous Na2SO4 and concentrated under vacuum to give 5-bromo-2-ethyl-2,3-dihydro-1H-indene (1.1 g) as a colorless oil. 1H NMR (400 MHz, CDCl3): δ 7.25-7.24 (m, 1H), 7.20-7.16 (m, 1H), 6.98 (d, J=8.0 Hz, 1H), 2.98-2.89 (m, 2H), 2.54-2.42 (m, 2H), 2.36-2.27 (m, 1H), 1.49-1.45 (m, 2H), 0.90 (t, J=7.2 Hz, 3H).


Step 5: methyl 2-ethyl-2,3-dihydro-1H-indene-5-carboxylate

5-Bromo-2-ethyl-2,3-dihydro-1H-indene (500.0 mg, 2.2 mmol, 1.0 equiv.) was dissolved in MeOH (5 mL) and DMF (1 mL), then TEA (3.0 mL, 21.5 mmol, 10.0 equiv.) and Pd(dppf)Cl2·CH2Cl2 (506.6 mg, 0.6 mmol, 0.3 equiv.) were added under an atmosphere of nitrogen. The reaction mixture was heated to 100° C. overnight under an atmosphere of CO (20 atm). The mixture was cooled to ambient temperature, then quenched by the addition of water. The resulting solution was extracted with ethyl acetate, dried over anhydrous Na2SO4 and concentrated under vacuum. The residue was purified by flash column chromatography on silica gel, eluting with ethyl acetate/petroleum ether (1:1) to give methyl 2-ethyl-2,3-dihydro-1H-indene-5-carboxylate (305.0 mg) as a yellow oil. LCMS Method A-1: [M+H]+=205.


Step 6: 2-ethyl-2,3-dihydro-1H-indene-5-carboxylic acid

Methyl 2-ethyl-2,3-dihydro-1H-indene-5-carboxylate (300.0 mg, 1.5 mmol, 1.0 equiv.) was dissolved in MeOH (5 mL) and water (5 mL), then NaOH (117.5 mg, 2.9 mmol, 2.0 equiv.) was added. The reaction mixture was heated to 80° C. for 2 hours, then cooled to ambient temperature and concentrated under vacuum. The residue was diluted with water, adjusted to pH 6 with aqueous HCl (1M). The solids were collected by filtration and dried under vacuum to give 2-ethyl-2,3-dihydro-1H-indene-5-carboxylic acid (210.0 mg) as a white solid. LCMS Method B-1: [M−H]=189.


Synthesis of Intermediate 116 (4-(1-cyano-4,4-difluorocyclohexyl)benzoic acid)



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Step 1: 1-(4-bromophenyl)-4,4-difluorocyclohexane-1-carbonitrile

1-(4-Bromophenyl)-4-oxocyclohexane-1-carbonitrile (700.0 mg, 2.5 mmol, 1.0 equiv.) was dissolved in DCM (20 mL) and cooled to 0° C., then DAST (610.0 mg, 3.8 mmol, 1.5 equiv.) was added dropwise, maintaining the solution at 0° C. The reaction mixture was stirred for 15 hours at 40° C., then cooled to 0° C. and quenched by the addition ice-water. The resulting solution was extracted with dichloromethane then concentrated under vacuum. The residue was purified by flash column chromatography on silica gel, eluting with ethyl acetate/petroleum ether (2:3) to give 1-(4-bromophenyl)-4,4-difluorocyclohexane-1-carbonitrile (670.0 mg) as a white solid.


Step 2: 4-(1-cyano-4,4-difluorocyclohexyl)benzoic acid

1-(4-Bromophenyl)-4,4-difluorocyclohexane-1-carbonitrile (550.0 mg, 1.8 mmol, 1.0 equiv.) was dissolved in THE (20 mL) and cooled to −78° C., then n-BuLi (2.5M in THF, 0.8 mL, 2.0 mmol, 1.1 equiv.) was added dropwise, maintaining the solution at -78° C. After 30 min at −78° C., dry-ice (2.0 g, 45.4 mmol, 24.8 equiv.) was added at −78° C. The reaction mixture was stirred for an additional 1 hour at −30° C. to −40° C., then quenched by the addition of water. The resulting solution was adjusted to pH 4 with aqueous HCl (1 M), extracted with ethyl acetate and concentrated under vacuum. The residue was purified by flash column chromatography on silica gel, eluting with dichloromethane/methanol (9:1) to give 4-(1-cyano-4,4-difluorocyclohexyl)benzoic acid (550.0 mg) as a white solid. LCMS Method B-1: [M−H]=264.


Synthesis of Intermediate 117 (3-(2-hydroxyethyl)-4-(trifluoromethyl)benzoic acid) and intermediate 118 (3-(1-hydroxyethyl)-4-(trifluoromethyl)benzoic acid)



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Step 1: methyl 3-ethenyl-4-(trifluoromethyl)benzoate

Methyl 3-bromo-4-(trifluoromethyl)benzoate (2.0 g, 7.1 mmol, 1.0 equiv.) and 2-ethenyl-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (1.3 g, 8.6 mmol, 1.2 equiv.) were dissolved in 1,4-dioxane (30 mL) and water (5 mL), then Cs2CO3 (4.6 g, 14.2 mmol, 2.0 equiv.) and Pd(dppf)Cl2 (1.0 g, 1.4 mmol, 0.2 equiv.) were added under an atmosphere of nitrogen. The reaction mixture was heated to 90° C. for 15 hours, then cooled to ambient temperature and concentrated under vacuum. The residue was purified by flash column chromatography on silica gel, eluting with ethyl acetate/petroleum ether (1:5) to give methyl 3-ethenyl-4-(trifluoromethyl)benzoate (1.4 g) as a yellow solid. LCMS Method A-1: [M+H]+=231.


Step 2: methyl 3-(2-hydroxyethyl)-4-(trifluoromethyl)benzoate and methyl 3-(1-hydroxyethyl)-4-(trifluoromethyl)benzoate

Methyl 3-ethenyl-4-(trifluoromethyl)benzoate (1.3 g, 5.5 mmol, 1.0 equiv.) was dissolved in THE (40 mL) and cooled to 0° C., then BH3-Me2S (10 M in THF, 2.1 mL, 21.0 mmol, 4.0 equiv.) was added dropwise, maintaining the solution at 0° C. The reaction mixture was stirred for 2 hours at ambient temperature then cooled back down to 0° C. To the mixture was added aqueous NaOH (30% wt., 3.4 mL, 26.1 mmol, 4.7 equiv.) and aqueous H2O2 (30% wt., 1.4 g, 12.6 mmol, 2.3 equiv.) dropwise at 0° C. The resulting mixture was stirred for an additional 2 hours at ambient temperature, then quenched by the addition of water. The resulting solution was extracted with ethyl acetate, washed with brine, dried over anhydrous Na2SO4 and concentrated under vacuum to give mixture of methyl 3-(2-hydroxyethyl)-4-(trifluoromethyl)benzoate (127A) and methyl 3-(1-hydroxyethyl)-4-(trifluoromethyl)benzoate (127B) (1.4 g) as yellow crude oil. LCMS Method C-1: [M+H]+=249.


Step 3: 3-(2-hydroxyethyl)-4-(trifluoromethyl)benzoic acid and 3-(1-hydroxyethyl)-4-(trifluoromethyl)benzoic acid

The mixture of methyl 3-(2-hydroxyethyl)-4-(trifluoromethyl)benzoate and methyl 3-(1-hydroxyethyl)-4-(trifluoromethyl)benzoate (1.3 g, 5.1 mmol, 1.0 equiv.) was dissolved in MeOH (10 mL) and water (1 mL), then LiOH (486.3 mg, 20.3 mmol, 4.0 equiv.) was added. The reaction mixture was stirred for 4 hours at ambient temperature then concentrated under vacuum. The residue was diluted with water, then adjusted to pH 4 with aqueous HCl (1 M). The resulting solution was extracted with ethyl acetate and concentrated under vacuum. The residue was purified by flash column chromatography on silica gel, eluting with ethyl acetate/petroleum ether (1:9) to give the mixture of 3-(2-hydroxyethyl)-4-(trifluoromethyl)benzoic acid (intermediate 117) and 3-(1-hydroxyethyl)-4-(trifluoromethyl)benzoic acid (intermediate 118) (710.0 mg) as a white solid. LCMS Method B-1: [M−H]=233.


The following intermediates were prepared using the same method described for Intermediates 117/118.
















Starting




Intermediate
material
Structure
LCMS data







Intermediate 119


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Method B-1: MS-ESI: 233 [M − H]





Intermediate 120


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Method B-1: MS-ESI: 233 [M − H]









Synthesis of Intermediate 121 (4-((1-(2,2,2-trifluoroethyl)piperidin-4-yl)methyl)benzoic acid)



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Step 1: tert-butyl 4-[[4-(methoxycarbonyl)phenyl]methylidene]piperidine-1-carboxylate

Methyl 4-[(diethoxyphosphoryl)methyl]benzoate (1.0 g, 3.5 mmol, 1.0 equiv.) was dissolved in THE (10 mL) and cooled to 0° C., then NaH (60% in mineral oil, 139.7 mg, 3.5 mmol, 1.0 equiv.) was added, maintaining the solution at 0° C. After 30 min at 0° C., tert-butyl 4-oxopiperidine-1-carboxylate (703.0 mg, 3.5 mmol, 1.0 equiv.) was added. The reaction mixture was stirred overnight at ambient temperature, then quenched by the addition of water. The resulting solution was extracted with ethyl acetate then concentrated under vacuum. The residue was purified by flash column chromatography on silica gel, eluting with ethyl acetate/petroleum ether (1:2) to give tert-butyl 4-[[4-(methoxycarbonyl)phenyl]methylidene]piperidine-1-carboxylate (550.0 mg) as a yellow oil. LCMS Method A-1: [M+H]+=332.


Step 2: tert-butyl 4-[[4-(methoxycarbonyl)phenyl]methyl]piperidine-1-carboxylate

tert-Butyl 4-[[4-(methoxycarbonyl)phenyl]methylidene]piperidine-1-carboxylate (500.0 mg, 1.5 mmol, 1.0 equiv.) was dissolved in MeOH (10 mL), then Pd/C (10% wt., 160.6 mg) was added. The mixture was sparged with nitrogen, placed under an atmosphere of hydrogen gas (balloon), then stirred overnight at ambient temperature. The solids were removed by filtration and the filtrate was concentrated under vacuum to give tert-butyl 4-[[4-(methoxycarbonyl)phenyl]methyl]piperidine-1-carboxylate (480.0 mg) as a pale yellow oil. LCMS Method A-1: [M+H]+=334.


Step 3: methyl 4-(piperidin-4-ylmethyl)benzoate hydrochloride

tert-Butyl 4-[[4-(methoxycarbonyl)phenyl]methyl]piperidine-1-carboxylate (500.0 mg, 1.5 mmol, 1.0 equiv.) was dissolved in HCl/1,4-dioxane (4 M, 15 mL). The reaction mixture was stirred for 2 hours at ambient temperature and concentrated under vacuum to give methyl 4-(piperidin-4-ylmethyl)benzoate hydrochloride (450.0 mg) as a yellow solid. LCMS Method A-1: [M+H]+=234.


Step 4: methyl 4-[[1-(2,2,2-trifluoroethyl)piperidin-4-yl]methyl]benzoate

Methyl 4-(piperidin-4-ylmethyl)benzoate hydrochloride (400.0 mg, 1.7 mmol, 1.0 equiv.) and TEA (0.7 mL, 5.1 mmol, 3.0 equiv.) were dissolved in ACN (5 mL) and cooled to 0° C., then 2,2,2-trifluoroethyl trifluoromethanesulfonate (596.9 mg, 2.6 mmol, 1.5 equiv.) was added, maintaining the solution at 0° C. The reaction mixture was stirred overnight at ambient temperature and quenched by the addition of water. The resulting solution was extracted with ethyl acetate and concentrated under vacuum. The residue was purified by flash column chromatography on silica gel, eluting with ethyl acetate/petroleum ether (1:2) to give methyl 4-[[1-(2,2,2-trifluoroethyl)piperidin-4-yl]methyl]benzoate (350.0 mg) as a yellow oil. LCMS Method A-1: [M+H]+=316.


Step 5: 4-[[1-(2,2,2-trifluoroethyl)piperidin-4-yl]methyl]benzoic acid

Methyl 4-[[1-(2,2,2-trifluoroethyl)piperidin-4-yl]methyl]benzoate (350.0 mg, 1.1 mmol, 1.0 equiv.) was dissolved in MeOH (5 mL) and water (5 mL), then NaOH (88.8 mg, 2.2 mmol, 2.0 equiv.) was added. The reaction mixture was heated to 60° C. for 3 hours, then cooled to ambient temperature and concentrated under vacuum. The residue was diluted with water, then adjusted to pH 6 with aqueous HCl (4 M). The resulting solution was extracted with ethyl acetate then concentrated under vacuum. The residue was purified by Flash-Prep-HPLC using the following conditions: Column, C18 silica gel; mobile phase Water (0.1% TFA) and ACN (10% Phase B up to 50% in 10 min); Detector, UV 254 nm. This gave 4-[[1-(2,2,2-trifluoroethyl)piperidin-4-yl]methyl]benzoic acid (320.0 mg) as a white solid. LCMS Method A-1: [M−H]=300.


Synthesis of Intermediate 122 (3-(5-cyclopropyl-1,2,4-oxadiazol-3-yl)benzoic acid)



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Step 1: methyl 3-(N-hydroxycarbamimidoyl)benzoate

Methyl 3-cyanobenzoate (1.0 g, 6.2 mmol, 1.0 equiv.) was dissolved in MeOH (10 mL), then K2CO3 (1.3 g, 9.3 mmol, 1.5 equiv.) and NH2OH·HCl (862.4 mg, 12.4 mmol, 2.0 equiv.) were added. The reaction mixture was heated to 80° C. for 3 hours, then cooled to ambient temperature. The solids were removed by filtration and the filtrate was concentrated under vacuum to give methyl 3-(N-hydroxycarbamimidoyl)benzoate (1.1 g) as a white oil. LCMS Method A-1: [M+H]+=195.


Step 2: methyl 3-(5-cyclopropyl-1,2,4-oxadiazol-3-yl)benzoate

Methyl 3-(N-hydroxycarbamimidoyl)benzoate (900.0 mg, 4.6 mmol, 1.0 equiv.) was dissolved in pyridine (100 mL), then cyclopropanecarbonyl chloride (484.5 mg, 4.6 mmol, 1.0 equiv.) was added. The reaction mixture was heated to 100° C. overnight, then cooled to ambient temperature and concentrated under vacuum. The residue was purified by Flash-Prep-HPLC using the following conditions: Column, C18 silica gel; mobile phase, ACN/H2O, 10% ACN increasing to 90% within 30 min; Detector, 254 nm. This gave methyl 3-(5-cyclopropyl-1,2,4-oxadiazol-3-yl)benzoate (523 mg) as a yellow oil. LCMS Method A-1: [M+H]+=245.


Step 3: 3-(5-cyclopropyl-1,2,4-oxadiazol-3-yl)benzoic acid

Methyl 3-(5-cyclopropyl-1,2,4-oxadiazol-3-yl)benzoate (500.0 mg, 2.0 mmol, 1.0 equiv.) was dissolved in MeOH (5 mL) and water (5 mL), then NaOH (163.8 mg, 4.1 mmol, 2.0 equiv.) was added. The reaction mixture was heated to 80° C. for 2 hours, then cooled to ambient temperature and concentrated under vacuum. The residue was purified by Flash-Prep-HPLC using the following conditions: Column, C18 silica gel; mobile phase, ACN/H2O, 10% ACN increasing to 100% within 40 min; Detector, 254 nm. This gave 3-(5-cyclopropyl-1,2,4-oxadiazol-3-yl)benzoic acid (315.0 mg) as a white solid. LCMS Method A-1: [M+H]+=231.


Synthesis of Intermediate 123 (3-(5-cyclopropyl-1,2,4-oxadiazol-3-yl)benzoic acid)



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Step 1: 4-bromo-1-[3-(methoxymethyl)phenyl]pyrazole

3-(Methoxymethyl)phenylboronic acid (500.0 mg, 3.0 mmol, 1.0 equiv.) and 4-bromopyrazole (487.0 mg, 3.3 mmol, 1.1 equiv.) were dissolved in DCM (20 mL), then Cu(AcO)2 (656.6 mg, 3.6 mmol, 1.2 equiv.) and pyridine (0.5 mL, 6.0 mmol, 2.0 equiv.) were added under an atmosphere of nitrogen. The reaction mixture was stirred overnight at ambient temperature then diluted with ethyl acetate. The resulting solution was washed with brine and concentrated under vacuum. The residue was purified by flash column chromatography on silica gel, eluting with ethyl acetate/petroleum ether (1:4) to give 4-bromo-1-[3-(methoxymethyl)phenyl]pyrazole (420.0 mg) as a white solid. LCMS Method A-1: [M+H]+=267.


Step 2: 1-[3-(methoxymethyl)phenyl]-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazole

4-Bromo-1-[3-(methoxymethyl)phenyl]pyrazole (400.0 mg, 1.5 mmol, 1.0 equiv.) and bis(pinacolato)diboron (760.5 mg, 3.0 mmol, 2.0 equiv.) were dissolved in DMSO (10 mL), then AcOK (440.9 mg, 4.5 mmol, 3.0 equiv.) and Pd(dppf)C12 (109.6 mg, 0.15 mmol, 0.1 equiv.) were added under an atmosphere of nitrogen. The reaction mixture was heated to 80° C. overnight, then cooled to ambient temperature and diluted with ethyl acetate. The resulting solution was washed with brine and concentrated under vacuum. The residue was purified by flash column chromatography on silica gel, eluting with ethyl acetate/petroleum ether (1:4) to give 1-[3-(methoxymethyl)phenyl]-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazole (312.0 mg) as a white solid. LCMS Method C-1: [M+H]+=315.


The following intermediates were prepared using the same method described for Intermediate 123.
















Starting




Intermediate
material
Structure
LCMS data







Intermediate 124


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Method C-1: MS-ESI: 315 [M + H]+









Synthesis of Intermediate 125 (1-(3-cyclopropylphenyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole)



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Step 1: 4-bromo-1-(3-cyclopropylphenyl)pyrazole

1-Bromo-3-cyclopropylbenzene (1.0 g, 5.1 mmol, 1.0 equiv.) and 4-bromopyrazole (894.9 mg, 6.1 mmol, 1.2 equiv.) were dissolved in DMSO (20 mL), then K2CO3 (2.1 g, 15.2 mmol, 3.0 equiv.), quinolin-8-ol (73.7 mg, 0.5 mmol, 0.1 equiv.) and CuI (96.6 mg, 0.5 mmol, 0.1 equiv.) were added under an atmosphere of nitrogen. The reaction mixture was heated to 110° C., then cooled to ambient temperature and diluted with ethyl acetate. The resulting solution was washed with brine and concentrated under vacuum. The residue was purified by flash column chromatography on silica gel, eluting with ethyl acetate/petroleum ether (1:4) to give 4-bromo-1-(3-cyclopropylphenyl)pyrazole (410.0 mg) as a white solid. LCMS Method A-1: [M+H]+=263.


Step 2: 1-(3-cyclopropylphenyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazole

4-Bromo-1-(3-cyclopropylphenyl)pyrazole (800.0 mg, 3.0 mmol, 1.0 equiv.) and bis(pinacolato)diboron (926.4 mg, 3.6 mmol, 1.2 equiv.) were dissolved in DMSO (10 mL), then AcOK (895.1 mg, 9.1 mmol, 3.0 equiv.) and Pd(dppf)Cl2 (222.5 mg, 0.3 mmol, 0.1 equiv.) were added under an atmosphere of nitrogen. The reaction mixture was heated to 80° C. overnight, then cooled to ambient temperature and diluted with ethyl acetate. The resulting solution was washed with brine and concentrated under vacuum. The residue was purified by flash column chromatography on silica gel, eluting with ethyl acetate/petroleum ether (1:4) to give 1-(3-cyclopropylphenyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazole (305.0 mg) as a white solid. LCMS Method A-1: [M+H]+=311.


Example 1: 5-chloro-N-(5,6-difluoro-1H-indol-3-yl)-6-(6,6-difluoro-2-azaspiro[3.3]heptan-2-yl)nicotinamide (Compound 101)



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5-Chloro-6-[6,6-difluoro-2-azaspiro[3.3]heptan-2-yl]pyridine-3-carboxylic acid (150.0 mg, 0.5 mmol, 1.0 equiv.) and HATU (296.4 mg, 0.8 mmol, 1.5 equiv.) were dissolved in DMF (4.0 mL), then 5,6-difluoro-1H-indol-3-amine hydrogen chloride (164.1 mg, 0.8 mmol, 1.5 equiv.) and DIEA (0.3 mL, 2.1 mmol, 4.0 equiv.) were added. The reaction mixture was stirred for 2 hours at ambient temperature and then quenched by the addition of water. The resulting mixture was extracted with ethyl acetate, washed with brine, dried over anhydrous Na2SO4 and concentrated under vacuum. The residue was purified by Prep-HPLC with the following conditions: Column, SunFire Prep C18 OBD Column, 19*150 mm, 5 m 10 nm; mobile phase, Water (0.1% FA) and ACN (5000 Phase B up to 64% o in 10 min); Detector, UV 254 nm. This resulted in 5-chloro-N-(5,6-difluoro-1H-indol-3-yl)-6-[6, 6-difluoro-2-azaspiro[3.3]heptan-2-yl]pyridine-3-carboxamide (59.9 mg, 26.3%) as a white solid. LCMS Method C: [M+H]+=439. 1H NMR (400 MHz, DMSO-d6): δ 11.09 (s, 1H), 10.01 (s, 1H), 8.70 (s, 1H), 8.22 (s, 1H), 7.91-7.86 (m, 1H), 7.84 (s, 1H), 7.40-7.35 (m, 1H), 4.39 (s, 4H), 2.93-2.87 (in, 4H).


The following analogs were prepared using the same method described for Example 1.


















Starting





Compound
materials

LCMS


Example
#
Used
Structure
data







Example  2
107
Intermediate 43/ Intermediate 3


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Method F: MS-ESI: 418 [M + H]+.





Example  3
148
Intermediate 43/ Intermediate 20


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Method C: MS-ESI: 401 [M + H]+.





Example  4
154
Intermediate 43/ Intermediate 5


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Method C: MS-ESI: 411 [M + H]+.





Example  5
137
Intermediate 43/ Intermediate 6


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Method C: MS-ESI: 399 [M + H]+.





Example  6
109
Intermediate 43/ Intermediate 25


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Method B: MS-ESI: 379 [M + H]+.





Example  7
155
Intermediate 43/ Intermediate 23


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Method C: MS-ESI: 413 [M + H]+.





Example  8
150
Intermediate 43/. Intermediate 27


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Method C: MS-ESI: 424 [M + H]+.





Example  9
151
Intermediate 43/ Intermediate 28


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Method C: MS-ESI: 433 [M + H]+.





Example 10
153
Intermediate 50/ Intermediate 30


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Method F: MS-ESI: 415 [M + H]+.





Example 11
156
Intermediate 43/ Intermediate 2


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Method C: MS-ESI: 427 [M + H]+.





Example 12
158
Intermediate 43/ Intermediate 40


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Method C: MS-ESI: 391 [M + H]+.





Example 13
159
Intermediate 43/ Intermediate 7


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Method C: MS-ESI: 393 [M + H]+.





Example 14
163
Intermediate 43/ Intermediate 8


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Method I: MS-ESI: 449 [M + H]+.





Example 15
164
Intermediate 43/ Intermediate 9


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Method I: MS-ESI: 400 [M + H]+.





Example 16
165
Intermediate 43/ Intermediate 33


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Method I: MS-ESI: 393 [M + H]+.





Example 17
166
Intermediate 43/ Intermediate 41


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Method A: MS-ESI: 425 [M + H]+.





Example 18
169
Intermediate 43/ Intermediate 52


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Method C: MS-ESI: 398 [M + H]+.





Example 19
170
Intermediate 43/ Intermediate 34


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Method C: MS-ESI: 433 [M + H]+.





Example 20
171
Intermediate 43/ Intermediate 35


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Method C: MS-ESI: 399 [M + H]+.





Example 21
172
Intermediate 43/ Intermediate 36


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Method C: MS-ESI: 413 [M + H]+.





Example 22
173
Intermediate 43/ Intermediate 21


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Method A: MS-ESI: 387 [M + H]+.





Example 23
176
Intermediate 43/ Intermediate 55


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Method C: MS-ESI: 387 [M + H]+.





Example 24
180
Intermediate 51/ Intermediate 32


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Method C: MS-ESI: 471 [M + H]+.





Example 25
181
Intermediate 43/ Intermediate 10


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Method C: MS-ESI: 396 [M + H]+.





Example 26
182
Intermediate 43/ Intermediate 11


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Method C: MS-ESI: 442 [M + H]+.





Example 27
183
Intermediate 43/ Intermediate 12


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Method C: MS-ESI: 387 [M + H]+.





Example 28
184
Intermediate 43/ Intermediate 13


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Method C: MS-ESI: 431 [M + H]+.





Example 29
185
Intermediate 43/ Intermediate 14


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Method C: MS-ESI: 434 [M + H]+.





Example 30
186
Intermediate 43/ Intermediate 42


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Method C: MS-ESI: 370 [M + H]+.









Example 31: 4-(4,4-difluoro-1-hydroxycyclohexyl)-N-(5,6-difluoro-1H-indol-3-yl)benzamide (Compound 187)



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4-(4,4-Difluoro-1-hydroxycyclohexyl)benzoic acid (220.0 mg, 0.9 mmol, 1.0 equiv.) was dissolved in THE (10.0 mL), then 5,6-difluoro-1H-indol-3-amine hydrogen chloride (175.9 mg, 0.9 mmol, 1.0 equiv.), TEA (0.4 mL, 2.6 mmol, 3.0 equiv.) and T3P (409.8 mg, 1.3 mmol, 1.5 equiv.) were added. The reaction mixture was stirred for 2 hours at ambient temperature and quenched by the addition of MeOH. The resulting solution was extracted with ethyl acetate and concentrated under vacuum. The residue was purified by Prep-HPLC with the following conditions: Column: YMC-Actus Triart C18, 30*250*5 m; Mobile Phase A: Water (10 mM NH4HCO3+0.1% NH4OH), Mobile Phase B: ACN; Flow rate: 60 mL/min; Gradient: 40 B to 50 B in 10 min; 254/210 nm; RT1: 9.67. This resulted in 4-(4,4-difluoro-1-hydroxycyclohexyl)-N-(5,6-difluoro-1H-indol-3-yl)benzamide (117.6 mg) as a white solid. LCMS Method E: [M+H]+=499. 1H NMR (400 MHz, DMSO-d6): δ 10.08 (s, 1H), 10.15 (s, 1H), 7.97-7.88 (m, 4H), 7.65 (d, 2H), 7.40-7.35 (m, 1H), 5.37 (s, 1H), 2.34-2.18 (m, 2H), 2.05-1.99 (m, 4H), 1.81-1.78 (m, 2H).


The following analogs were prepared using the same method described for Example 31.

















Compound
Starting

LCMS


Example
#
materials
Structure
data







Example 32
103
Intermediate 43/ Intermediate 4


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Method F: MS- ESI 375 [M + H]+.





Example 33
104
Intermediate 44/ Intermediate 30


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Method C: MS- ESI: 406 [M + H]+.





Example 34
105
Intermediate 43/ Intermediate 37


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Method C: MS- ESI: 449 [M + H]+.





Example 35
138
Intermediate 43/ Intermediate 18


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Method F: MS- ESI: 400 [M + H]+.





Example 36
139
Intermediate 43/ Intermediate 24


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Method F: MS- ESI: 400 [M + H]+.





Example 37
140
Intermediate 43/ Intermediate 19


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Method C: MS- ESI: 404 [M + H]+.





Example 38
108
Intermediate 43/ Intermediate 38


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Method F : MS- ESI: 363 [M + H]+.





Example 39
149
Intermediate 43/ Intermediate 26


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Method C: MS- ESI: 397 [M + H]+.





Example 40
110
Intermediate 43/ Intermediate 39


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Method F: MS- ESI: 385 [M + H]+.





Example 41
141
Intermediate 43/ Intermediate 29


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Method F: MS- ESI: 385 [M + H]+.





Example 42
142
Intermediate 43/ Intermediate 30


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Method C: MS- ESI: 417 [M + H]+.





Example 43
152
Intermediate 43/ 4-(2,2,2- trifluoro- ethoxy) benzoic acid


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Method C: MS- ESI: 371 [M + H]+.





Example 44
143
Intermediate 45/ Intermediate 30


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Method C: MS- ESI: 412 [M + H]+.





Example 45
144
Intermediate 48/ Intermediate 30


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Method C: MS- ESI: 400 [M + H]+.





Example 46
145
Intermediate 49/ Intermediate 30


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Method C: MS- ESI: 406 [M + H]+.





Example 47
111
Intermediate 46/ Intermediate 30


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Method C: MS- ESI: 400 [M + H]+.





Example 48
146
Intermediate 47/ Intermediate 30


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Method C: MS- ESI: 399 [M + H]+.





Example 49
157
Intermediate 43/ Intermediate 22


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Method C: MS- ESI: 348 [M + H]+.





Example 50
160
Intermediate 43/ Intermediate 31


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Method E: MS- ESI: 403 [M + H]+.





Example 51
102
Intermediate 51/ Intermediate 2


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Method C: MS- ESI: 499 [M + H]+.





Example 52
174
Intermediate 43/ Intermediate 54


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Method A: MS- ESI: 353 [M + H]+.





Example 53
175
Intermediate 43/ Intermediate 53


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Method A: MS- ESI: 407 [M + H]+.





Example 54
188
Intermediate 43/ Intermediate 15


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Method C: MS- ESI: 417 [M + H]+.





Example 55
189
Intermediate 43/ Intermediate 16


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Method C: MS- ESI: 445 [M + H]+.





Example 56
190
Intermediate 58/ Intermediate 2


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Method C: MS- ESI: 409 [M + H]+.





Example 57
191
Intermediate 43/ Intermediate 17


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Method E: MS- ESI: 413 [M + H]+.





Example 58
192
Intermediate 58/ Intermediate 30


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Method C: MS- ESI: 399 [M + H]+.









Example 59: N-(5,6-difluoro-1H-indol-3-yl)-2-oxo-1-[[4-(trifluoromethyl)phenyl]methyl]pyrimidine-4-carboxamide (Compound 193)



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2-Oxo-1-[[4-(trifluoromethyl)phenyl]methyl]pyrimidine-4-carboxylic acid (100 mg, 0.3 mmol, 1.0 equiv.) and 5,6-difluoro-1H-indol-3-amine hydrogen chloride (68.5 mg, 0.3 mmol, 1.0 equiv.) were dissolved in DMF (15 mL), then PyBOP (174.5 mg, 0.3 mmol, 1.0 equiv.) and NMM (0.2 mL, 1.7 mmol, 5.0 equiv.) were added. The reaction mixture was stirred for 16 hours at ambient temperature and then quenched by the addition of water. The resulting mixture was extracted with ethyl acetate, washed with brine, dried over anhydrous Na2SO4 and concentrated under vacuum. The residue was purified by Prep-HPLC with the following conditions: Column: XBridge Prep OBD C18 Column, 30×150 mm 5 m; Mobile Phase A: Water (10 mM NH4HCO3), Mobile Phase B: ACN; Flow rate: 50 mL/min; Gradient: 57% B to 57% B in 14 min; 254 nm; RT1:13.13 min. This resulted in N-(5,6-difluoro-1H-indol-3-yl)-2-oxo-1-[[4-(trifluoromethyl)phenyl]methyl]pyrimidine-4-carboxamide (32.9 mg) as a pale solid. LCMS Method E: [M+H]+=449. 1H NMR (400 MHz, DMSO-d6): δ 11.21 (s, 1H), 10.65 (s, 1H), 8.67 (d, 1H), 7.87-7.82 (m, 2H), 7.78-7.76 (m, 2H), 7.58 (d, 2H), 7.41-7.37 (m, 1H), 7.08 (d, 1H), 5.28 (s, 2H).


Example 60: N-(5-(1-(4-(methoxymethyl)phenyl)-1H-pyrazol-4-yl)-1H-indol-3-yl)-4-(4,4,4-trifluorobutoxy)benzamide (Compound 162)



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Compound 40 was prepared using the same method desired for Example 1


N-(5-bromo-1H-indol-3-yl)-4-(4,4,4-trifluorobutoxy)benzamide (200.0 mg, 0.5 mmol, 1.0 equiv.) was dissolved in 1,4-dioxane (5 mL) and water (0.5 mL), then 1-[4-(methoxymethyl)phenyl]-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazole (142.4 mg, 0.5 mmol, 1.0 equiv.), XPhos Pd G3 (38.4 mg, 0.05 mmol, 0.1 equiv.) and Cs2CO3 (443.4 mg, 1.4 mmol, 3.0 equiv.) were added under an atmosphere of nitrogen. The reaction mixture was heated to 80° C. overnight, then cooled to ambient temperature and concentrated under vacuum. The residue was purified by Prep-HPLC with the following conditions: Column, YMC-Actus Triart C18, 20*250 mm, 5 m, 12 nm; Mobile Phase A: Water (10 mM NH4HCO3+0.1% NH4OH), Mobile Phase B: ACN; (40% Phase B up to 70% in 10 min); Detector, UV 254 nm. This resulted in N-(5-[1-[4-(methoxymethyl)phenyl]pyrazol-4-yl]-1H-indol-3-yl)-4-(4,4,4-trifluorobutoxy)benzamide (77.4 mg) as a white solid. LCMS Method H: [M+H]+=549.



1H NMR (400 MHz, DMSO-d6): δ 10.94 (s, 1H), 9.99 (s, 1H), 8.87 (d, 1H), 8.19-8.16 (m, 2H), 8.06 (d, 2H), 7.90 (d, 2H), 7.79 (s, 1H), 7.52-7.40 (m, 4H), 7.10 (d, 2H), 4.46 (s, 2H), 4.16 (t, 2H), 3.28 (s, 3H), 2.48-2.41 (m, 2H), 2.03-1.96 (m, 2H).


Example 61: Synthesis of N-(5,6-difluoro-1H-indol-3-yl)-4-ethoxybenzamide (Compound 147)



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Synthesis of N-(5,6-difluoro-1H-indol-3-yl)-4-ethoxybenzamide

5,6-difluoro-1H-indol-3-amine (29.2 mg, 0.174 mmol, 1.0 equiv.) and 4-ethoxybenzoic acid (37.5 mg, 0.226 mmol, 1.3 equiv.) were dissolved in DMF (1.0 mL). Then a solution of TEA (96 μl, 0.696 mmol, 4.0 equiv.) and HATU (69.5 mg, 0.183 mmol, 1.05 equiv.) dissolved in 1 mL DMF was added. The reaction mixture was stirred at 30° C. for 16 hours. The reaction mixture was concentrated by Speedvac. The residue was purified by prep HPLC to give N-(5,6-difluoro-1H-indol-3-yl)-4-ethoxybenzamide (30.2 mg, 0.095 mmol). MS-ESI, 317.0 [M+H+].



1H NMR (400 MHz, DMSO-d6) δ ppm 11.04 (br s, 1H) 9.98 (s, 1H) 7.97 (d, 2H) 7.92-7.84 (m, 2H) 7.36 (dd, 1H) 7.04 (d, 2H) 4.12 (q, 2H) 1.36 (t, 3H)


Example 62: Synthesis of N-(5,6-difluoro-1H-indol-3-yl)-4-isopropoxybenzamide (Compound 128)



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Synthesis of N-(5,6-difluoro-1H-indol-3-yl)-4-isopropoxybenzamide

5,6-difluoro-1H-indol-3-amine (28.1 mg, 0.167 mmol, 1.0 equiv.) and 4-isopropoxybenzoic acid (39.1 mg, 0.217 mmol, 1.3 equiv.) were dissolved in DMF (1.0 mL). Then a solution of DIEA (116 μl, 0.668 mmol, 4.0 equiv.) and HATU (66.5 mg, 0.175 mmol, 1.05 equiv.) dissolved in 1 mL DMF was added. The reaction mixture was stirred at 30° C. for 16 hours. The reaction mixture was concentrated by Speedvac. The residue was purified by prep HPLC to give N-(5,6-difluoro-1H-indol-3-yl)-4-isopropoxybenzamide (15.1 mg, 0.046 mmol). MS-ESI, 331.1 [M+H+].



1H NMR (400 MHz, DMSO-d6) δ ppm 11.05 (br s, 1H), 9.98 (s, 1H), 7.96 (d, 2H), 7.92-7.83 (m, 2H), 7.36 (dd, 1H), 7.03 (d, 2H), 4.74 (dt, 1H), 1.30 (d, 6H)


The following compounds were prepared using the method above.




















LC-MS,






MS-ESI,—






[M + H+].


Exam-
Compound

IUPAC
Methods BA


ple #
#
Structure
Name
or BB



















63
113


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N-(5,6- difluoro-1H- indol-3-yl)- 2-(propan-2- yloxy) pyridine-4- carboxamide
332.1





64
121


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N-(5,6- difluoro-1H- indol-3-yl)- 3- (difluoro- methoxy) benzamide
339





65
116


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N-(5,6- difluoro-1H- indol-3-yl)- 4- (difluoro- methoxy) benzamide
339.1





66
106


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N-(5,6- difluoro-1H- indol-3-yl)- 2- (difluoro- methoxy) pyridine-4- carboxamide
340.1





67
130


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4- (cyclopropyl methoxy)-N- (5,6- difluoro-1H- indol-3- yl)benzamide
343.1





68
132


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4-butoxy-N- (5,6- difluoro-1H- indol-3- yl)benzamide
345.1





69
120


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3-cyano-N- (5,6- difluoro-1H- indol-3-yl)- 4-(propan-2- yloxy)benza- mide
356.1





70
135


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N-(5,6- difluoro-1H- indol-3-yl)- 4- (trifluoro- methoxy) benzamide
357.1





71
125


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N-(5,6- difluoro-1H- indol-3-yl)- 3- (trifluoro- methoxy) benzamide
357.1





72
118


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N-(5,6- difluoro-1H- indol-3-yl)- 4-(pyridin-3- yloxy)benza- mide
366.1





73
112


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N-(5,6- difluoro-1H- indol-3-yl)- 3-methoxy- 4- (trifluoro- methyl) benzamide
371





74
119


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N-(5,6- difluoro-1H- indol-3-yl)- 3-methyl-5- (trifluoro- methoxy) benzamide
371.1





75
124


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N-(5,6- difluoro-1H- indol-3-yl)- 6-(oxan-4- yloxy) pyridine-2- carboxamide
374.2





76
131


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3- (benzyloxy)- N-(5,6- difluoro-1H- indol-3- yl)benzamide
379.1





77
136


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4- (benzyloxy)- N-(5,6- difluoro-1H- indol-3- yl)benzamide
379.1





78
117


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N-(5,6- difluoro-1H- indol-3-yl)- 3-(1,1,2,2- tetrafluoro- ethoxy) benzamide
389





79
134


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N-(5,6- difluoro-1H- indol-3-yl)- 3-fluoro-4- (2,2,2- trifluoro- ethoxy) benzamide
389.1





80
114


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3-chloro-N- (5,6- difluoro-1H- indol-3-yl)- 4- (trifluoro- methoxy) benzamide
391





81
126


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N-(5,6- difluoro-1H- indol-3-yl)- 4-(propan-2- yloxy)-3- (trifluoro- methyl) benzamide
399.1





82
122


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2-chloro-N- (5,6- difluoro-1H- indol-3-yl)- 4-(2,2,2- trifluoro- ethoxy) benzamide
405.1





83
115


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N-(5,6- difluoro-1H- indol-3-yl)- 3,5-difluoro- 4-(2,2,2- trifluoro- ethoxy) benzamide
407





84
127


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3- (cyclopropyl methoxy)-N- (5,6- difluoro-1H- indol-3-yl)- 4- (difluoro- methoxy) benzamide
409.1





85
133


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N-(5,6- difluoro-1H- indol-3-yl)- 4-{[5- (trifluoro- methyl) pyridin-2- yl]oxy} benzamide
434.1





86
129


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N-(5,6- difluoro-1H- indol-3-yl)- 4-[2- (piperidin-1- yl)ethoxy] benzamide
400





87
123


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(pyridin-3- yl)methyl N- ({4-[(5,6- difluoro-1H- indol-3-yl) carbamoyl] phenyl} methyl) carbamate
437.2









Example 88: N-(5,6-difluoro-1H-indol-3-yl)-4-(5-isopropyl-1,2,4-oxadiazol-3-yl)benzamide (Compound 267)



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5,6-difluoro-1H-indol-3-amine (23.4 mg, 0.14 mmol, 1.0 equiv.) and 4-(5-isopropyl-1,2,4-oxadiazol-3-yl)benzoic acid (41.8 mg, 0.18 mmol, 1.3 equiv.) were dissolved in DMF (1.0 mL). Then a solution of DIEA (97 μl, 0.56 mmol, 4.0 equiv.) and HATU (55.5 mg, 0.15 mmol, 1.05 equiv.) dissolved in 1 mL of DMF was added. The reaction mixture was stirred at 30° C. for 16 hours. The reaction mixture was concentrated by Speedvac. The residue was purified by prep HPLC to give N-(5,6-difluoro-1H-indol-3-yl)-4-(5-isopropyl-1,2,4-oxadiazol-3-yl)benzamide. MS-ESI, 383.2 [M+H+].



1H NMR (400 MHz, DMSO-d6) δ 11.13 (br s, H), 10.38 (s, 1H), 8.21-8.11 (m, 4H), 7.96-7.85 (m, 2H), 7.39 (dd, J=11.0, 7.0 Hz, 1H), 3.43-3.39 (m, 1H), 1.41 (d, J=7.0 Hz, 6H).


The following compounds were prepared using the method for Example 88 above.




















LC-MS


Example
Compound


MS-ESI


#
No.
Structure
IUPAC Name
[M + H+].



















89
270


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N-(5,6-difluoro- 1H-indol-3-yl)- 5- (difluoromethoxy) pyridine-2- carboxamide
340.1





90
269


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N-(5,6-difluoro- 1H-indol-3-yl)- 4-(oxetan-3- yloxy)benzamide
345.1





91
199


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N-(5,6-difluoro- 1H-indol-3-yl)- 4-ethoxy-2,6- difluorobenzamide
353.1





92
198


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N-(5,6-difluoro- 1H-indol-3-yl)- 3-ethoxy-2,4- difluorobenzamide
353.1





93
168


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4- (cyclopentyloxy)- N-(5,6-difluoro- 1H-indol-3- yl)benzamide
357.1





94
197


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N-(5,6-difluoro- 1H-indol-3-yl)- 6- (trifluoromethoxy) pyridine-3- carboxamide
358.1





95
196


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4- (cyclohexyloxy)- N-(5,6-difluoro- 1H-indol-3- yl)benzamide
371.2





96
179


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3- (cyclohexyloxy)- N-(5,6-difluoro- 1H-indol-3- yl)benzamide
371.2





97
195


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3-chloro-4- (cyclopropyl- methoxy)-N-(5,6- difluoro-1H- indol-3- yl)benzamide
377.1





98
249


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tert-butyl 4-{4- [(5,6-difluoro- 1H-indol-3- yl)carbamoyl] phenoxy} piperidine-1- carboxylate
416.1





99
194


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N-(5,6-difluoro- 1H-indol-3-yl)- 3-(2- methoxyethoxy) benzamide
347.1





100
268


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N-(5,6-difluoro- 1H-indol-3-yl)- 4-(1,1,2,2- tetrafluoroethoxy) benzamide
389.1





101
274


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N-(5,6-difluoro- 1H-indol-3-yl)- 3-(5-methyl- 1,2,4-oxadiazol- 3-yl)benzamide
355.1





102
266


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4-(5- cyclopropyl- 1,2,4-oxadiazol- 3-yl)-N-(5,6- difluoro-1H- indol-3- yl)benzamide
381.1





103
265


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N-(5,6-difluoro- 1H-indol-3-yl)- 6-(propan-2- yloxy)pyridine- 3-carboxamide
332.1





104
264


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N-(5,6-difluoro- 1H-indol-3-yl)- 6-methoxy-5- (trifluoromethyl) pyridine-3- carboxamide
372.1





105
263


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N-(5,6-difluoro- 1H-indol-3-yl)- 2- phenoxypyridine- 4-carboxamide
366.1









Example 106: N-(5,6-difluoro-1H-indol-3-yl)-5-fluoro-6-((1R,5S,6r)-6-((2,2,2-trifluoroethoxy)methyl)-3-azabicyclo[3.1.0]hexan-3-yl)nicotinamide (Compound 223)



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5-Fluoro-6-[(1R,5S,6R)-6-[(2,2,2-trifluoroethoxy)methyl]-3-azabicyclo[3.1.0]hexan-3-yl]pyridine-3-carboxylic acid (200.0 mg, 0.6 mmol, 1.0 equiv.) was dissolved in DMF (10 mL), then EDC (172.1 mg, 0.9 mmol, 1.5 equiv.), HOBt (121.3 mg, 0.9 mmol, 1.5 equiv.) and 5,6-difluoro-1H-indol-3-amine hydrochloride (183.8 mg, 0.9 mmol, 1.5 equiv.) were added. This was followed by the addition of DIEA (0.3 mL, 1.8 mmol, 3.0 equiv.). The reaction mixture was stirred for 4 hours at ambient temperature and then diluted with ethyl acetate. The resulting solution was washed with brine, dried over anhydrous Na2SO4 and concentrated under vacuum. The residue was purified by Prep-HPLC using the following conditions: Column, XBridge Prep OBD C18 Column, 30*150 mm, 5 μm; mobile phase, Water (10 mM NH4HCO3) and ACN (40% Phase B up to 70% in 7 min); Detector, UV 254 nm. This resulted in N-(5,6-difluoro-1H-indol-3-yl)-5-fluoro-6-((1R,5S,6r)-6-((2,2,2-trifluoroethoxy)methyl)-3-azabicyclo[3.1.0]hexan-3-yl)nicotinamide (64.1 mg) as a white solid. LCMS Method E-1: [M+H]+=485. 1H NMR (400 MHz, DMSO-d6): δ 11.07 (s, 1H), 9.93 (s, 1H), 8.60 (s, 1H), 8.00-7.95 (m, 1H), 7.91-7.84 (m, 2H), 7.39-7.35 (m, 1H), 4.11-4.04 (m, 2H), 3.97-3.94 (m, 2H), 3.68-3.65 (m, 2H), 3.54 (d, J=6.8 Hz, 2H), 1.70 (s, 2H), 1.04-1.00 (m, 1H).


The following analogs were prepared using the same method described for Example 106.


















Starting





Compound
materials




Example
#
Used
Structure
LCMS data







Example 107
221
Intermediate 43/ Intermediate 79


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Method F-1: MS-ESI: 485 [M + H]+.





Example 108
224
Intermediate 50/ Intermediate 70


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Method F-1: MS-ESI: 483 [M + H]+.





Example 109
227
Intermediate 1 Intermediate 71


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Method D-1: MS-ESI: 484 [M + H]+.









Example 110: N-(5,6-difluoro-1H-indol-3-yl)-6-(4-methyl-1-(2,2,2-trifluoroethyl)piperidin-4-yl)nicotinamide (Compound 218)



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6-[4-Methyl-1-(2,2,2-trifluoroethyl)piperidin-4-yl]pyridine-3-carboxylic acid (100.0 mg, 0.3 mmol, 1.0 equiv.) and 5,6-difluoro-1H-indol-3-amine hydrochloride (81.2 mg, 0.4 mmol, 1.2 equiv.) were dissolved in DMF (5 mL), then HATU (150.9 mg, 0.4 mmol, 1.2 equiv.) and DIEA (0.1 mL, 0.7 mmol, 2.0 equiv.) were added. The reaction mixture was stirred for 2 hours at ambient temperature then concentrated under vacuum. The residue was purified by Prep-HPLC using the following conditions: Column, Xselect CSH F-Phenyl OBD column, 19*250, 5 μm; mobile phase A, Water (10 mM NH4HCO3); mobile phase B, ACN; 5400 Phase B up to 6900 in 7 min; Detector, UV 254 nm. This resulted in N-(5,6-difluoro-1H-indol-3-yl)-6-[4-methyl-1H-(2,2,2-trifluoroethyl)piperidin-4-yl]pyridine-3-carboxamide (50.0 mg) as an off-white solid. LCMS Method H-1: [M+H]+=453. 1H NMR (400 MHz, DMSO-d6): δ 11.12 (s, 1H), 10.34 (s, 1H), 9.09 (d, J=1.6 Hz, 1H), 8.28-8.25 (in, 1H), 7.94-7.89 (m, 2H), 7.62 (d, J=8.4 Hz, 1H), 7.41-7.37 (in, 1H), 3.14-3.06 (m, 2H), 2.77-2.73 (m, 2H), 2.46-2.43 (m, 2H), 2.36-2.32 (m, 2H), 1.77-1.71 (m, 2H), 1.22 (s, 3H).


The following analogs were prepared using the same method described for Example 110.

















Compound
Starting materials




Example
#
Used
Structure
LCMS data







Example 111
219
Intermediate 43/ Intermediate 69


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Method F-1: MS-ESI: 437 [M + H]+.





Example 112
220
Intermediate 43/ Intermediate 63


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Method D-1: MS-ESI: 424 [M + H]+.





Example 113
222
Intermediate 43/ Intermediate 97


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Method F-1: MS-ESI: 484 [M + H]+.





Example 114
225
Intermediate 50/ Intermediate 71


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Method F-1: MS-ESI: 482 [M + H]+.





Example 115
226
Intermediate 43/ Intermediate 90


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Method F-1: MS-ESI: 362 [M + H]+.





Example 116
228
Intermediate 43/ Intermediate 114


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Method F-1: MS-ESI: 346 [M + H]+.





Example 117
229
Intermediate 50/ Intermediate 121


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Method E-1: MS-ESI: 450 [M + H]+.





Example 118
230
Intermediate 50/ Intermediate 65


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Method F-1: MS-ESI: 452 [M + H]+.





Example 119
231
Intermediate 43/ Intermediate 91


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Method E-1: MS-ESI: 376 [M + H]+.





Example 120
232
Intermediate 43/ Intermediate 94


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Method E-1: MS-ESI: 415 [M + H]+.





Example 121
233
Intermediate 43/ Intermediate 113


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Method F-1: MS-ESI: 393 [M + H]+.





Example 122
234
Intermediate 43/ Intermediate 122


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Method D-1: MS-ESI: 381 [M + H]+.





Example 123
235
Intermediate 43/ Intermediate 107


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Method E-1: MS-ESI: 372 [M + H]+.





Example 124
236
Intermediate 43/ Intermediate 80


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Method D-1: MS-ESI: 414 [M + H]+.





Example 125
237
Intermediate 43/ Intermediate 106


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Method F-1: MS-ESI: 436 [M + H]+.





Example 126
238
Intermediate 43/ Intermediate 81


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Method E-1: MS-ESI: 347 [M + H]+.





Example 127
239
Intermediate 43/ Intermediate 72


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Method E-1: MS-ESI: 419 [M + H]+.





Example 128
240
Intermediate 43/ Intermediate 96


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Method G-1: MS-ESI: 398 [M + H]+.





Example 129
241
Intermediate 43/ Intermediate 108


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Method F-1: MS-ESI: 332 [M + H]+.





Example 130
243
Intermediate 43/ Intermediate 82


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Method G-1: MS-ESI: 413 [M + H]+.





Example 131
246
Intermediate 43/ Intermediate 93


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Method E-1: MS-ESI: 427 [M + H]+.





Example 132
247
Intermediate 43/ Intermediate 84


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Method F-1: MS-ESI: 379 [M + H]+.





Example 133
248
Intermediate 43/ Intermediate 109


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Method F-1: MS-ESI: 373 [M + H]+.





Example 134
250
Intermediate 43/ Intermediate 110


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Method G-1: MS-ESI: 408 [M + H]+.





Example 135
251
Intermediate 43/ Intermediate 111


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Method G-1: MS-ESI: 407 [M + H]+.





Example 136
252
Intermediate 43/ Intermediate 83


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Method E-1: MS-ESI: 399 [M + H]+.





Example 137
253
Intermediate 43/ Intermediate 85


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Method E-1: MS-ESI: 379 [M + H]+.





Example 138
254
Intermediate 43/ Intermediate 101


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Method G-1: MS-ESI: 441 [M + H]+.





Example 139
255
Intermediate 43/ Intermediate 102


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Method G-1: MS-ESI: 413 [M + H]+.





Example 140
256
Intermediate 43/ Intermediate 86


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Method E-1: MS-ESI: 407 [M + H]+.





Example 141
257
Intermediate 43/ Intermediate 103


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Method F-1: MS-ESI: 379 [M + H]+.





Example 142
259
Intermediate 60/ Intermediate 56


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Method G-1: MS-ESI: 423 [M + H]+.





Example 143
260
Intermediate 43/ Intermediate 104


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Method E-1: MS-ESI: 378 [M + H]+.





Example 144
258
Intermediate 43/ Intermediate 112


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Method G-1: MS-ESI: 425 [M + H]+.





Example 145
261
Intermediate 43/ Intermediate 115


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Method E-1: MS-ESI: 341 [M + H]+.





Example 146
262
Intermediate 43/ Intermediate 66


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Method G-1: MS-ESI: 419 [M + H]+.





Example 147
271
Intermediate 43/ Intermediate 74


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Method E-1: MS-ESI: 388 [M + H]+.





Example 148
272
Intermediate 50/ Intermediate 75


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Method E-1: MS-ESI: 377 [M + H]+.





Example 149
273
Intermediate 43/ Intermediate 105


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Method G-1: MS-ESI: 379 [M + H]+.





Example 150
280
Intermediate 43/ Intermediate 117


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Method E-1: MS-ESI: 385 [M + H]+.





Example 151
276
Intermediate 43/ Intermediate 118


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Method E-1: MS-ESI: 385 [M + H]+.





Example 152
279
Intermediate 43/ Intermediate 119


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Method E-1: MS-ESI: 385 [M + H]+.





Example 153
275
Intermediate 43/ Intermediate 120


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Method E-1: MS-ESI: 385 [M + H]+.





Example 154
204
Intermediate 62/ Intermediate 67


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Method F-1: MS-ESI: 489 [M + H]+.





Example 155
203
Intermediate 43/ Intermediate 87


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Method F-1: MS-ESI: 399 [M + H]+.





Example 156
277
Intermediate 43/ Intermediate 88


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Method E-1: MS-ESI: 399 [M + H]+.





Example 157
208
Intermediate 43/ Intermediate 92


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Method G-1: MS-ESI: 395 [M + H]+.





Example 158
207
Intermediate 43/ Intermediate 76


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Method G-1: MS-ESI: 399 [M + H]+.





Example 159
278
Intermediate 43/ Intermediate 78


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Method E-1: MS-ESI: 419 [M + H]+.





Example 14
163
Intermediate 43/ Intermediate 8


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Method F-1: MS-ESI: 449 [M + H]+.





Example 15
164
Intermediate 43/ Intermediate 9


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Method F-1: MS-ESI: 400 [M + H]+.





Example 16
165
Intermediate 43/ Intermediate 33


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Method F-1: MS-ESI: 393 [M + H]+.





Example 17
166
Intermediate 43/ Intermediate 41


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Method G-1: MS-ESI: 425 [M + H]+.





Example 18
169
Intermediate 43/ Intermediate 52


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Method C-1: MS-ESI: 398 [M + H]+.





Example 19
170
Intermediate 43/ Intermediate 74


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Method C-1: MS-ESI: 433 [M + H]+.





Example 20
171
Intermediate 43/ Intermediate 35


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Method C-1: MS-ESI: 399 [M + H]+.





Example 21
172
Intermediate 43/ Intermediate 36


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Method C-1: MS-ESI: 413 [M + H]+.





Example 22
173
Intermediate 43/ Intermediate 21


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Method G-1: MS-ESI: 387 [M + H]+.





Example 23
176
Intermediate 43/ Intermediate 55


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Method C-1: MS-ESI: 387 [M + H]+.





Example 25
181
Intermediate 43/ Intermediate 10


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Method C-1: MS-ESI: 396 [M + H]+.





Example 26
182
Intermediate 43/ Intermediate 83


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Method C-1: MS-ESI: 442 [M + H]+.





Example 27
183
Intermediate 43/ Intermediate 12


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Method C-1: MS-ESI: 387 [M + H]+.





Example 28
184
Intermediate 43/ Intermediate 13


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Method C-1: MS-ESI: 431 [M + H]+.





Example 29
185
Intermediate 43/ Intermediate 14


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Method C-1: MS-ESI: 434 [M + H]+.





Example 30
186
Intermediate 43/ Intermediate 42


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Method C-1: MS-ESI: 370 [M + H]+.





Example 55
189
Intermediate 43/ Intermediate 16


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Method C-1: MS-ESI: 445 [M + H]+.





Example 1
101
Intermediate 43/ Intermediate 1


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Method C-1: MS-ESI: 439 [M + H]+.





Example 24
180
Intermediate 51/ Intermediate 67


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Method C-1: MS-ESI: 471 [M + H]+.





Example 53
175
Intermediate 43/ Intermediate 53


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Method G-1: MS-ESI: 407 [M + H]+.





Example 31
187
Intermediate 43/ Intermediate 56


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Method A-1: MS-ESI: 407 [M + H]+.





Example 54
188
Intermediate 43/ Intermediate 15


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Method C-1: MS-ESI: 417 [M + H]+.





Example 56
190
Intermediate 58/ Intermediate 2


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Method C-1: MS-ESI: 409 [M + H]+.





Example 58
192
Intermediate 58/ Intermediate 30


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Method C-1: MS-ESI: 399 [M + H]+.





Example 57
191
Intermediate 43/ Intermediate 17


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Method A-1: MS-ESI: 413 [M + H]+.





Example 161
213 2
Intermediate 43/ Intermediate 116


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Method E-1: MS-ESI: 416 [M + H]+.









Example 160: N-(5,6-difluoro-1H-indol-3-yl)-4-(2,2-difluoroethoxy)benzamide (Compound 174)



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4-(2,2-Difluoroethoxy)benzoic acid (300.0 mg, 1.5 mmol, 1.0 equiv.) and 5,6-difluoro-1H-indol-3-amine hydrochloride (303.6 mg, 1.5 mmol, 1.0 equiv.) were dissolved in DMF (4 mL), then T3P (wt. 50% in ethyl acetate, 1.5 mL, 2.2 mmol, 1.5 equiv.) and TEA (0.8 mL, 5.9 mmol, 4.0 equiv.) were added. The reaction mixture was stirred overnight at ambient temperature, then quenched by the addition of water. The resulting solution was extracted with ethyl acetate and concentrated under vacuum. The residue was purified by Prep-HPLC using the following conditions: Column, Xselect CSH OBD Column 30*150 mm 5 μm; mobile phase A: Water (0.1% FA); mobile phase B: ACN (35% Phase B up to 62% in 7 min); Detector, UV 254 nm. This resulted in N-(5,6-difluoro-1H-indol-3-yl)-4-(2,2-difluoroethoxy)benzamide (109.0 mg) as a pink solid. LCMS Method G-1: [M+H]+=353. 1H NMR (400 MHz, DMSO-d6): δ 11.06 (s, 1H), 10.04 (s, 1H), 8.02 (d, J=8.8 Hz, 2H), 7.92-7.86 (m, 2H), 7.39-7.35 (m, 1H), 7.16 (d, J=8.8 Hz, 2H), 6.60-6.30 (m, 1H) 4.48-4.40 (m, 2H).


The following analogs were prepared using the same method described for Example 160.


Example 162: N-(5,6-difluoro-1H-indol-3-yl)-5-fluoro-6-((3,3,3-trifluoropropyl)amino)nicotinamide (Compound 242)



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5-Fluoro-6-[(3,3,3-trifluoropropyl)amino]pyridine-3-carboxylic acid (500.0 mg, 2.0 mmol, 1.0 equiv.) and DCC (613.7 mg, 3.0 mmol, 1.5 equiv.) were dissolved in DCM (15 mL), then DMAP (726.7 mg, 5.9 mmol, 3.0 equiv.) and 5,6-difluoro-1H-indol-3-amine hydrochloride (608.5 mg, 3.0 mmol, 1.5 equiv.) were added. The reaction mixture was stirred overnight at ambient temperature then diluted with ethyl acetate. The resulting solution was washed with brine, dried over anhydrous Na2SO4 and concentrated under vacuum. The residue was purified by flash column chromatography on silica gel, eluting with ethyl acetate/petroleum ether (1:1) to give the crude product, that was further purified by Prep-HPLC using the following conditions: Column: XBridge Prep OBD C18 Column, 30*150 mm, 5 μm; Mobile Phase A: Water (10 mM NH4HCO3+0.1% NH4OH), Mobile Phase B: ACN; Flow rate: 60 mL/min; Gradient: 35% B to 65% B in 7 min; Wave Length: 220 nm; RT1: 6.33 min. This resulted in N-(5,6-difluoro-1H-indol-3-yl)-5-fluoro-6-[(3,3,3-trifluoropropyl)amino]pyridine-3-carboxamide (106.9 mg) as an off-white solid. LCMS Method E-1: [M+H]+=403. 1H NMR (400 MHz, DMSO-d6): δ 11.07 (s, 1H), 9.94 (s, 1H), 8.60 (s, 1H), 7.95-7.84 (m, 3H), 7.48-7.47 (m, 1H), 7.40-7.35 (m, 1H), 3.71-3.66 (m, 2H), 2.67-2.58 (m, 2H).


Example 163: 5-chloro-N-(5,6-difluoro-1H-indol-3-yl)-6-((5-hydroxy-4,4-dimethylpentyl)amino)nicotinamide (Compound 209)



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Step 1: 6-((5-((tert-butyldiphenylsilyl)oxy)-4,4-dimethylpentyl)amino)-5-chloro-N-(5,6-difluoro-1H-indol-3-yl)nicotinamide

The title compound was prepared using the same methods described for Example 160. LCMS: Method A-1, [M+H]+=675.


Step 2: 5-chloro-N-(5,6-difluoro-1H-indol-3-yl)-6-[(5-hydroxy-4,4-dimethylpentyl)amino]pyridine-3-carboxamide

6-([5-[(tert-Butyldiphenylsilyl)oxy]-4,4-dimethylpentyl]amino)-5-chloro-N-(5,6-difluoro-1H-indol-3-yl)pyridine-3-carboxamide (80.0 mg, 0.1 mmol, 1.o equiv.) was dissolved in aqueous HBr (4 mL, 50% wt.). The reaction mixture was heated to 60° C. overnight, then cooled to ambient temperature and quenched by the addition of water. The resulting solution was extracted with ethyl acetate and concentrated under vacuum. The residue was purified by Prep-HPLC using the following conditions: Column, XBridge Prep OBD C18 Column, 30*150 mm, 5 μm; mobile phase A: Water (10 mM NH4HCO3+0.1% NH40H), mobile phase B: ACN (30% Phase B up to 60% in 7 min); Detector, UV254 nm. This resulted in 5-chloro-N-(5,6-difluoro-1H-indol-3-yl)-6-[(5-hydroxy-4,4-dimethylpentyl)amino]pyridine-3-carboxamide (12.0 mg) as a white solid. LCMS Method F-1: [M+H]+=387. 1H NMR (400 MHz, DMSO-d6) δ 11.05 (s, 1H), 9.91 (s, 1H), 8.67 (d, J=2.0 Hz, 1H), 8.16 (d, J=2.0 Hz, 1H), 7.92-7.88 (m, 1H), 7.83 (d, J=2.4 Hz, 1H), 7.39-7.34 (m, 1H), 7.11 (t, J=5.6 Hz, 1H), 4.46 (brs, 1H), 3.43-3.40 (m, 2H), 3.10 (s, 2H), 1.59-1.55 (m, 2H), 1.25-1.22 (m, 2H), 0.79 (s, 6H).


Example 164: N-(5,6-difluoro-1H-indol-3-yl)-6-(3,3-difluorocyclobutyl)nicotinamide (Compound 216)



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Step 1: 5-bromo-N-(5,6-difluoro-1H-indol-3-yl)-6-(3,3-difluorocyclobutyl)nicotinamide

The title compound was prepared using the same methods described for Example 160. LCMS: Method A-1, [M+H]+=442.


Step 2: N-(5,6-difluoro-1H-indol-3-yl)-6-(3,3-difluorocyclobutyl)pyridine-3-carboxamide

5-Bromo-N-(5,6-difluoro-1H-indol-3-yl)-6-(3,3-difluorocyclobutyl)pyridine-3-carboxamide (200.0 mg, 0.5 mmol, 1.0 equiv.) and HCOONH4 (114.1 mg, 1.8 mmol, 4.0 equiv.) were dissolved MeOH (5 mL), then Pd/C (10% wt., 5.0 mg) was added. The reaction mixture was heated to 60° C. for 2 hours, then cooled to ambient temperature. The solids were removed by filtration and the filtrate was concentrated under vacuum. The residue was purified by Prep-HPLC using the following conditions: Column: XBridge Prep OBD C18 Column, 30*150 mm, 5 μm; Mobile Phase A: Water (10 mM NH4HCO3+0.1% NH4OH), Mobile Phase B: ACN; Flow rate: 60 mL/min; Gradient: 38 B to 54 B in 7 min; 220 nm; RT1: 6.38 min. This resulted in N-(5,6-difluoro-1H-indol-3-yl)-6-(3,3-difluorocyclobutyl)pyridine-3-carboxamide (50.9 mg) as a white solid. LCMS Method E-1: [M+H]+=364. 1H NMR (400 MHz, DMSO-d6) δ 11.13 (s, 1H), 10.34 (s, 1H), 9.14 (d, J=2.0 Hz, 1H), 8.30-8.27 (m, 1H), 7.93-7.88 (m, 2H), 7.54 (d, J=8.0 Hz, 1H), 7.41-7.37 (m, 1H), 3.68-3.63 (m, 1H), 3.02-2.90 (m, 4H).


Example 165: N-(5-(1-(4-(methoxymethyl)phenyl)-1H-pyrazol-4-yl)-1H-indol-3-yl)-4-(4,4,4-trifluorobutoxy)benzamide (Compound 162)



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Step 1: N-(5-bromo-1H-indol-3-yl)-4-(4,4,4-trifluorobutyl)benzamide

The title compound was prepared using the same methods described for Example 110. LCMS: Method A-1, [M+H]+=425.


Step 2: N-(5-[1-[4-(methoxymethyl)phenyl]pyrazol-4-yl]-1H-indol-3-yl)-4-(4,4,4-trifluorobutoxy)benzamide

N-(5-bromo-1H-indol-3-yl)-4-(4,4,4-trifluorobutoxy)benzamide (200.0 mg, 0.5 mmol, 1.0 equiv.) and 1-[4-(methoxymethyl)phenyl]-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazole (142.4 mg, 0.5 mmol, 1.0 equiv.) were dissolved in 1,4-dioxane (5 mL) and water (0.5 mL). Then XPhos Pd G3 (38.4 mg, 0.05 mmol, 0.1 equiv.) and Cs2CO3 (443.0 mg, 1.4 mmol, 3.0 equiv.) were added under an atmosphere of nitrogen. The reaction mixture was heated to 80° C. overnight under nitrogen, then cooled to ambient temperature and concentrated under vacuum. The residue was purified by Prep-HPLC using the following conditions: Column, YMC-Actus Triart C18, 20*250 mm, 5 μm; mobile phase A, Water (0.05% TFA); mobile phase B: ACN (40% Phase B up to 70% o in 10 min); Detector, UV254 nm. This resulted in N-(5-[1-[4-(methoxymethyl)phenyl]pyrazol-4-yl]-1H-indol-3-yl)-4-(4,4,4-trifluorobutoxy)benzamide (77.4 mg) as a white solid.


LCMS Method F-1: [M+H]+=549. 1H NMR (400 MHz, DMSO-d6) δ 10.94 (s, 1H), 9.99 (s, 1H), 8.87 (s, 1H), 8.19 (s, 1H), 8.16 (s, 1H), 8.06 (d, J=8.4 Hz, 2H), 7.90 (d, J=8.4 Hz, 2H), 7.79 (d, J=2.0 Hz, 1H), 7.52-7.40 (m, 4H), 7.10 (d, J=8.8 Hz, 2H), 4.46 (s, 2H), 4.16 (t, J=6.0 Hz, 2H), 3.33 (s, 3H), 2.51-2.44 (m, 2H), 2.03-1.96 (in, 2H).


The following analogs were prepared using the same method described for Example

















Com-
Starting materials




Example
pound #
Used
Structure
LCMS data







Example 166
201


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  Intermediate 125



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Method F-1: MS-ESI: 545 [M + H]+.





Example 167
200


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  Intermediate 123



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Method E-1: MS-ESI: 549 [M + H]+.










165.


Example 168/169: (R or S)—N-(5,6-difluoro-1H-indol-3-yl)-4-(1-(3,3-difluoroazetidin-1-yl)-1l3-ethyl)-3-fluorobenzamide; Compound 245 (front peak, absolute stereochemistry unconfirmed) and (R or S)—N-(5,6-difluoro-1H-indol-3-yl)-4-(1-(3,3-difluoroazetidin-1-yl)-1l3-ethyl)-3-fluorobenzamide; Compound 244 (second peak, absolute stereochemistry unconfirmed)]



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Step 1: N-(5,6-difluoro-1H-indol-3-yl)-4-(1-(3,3-difluoroazetidin-1-yl)ethyl)-3-fluorobenzamide

The title compound was prepared using the same methods described for Example 110. LCMS: Method A-1, [M+H]+=410.


Step 2: (R or S)—N-(5,6-difluoro-1H-indol-3-yl)-4-(1-(3,3-difluoroazetidin-1-yl)-1l3-ethyl)-3-fluorobenzamide; Compound 245 (front peak, absolute stereochemistry unconfirmed) and (R or S)—N-(5,6-difluoro-1H-indol-3-yl)-4-(1-(3,3-difluoroazetidin-1-yl)-1l3-ethyl)-3-fluorobenzamide; Compound 244 (second peak, absolute stereochemistry unconfirmed)

The racemic N-(5,6-difluoro-1H-indol-3-yl)-4-(1-(3,3-difluoroazetidin-1-yl)ethyl)-3-fluorobenzamide (400.0 mg) was separated by Prep-Chiral-HPLC using the following conditions: Column: CHIRAL ART Cellulose-SB, 2*25 cm, 5 μm; Mobile Phase A: Hex (0.2% DEA)—HPLC, Mobile Phase B: EtOH:DCM (1:1)—HPLC; Flow rate: 20 mL/min; Gradient: 15 B to 15 B in 18 min; 220/254 nm; RT1: 13.418 min; RT2: 15.766 min. This gave Compound 245 (front peak, 107.0 mg) as a white solid and Compound 244 (second peak, 112.0 mg) as a white solid.


Compound 245: (R or S)—N-(5,6-difluoro-1H-indol-3-yl)-4-(1-(3,3-difluoroazetidin-1-yl)-1l3-ethyl)-3-fluorobenzamide; LCMS Method F-1: [M+H]+=410. 1H NMR (400 MHz, DMSO-d6): δ 11.12 (s, 1H), 10.23 (s, 1H), 7.92-7.77 (m, 4H), 7.65-7.61 (m, 1H), 7.41-7.36 (m, 1H), 3.94-3.92 (m, 1H), 3.65-3.56 (m, 4H), 1.23 (d, J=6.6 Hz, 3H).


Compound 244: (R or S)—N-(5,6-difluoro-1H-indol-3-yl)-4-(1-(3,3-difluoroazetidin-1-yl)-1l3-ethyl)-3-fluorobenzamide; LCMS Method F-1: [M+H]+=410. 1H NMR (400 MHz, DMSO-d6): δ 11.11 (s, 1H), 10.23 (s, 1H), 7.92-7.77 (m, 4H), 7.65-7.61 (m, 1H), 7.41-7.36 (m, 1H), 3.94-3.92 (m, 1H), 3.65-3.56 (m, 4H), 1.23 (d, J=6.6 Hz, 3H).


Biological Assays

STING pathway activation by the compounds described herein was measured using THP1-Dual™ cells (KO-IFNAR2).


THP1-Dual™ KO-IFNAR2 Cells (obtained from invivogen) were maintained in RPMI, 10% FCS, 5 ml P/S, 2 mM L-glut, 10 mM Hepes, and 1 mM sodium pyruvate. Compounds were spotted in empty 384 well tissue culture plates (Greiner 781182) by Echo for a final concentration of 0.0017-100 μM. Cells were plated into the TC plates at 40 μL per well, 2×10E6 cells/mL. For activation with STING ligand, 2′3′cGAMP (MW 718.38, obtained from Invivogen), was prepared in Optimem media.


The following solutions were prepared for each 1×384 plate:

    • Solution A: 2 mL Optimem with one of the following stimuli:
      • 60 μL of 10 mM 2′3′cGAMP→150 μM stock
    • Solution B: 2 mL Optimem with 60 μL Lipofectamine 2000→Incubate 5 min at RT


2 mL of solution A and 2 ml Solution B was mixed and incubated for 20 min at room temperature (RT). 20 μL of transfection solution (A+B) was added on top of the plated cells, with a final 2′3′cGAMP concentration of 15 μM. The plates were then centrifuged immediately at 340 g for 1 minute, after which they were incubated at 37° C., 5% CO2,>98% humidity for 24 h. Luciferase reporter activity was then measured. EC50 values were calculated by using standard methods known in the art.


Luciferase reporter assay: 10 μL of supernatant from the assay was transferred to white 384-plate with flat bottom and squared wells. One pouch of QUANTI-Luc™ Plus was dissolved in 25 mL of water. 100 μL of QLC Stabilizer per 25 mL of QUANTI-Luc™ Plus solution was added. 50 μL of QUANTI-Luc™ Plus/QLC solution per well was then added. Luminescence was measured on a Platereader (e.g., Spectramax I3X (Molecular Devices GF3637001)).


Luciferase reporter activity was then measured. EC50 values were calculated by using standard methods known in the art.


Table BA shows the activity of compounds in STING reporter assay: <0.008 μM=“++++++”; ≥0.008 and ≤0.04 μM=“+++++”; ≥0.04 and <0.2 μM=“++++”; ≥0.2 and <1 μM=“+++”; ≥1 and <5 μM=“++”; ≥5 and <100 μM=“+”.














TABLE BA








hSTING

hSTING



Compound #
EC50
Compound #
EC50









101
+++
151
+++



102
+++
152
+++



103
+
153
+++



104
++
154
+++



105
+++
155
++++



106
+++
156
+++



107
+++
157
+++



108
+++
158
++++



109
+++
159
++++



110
++++
160
++++



111
++
161
++++



112
+++
162
++++



113
+++
163
++++



114
+++
164
++



115
+++
165
++++



116
+++
166
+++



117
+++
168
+++



118
+++
169
+++



119
+++
170
+++



120
+++
171
+++



121
++
172
+++



122
+++
173
++



123
++
174
+++



124
+
175
+



125
+++
176
+++



126
+++
179
+++



127
+++
180
+++



128
+++
181
+++



129
++
182
++++



130
+++
183
++



131
++
184
++



132
+++
185
+++



133
+++
186
++



134
+++
187
+++



135
+++
188
+++



136
+++
189
+++



137
+++
190
+++



138
+++
191
+++



139
+++
192
+++



140
+++
193
++



141
+++
194
+++



142
+++
195
+++



143
++
196
+++



144
++
197
+++



145
+++
198
+++



146
++++
199
+++



147
+++
250
++



148
+++
251
++



149
+++
252
++



150
++++
253
++



218
+++
254
+++



219
++++
255
++



220
++++
256
++



221
++++
257
+



222
+++
258
+++



223
++++
259
+++



224
++++
260
+++



225
++++
261
+++



226
+++
262
+++



227
++++
263
+++



228
++
264
+ +



229
++++
265
+++



230
++++
266
+++



231
+++
267
+++



232
+++
268
+++



233
+++
269
++



234
+++
270
+



235
+
271
+++



236
+++
272
+++



237
+++
273
+



238
+
274
+++



239
+++
275
++



240
+++
276
+++



241
+
277
+



242
+++
278
++



243
+++
279
++



244
+++
280
+++



245
+++





246
+++





247
+++





248
+





249
+++





209
+++





201
+++





213
+++





216
+++





200
+++





204
+++





203
+++





208
+++





207
++










Numbered Clauses

The compounds, compositions, methods, and other subject matter described herein are further described in the following numbered clauses:


1. A compound of Formula (I):




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or a pharmaceutically acceptable salt thereof or a tautomer thereof, wherein:


P1, P2, P3, P4, and P5 are each independently selected from the group consisting of: N, NH, NRd, NR7, CH, CRc, CR7, and C(═O), provided that 1-3, such as 1, of P2, P3, and P4 is CR7 or NR7;


each occurrence of R7 is independently -(LA)a1-R8, wherein:


each LA is independently selected from the group consisting of: C1-3 alkylene optionally substituted with 1-4 Ra1; —O—; —NRN; —S(O)0-2; C(O); C(O)O; OC(O); NRNC(O); C(O)NRN; NRNC(O)NRN; NRNC(O)O; and OC(O)NRN;


a1 is 0, 1, 2, or 3; and


each occurrence of R8 is independently Rg or C1-10 alkyl optionally substituted with 1-6 Ra1;


Z, Y1, Y2, and Y3 are independently selected from the group consisting of CR1, C(═O), N, and NR2;


X1 is selected from the group consisting of O, S, N, NR2, and CR1;


X2 is selected from the group consisting of O, S, N, NR4, and CR5; provided that:


(1) 0-1 of Z, Y1, Y2, and Y3 is N or NR2;


(2) when each one of Z, Y1, and Y2 is CR1, then Y3 cannot be N; and


(3) when each one of Z Y, Y2, and Y3 is CR1, then at least one R1 is other than H;


each custom-character is independently a single bond or a double bond, provided that the five-membered ring comprising X1 and X2 is heteroaryl; the six-membered ring comprising Z, Y1, Y2, and Y3 is aryl or heteroaryl; and the six-membered ring comprising P1, P2, P3, P4, and P5 is aryl or heteroaryl;


each R1 is independently selected from the group consisting of: H; Rc; Rg; and -(L1)b1-Rg,


each R2 is independently selected from the group consisting of: H; Rd; Rg; and -(L2)b2-Rg,


R4 is selected from the group consisting of: H and Rd;


R5 is selected from the group consisting of: H; Rc; and Rh;


R6 is selected from the group consisting of: H; Rd; and Rh;


each occurrence of Ra and Ra1 is independently selected from the group consisting of: —OH; -halo; —NReRf; C1-4 alkoxy; C1-4 haloalkoxy; —C(═O)O(C1-4 alkyl); —C(═O)(C1-4 alkyl); —C(═O)OH; —CONR′R″; —S(O)1-2NR′R″; —S(O)1-2(C1-4 alkyl); and cyano;


each occurrence of Rc is independently selected from the group consisting of: halo; cyano; C1-10 alkyl which is optionally substituted with 1-6 independently selected Ra; C2-6 alkenyl; C2-6 alkynyl; C1-4 alkoxy optionally substituted with C1-4 alkoxy or C1-4 haloalkoxy; C1-4 haloalkoxy; —S(O)1-2(C1-4 alkyl); —S(O)(═NH)(C1-4 alkyl); —NReRf; —OH; —S(O)1-2NR′R″; —C1-4 thioalkoxy; —NO2; —C(═O)(C1-10 alkyl); —C(═O)O(C1-4 alkyl); —C(═O)OH; —C(═O)NR′R″; and —SF5;


each occurrence of Rd is independently selected from the group consisting of: C1-6 alkyl optionally substituted with 1-3 independently selected Ra; —C(O)(C1-4 alkyl); —C(O)O(C1-4 alkyl); —CONR′R″; —S(O)1-2NR′R″; —S(O)1-2(C1-4 alkyl); —OH; and C1-4 alkoxy;


each occurrence of Re and Rf is independently selected from the group consisting of: H; C1-6 alkyl optionally substituted with 1-3 substituents each independently selected from the group consisting of NR′R″, —OH, and Ri; —C(O)(C1-4 alkyl); —C(O)O(C1-4 alkyl); —CONR′R″; —S(O)1-2NR′R″; —S(O)1-2(C1-4 alkyl); —OH; and C1-4 alkoxy;


each occurrence of Rg is independently selected from the group consisting of:

    • C3-12 cycloalkyl or C3-12 cycloalkenyl, each of which is optionally substituted with 1-4 substituents independently selected from the group consisting of oxo, Rc, Rh, and -(Lg)bg-Rh;
    • heterocyclyl or heterocycloalkenyl of 3-12 ring atoms, wherein 1-3 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S(O)0-2, and wherein the heterocyclyl or heterocycloalkenyl is optionally substituted with 1-4 substituents independently selected from the group consisting of oxo, Rc, Rh, and -(Lg)bg-Rh;
    • heteroaryl of 5-12 ring atoms, wherein 1-4 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S(O)0-2, and wherein the heteroaryl is optionally substituted with 1-4 substituents independently selected from the group consisting of Rc, Rh, and -(Lg)bg-Rh and
    • C6-10 aryl optionally substituted with 1-4 substituents independently selected from the group consisting of Rc, Rh, and -(Lg)bg-Rh;


each occurrence of Rh is independently selected from the group consisting of:

    • C3-12 cycloalkyl or C3-12 cycloalkenyl, each of which is optionally substituted with 1-4 Ri;
    • heterocyclyl or heterocycloalkenyl of 3-12 ring atoms, wherein 1-3 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S(O)0-2, and wherein the heterocyclyl or heterocycloalkenyl is optionally substituted with 1-4 Ri;
    • heteroaryl of 5-12 ring atoms, wherein 1-4 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S(O)0-2, and wherein the heteroaryl is optionally substituted with 1-4 Ri; and
    • C6-10 aryl optionally substituted with 1-4 Ri;


each occurrence of R1 is independently selected from the group consisting of: C1-6 alkyl; C1-4 haloalkyl; C1-4 alkoxy; C1-4 haloalkoxy; C1-6 alkyl-O—C1-6 alkyl-; C1-4 haloalkyl-O—C1-6 alkyl-; halo; cyano; —OH; —NR′R″; and C3-6 cycloalkyl;


each occurrence of L1, L2, and Lg is independently selected from the group consisting of: —O—, —NH—, —NRd, —S(O)0-2, C(O), and C1-3 alkylene optionally substituted with 1-3 Ra;


b1, b2, and bg are each independently 1, 2, or 3;


each occurrence of R′ and R″ is independently selected from the group consisting of: H; —OH; and C1-4 alkyl; and


each occurrence of RN is independently H or Rd;


provided that the six-membered ring including P1, P2, P3, P4, and P5 is other than:




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2. A compound of Formula (II):




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or a pharmaceutically acceptable salt thereof or a tautomer thereof, wherein:


P1, P2, P3, P4, and P5 are each independently selected from the group consisting of: N, NH, NRd, NR7, CH, CRc, CR7, and C(═O), provided that 1-3, such as 1, of P2, P3, and P4 is CR7 or NR7;


each occurrence of R7 is independently -(LA)a1-R8, wherein:


each LA is independently selected from the group consisting of: C1-3 alkylene optionally substituted with 1-2 Ra1; —O—; —NRN; —S(O)0-2; C(O); C(O)O; OC(O); NRNC(O); C(O)NRN; NRNC(O)NRN; NRNC(O)O; and OC(O)NRN; a1 is 0, 1, 2, or 3; and


each occurrence of R8 is independently Rg or C1-10 alkyl optionally substituted with 1-6 Ra1;


X1 is selected from the group consisting of O, S, N, NR2, and CR1;


X2 is selected from the group consisting of O, S, N, NR4, and CR5;


each custom-character is independently a single bond or a double bond, provided that the five-membered ring comprising X1 and X2 is heteroaryl; and the six-membered ring comprising P1, P2, P3, P4, and P5 is aryl or heteroaryl;


R1 is selected from the group consisting of: H; Rc; Rg; and -(L1)bi-Rg;


R2 is selected from the group consisting of: H; Rd; Rg; and -(L2)b2-Rg;


R4 is selected from the group consisting of: H and Rd,


R5 is selected from the group consisting of: H; Rc; and Rh;


R6 is selected from the group consisting of: H; Rd; and Rh;


each occurrence of Ra and Ra1 is independently selected from the group consisting of: —OH; -halo; —NReRf; C1-4 alkoxy; C1-4 haloalkoxy; —C(═O)O(C1-4 alkyl); —C(═O)(C1-4 alkyl); —C(═O)OH; —CONR′R″; —S(O)1-2NR′R″; —S(O)1-2(C1-4 alkyl); and cyano;


each occurrence of Rc is independently selected from the group consisting of: halo; cyano; C1-10 alkyl which is optionally substituted with 1-6 independently selected Ra; C2-6 alkenyl; C2-6 alkynyl; C1-4 alkoxy optionally substituted with C1-4 alkoxy or C1-4 haloalkoxy; C1-4 haloalkoxy; —S(O)1-2(C1-4 alkyl); —S(O)(═NH)(C1-4 alkyl); —NReRf; —OH; —S(O)1-2NR′R″; —C1-4 thioalkoxy; —NO2; —C(═O)(C1-10 alkyl); —C(═O)O(C1-4 alkyl); —C(═O)OH; —C(═O)NR′R″; and —SF5;


each occurrence of Rd is independently selected from the group consisting of: C1-6 alkyl optionally substituted with 1-3 independently selected Ra; —C(O)(C1-4 alkyl); —C(O)O(C1-4 alkyl); —CONR′R″; —S(O)1-2NR′R″; —S(O)1-2(C1-4 alkyl); —OH; and C1-4 alkoxy;


each occurrence of Re and Rf is independently selected from the group consisting of: H; C1-6 alkyl optionally substituted with 1-3 substituents each independently selected from the group consisting of NR′R″, —OH, and Ri; —C(O)(C1-4 alkyl); —C(O)O(C1-4 alkyl); —CONR′R″; —S(O)1-2NR′R″; —S(O)1-2(C1-4 alkyl); —OH; and C1-4 alkoxy;


each occurrence of Rg is independently selected from the group consisting of:

    • C3-12 cycloalkyl or C3-12 cycloalkenyl, each of which is optionally substituted with 1-4 substituents independently selected from the group consisting of oxo, Rc, Rh, and -(Lg)bg-Rh;
    • heterocyclyl or heterocycloalkenyl of 3-12 ring atoms, wherein 1-3 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S(O)0-2, and wherein the heterocyclyl or heterocycloalkenyl is optionally substituted with 1-4 substituents independently selected from the group consisting of oxo, Rc, Rh, and -(Lg)bg-Rh;
    • heteroaryl of 5-12 ring atoms, wherein 1-4 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S(O)0-2, and wherein the heteroaryl is optionally substituted with 1-4 substituents independently selected from the group consisting of Rc, Rh, and -(Lg)bg-Rh and
    • C6-10 aryl optionally substituted with 1-4 substituents independently selected from the group consisting of Rc, Rh, and -(Lg)bg-Rh;


each occurrence of Rh is independently selected from the group consisting of:

    • C3-12 cycloalkyl or C3-12 cycloalkenyl, each of which is optionally substituted with 1-4 Ri;
    • heterocyclyl or heterocycloalkenyl of 3-12 ring atoms, wherein 1-3 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S(O)0-2, and wherein the heterocyclyl or heterocycloalkenyl is optionally substituted with 1-4 Ri;
    • heteroaryl of 5-12 ring atoms, wherein 1-4 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S(O)0-2, and wherein the heteroaryl is optionally substituted with 1-4 Ri; and
    • C6-10 aryl optionally substituted with 1-4 Ri;


each occurrence of R1 is independently selected from the group consisting of: C1-6 alkyl; C1-4 haloalkyl; C1-4 alkoxy; C1-4 haloalkoxy; C1-6 alkyl-O—C1-6 alkyl-; C1-4 haloalkyl-O—C1-6 alkyl-; halo; cyano; —OH; —NR′R″; and C3-6 cycloalkyl;


each occurrence of L1, L2, and L9 is independently selected from the group consisting of: —O—, —NH—, —NRd, —S(O)0-2, C(O), and C1-3 alkylene optionally substituted with 1-3 Ra;


b1, b2, and bg are each independently 1, 2, or 3;


each occurrence of R′ and R″ is independently selected from the group consisting of: H; —OH; and C1-4 alkyl; and


each occurrence of RN is independently H or Rd;


provided that the ring including P1, P2, P3, P4, and P5 is other than:


(iv) phenyl, pyridyl, or pyrimidinyl, each substituted with one substituent selected from the group consisting of: OMe; CH2NH2; CH2NHC(O)OMe; CH2NHC(O)OEt; CH2NHC(O)Me; CH2NHC(O)N(Me)2; CH2NHS(O)2Me; methyl; tert-butyl; NHMe; morpholinyl; CH2OH; 1,2,4-triazolyl; or trisubstituted pyrazolyl;


(v) pyrimidinyl substituted with two substituents each independently selected from the group consisting of: methyl, ethyl, and pyrrolidinyl; and




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3. A compound of Formula (III)




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or a pharmaceutically acceptable salt thereof or a tautomer thereof, wherein:


P1, P2, P3, P4, and P5 are each independently selected from the group consisting of: N, NH, NRd, NR7, CH, CRc, CR7, and C(═O), provided that 1-3, such as 1, of P2, P3, and P4 is CR7 or NR7;


each occurrence of R7 is independently -(LA)a1-R8, wherein:


each LA is independently selected from the group consisting of: C1-3 alkylene optionally substituted with 1-2 Ra1; —O—; —NRN; —S(O)0-2; C(O); C(O)O; OC(O); NRNC(O); C(O)NRN; NRNC(O)NRN; NRNC(O)O; and OC(O)NRN;


a1 is 0, 1, 2, or 3; and


each occurrence of R8 is independently Rg or C1-10 alkyl optionally substituted with 1-6 Ra1;


X1 is selected from the group consisting of O, S, N, NR2, and CR1;


X2 is selected from the group consisting of O, S, N, NR4, and CR5; provided that:


each custom-character is independently a single bond or a double bond, provided that the five-membered ring comprising X1 and X2 is heteroaryl; and the six-membered ring comprising P1, P2, P3, P4, and P5 is aryl or heteroaryl;


R1, R1a, R1b, and R1c are each independently selected from the group consisting of: H; Rc; Rg; and -(L1)b1-Rg;


each R2 is independently selected from the group consisting of: H; Rd; Rg; and -(L2)b2-Rg,


R4 is selected from the group consisting of: H and Rd;


R5 is selected from the group consisting of: H; Rc; and Rh;


R6 is selected from the group consisting of: H; Rd; and Rh;


each occurrence of Ra and Ra1 is independently selected from the group consisting of: —OH; -halo; —NReRf; C1-4 alkoxy; C1-4 haloalkoxy; —C(═O)O(C1-4 alkyl); —C(═O)(C1-4 alkyl); —C(═O)OH; —CONR′R″; —S(O)1-2NR′R″; —S(O)1-2(C1-4 alkyl); and cyano;


each occurrence of Rc is independently selected from the group consisting of: halo; cyano; C1-10 alkyl which is optionally substituted with 1-6 independently selected Ra; C2-6 alkenyl; C2-6 alkynyl; C1-4 alkoxy optionally substituted with C1-4 alkoxy or C1-4 haloalkoxy; C1-4 haloalkoxy; —S(O)1-2(C1-4 alkyl); —S(O)(═NH)(C1-4 alkyl); —NReRf; —OH; —S(O)1-2NR′R″; —Cl-4 thioalkoxy; —NO2; —C(═O)(C1-10 alkyl); —C(═O)O(C1-4 alkyl); —C(═O)OH; —C(═O)NR′R″; and —SF5;


each occurrence of Rd is independently selected from the group consisting of: C1-6 alkyl optionally substituted with 1-3 independently selected Ra; —C(O)(C1-4 alkyl); —C(O)O(C1-4 alkyl); —CONR′R″; —S(O)1-2NR′R″; —S(O)1-2(C1-4 alkyl); —OH; and C1-4 alkoxy;


each occurrence of Re and R is independently selected from the group consisting of: H; C1-6 alkyl optionally substituted with 1-3 substituents each independently selected from the group consisting of NR′R″, —OH, and Ri; —C(O)(C1-4 alkyl); —C(O)O(C1-4 alkyl); —CONR′R″; —S(O)1-2NR′R″; —S(O)1-2(C1-4 alkyl); —OH; and C1-4 alkoxy;


each occurrence of Rg is independently selected from the group consisting of:

    • C3-12 cycloalkyl or C3-12 cycloalkenyl, each of which is optionally substituted with 1-4 substituents independently selected from the group consisting of oxo, Rc, Rh, and -(Lg)bg-Rh;
    • heterocyclyl or heterocycloalkenyl of 3-12 ring atoms, wherein 1-3 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S(O)0-2, and wherein the heterocyclyl or heterocycloalkenyl is optionally substituted with 1-4 substituents independently selected from the group consisting of oxo, Rc, Rh, and -(Lg)bg-Rh;
    • heteroaryl of 5-12 ring atoms, wherein 1-4 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S(O)0-2, and wherein the heteroaryl is optionally substituted with 1-4 substituents independently selected from the group consisting of Rc, Rh, and -(Lg)bg-Rh; and
    • C6-10 aryl optionally substituted with 1-4 substituents independently selected from the group consisting of Rc, Rh, and -(Lg)bg-Rh;


each occurrence of Rh is independently selected from the group consisting of:

    • C3-12 cycloalkyl or C3-12 cycloalkenyl, each of which is optionally substituted with 1-4 Ri;
    • heterocyclyl or heterocycloalkenyl of 3-12 ring atoms, wherein 1-3 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S(O)0-2, and wherein the heterocyclyl or heterocycloalkenyl is optionally substituted with 1-4 Ri;
    • heteroaryl of 5-12 ring atoms, wherein 1-4 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S(O)0-2, and wherein the heteroaryl is optionally substituted with 1-4 Ri; and
    • C6-10 aryl optionally substituted with 1-4 Ri;


each occurrence of Ri is independently selected from the group consisting of: C1-6 alkyl; C1-4 haloalkyl; C1-4 alkoxy; C1-4 haloalkoxy; C1-6 alkyl-O—C1-6 alkyl-; C1-4 haloalkyl-O—C1-6 alkyl-; halo; cyano; —OH; —NR′R″; and C3-6 cycloalkyl;


each occurrence of L1, L2, and L9 is independently selected from the group consisting of: —O—, —NH—, —NRd, —S(O)0-2, C(O), and C1-3 alkylene optionally substituted with 1-3 Ra;


b1, b2, and bg are each independently 1, 2, or 3;


each occurrence of R′ and R″ is independently selected from the group consisting of: H; —OH; and C1-4 alkyl; and each occurrence of RN is independently H or Rd;


provided that the ring including P1, P2, P3, P4, and P5 is other than:




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(v) phenyl, pyridyl, pyridonyl, or pyridazinonyl substituted with one substituent selected from the group consisting of: OMe; methyl; trifluoromethyl; NHC(O)Me; NMe2; CH2CH2-pyrrolindinyl; or


(vi) 3-fluoro-4-methoxyphenyl; 2-fluoro-5-methylphenyl; or dimethoxypyridyl; and


R1a is other than monocyclic heterocyclyl of 5-6 ring atoms, wherein 1-2 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S(O)0-2, and wherein the heterocyclyl is optionally substituted with 1-4 substituents independently selected from the group consisting of oxo, Rc, Rh, and -(Lg)bg-Rh.


4. The compound of clause 1, wherein each of Z, Y1, Y2, and Y3 is independently N or CR1.


5. The compound of clauses 1 or 4, wherein the compound is a compound of Formula (Ia):




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or a pharmaceutically acceptable salt thereof, wherein: R1a, R1b, R1c, and R1d are each an independently selected R1.


6. The compound of clauses 1 or 4, wherein one of Z, Y1, and Y2 is N; and each remaining of Z, Y1, Y2, and Y3 is an independently selected CR1.


7. The compound of any one of clauses 1, 4, or 6, wherein the compound is selected from the group consisting of a compound of the following formulae:




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or a pharmaceutically acceptable salt thereof, wherein. R1a, R1b, R1c, and R1d are each an independently selected R1.


8. The compound of any one of clauses 1-7, wherein X1 is NR2.


9. The compound of any one of clauses 1-8, wherein X1 is NH.


10. The compound of any one of clauses 1-9, wherein X2 is CR5.


11. The compound of any one of clauses 1-10, wherein X2 is CH.


12. The compound of any one of clauses 1-7, wherein X1 is NR2; and X2 is CR.


13. The compound of any one of clauses 1-7 or 12, wherein X1 is NH; and X2 is CH.


14. The compound of clause 1, wherein the compound is a compound of Formula (Ia-1):




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or a pharmaceutically acceptable salt thereof, wherein: R1a, R1b, R1c, and R1d are each an independently selected Ri.


15. The compound of clause 1, wherein the compound is selected from the group consisting of a compound of the following formulae:




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or a pharmaceutically acceptable salt thereof, wherein R1a, R1b, R1c, and R1d are each an independently selected R1.


16. The compound of clause 2, wherein the compound is a compound of Formula (II-1):




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or a pharmaceutically acceptable salt thereof.


17. The compound of clause 3, wherein the compound of a compound of Formula (III-1):




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or a pharmaceutically acceptable salt thereof.


18. The compound of any one of clauses 14-17, wherein R2 is H.


19. The compound of any one of clauses 14-18, wherein R5 is H.


20. The compound of any one of clauses 1 or 4-15, wherein from 1-2 R1 is independently selected from the group consisting of: Rc1 and Rg1; and each remaining R1 is H, wherein Rc1 is an independently selected Rc; and Rg1 is an independently selected Rg.


21. The compound of clause 20, wherein two occurrences of R1 are independently selected from the group consisting of: Rc1 and Rg1; and each remaining Ri is H.


22. The compound of clauses 20 or 21, wherein two occurrences of R1 are independently selected Rc1; and each remaining R1 is H.


23. The compound of clause 20, wherein one occurrence of R1 is selected from the group consisting of: Rc1 and Rg1; and each remaining R1 is H.


24. The compound of clauses 20 or 23, wherein one occurrence of R1 is R1; and each remaining R1 is H.


25. The compound of clauses 20 or 23, wherein one occurrence of R1 is Rg1; and each remaining R1 is H.


26. The compound of clause 20, wherein one occurrence of R1 is R1; one occurrence of R1 is Rg1; and each remaining R1 is H.


27. The compound of any one of clauses 20-26, wherein each Rc1 is an independently selected halo, cyano, C1-3 alkyl, C1-3 alkoxy, C1-3 haloalkoxy, or C1-3 alkyl substituted with from 1-6 independently selected halo, such as wherein Rc1 is —F, —Cl, or —CN.


28. The compound of clause 27, wherein each Rc1 is independently —F or —Cl, such as —F.


29. The compound of any one of clauses 20-28, wherein each Rg1 is independently selected from the group consisting of:

    • heteroaryl of 5-10 ring atoms, wherein from 1-3 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S, and wherein the heteroaryl is optionally substituted with from 1-4 substituents independently selected from the group consisting of Rc, Rh, and -(Lg)bg-Rh; and
    • C6-10 aryl optionally substituted with from 1-4 substituents independently selected from the group consisting of Rc, Rh, and -(LA)bg-Rh.


30. The compound of clause 29, wherein each Rg1 is independently selected from the group consisting of:

    • heteroaryl of 5-6 ring atoms, wherein from 1-3 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S, and wherein the heteroaryl is optionally substituted with from 1-4 Rc; and
    • C6 aryl optionally substituted with from 1-4 Rc


31. The compound of clauses 29 or 30, wherein each Rg1 is independently heteroaryl of 5 ring atoms, wherein from 1-3 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S, and wherein the heteroaryl is optionally substituted with from 1-4 Rc.


32. The compound of clause 31, wherein each Rg1 is pyrazolyl that is optionally substituted with from 1-2 Rc, such from 1-2 independently selected C1-6 (e.g., C1-3) alkyl which is optionally substituted with from 1-6 independently selected Ra (e.g., unsubstituted C1-6 (e.g., C1-3) alkyl).


33. The compound of clause 32, wherein Rg1 is




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and optionally Rc is C1-6 (e.g., C1-3) alkyl which is optionally substituted with from 1-6 independently selected Ra.


34. The compound of clause 29, wherein each Rg1 is independently selected from the group consisting of:

    • heteroaryl of 5-10 ring atoms, wherein from 1-3 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S, and wherein the heteroaryl is substituted with one occurrence of Rh1 or -(Lg)bg-Rh1 (such as Rh1 or —CH2—Rh1) and further optionally substituted with from 1-2 Rc; and
    • C6-10 aryl that is substituted with one occurrence of Rh1 or -(Lg)bg-Rh1 (such as Rh1 or —CH2—Rh1) and further optionally substituted with from 1-2 Rc, wherein Rh1 is an independently selected Rh.


35. The compound of clause 34, wherein each Rg1 is heteroaryl of 5-6 (such as 5) ring atoms, wherein from 1-3 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S, and wherein the heteroaryl is substituted with one occurrence of Rh1 or -(Lg)bg-Rh1 (such as Rh1 or —CH2—Rh1) and further optionally substituted with from 1-2 Rc, wherein Rh1 is an independently selected Rh.


36. The compound of clause 35, wherein each Rg1 is pyrazolyl that is substituted with Rh1 or -(LA)bg-Rh1 (such as Rh1 or —CH2Rh1) and further optionally substituted with from 1-2 Rc.


37. The compound of clause 36, wherein each Rg1 is




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each of which is optionally substituted with Rc.


38. The compound of any one of clauses 34-37, wherein Rh1 is selected from the group consisting of:

    • heteroaryl of 5-6 ring atoms, wherein from 1-3 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S(O)0-2, and wherein the heteroaryl is optionally substituted with from 1-4 Ri; and
    • C6 aryl optionally substituted with from 1-4 Ri, such as: wherein Rg1 is phenyl optionally substituted with from 1-4 Ri.


39. The compound of clause 38, wherein Rh1 is selected from the group consisting of:

    • heteroaryl of 5-6 ring atoms, wherein from 1-3 ring atoms are heteroatoms, 20 each independently selected from the group consisting of N, N(H), N(Rd), O, and S(O)0-2, and wherein the heteroaryl is optionally substituted with from 1-2 Ri; and
    • C6 aryl optionally substituted with from 1-2 Ri, such as wherein Rg1 is phenyl optionally substituted with from 1-4 Ri.


40. The compound of any one of clauses 3, 5, 7, 14-15, or 17, wherein R″ H.


41. The compound of any one of clauses 3, 5, 7, 14-15, 17, or 40, wherein R1b is H.


42. The compound of any one of clauses 3, 5, 7, 14-15, 17, or 40, wherein R1b is halo, such as —F or —Cl (e.g., —F).


43. The compound of any one of clauses 3, 5, 7, 14-15, 17, or 40, wherein R1b is heteroaryl of 5 ring atoms, wherein from 1-3 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S, and wherein the heteroaryl is optionally substituted with from 1-2 Rc.


44. The compound of clause 43, wherein R1b is pyrazolyl that is optionally substituted with from 1-2 Rc, such as each Rc is an independently selected C1-6 (e.g., C1-3) alkyl which is optionally substituted with from 1-6 independently selected Ra (e.g., unsubstituted).


45. The compound of any one of clauses 3, 5, 7, 14-15, 17, or 40, wherein R1b is heteroaryl of 5-6 (such as 5) ring atoms, wherein from 1-3 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S, and wherein the heteroaryl is substituted with one occurrence of Rh1 or -(Lg)bg-Rh1 (such as Rh1 or —CH2—Rh1) and further optionally substituted with from 1-2 Rc, wherein Rh1 is an independently selected Rh.


46. The compound of clause 45, wherein R1b is pyrazolyl that is substituted with Rh1 or -(Lg)bg-Rh1 (such as Rh1 or —CH2Rh1) and further optionally substituted with from 1-2 Rc, such as wherein R1b is




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each of which is optionally substituted with Rc.


47. The compound of any one of clauses 3, 5, 7, 14-15, 17, or 40-46, wherein R1c is H.


48. The compound of any one of clauses 3, 5, 7, 14-15, 17, or 40-46, wherein R1c is halo, such as —F or —Cl.


49. The compound of any one of clauses 3, 5, 7, 14-15, 17, or 40-48, wherein R1d is H.


50. The compound of any one of clauses 3, 5, 7, 14-15, 17, or 40-49, wherein R1d is halo, such as —F or —Cl (e.g., —F).


51. The compound of any one of clauses 3, 5, 7, 14-15, or 17, wherein R1a and R1d are H; and R1b and R1c are independently selected halo, such as —F or —Cl, such as —F; such as: wherein R1b and R1c are —F; or wherein R1b is —F, and R1c is —Cl; or wherein R1b is —Cl, and R1c is —F.


52. The compound of any one of clauses 3, 5, 7, 14-15, or 17, wherein R1a and R1d are H; one of R1b and R1c is H; and the other one of R1b and R1c is halo, such as —F or —Cl, such as —F; such as: wherein R1b is H, and R1c is —F; or wherein R1b is H, and R1c is —Cl; or wherein R1b is —F, and R1c is H; or wherein R1b is —Cl, and R1c is H.


53. The compound of any one of clauses 3, 5, 7, 14-15, or 17, wherein R1a and R1d are H; R1c is halo or H, such as —F, —Cl, or H; and R1b is heteroaryl of 5 ring atoms, wherein from 1-3 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S, and wherein the heteroaryl is optionally substituted with from 1-4 Rc.


54. The compound of any one of clauses 3, 5, 7, 14-15, or 17, wherein R1a and R1d are H; R1c is halo or H, such as —F, —Cl, or H; and R1b is heteroaryl of 5-6 (such as 5) ring atoms, wherein from 1-3 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S, and wherein the heteroaryl is substituted with one occurrence of Rh1 or -(Lg)bg-Rh1 (such as Rh1 or —CH2—Rh1) and further optionally substituted with from 1-2 Rc, wherein Rh1 is an independently selected Rh.


55. The compound of any one of clauses 1-54, wherein R6 is H.


56. The compound of any one of clauses 1-55, wherein P1 and P5 are independently CH or CRc; and P2, P3, and P4 are independently CH, CRc, or CR7.


57. The compound of any one of clauses 1-55, wherein one of P1, P2, P3, P4, and P5 is N.


58. The compound of any one of clauses 1-55, wherein two of P1, P2, P3, P4, and P5 are N.


59. The compound of any one of clauses 1-58, wherein one of P2, P3, and P4 is CR7.


60. The compound of any one of clauses 1-59, wherein P3 is CR7.


61. The compound of clause 60, wherein P4 is N.


62. The compound of clause 60, wherein P4 is CH or CRc.


63. The compound of any one of clauses 60-62, wherein P1 is N.


64. The compound of any one of clauses 60-62, wherein P1 is CH or CRc.


65. The compound of any one of clauses 60-64, wherein P2 and P5 are independently CH or CRc.


66. The compound of any one of clauses 1-55, wherein P3 is CR7; P1, P2, P4, and P5 are independently CH or CRc.


67. The compound ofany one of clauses 1-55 or 66, wherein the




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moiety has the formula:




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wherein n7 is 0, 1, or 2; and each Rc7 is an independently selected Rc, such as:




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68. The compound of any one of clauses 1-55, wherein P3 is CR7; P4 is N; and P1, P2, and P5 are independently CH or CRc.


69. The compound of clause 68, wherein the




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moiety has the formula:




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wherein n7 is 0, 1, or 2; and each Rc7 is an independently selected Rc, such as:




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70. The compound of any one of clauses 1-55, wherein P3 is CR7; P4 and P1 are N; and P2 and P5 are independently CH or CRc.


71. The compound of clause 70, wherein the




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moiety has the formula:




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wherein n7 is 0, 1, or 2; and each Rc7 is an independently selected Rc, such as:




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72. The compound of any one of clauses 1-59, wherein P4 is CR7.


73. The compound of clause 72, wherein P3 is N.


74. The compound of clause 72, wherein P3 is CH or CRc.


75. The compound of any one of clauses 72-74, wherein P1, P2, and P5 are independently CH or CRc.


76. The compound of any one of clauses 1-55, wherein P4 is CR7; P3 is CH or CRc; and P1, P2, and P5 are independently CH or CRc.




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77. The compound of clause 76, wherein the P1: moiety has the formula:




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wherein n7 is 0, 1, or 2; and each Rc7 is an independently selected Rc, such as:




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78. The compound of any one of clauses 1-55, wherein P4 is CR7; P3 is N; and P1, P2, and P5 are independently CH or CRc.


79. The compound of clause 78, wherein the




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moiety has the formula:




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wherein n7 is 0, 1, or 2; and each Rc7 is an independently selected Rc, such as:




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80. The compound of any one of clauses 1-55, wherein the




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moiety has the formula:




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wherein n7 is 0, 1, or 2; and each Rc7 is an independently selected Rc.


81. The compound of any one of clauses 67-80, wherein each occurrence of R7 is independently selected from the group consisting of halo; cyano; C1-3 alkyl; C1-4 alkoxy; C1-4 haloalkoxy; and C1-3 alkyl substituted with from 1-6 independently selected halo, such as —F.


82. The compound of any one of clauses 1-81, wherein a1 is 0.


83. The compound of any one of clauses 1-81, wherein a1 is 1.


84. The compound of any one of clauses 1-81 or 83, wherein LA is —O—, —NH— or —CH2—, such as wherein LA is —O—.


85. The compound of any one of clauses 1-81, wherein a1 is 2; and -(LA)a1- is -LA1-LA2, wherein LA1 and LA2 are independently selected LA; and LA2 is the point of attachment to R8.


86. The compound of clause 85, wherein LA1 is —O—; and LA2 is C1-3 alkylene optionally substituted with from 1-2 Ra1, such as wherein LA1 is —O—; and LA2 is CH2.


87. The compound of any one of clauses 1-81, wherein a1 is 3; and -(LA)a1- is -LA1-LA2-LA3, wherein LA1, LA2, and LA3 are independently selected LA; and LA3 is the point of attachment to R8.


88. The compound of clause 87, wherein LA1 and LA3 are each independently C1-3 alkylene optionally substituted with from 1-2 Ra1;


89. The compound of clauses 87 or 88, wherein LA2 is NRNC(O)O or OC(O)NRN.


90. The compound of any one of clauses 1-89, wherein R8 is C1-10 alkyl optionally substituted with 1-4 Ra1;


91. The compound of any one of clauses 1-90, wherein R8 is C1-10 alkyl, such as C1-7 alkyl, such as C1, C2, C3, C4, C5, C6, or C7 alkyl, such as ethyl or isopropyl.


92. The compound of any one of clauses 1-89, wherein R8 is C1-10 alkyl substituted with 1-6 Ra1, such as C1, C2, C3, C4, C5, C6, or C7 alkyl substituted with from 1-6 Ra1.


93. The compound of clause 92, wherein each Ra1 is selected from the group consisting of: halo, such as —F; —OH; C1-4 alkoxy; and C1-4 haloalkoxy.


94. The compound of any one of clauses 1-90 or 92, wherein R8 is C1-10 alkyl substituted with 1-6 independently selected halo, such as C1, C2, C3, C4, C5, C6, or C7 alkyl substituted with from 1-6 independently selected halo.


95. The compound of clause 94, wherein R8 is C1-10 alkyl substituted with 1-6-F, such as C1, C2, C3, C4, C5, C6, or C7 alkyl substituted with from 1-6-F, such as




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96. The compound of any one of clauses 1-90 or 92-93, wherein R8 is C1-10 alkyl substituted with —OH, C1-4 alkoxy, or C1-4 haloalkoxy, such as C1, C2, C3, C4, C5, C6, or C7 alkyl substituted with from 1-6 independently selected C1-4 alkoxy, such as




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97. The compound of any one of clauses 1-89, wherein R8 is Rg.


98. The compound of any one of clauses 1-89 or 97, wherein R8 is selected from the group consisting of:

    • C3-8 cycloalkyl or C3-8 cycloalkenyl, each of which is optionally substituted with from 1-4 substituents independently selected from the group consisting of oxo, Rc, Rh, and -(Lg)bg-Rh; and
    • heterocyclyl or heterocycloalkenyl of 4-8 ring atoms, wherein from 1-3 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S(O)0-2, and wherein the heterocyclyl or heterocycloalkenyl is optionally substituted with from 1-4 substituents independently selected from the group consisting of oxo, Rc, Rh, and -(Lg)hg-Rh.


99. The compound of any one of clauses 1-89 or 97-98, wherein R8 is selected from the group consisting of.

    • C3-8 cycloalkyl which is optionally substituted with from 1-4 substituents independently selected from the group consisting of oxo and Rc; and
    • heterocyclyl of 4-8 ring atoms, wherein from 1-2 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S(O)0-2, and wherein the heterocyclyl is optionally substituted with from 1-4 substituents independently selected from the group consisting of oxo and Rc.


100. The compound of any one of clauses 1-89 or 97-99, wherein R8 is selected from the group consisting of.

    • C3-8 cycloalkyl substituted with from 1-2 (such as 2) independently selected halo (such as —F) and further optionally substituted with from 1-2 substituents independently selected from the group consisting of oxo and Rc; and
    • heterocyclyl of 4-8 ring atoms, wherein from 1-2 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S(O)0-2, and wherein the heterocyclyl is substituted with from 1-2 (such as 2) independently selected halo (such as —F) and further optionally substituted with from 1-2 substituents independently selected from the group consisting of oxo and Rc.


101. The compound of any one of clauses 1-89 or 97-100, wherein R8 is selected from the group consisting of piperidinyl, pyrrolidinyl, azetidinyl, azaspiro[3.3]heptanyl, cyclobutyl, cyclopentyl, and cyclohexyl, each of which is substituted with 2-F and further optionally substituted with from 1-2 Rc, such as




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102. The compound of any one of clauses 1-89 or 98-99, wherein R8 is selected from the group consisting of:

    • C3-8 cycloalkyl such as cyclopropyl, cyclohexyl, cyclobutyl, or cyclopentyl;
    • C3-8 cycloalkyl substituted with a substituent selected from the group consisting of: C1-4 alkoxy; C1-4 haloalkoxy; C1-4 alkoxy substituted with C1-4 alkoxy or C1-4 haloalkoxy; C1-4 haloalkyl; and C1-6 alkyl substituted from 1-6 independently selected halo, C1-4 alkoxy, or C1-4 haloalkoxy, wherein the cycloalkyl is further optionally substituted with from 1-2 Rc;
    • heterocyclyl of 4-8 ring atoms, wherein from 1-2 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S(O)0-2, such as:




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and

    • heterocyclyl of 4-8 ring atoms, wherein from 1-2 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S(O)0-2, and wherein the heterocyclyl is substituted with a substituent selected from the group consisting of: C1-4 alkoxy; C1-4 haloalkoxy; C1-4 alkoxy substituted with C1-4 alkoxy or C1-4 haloalkoxy; C1-4 haloalkyl; and C1-6 alkyl substituted from 1-6 independently selected halo, C1-4 alkoxy, or C1-4 haloalkoxy, wherein the heterocyclyl is further optionally substituted with from 1-2 Rc, such as




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103. The compound of any one of clauses 1-89, wherein R8 is selected from the group consisting of:

    • heteroaryl of 5-6 ring atoms, wherein from 1-3 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S(O)0-2, and wherein the heteroaryl is optionally substituted with from 1-4 Rc; and
    • C6-10 aryl, such as phenyl, optionally substituted with from 1-4 Rc.


104. The compound of any one of clauses 1-81, wherein a1 is 0; and R8 is selected from the group consisting of:

    • C3-8 cycloalkyl substituted with from 1-2 (such as 2) independently selected halo (such as —F) and further optionally substituted with from 1-2 substituents independently selected from the group consisting of oxo and Rc; and
    • heterocyclyl of 4-8 ring atoms, wherein from 1-2 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S(O)0-2, and wherein the heterocyclyl is substituted with from 1-2 (such as 2) independently selected halo (such as —F) and further optionally substituted with from 1-2 substituents independently selected from the group consisting of oxo and Rc.


105. The compound of clause 104, wherein R8 is selected from the group consisting of piperidinyl, pyrrolidinyl, azetidinyl, azaspiro[3.3]heptanyl, cyclobutyl, cyclopentyl, and cyclohexyl, each of which is substituted with 2-F and further optionally substituted with from 1-2 Rc, such as




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106. The compound of any one of clauses 1-81, wherein a1 is 0; and R8 is C1-10 alkyl substituted with 1-6 independently selected halo, such as C1, C2, C3, C4, C5, C6, or C7 alkyl substituted with from 1-6 independently selected halo.


107. The compound of clause 106, wherein R8 is C1-10 alkyl substituted with 1-6-F, such as C1, C2, C3, C4, C5, C6, or C7 alkyl substituted with from 1-6-F, such as




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108. The compound of any one of clauses 1-81, wherein a1 is 1; LA is —O— or —NH—; and R8 is C1-10 alkyl substituted with 1-6 independently selected halo, such as C1, C2, C3, C4, C5, C6, or C7 alkyl substituted with from 1-6 independently selected halo.


109. The compound of clause 108, wherein R8 is C1-10 alkyl substituted with 1-6-F, such as C1, C2, C3, C4, C5, C6, or C7 alkyl substituted with from 1-6-F, such as




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110. The compound of clauses 108 or 109, wherein LA is —O—.


111. The compound of any one of clauses 1-80, wherein a1 is 1; LA is —O—, —NH— or —CH2—; and R8 is selected from the group consisting of:

    • C3-8 cycloalkyl substituted with from 1-2 (such as 2) independently selected halo (such as —F) and further optionally substituted with from 1-2 substituents independently selected from the group consisting of oxo and Rc; and
    • heterocyclyl of 4-8 ring atoms, wherein from 1-2 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), 0, and S(O)0-2, and wherein the heterocyclyl is substituted with from 1-2 (such as 2) independently selected halo (such as —F) and further optionally substituted with from 1-2 substituents independently selected from the group consisting of oxo and Rc.


112. The compound of clause 111, wherein R8 is C3-8 cycloalkyl substituted with from 1-2 (such as 2) independently selected halo (such as —F) and further optionally substituted with from 1-2 substituents independently selected from the group consisting of oxo and Rc, such as cyclobutyl, cyclopentyl, and cyclohexyl, each of which is substituted with 2-F and further optionally substituted with from 1-2 Rc, such as




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113. The compound of clauses 111-112, wherein LA is —O—.


114. The compound of clause 1, wherein the compound is a compound of Formula (Ia-1-1):




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    • or a pharmaceutically acceptable salt thereof.





115. The compound of clause 114, wherein the




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moiety has the formula:




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wherein n7 is 0, 1, or 2; and each Rc7 is an independently selected Rc, such as:




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116. The compound of clause 114, wherein the




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moiety has the formula:




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wherein n7 is 0, 1, or 2; and each Rc7 is an independently selected Rc, such as:




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117. The compound of clause 114, wherein the




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moiety has the formula:




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wherein n7 is 0, 1, or 2; and each Rc7 is an independently selected Rc, such as:




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118. The compound of clause 1, wherein the compound is a compound of Formula (Ia-1-2):




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or a pharmaceutically acceptable salt thereof.


119. The compound of clause 118, wherein the




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moiety has formula:




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wherein n7 is 0, 1, or 2; and each Rc7 is an independently selected Rc, such as:




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120. The compound of clause 118, wherein the




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moiety has the formula:




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wherein n7 is 0, 1, or 2; and each Rc7 is an independently selected Rc, such as:




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121. The compound of any one of clauses 114-120, wherein R1a and R1d are H; and R1b and R1c are independently selected halo, such as —F or —Cl, such as —F; such as: wherein R1b and R1c are —F; or wherein R1b is —F, and R1c is —Cl; or wherein R1b is —Cl, and R1 is —F.


122. The compound of any one of clauses 114-120, wherein R1a and R1d are H; one of R1b and R1c is H; and the other one of R1b and R1c is halo, such as —F or —Cl, such as —F; such as: wherein R1b is H, and R1c is —F; or wherein R1b is H, and R1c is —Cl; or wherein R1b is —F, and R1c is H; or wherein R1b is —Cl, and R1c is H.


123. The compound of any one of clauses 114-120, wherein R1a and R1d are H; R1c is halo or H, such as —F, —Cl, or H; and R1b is selected from the group consisting of:


heteroaryl of 5 ring atoms, wherein from 1-3 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S, and wherein the heteroaryl is optionally substituted with from 1-4 Rc; and


heteroaryl of 5-6 (such as 5) ring atoms, wherein from 1-3 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S, and wherein the heteroaryl is substituted with one occurrence of Rh1 or -(Lg)b-Rh1 and further optionally substituted with from 1-2 Rc, wherein Rh1 is an independently selected Rh.


124. The compound of any one of clauses 114-123, wherein R2 is H; R5 is H; and R6 is H.


125. The compound of any one of clauses 114-124, wherein R7 is —R8; and R8 is selected from the group consisting of:

    • C3-8 cycloalkyl which is optionally substituted with from 1-4 substituents independently selected from the group consisting of oxo and Rc; and
    • heterocyclyl of 4-8 ring atoms, wherein from 1-2 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S(O)0-2, and wherein the heterocyclyl is optionally substituted with from 1-4 substituents independently selected from the group consisting of oxo and Rc.


126. The compound of any one of clauses 114-125, wherein R7 is —R8; and R8 is selected from the group consisting of:

    • C3-8 cycloalkyl substituted with from 1-2 independently selected halo (such as —F) and further optionally substituted with from 1-2 substituents independently selected from the group consisting of oxo and Rc; and
    • heterocyclyl of 4-8 ring atoms, wherein from 1-2 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S(O)0-2, and wherein the heterocyclyl is substituted with from 1-2 independently selected halo (such as —F) and further optionally substituted with from 1-2 substituents independently selected from the group consisting of oxo and Rc, such as:


wherein R8 is selected from the group consisting of piperidinyl, pyrrolidinyl, azetidinyl, azaspiro[3.3]heptanyl, cyclobutyl, cyclopentyl, and cyclohexyl, each of which is substituted with 2-F and further optionally substituted with from 1-2 Rc, such as




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127. The compound of any one of clauses 114-125, wherein R7 is —R8; and R8 is selected from the group consisting of:

    • C3-8 cycloalkyl such as cyclopropyl, cyclohexyl, cyclobutyl, or cyclopentyl;
    • C3-8 cycloalkyl substituted with a substituent selected from the group consisting of: C1-4 alkoxy; C1-4 haloalkoxy; C1-4 alkoxy substituted with C1-4 alkoxy or C1-4 haloalkoxy; C1-4 haloalkyl; and C1-6 alkyl substituted from 1-6 independently selected halo, C1-4 alkoxy, or C1-4 haloalkoxy, wherein the cycloalkyl is further optionally substituted with from 1-2 Rc;
    • heterocyclyl of 4-8 ring atoms, wherein from 1-2 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S(O)0-2, such as:




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and

    • heterocyclyl of 4-8 ring atoms, wherein from 1-2 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S(O)0-2, and wherein the heterocyclyl is substituted with a substituent selected from the group consisting of: C1-4 alkoxy; C1-4 haloalkoxy; C1-4 alkoxy substituted with C1-4 alkoxy or C1-4 haloalkoxy; C1-4 haloalkyl; and C1-6 alkyl substituted from 1-6 independently selected halo, C1-4 alkoxy, or C1-4 haloalkoxy, wherein the heterocyclyl is further optionally substituted with from 1-2 Rc, such as




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128. The compound of any one of clauses 114-125, wherein R7 is —R8; and R8 is selected from the group consisting of C1-10 alkyl substituted with 1-6 Ra1 (such as from 1-6 independently selected halo), such as C1, C2, C3, C4, C5, C6, or C7 alkyl substituted with from 1-6 Ra1 (such as from 1-6 independently selected halo), such as C1-10 alkyl substituted with 1-6-F, such as C1, C2, C3, C4, C5, C6, or C7 alkyl substituted with from 1-6-F, such as




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129. The compound of any one of clauses 114-125, wherein R7 is —OR8; and R8 is selected from the group consisting of C1-10 alkyl substituted with 1-6 Ra1 (such as from 1-6 independently selected halo), such as C1, C2, C3, C4, C5, C6, or C7 alkyl substituted with from 1-6 Ra1 (such as from 1-6 independently selected halo), such as C1-10 alkyl substituted with 1-6-F, such as C1, C2, C3, C4, C5, C6, or C7 alkyl substituted with from 1-6-F, such as




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130. The compound of any one of clauses 114-125, wherein R7 is —OR8; and R8 is C3-8 cycloalkyl substituted with from 1-2 (such as 2) independently selected halo (such as —F) and further optionally substituted with from 1-2 substituents independently selected from the group consisting of oxo and Rc, such as cyclobutyl, cyclopentyl, and cyclohexyl, each of which is substituted with 2-F and further optionally substituted with from 1-2 Rc, such as




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131. The compound of any one of clauses 114-130, wherein each occurrence of Rc7 is independently selected from the group consisting of halo; cyano; C1-3 alkyl; C1-4 alkoxy; C1-4 haloalkoxy; and C1-3 alkyl substituted with from 1-6 independently selected halo.


132. The compound of clause 131, wherein each occurrence of Rc7 is independently selected from the group consisting of halo, such as —F and —Cl; cyano; C1-3 alkyl, such as methyl; C1-4 alkoxy, such as methoxy; C1-4 haloalkoxy such as —OCF3; and C1-3 alkyl substituted with from 1-6-F, such as —CF3.


133. The compound of clause 1, wherein the compound is selected from the group consisting of the compounds delineated in Table C1, and a pharmaceutically acceptable salt thereof.


134. A pharmaceutical composition comprising a compound of clauses 1-133 and one or more pharmaceutically acceptable excipients.


135. A method for inhibiting STING activity, the method comprising contacting STING with a compound or a pharmaceutically acceptable salt thereof as defined in any one of clauses 1-133; or a pharmaceutical composition as defined in clause 134.


136. The method of clause 135, wherein the inhibiting comprises antagonizing STING.


137. The method of any one of clauses 135-136, which is carried out in vitro.


138. The method of clause 137, wherein the method comprises contacting a sample comprising one or more cells comprising STING with the compound.


139. The method of clause 137 or 138, wherein the one or more cells are one or more cancer cells.


140. The method of clause 138 or 139 wherein the sample further comprises one or more cancer cells, wherein the cancer is selected from the group consisting of melanoma, cervical cancer, breast cancer, ovarian cancer, prostate cancer, testicular cancer, urothelial carcinoma, bladder cancer, non-small cell lung cancer, small cell lung cancer, sarcoma, colorectal adenocarcinoma, gastrointestinal stromal tumors, gastroesophageal carcinoma, colorectal cancer, pancreatic cancer, kidney cancer, hepatocellular cancer, malignant mesothelioma, leukemia, lymphoma, myelodysplasia syndrome, multiple myeloma, transitional cell carcinoma, neuroblastoma, plasma cell neoplasms, Wilm's tumor, or hepatocellular carcinoma.


141. The method of clause 135 or 136, which is carried out in vivo.


142. The method of clause 141, wherein the method comprises administering the compound to a subject having a disease in which increased (e.g., excessive) STING signaling contributes to the pathology and/or symptoms and/or progression of the disease.


143. The method of clause 142, wherein the subject is a human.


144. The method of clause 143, wherein the disease is cancer.


145. The method of clause 144, wherein the cancer is selected from the group consisting of melanoma, cervical cancer, breast cancer, ovarian cancer, prostate cancer, testicular cancer, urothelial carcinoma, bladder cancer, non-small cell lung cancer, small cell lung cancer, sarcoma, colorectal adenocarcinoma, gastrointestinal stromal tumors, gastroesophageal carcinoma, colorectal cancer, pancreatic cancer, kidney cancer, hepatocellular cancer, malignant mesothelioma, leukemia, lymphoma, myelodysplasia syndrome, multiple myeloma, transitional cell carcinoma, neuroblastoma, plasma cell neoplasms, Wilm's tumor, or hepatocellular carcinoma.


146. The method of clause 144 or 145, wherein the cancer is a refractory cancer.


147. The method of clause 142, wherein the compound is administered in combination with one or more additional cancer therapies.


148. The method of clause 147, wherein the one or more additional cancer therapies comprises surgery, radiotherapy, chemotherapy, toxin therapy, immunotherapy, cryotherapy or gene therapy, or a combination thereof.


149. The method of clause 148, wherein chemotherapy comprises administering one or more additional chemotherapeutic agents.


150. The method of clause 149, wherein the one or more additional chemotherapeutic agents is selected from an alkylating agent (e.g., cisplatin, carboplatin, mechlorethamine, cyclophosphamide, chlorambucil, ifosfamide and/or oxaliplatin); an anti-metabolite (e.g., azathioprine and/or mercaptopurine); a terpenoid (e.g., a vinca alkaloid and/or a taxane; e.g., Vincristine, Vinblastine, Vinorelbine and/or Vindesine Taxol, Pacllitaxel and/or Docetaxel); a topoisomerase (e.g., a type I topoisomerase and/or a type 2 topoisomerase; e.g., camptothecins, such as irinotecan and/or topotecan; amsacrine, etoposide, etoposide phosphate and/or teniposide); a cytotoxic antibiotic (e.g., actinomycin, anthracyclines, doxorubicin, daunorubicin, valrubicin, idarubicin, epirubicin, bleomycin, plicamycin and/or mitomycin); a hormone (e.g., a lutenizing hormone releasing hormone agonist; e.g., leuprolidine, goserelin, triptorelin, histrelin, bicalutamide, flutamide and/or nilutamide); an antibody (e.g., Abciximab, Adalimumab, Alemtuzumab, Atlizumab, Basiliximab, Belimumab, Bevacizumab, Bretuximab vedotin, Canakinumab, Cetuximab, Ceertolizumab pegol, Daclizumab, Denosumab, Eculizumab, Efalizumab, Gemtuzumab, Golimumab, Golimumab, Ibritumomab tiuxetan, Infliximab, Ipilimumab, Muromonab-CD3, Natalizumab, Ofatumumab, Omalizumab, Palivizumab, Panitumuab, Ranibizumab, Rituximab, Tocilizumab, Tositumomab and/or Trastuzumab); an anti-angiogenic agent; a cytokine; a thrombotic agent; a growth inhibitory agent; an anti-helminthic agent; and an immune checkpoint inhibitor that targets an immune checkpoint receptor selected from the group consisting of CTLA-4, PD-1, PD-L1, PD-1-PD-L1, PD-1-PD-L2, interleukin-2 (IL-2), indoleamine 2,3-dioxygenase (IDO), IL-10, transforming growth factor-β (TGFβ), T cell immunoglobulin and mucin 3 (TIM3 or HAVCR2), Galectin 9-TIM3, Phosphatidylserine-TIM3, lymphocyte activation gene 3 protein (LAG3), MHC class II-LAG3, 4-1BB-4-1BB ligand, OX40-OX40 ligand, GITR, GITR ligand-GITR, CD27, CD70-CD27, TNFRSF25, TNFRSF25-TL1A, CD40L, CD40-CD40 ligand, HVEM-LIGHT-LTA, HVEM, HVEM-BTLA, HVEM-CD160, HVEM LIGHT, HVEM-BTLA-CD160, CD80, CD80-PDL-1, PDL2-CD80, CD244, CD48 CD244, CD244, ICOS, ICOS-ICOS ligand, B7-H3, B7-H4, VISTA, TMIGD2, HHLA2-TMIGD2, Butyrophilins, including BTNL2, Siglec family, TIGIT and PVR family members, KIRs, ILTs and LIRs, NKG2D and NKG2A, MICA and MICB, CD244, CD28, CD86-CD28, CD86-CTLA, CD80-CD28, CD39, CD73 Adenosine-CD39-CD73, CXCR4-CXCL12, Phosphatidylserine, TIM3, Phosphatidylserine-TIM3, SIRPA-CD47, VEGF, Neuropilin, CD160, CD30, and CD155 (e.g., CTLA-4 or PD1 or PD-L1).


151. The method of any one of clauses 142-150, wherein the compound is administered intratumorally.


152. A method of treating cancer, comprising administering to a subject in need of such treatment an effective amount of a compound as defined in any one of clauses 1-133, or a pharmaceutical composition as defined in clause 134.


153. The method of clause 152, wherein the cancer is selected from the group consisting of melanoma, cervical cancer, breast cancer, ovarian cancer, prostate cancer, testicular cancer, urothelial carcinoma, bladder cancer, non-small cell lung cancer, small cell lung cancer, sarcoma, colorectal adenocarcinoma, gastrointestinal stromal tumors, gastroesophageal carcinoma, colorectal cancer, pancreatic cancer, kidney cancer, hepatocellular cancer, malignant mesothelioma, leukemia, lymphoma, myelodysplasia syndrome, multiple myeloma, transitional cell carcinoma, neuroblastoma, plasma cell neoplasms, Wilm's tumor, or hepatocellular carcinoma.


154. The method of clause 152 or 153, wherein the cancer is a refractory cancer.


155. The method of clause 152, wherein the compound is administered in combination with one or more additional cancer therapies.


156. The method of clause 155, wherein the one or more additional cancer therapies comprises surgery, radiotherapy, chemotherapy, toxin therapy, immunotherapy, cryotherapy or gene therapy, or a combination thereof.


157. The method of clause 156, wherein chemotherapy comprises administering one or more additional chemotherapeutic agents.


158. The method of clause 157, wherein the one or more additional chemotherapeutic agents is selected from an alkylating agent (e.g., cisplatin, carboplatin, mechlorethamine, cyclophosphamide, chlorambucil, ifosfamide and/or oxaliplatin); an anti-metabolite (e.g., azathioprine and/or mercaptopurine); a terpenoid (e.g., a vinca alkaloid and/or a taxane; e.g., Vincristine, Vinblastine, Vinorelbine and/or Vindesine Taxol, Pacllitaxel and/or Docetaxel); a topoisomerase (e.g., a type I topoisomerase and/or a type 2 topoisomerase; e.g., camptothecins, such as irinotecan and/or topotecan; amsacrine, etoposide, etoposide phosphate and/or teniposide); a cytotoxic antibiotic (e.g., actinomycin, anthracyclines, doxorubicin, daunorubicin, valrubicin, idarubicin, epirubicin, bleomycin, plicamycin and/or mitomycin); a hormone (e.g., a lutenizing hormone releasing hormone agonist; e.g., leuprolidine, goserelin, triptorelin, histrelin, bicalutamide, flutamide and/or nilutamide); an antibody (e.g., Abciximab, Adalimumab, Alemtuzumab, Atlizumab, Basiliximab, Belimumab, Bevacizumab, Bretuximab vedotin, Canakinumab, Cetuximab, Ceertolizumab pegol, Daclizumab, Denosumab, Eculizumab, Efalizumab, Gemtuzumab, Golimumab, Golimumab, Ibritumomab tiuxetan, Infliximab, Ipilimumab, Muromonab-CD3, Natalizumab, Ofatumumab, Omalizumab, Palivizumab, Panitumuab, Ranibizumab, Rituximab, Tocilizumab, Tositumomab and/or Trastuzumab); an anti-angiogenic agent; a cytokine; a thrombotic agent; a growth inhibitory agent; an anti-helminthic agent; and an immune checkpoint inhibitor that targets an immune checkpoint receptor selected from the group consisting of CTLA-4, PD-1, PD-L1, PD-1-PD-L1, PD-1-PD-L2, interleukin-2 (IL-2), indoleamine 2,3-dioxygenase (IDO), IL-10, transforming growth factor-β (TGFβ), T cell immunoglobulin and mucin 3 (TIM3 or HAVCR2), Galectin 9-TIM3, Phosphatidylserine-TIM3, lymphocyte activation gene 3 protein (LAG3), MHC class II-LAG3, 4-1BB-4-1BB ligand, OX40-OX40 ligand, GITR, GITR ligand-GITR, CD27, CD70-CD27, TNFRSF25, TNFRSF25-TL1A, CD40L, CD40-CD40 ligand, HVEM-LIGHT-LTA, HVEM, HVEM-BTLA, HVEM-CD160, HVEM-LIGHT, HVEM-BTLA-CD160, CD80, CD80-PDL-1, PDL2-CD80, CD244, CD48-CD244, CD244, ICOS, ICOS-ICOS ligand, B7-H3, B7-H4, VISTA, TMIGD2, HHLA2-TMIGD2, Butyrophilins, including BTNL2, Siglec family, TIGIT and PVR family members, KIRs, ILTs and LIRs, NKG2D and NKG2A, MICA and MICB, CD244, CD28, CD86-CD28, CD86-CTLA, CD80-CD28, CD39, CD73 Adenosine-CD39-CD73, CXCR4-CXCL12, Phosphatidylserine, TIM3, Phosphatidylserine-TIM3, SIRPA-CD47, VEGF, Neuropilin, CD160, CD30, and CD155 (e.g., CTLA-4 or PD1 or PD-L1).


159. The method of any one of clauses 152-158, wherein the compound is administered intratumorally.


160. A method of inducing an immune response in a subject in need thereof, the method comprising administering to the subject an effective amount of a compound as defined in any one of clauses 1-133, or a pharmaceutical composition as defined in clause 134.


161. The method of clause 160, wherein the subject has cancer.


162. The method of clause 161, wherein the subject has undergone and/or is undergoing and/or will undergo one or more cancer therapies.


163. The method of clause 161, wherein the cancer selected from the group consisting of melanoma, cervical cancer, breast cancer, ovarian cancer, prostate cancer, testicular cancer, urothelial carcinoma, bladder cancer, non-small cell lung cancer, small cell lung cancer, sarcoma, colorectal adenocarcinoma, gastrointestinal stromal tumors, gastroesophageal carcinoma, colorectal cancer, pancreatic cancer, kidney cancer, hepatocellular cancer, malignant mesothelioma, leukemia, lymphoma, myelodysplasia syndrome, multiple myeloma, transitional cell carcinoma, neuroblastoma, plasma cell neoplasms, Wilm's tumor, or hepatocellular carcinoma.


164. The method of clause any one of clauses 161-163, wherein the cancer is a refractory cancer.


165. The method of clause 160, wherein the immune response is an innate immune response.


166. The method of clause 165, wherein the at least one or more cancer therapies comprises surgery, radiotherapy, chemotherapy, toxin therapy, immunotherapy, cryotherapy or gene therapy, or a combination thereof.


167. The method of clause 166, wherein chemotherapy comprises administering one or more additional chemotherapeutic agents.


168. The method of clause 167, wherein the one or more additional chemotherapeutic agents is selected from alkylating agent (e.g., cisplatin, carboplatin, mechlorethamine, cyclophosphamide, chlorambucil, ifosfamide and/or oxaliplatin); an anti-metabolite (e.g., azathioprine and/or mercaptopurine); a terpenoid (e.g., a vinca alkaloid and/or a taxane; e.g., Vincristine, Vinblastine, Vinorelbine and/or Vindesine Taxol, Pacllitaxel and/or Docetaxel); a topoisomerase (e.g., a type I topoisomerase and/or a type 2 topoisomerase; e.g., camptothecins, such as irinotecan and/or topotecan; amsacrine, etoposide, etoposide phosphate and/or teniposide); a cytotoxic antibiotic (e.g., actinomycin, anthracyclines, doxorubicin, daunorubicin, valrubicin, idarubicin, epirubicin, bleomycin, plicamycin and/or mitomycin); a hormone (e.g., a lutenizing hormone releasing hormone agonist; e.g., leuprolidine, goserelin, triptorelin, histrelin, bicalutamide, flutamide and/or nilutamide); an antibody (e.g., Abciximab, Adalimumab, Alemtuzumab, Atlizumab, Basiliximab, Belimumab, Bevacizumab, Bretuximab vedotin, Canakinumab, Cetuximab, Ceertolizumab pegol, Daclizumab, Denosumab, Eculizumab, Efalizumab, Gemtuzumab, Golimumab, Golimumab, Ibritumomab tiuxetan, Infliximab, Ipilimumab, Muromonab-CD3, Natalizumab, Ofatumumab, Omalizumab, Palivizumab, Panitumuab, Ranibizumab, Rituximab, Tocilizumab, Tositumomab and/or Trastuzumab); an anti-angiogenic agent; a cytokine; a thrombotic agent; a growth inhibitory agent; an anti-helminthic agent; and an immune checkpoint inhibitor that targets an immune checkpoint receptor selected from the group consisting of CTLA-4, PD-1, PD-L1, PD-1-PD-L1, PD-1-PD-L2, interleukin-2 (IL-2), indoleamine 2,3-dioxygenase (IDO), IL-10, transforming growth factor-β (TGFβ), T cell immunoglobulin and mucin 3 (TIM3 or HAVCR2), Galectin 9-TIM3, Phosphatidylserine-TIM3, lymphocyte activation gene 3 protein (LAG3), MHC class II-LAG3, 4-1BB-4-1BB ligand, OX40-OX40 ligand, GITR, GITR ligand-GITR, CD27, CD70-CD27, TNFRSF25, TNFRSF25-TL1A, CD40L, CD40-CD40 ligand, HVEM-LIGHT-LTA, HVEM, HVEM-BTLA, HVEM-CD160, HVEM -LIGHT, HVEM-BTLA-CD160, CD80, CD80-PDL-1, PDL2-CD80, CD244, CD48-CD244, CD244, ICOS, ICOS-ICOS ligand, B7-H3, B7-H4, VISTA, TMIGD2, HHLA2-TMIGD2, Butyrophilins, including BTNL2, Siglec family, TIGIT and PVR family members, KIRs, ILTs and LIRs, NKG2D and NKG2A, MICA and MICB, CD244, CD28, CD86-CD28, CD86-CTLA, CD80-CD28, CD39, CD73 Adenosine-CD39-CD73, CXCR4-CXCL12, Phosphatidylserine, TIM3, Phosphatidylserine-TIM3, SIRPA-CD47, VEGF, Neuropilin, CD160, CD30, and CD155 (e.g., CTLA-4 or PD1 or PD-L1).


169. A method of treatment of a disease in which increased (e.g., excessive) STING signaling contributes to the pathology and/or symptoms and/or progression of the disease, comprising administering to a subject in need of such treatment an effective amount of a compound as defined in any one of clauses 1-133, or a pharmaceutical composition as defined in clause 134.


170. A method of treatment comprising administering to a subject having a disease in which increased (e.g., excessive) STING signaling contributes to the pathology and/or symptoms and/or progression of the disease an effective amount of a compound as defined in any one of clauses 1-133, or a pharmaceutical composition as defined in clause 134.


171. A method of treatment comprising administering to a subject a compound as defined in any one of clauses 1-133, or a pharmaceutical composition as defined in clause 134, wherein the compound or composition is administered in an amount effective to treat a disease in which increased (e.g., excessive) STING signaling contributes to the pathology and/or symptoms and/or progression of the disease, thereby treating the disease.


172. The method of any one of clauses 169-171, wherein the disease is cancer.


173. The method of clause 172, wherein the cancer is selected from the group consisting of melanoma, cervical cancer, breast cancer, ovarian cancer, prostate cancer, testicular cancer, urothelial carcinoma, bladder cancer, non-small cell lung cancer, small cell lung cancer, sarcoma, colorectal adenocarcinoma, gastrointestinal stromal tumors, gastroesophageal carcinoma, colorectal cancer, pancreatic cancer, kidney cancer, hepatocellular cancer, malignant mesothelioma, leukemia, lymphoma, myelodysplasia syndrome, multiple myeloma, transitional cell carcinoma, neuroblastoma, plasma cell neoplasms, Wilm's tumor, or hepatocellular carcinoma.


174. The method of clause 172 or 173, wherein the cancer is a refractory cancer.


175. The method of any one of clauses 172-174, wherein the compound is administered in combination with one or more additional cancer therapies.


176. The method of clause 175, wherein the one or more additional cancer therapies comprises surgery, radiotherapy, chemotherapy, toxin therapy, immunotherapy, cryotherapy or gene therapy, or a combination thereof.


177. The method of clause 176, wherein chemotherapy comprises administering one or more additional chemotherapeutic agents.


178. The method of clause 177, wherein the one or more additional chemotherapeutic agents is selected from an alkylating agent (e.g., cisplatin, carboplatin, mechlorethamine, cyclophosphamide, chlorambucil, ifosfamide and/or oxaliplatin); an anti-metabolite (e.g., azathioprine and/or mercaptopurine); a terpenoid (e.g., a vinca alkaloid and/or a taxane; e.g., Vincristine, Vinblastine, Vinorelbine and/or Vindesine Taxol, Pacllitaxel and/or Docetaxel); a topoisomerase (e.g., a type I topoisomerase and/or a type 2 topoisomerase; e.g., camptothecins, such as irinotecan and/or topotecan; amsacrine, etoposide, etoposide phosphate and/or teniposide); a cytotoxic antibiotic (e.g., actinomycin, anthracyclines, doxorubicin, daunorubicin, valrubicin, idarubicin, epirubicin, bleomycin, plicamycin and/or mitomycin); a hormone (e.g., a lutenizing hormone releasing hormone agonist; e.g., leuprolidine, goserelin, triptorelin, histrelin, bicalutamide, flutamide and/or nilutamide); an antibody (e.g., Abciximab, Adalimumab, Alemtuzumab, Atlizumab, Basiliximab, Belimumab, Bevacizumab, Bretuximab vedotin, Canakinumab, Cetuximab, Ceertolizumab pegol, Daclizumab, Denosumab, Eculizumab, Efalizumab, Gemtuzumab, Golimumab, Golimumab, Ibritumomab tiuxetan, Infliximab, Ipilimumab, Muromonab-CD3, Natalizumab, Ofatumumab, Omalizumab, Palivizumab, Panitumuab, Ranibizumab, Rituximab, Tocilizumab, Tositumomab and/or Trastuzumab); an anti-angiogenic agent; a cytokine; a thrombotic agent; a growth inhibitory agent; an anti-helminthic agent; and an immune checkpoint inhibitor that targets an immune checkpoint receptor selected from the group consisting of CTLA-4, PD-1, PD-L1, PD-1-PD-L1, PD-1-PD-L2, interleukin-2 (IL-2), indoleamine 2,3-dioxygenase (IDO), IL-10, transforming growth factor-β (TGFβ), T cell immunoglobulin and mucin 3 (TIM3 or HAVCR2), Galectin 9-TIM3, Phosphatidylserine-TIM3, lymphocyte activation gene 3 protein (LAG3), MHC class II-LAG3, 4-1BB-4-1BB ligand, OX40-OX40 ligand, GITR, GITR ligand-GITR, CD27, CD70-CD27, TNFRSF25, TNFRSF25-TL1A, CD40L, CD40-CD40 ligand, HVEM-LIGHT-LTA, HVEM, HVEM-BTLA, HVEM-CD160, HVEM -LIGHT, HVEM-BTLA-CD160, CD80, CD80-PDL-1, PDL2-CD80, CD244, CD48-CD244, CD244, ICOS, ICOS-ICOS ligand, B7-H3, B7-H4, VISTA, TMIGD2, HHLA2-TMIGD2, Butyrophilins, including BTNL2, Siglec family, TIGIT and PVR family members, KIRs, ILTs and LIRs, NKG2D and NKG2A, MICA and MICB, CD244, CD28, CD86-CD28, CD86-CTLA, CD80-CD28, CD39, CD73 Adenosine-CD39-CD73, CXCR4-CXCL12, Phosphatidylserine, TIM3, Phosphatidylserine-TIM3, SIRPA-CD47, VEGF, Neuropilin, CD160, CD30, and CD155 (e.g., CTLA-4 or PD1 or PD-L1).


179. The method of any one of clauses 169-178, wherein the compound is administered intratumorally.


180. A method of treatment of a disease, disorder, or condition associated with STING, comprising administering to a subject in need of such treatment an effective amount of a compound as defined in any one of clauses 1-133, or a pharmaceutical composition as defined in clause 134.


181. The method of clause 180, wherein the disease, disorder, or condition is selected from type I interferonopathies, Aicardi-Goutières Syndrome (AGS), genetic forms of lupus, inflammation-associated disorders, and rheumatoid arthritis.


182. The method of clause 181, wherein the disease, disorder, or condition is a type I interferonopathy (e.g., STING-associated vasculopathy with onset in infancy (SAVI)).


183. The method of clause 182, wherein the type I interferonopathy is STING-associated vasculopathy with onset in infancy (SAVI)).


184. The method of clause 181, wherein the disease, disorder, or condition is Aicardi-Goutières Syndrome (AGS).


185. The method of clause 181, wherein the disease, disorder, or condition is a genetic form of lupus.


186. The method of clause 181, wherein the disease, disorder, or condition is inflammation-associated disorder.


187. The method of clause 186, wherein the inflammation-associated disorder is systemic lupus erythematosus.


188. The method of any one of clauses 135-187, wherein the method further comprises identifying the subject.


189. A combination comprising a compounds defined in any one of clauses 1 to 133 or a pharmaceutically acceptable salt or tautomer thereof, and one or more therapeutically active agents.


190. A compound defined in any one of clauses 1 to 133 or a pharmaceutically acceptable salt or tautomer thereof, or a pharmaceutical composition defined in clause 134, for use as a medicament.


191. A compound defined in any one of clauses 1 to 133 or a pharmaceutically acceptable salt or tautomer thereof, or a pharmaceutical composition defined in clause 134, for use in the treatment of a disease, condition or disorder modulated by STING inhibition.


192. A compound defined in any one of clauses 1 to 133 or a pharmaceutically acceptable salt or tautomer thereof, or the pharmaceutical composition defined in clause 134, for use in the treatment of a disease mentioned in any one of clauses 135 to 188.


193. Use of a compound defined in any one of clauses 1 to 133 or a pharmaceutically acceptable salt or tautomer thereof, or a pharmaceutical composition defined in clause 134, in the manufacture of a medicament for the treatment of a disease mentioned in in any one of clauses 135 to 188.

Claims
  • 1. A compound of Formula (I):
  • 2. A compound of Formula (II):
  • 3. A compound of Formula (III)
  • 4. The compound of claim 1, wherein the compound is a compound of Formula (Ia):
  • 5. The compound of claim 1, wherein one of Z, Y1, and Y2 is N; and each remaining of Z, Y1, Y2, and Y3 is an independently selected CR1.
  • 6. The compound of any one of claims 1-5, wherein X1 is NR2; and X2 is CR5, optionally wherein X1 is NH; and X2 is CH.
  • 7. The compound of any one of claims 1-6, wherein 1-2 R1 is independently selected from the group consisting of: Rc1 and Rg1; and each remaining R1 is H, wherein Rc1 is an independently selected Rc; and Rg1 is an independently selected Rg.
  • 8. The compound of claim 7, wherein each R1 is independently selected from the group consisting of: halo, cyano, C1-3 alkyl, C1-3 alkoxy, C1-3 haloalkoxy, and C1-3 alkyl substituted with 1-6 independently selected halo, such as wherein each Rc1 is independently —F, —Cl, or —CN, such as wherein each R1 is independently —F or —Cl, such as —F; and each Rg1 is independently heteroaryl of 5 ring atoms, wherein 1-3 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S, and wherein the heteroaryl is optionally substituted with 1-4 Rc.
  • 9. The compound of claim 4, wherein R1a and R1d are H; and R1b and R1c are independently selected halo, such as —F or —Cl, such as —F; such as: wherein R1b and R1c are —F; or wherein R1b is —F, and R1c is —Cl; or wherein R1b is —Cl, and R1c is —F; or wherein R1a and R1d are H; one of R1b and R1c is H; and the other one of R1b and R1c is halo, such as —F or —Cl, such as —F; such as: wherein R1b is H, and R1c is —F; or wherein R1b is H, and R1c is —Cl; or wherein R1b is —F, and R1c is H; or wherein R1b is —Cl, and R1c is H; orwherein R1a and R1d are H; R1c is halo or H, such as —F, —Cl, or H; and R1b is heteroaryl of 5 ring atoms, wherein 1-3 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S, and wherein the heteroaryl is optionally substituted with 1-4 Rc; orwherein R1a and R1d are H; R1c is halo or H, such as —F, —Cl, or H; and R1b is heteroaryl of 5-6, such as 5, ring atoms, wherein 1-3 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S, and wherein the heteroaryl is substituted with one occurrence of Rh or -(Lg)bg-Rh, such as Rh or —CH2-Rh, and further optionally substituted with 1-2 Rc.
  • 10. The compound of any one of claims 1-9, wherein P1 and P5 are independently CH or CRc; and P2, P3, and P4 are independently CH, CRc, or CR7, such as: wherein one of P2, P3, and P4 is CR7; such as: wherein P3 is CR7, such as: wherein the
  • 11. The compound of any one of claims 1-9, wherein one or two, such as one, of P1, P2, P3, P4, and P5 is N; such as: wherein P3 is CR7; P4 is N; and P1, P2, and P5 are independently CH or CRc, such as wherein the
  • 12. The compound of any one of claims 1-11, wherein a1 is 0; or wherein a1 is 1, and optionally LA is —O—, —NH—, or —CH2—, such as wherein LA is —O—; orwherein a1 is 2; and -(LA)a1- is -LA1-LA2, wherein LA1 and LA2 are independently selected LA; and LA2 is the point of attachment to R8, optionally LA1 is —O—, and LA2 is C1-3 alkylene optionally substituted with 1-2 Ra1; orwherein a1 is 3; and -(LA)a1- is -LA1-LA2-LA3, wherein LA1, LA2, and LA3 are independently selected LA; and LA3 is the point of attachment to R8, optionally LA1 and LA3 are each independently C1-3 alkylene optionally substituted with 1-2 Ra1, and LA2 is NRNC(O)O or OC(O)NRN.
  • 13. The compound of any one of claims 1-12, wherein R8 is C1-10 alkyl optionally substituted with 1-4 Ra1, such as wherein R8 is C1-10 alkyl, such as C2, C3, C4, C5, C6, or C7 alkyl, substituted with 1-6 independently selected halo, such as F; or wherein R8 is Rg, such as:wherein R8 is selected from the group consisting of: C3-8 cycloalkyl or C3-8 cycloalkenyl, each of which is optionally substituted with 1-4 substituents independently selected from the group consisting of oxo, Rc, Rh, and -(Lg)bg-Rh; andheterocyclyl or heterocycloalkenyl of 4-8 ring atoms, wherein 1-3 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S(O)0-2, and wherein the heterocyclyl or heterocycloalkenyl is optionally substituted with 1-4 substituents independently selected from the group consisting of oxo, Rc, Rh, and -(Lg)bg-Rh, such as:wherein R8 is selected from the group consisting of: C3-8 cycloalkyl which is optionally substituted with 1-4 substituents independently selected from the group consisting of oxo and Rc; andheterocyclyl of 4-8 ring atoms, wherein 1-2 ring atoms are heteroatoms, each independently selected from the group consisting of N, N(H), N(Rd), O, and S(O)0-2, and wherein the heterocyclyl is optionally substituted with 1-4 substituents independently selected from the group consisting of oxo and Rc.
  • 14. The compound of claim 1, wherein the compound is a compound of Formula (Ia-1-1):
  • 15. The compound of claim 1, wherein the compound is selected from the group consisting of the compounds delineated in Table C1, and a pharmaceutically acceptable salt thereof.
  • 16. A pharmaceutical composition comprising a compound of claims 1-15 and one or more pharmaceutically acceptable excipients.
  • 17. A method for inhibiting STING activity, the method comprising contacting STING with a compound as claimed in any one of claims 1-15, or a pharmaceutically acceptable salt thereof; or a pharmaceutical composition as claimed in claim 16.
  • 18. A method of inducing an immune response in a subject in need thereof, the method comprising administering to the subject an effective amount of a compound as claimed in any one of claims 1-15, or a pharmaceutically acceptable salt thereof, or a pharmaceutical composition as claimed in claim 16.
  • 19. A method of treatment of disease, disorder, or condition associated with STING, such as a disease, disorder, or condition, in which increased STING signaling, such as excessive STING signaling, contributes to the pathology and/or symptoms and/or progression of the disease, such as cancer, comprising administering to a subject in need of such treatment an effective amount of a compound as claimed in any one of claims 1-15, or a pharmaceutically acceptable salt thereof, or a pharmaceutical composition as claimed in claim 16.
CROSS REFERENCE TO RELATED APPLICATION

This application claims the benefit of U.S. Provisional Application Ser. No. 63/052,086, filed on Jul. 15, 2020 which is incorporated herein by reference in its entirety.

PCT Information
Filing Document Filing Date Country Kind
PCT/US2021/041820 7/15/2021 WO
Provisional Applications (1)
Number Date Country
63052086 Jul 2020 US