Patent Application
20160376280
The present invention is directed to substituted 7-azabicyclic compounds, pharmaceutical compositions comprising them, methods of making them, and methods of using them for the modulation of the orexin receptor for the treatment of disease states, disorders, and conditions mediated by orexin receptor activity.
Orexin/hypocretin signaling is mediated by two receptors and two peptide agonists. The peptides (orexin-A and orexin-B) are cleavage products of the same gene, pre-pro orexin. In the central nervous system, neurons producing pre-pro orexin are found solely in the perifornical nucleus, the dorsal hypothalamus, and the lateral hypothalamus (Peyron et al., 1998, J. Neurosci. 18: 9996-10015). Orexigenic cells in these regions project to many areas of the brain, extending rostrally to the olfactory bulbs and caudally to the spinal cord (Van den Pol, 1999, J. Neurosci. 19: 3171-3182).
The orexins bind to two high affinity receptors, referred to as orexin-1 and orexin-2 receptors. Orexin-1 and orexin-2 receptors are G-protein-coupled, seven transmembrane receptors that share over 64% amino acid sequence identity with one another. Both receptors are generally excitatory, the common cellular response to orexin-induced receptor activation being increases in intracellular calcium. Homology between the species orthologs is high and there are no known pharmacological differences. Orexin-A and -B are usually considered equal ligands for orexin-2 receptor but orexin-B is thought to be 5- to 100-fold weaker ligand than orexin-A at the orexin-1 receptor (Sakurai et al., 1998, Cell 92: 573-585; Ammoun et al., 2003, J. Pharmacol. Exp. Ther. 305: 507-514).
Many regions of the brain have fairly selective expression of the orexin-1 or orexin-2 receptors (Marcus et al., 2001, 1 Comp Neurology 435, 6-25; Trivedi et al., 1998, FEBS Letters, 438, 71-75). Orexin-1 receptors are selective for the limbic system (bed nucleus of the stria terminalis and amygdala), cingulate cortex and noradrenergic neurons in the locus coeruleus. Conversely, the orexin-2 receptor is almost the exclusive orexin receptor in the histaminergic neurons in the tuberomammilary nucleus which play a critical role in wake promotion; in paraventricular neurons and the parabrachial nucleus. In other brain regions like the dorsal raphe, the ventral tegmental area or the prefontal cortex both receptors are coexpressed.
The broad CNS distribution of cells producing orexin, as well as cells expressing the orexin receptors, suggests involvement of orexin in a number of physiological functions, including feeding and metabolism, regulation of wakefulness and sleep, sympathetic activation and stress response (de Lecea, 2012, Progress in Brain Research, 198, 15-24; Kukkonen, 2013, Am J. Physiol. Cell Physiol., 304, C2-C32). Orexin also plays a key role regulating motivation and reward associated with food intake and with drugs of abuse (Mahler et al., 2012, Progress in Brain Research, 198, 79-121).
Several lines of evidence indicate that the orexin system is an important modulator of arousal. Rodents administered orexin intracerebroventricularly spend more time awake (Piper et al., 2000, J. Neurosci. 12: 726-730. Orexin-mediated effects on arousal have been linked to orexin neuronal projections to histaminergic neurons in the tuberomammillary nucleus (Yamanaka et al., 2002, Biochem. Biophys. Res. Comm. 290: 1237-1245). Rodents whose pre-pro orexin gene has been knocked out, or whose orexigenic neurons have been killed, display altered sleep/wake cycles similar to narcolepsy (Chemelli et al., 1999, Cell 98: 437-451; Hara et al., 2001, Neuron 30: 345-354). Dog models of narcolepsy have been shown to have mutant or non-functional orexin-2 receptors (Lin et al., 1999, Cell 98: 365-376). Orexin signaling as a target for sleep-promoting therapies was further validated clinically by findings of attenuated orexin levels and loss of orexinergic neurons in human narcoleptic patients (Mignot et al., 2001, Am. J. Hum. Genet. 68: 686-699; Minot & Thorsby, 2001, New England J. Med. 344: 692) or, in rare cases, to mutations in the orexin-2 gene (Peyron et al., 2000, Nature Med. 6: 991-997). Disorders of the sleep-wake cycle are therefore likely targets for orexin-2 receptor modulator activity. Examples of sleep-wake disorders that may be treated by agonists or other modulators that up-regulate orexin-2 receptor-mediated processes include narcolepsy, jet lag (sleepiness) and sleep disorders secondary to neurological disorders such as depression. Examples of disorders that may be treated by antagonists or other modulators that down-regulate orexin-2 receptor-mediated processes include insomnia, restless leg syndrome, jet lag (wakefulness) and sleep disorders secondary to neurological disorders such as mania, schizophrenia, pain syndromes and the like.
Evidence has accumulated to demonstrate a clear involvement of orexin signaling in reward pathways associated with drug dependence (Mahler et al., 2012, Progress in Brain Research, 198, 79-121). Orexinergic neurons send projections to the ventral tegmental area and other brain regions involved in reward processing. Orexin ligands mediate reward behavior, and antagonizing these effects with a selective orexin-1 receptor antagonist in various preclinical model of addiction has suggested that these actions are mediated through orexin-1 receptor. Specifically, a selective orexin-1 antagonist attenuates morphine conditioned place preference and reinstatement (Harris et al., 2005, Nature, 437, 556-5599; Narita et al., 2006, J Neurosci., 26, 398-405; Harris et al., 2007, Behav Brain Res, 183, 43-51), stress-induced cocaine reinstatement, cocaine-induced behavioral and synaptic plasticity (Borgland et al., 2006, Neuron, 49, 589-601), and intake and cue and stress-induced reinstatement of ethanol (Lawrence et al., 2006, Br J Pharmacol, 148, 752-759), in addition to attenuating precipitated morphine withdrawal (Sharf et al., 2008, Biol Psychiatry, 64, 175-183) and nicotine self-administration (Hollander et al., 2008, Proc Natl Acad Sci USA., 105, 19480-19485). Another recent study has also suggested a role for OX2R (Shoblock et al., 2011, Psychopharmacology, 215, 191-203).
Orexin's role in more complex emotional behavior is also emerging (Johnson et al., 2012, Progress in Brain Research, 198, 133-161). Changes in orexin levels in patients with panic and posttraumatic stress disorders have been noted as have changes in the prevalence of anxiety behaviors in narcoleptic patients (Johnson et al., 2010, Nature Medicine, 16, 111-115; Fortuyn et al., 2010, General Hospital Psychiatry, 32, 49-56; Strawn et al., 2010, Psychoneuroendocrinology, 35, 1001-1007). Lactate infusion or acute hypercapnia, which causes panic in humans, and are used as an animal model of panic, activates orexin neurons in the perifornical hypothalamus. This activation correlates with anxiety in the social interaction test or open field test. Blocking orexin signaling with either siRNA or selective orexin-1 receptor antagonists attenuates panic-like responses to lactate (Johnson et al., 2010, Nature Medicine, 16, 111-115; Johnson et al., 2012, Neuropsychopharmacology, 37, 1911, 1922).
Cerebral spinal fluid (CSF) levels of orexin are lower in depressed or suicidal patients, and the level of orexin inversely correlates with illness severity (Brundin et al., 2007, European Neuropsychopharmacology, 17, 573-579; Salomon et al., 2003, Biol Psychiatry, 54, 96-104). A positive correlation between orexin-1 receptor mRNA in the amygdala and depressive behavior in the forced swim test in mice has been reported (Arendt, 2013, Behavioral Neuroscience, 127, 86-94).
The orexin system also interacts with brain dopamine systems. Intracerebroventricular injections of orexin in mice increase locomotor activity, grooming and stereotypy; these behavioral effects are reversed by administration of D2 dopamine receptor antagonists (Nakamura et al., 2000, Brain Res. 873: 181-187). Therefore, orexin receptor modulators may be useful to treat various neurological disorders; e.g., agonists or up-regulators to treat catatonia, antagonists or down-regulators to treat Parkinson's disease, Tourette's syndrome, anxiety, delirium and dementias.
Orexins and their receptors have been found in both the myenteric and submucosal plexus of the enteric nervous system, where orexins have been shown to increase motility in vitro (Kirchgessner & Liu, 1999, Neuron 24: 941-951) and to stimulate gastric acid secretion in vitro (Takahashi et al., 1999, Biochem. Biophys. Res. Comm. 254: 623-627). Orexin effects on the gut may be driven by a projection via the vagus nerve (van den Pol, 1999, supra), as vagotomy or atropine prevent the effect of an intracerebroventricular injection of orexin on gastric acid secretion (Takahashi et al., 1999, supra). Orexin receptor antagonists or other down-regulators of orexin receptor-mediated systems are therefore potential treatments for ulcers, irritable bowel syndrome, diarrhea and gastroesophageal reflux.
Body weight may also be affected by orexin-mediated regulation of appetite and metabolism. Some effects of orexin on metabolism and appetite may be mediated in the gut, where, as mentioned, orexins alter gastric motility and gastric acid secretion. Orexin antagonists therefore are likely to be useful in treatment of overweight or obesity and conditions related to overweight or obesity, such as insulin resistance/type II diabetes, hyperlipidemia, gallstones, angina, hypertension, breathlessness, tachycardia, infertility, sleep apnea, back and joint pain, varicose veins and osteoarthritis. Conversely, orexin agonists are likely to be useful in treatment of underweight and related conditions such as hypotension, bradycardia, amenorrhea and related infertility, and eating disorders such as anorexia and bulimia.
Intracerebroventricularly administered orexins have been shown to increase mean arterial pressure and heart rate in freely moving (awake) animals (Samson et al., 1999, Brain Res. 831: 248-253; Shirasaka et al., 1999, Am. J. Physiol. 277: R1780-R1785) and in urethane-anesthetized animals (Chen et al., 2000, Am. J. Physiol. 278: R692-R697), with similar results. Orexin receptor agonists may therefore be candidates for treatment of hypotension, bradycardia and heart failure related thereto, while orexin receptor antagonists may be useful for treatment of hypertension, tachycardia and other arrhythmias, angina pectoris and acute heart failure.
From the foregoing discussion, it can be seen that the identification of orexin receptor modulators, will be of great advantage in the development of therapeutic agents for the treatment of a wide variety of disorders that are mediated through these receptor systems.
The present invention is directed to compounds of Formula I:
wherein ring A is phenyl, naphthalenyl, pyridyl, quinolinyl, isoquinolinyl, imidazopyridyl, furanyl, thiazolyl, isoxazolyl, pyrazolyl, imidazothiazolyl, benzimidazolyl, or indazolyl; R1 is H, alkyl, alkoxy, hydroxyalkylene, OH, halo, phenyl, triazolyl, oxazolyl, isoxazolyl, pyridyl, pyrimidinyl, pyrazinyl, pyridazinyl, piperazinyl, pyrazolyl, oxadiazolyl, pyrrolidinyl, thiophenyl, morpholinyl, or dialkylamino; R2 is H, alkyl, alkoxy, hydroxyalkylene, or halo; Z is NH, N-alkyl, or O; R5 is pyridyl, pyrimidinyl, pyrazinyl, pyridazinyl, quinazolinyl, quinoxalinyl, pyrazolyl, benzoxazolyl, imidazopyrazinyl, triazolopyrazinyl, optionally substituted with a one or two substituents independently selected from the group consisting of alkyl, alkoxy, or halo; and n is 0 or 1. Enantiomers and diastereomers of the compounds of Formula I are also described, as well as the pharmaceutically acceptable salts.
Methods of making the compounds of Formula I are also described. The invention also relates to pharmaceutical compositions comprising compounds of Formula I. Methods of using the compounds of the invention are also within the scope of the invention.
The invention may be more fully appreciated by reference to the following description, including the following glossary of terms and the concluding examples.
The term “alkyl” refers to a straight- or branched-chain alkyl group having from 1 to 12 carbon atoms in the chain. Examples of alkyl groups include methyl (Me) ethyl (Et), n-propyl, isopropyl, butyl, isobutyl, sec-butyl, tert-butyl (tBu), pentyl, isopentyl, tert-pentyl, hexyl, isohexyl, and groups that in light of the ordinary skill in the art and the teachings provided herein would be considered equivalent to any one of the foregoing examples. Alkyl groups of the invention can be optionally substituted with, for example, one or more halogen atoms. One exemplary substituent is fluoro. Preferred substituted alkyl groups of the invention include trihalogenated alkyl groups such as trifluoromethyl groups.
Alkyl groups of the invention can also refer to “cycloalkyl” moieties. Cycloalkyl refers to monocyclic, non-aromatic hydrocarbon groups having from 3 to 7 carbon atoms. Examples of cycloalkyl groups include, for example, cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, 1-methylcyclopropyl, 2-methylcyclopentyl, and the like.
The term “alkoxy” includes a straight chain or branched alkyl group with a terminal oxygen linking the alkyl group to the rest of the molecule. Alkoxy includes methoxy, ethoxy, propoxy, isopropoxy, butoxy, t-butoxy, pentoxy and so on. Alkoxy groups of the inventions can be optionally substituted with, for example, one or more halogen atoms (haloalkoxy). One exemplary substitutent is fluoro. Preferred substituted alkoxy groups of the invention are substituted with one, two, or three halogen atoms, for example, —OCHCF2.
The term “amino” represents NH2. The term “dialkylamino” represents the moiety wherein each H of the amino group is replaced by an alkyl group. These alkyl groups ca be the same or different. Preferred alkyl groups are the C1-6alkyl groups. Examples of dialkyl amino groups include dimethylamino, diethylamino, diisopropylamino, and the like. Other examples include methylethylamino, methylisopropylamino, and the like.
The term “aryl ring” represents” a mono- or bi-cyclic aromatic, hydrocarbon ring structure. Aryl rings can have 6 or 10 carbon atoms in the ring.
The term “benzimidazolyl” represents the following moiety:
The benzimidazolyl moiety can be attached through any one of the 1-, 2-, 3-, 4-, 5-, 6-, or 7-position atoms.
The term “benzoxazolyl” represents the following moiety:
The benoxazolyl moiety can be attached through any one of the 2-, 4-, 5-, 6-, or 7-position carbon atoms.
The term “furanyl” represents the following moiety:
The furanyl moiety can be attached through any one of the 2-, 3-, 4-, or 5-position carbon atoms.
The term “halogen” represents chlorine, fluorine, bromine, or iodine. The term “halo” represents chloro, fluoro, bromo, or iodo.
The term “heteroaryl ring” represents a mono- or bicyclic aromatic ring structure including carbon atoms as well as up to four heteroatoms selected from nitrogen, oxygen, and sulfur. Heteroaryl rings can include a total of 5, 6, 9, or 10 ring atoms.
The term “hydroxyalkylene” represents an alkyl group, terminally substituted with OH. Examples of hydroxyalkylene moieties include —CH2—OH, —CH2CH2—OH, —CH2CH2CH2—OH, and the like.
The term “imidazopyridyl” represents the following moiety:
The imidazopyridyl moiety can be attached through any one of the 2-, 3-, 4-, 5-, 6-, or 7-position carbon atoms.
The term “imidazopyrazinyl” represents the following moiety:
The imidazopyrazinyl moiety can be attached through any one of the 2-, 5-, or 6-position carbon atoms.
The term “imidazothiazolyl” represents the following moiety:
The imidazothiazolyl moiety can be attached through any one of the 2-, 3-, 5-, or 6-position carbon atoms.
The term “indazolyl” represents the following moiety:
The indazolyl moiety can be attached through any one of the 1-, 3-, 4-, 5-, 6-, or 7-position atoms.
The term “isoquinolinyl” represents the following moiety:
The isoquinolinyl moiety can be attached through any one of the 1-, 3-, 4-, 5-, 6-, 7-, or 8-position carbon atoms.
The term “isoxazolyl” represents the following moiety:
The isoxazolyl moiety can be attached through any one of the 3-, 4-, or 5-position carbon atoms. Isoxazolyl groups of the invention can be optionally substituted with, for example, one or two alkyl groups, for example, one or two methyl groups.
The term “naphthalenyl” represents the following moiety:
The naphthalenyl moiety can be attached through any one of the 1-, 2-, 3-, 4-, 5-, 6-, 7-, or 8-position carbon atoms.
The term “morpholinyl” represents the following moiety:
The 4-position nitrogen atom may be substituted with H or alkyl, for example methyl. The 4-position nitrogen can also be protected with a nitrogen protecting group such as a butyl-oxycarbonyl (-Boc). The morpholinyl moiety can be attached through any one of the 2-, 3-, 4-, 5-, or 6-position atoms.
The term “oxazolyl” represents the following moiety:
The oxazolyl moiety can be attached through any one of the carbon atoms. Oxazolyl groups of the invention can be optionally substituted with, for example, one or two alkyl groups, for example, one or two methyl groups.
The term “oxadiazolyl” represents a 1,2,3-oxadiazole, 1,2,4-oxadiazole, 1,2,5-oxadiazole, or 1,3,4-oxadiazole moiety:
The oxadiazolyl moieties can be attached through any one of the carbon or nitrogen atoms. Within the scope of the invention, “oxadiazolyl” groups can be substituted with an alkyl group, preferably a methyl group.
The term “phenyl” represents the following moiety:
Phenyl groups of the inventions can be optionally substituted with, for example, one or more halogen atoms (halo-phenyl). Exemplary substituents are fluoro, bromo, and chloro. Preferred substituted phenyl groups of the invention are substituted with one, two, or three halogen atoms.
The term “pyridyl” represents the following moiety:
The pyridyl moiety can be attached through any one of the 2-, 3-, 4-, 5-, or 6-position carbon atoms. Pyridyl groups of the invention can be optionally substituted with, for example, one or more alkyl groups, for example, one or two methyl groups.
The term “piperazinyl” represents the following moiety:
The piperazinyl moiety can be attached through any one of the 1-, 2-, 3-, 4-, 5-, or 6-position atoms. Any one of the nitrogen atoms of the piperazinyl moiety can be substituted with H or alkyl, for example, methyl.
The term “pyrimidinyl” represents the following moiety:
The pyrimidinyl moiety can be attached through any one of the 2-, 4-, 5-, or 6-position carbon atoms. Within the scope of the invention, “pyrimidinyl” groups of the invention can be substituted with halogen, for example fluoro.
The term “pyrazinyl” represents the following moiety:
The pyrazinyl moiety can be attached through any one of the 2-, 3-, 5-, or 6-position carbon atoms.
The term “pyridazinyl” represents the following moiety:
The pyridazinyl moiety can be attached through any one of the 3-, 4-, 5-, or 6-position carbon atoms.
The term “pyrazolyl” represents the following moiety:
The pyrazolyl moiety can be attached through any one of the 1-, 2-, 3-, 4-, or 5-position carbon atoms. Pyrazolyl groups of the invention can be optionally substituted with, for example, one or two alkyl groups, for example, one or two methyl groups.
The term “pyrrolidinyl” represents the following moiety:
The pyrrolidinyl moiety can be attached through any one of the 1-, 2-, 3-, 4-, or 5-position atoms. When the pyrrolidinyl moiety is not attached through the 1-position nitrogen, the nitrogen can be substituted with H or alkyl, for example methyl.
The term “quinolinyl” represents the following moiety:
The quinolinyl moiety can be attached through any one of the 2-, 3-, 4-, 5-, 6-, 7-, or 8-position carbon atoms.
The term “quinoxalinyl” represents the following moiety:
The quinoxalinyl moiety can be attached through any one of the 2-, 3-, 5-, 6-, 7-, or 8-position carbon atoms.
The term “quinazolinyl” represents the following moiety:
The quinoxalinyl moiety can be attached through any one of the 2-, 4-, 5-, 6-, 7-, or 8-position carbon atoms.
The term “thiazolyl” represents the following moiety:
The thiazolyl moiety can be attached through any one of the 2-, 4-, or 5-position carbon atoms.
The term “thiophenyl” represents the following moiety:
The thiophenyl moiety can be attached through any one of the 2-, 3-, 4-, or 5-position carbon atoms.
The term “triazolopyrazinyl” represents the following moiety:
The triazolopyrazinyl moiety can be attached through any one of the 1-, 3-, 4-, 5-, 6-, or 7-position atoms.
The term “triazolyl” represents a 1,2,3-triazole or a 1,2,4-triazole moiety:
The triazolyl moieties can be attached through any one of their atoms.
“Pharmaceutically acceptable” means approved or approvable by a regulatory agency of the Federal or a state government or the corresponding agency in countries other than the United States, or that is listed in the U.S. Pharmacopoeia or other generally recognized pharmacopoeia for use in animals, and more particularly, in humans.
“Pharmaceutically acceptable salt” refers to a salt of a compound of the invention that is pharmaceutically acceptable and that possesses the desired pharmacological activity of the parent compound. In particular, such salts are non-toxic may be inorganic or organic acid addition salts and base addition salts. Specifically, such salts include: (1) acid addition salts, formed with inorganic acids such as hydrochloric acid, hydrobromic acid, sulfuric acid, nitric acid, phosphoric acid, and the like; or formed with organic acids such as acetic acid, propionic acid, hexanoic acid, cyclopentanepropionic acid, glycolic acid, pyruvic acid, lactic acid, malonic acid, succinic acid, malic acid, maleic acid, fumaric acid, tartaric acid, citric acid, benzoic acid, 3-(4-hydroxybenzoyl)benzoic acid, cinnamic acid, mandelic acid, methanesulfonic acid, ethanesulfonic acid, 1,2-ethane-disulfonic acid, 2-hydroxyethanesulfonic acid, benzenesulfonic acid, 4-chlorobenzenesulfonic acid, 2-naphthalenesulfonic acid, 4-toluenesulfonic acid, camphorsulfonic acid, 4-methylbicyclo[2.2.2]-oct-2-ene-1-carboxylic acid, glucoheptonic acid, 3-phenylpropionic acid, trimethylacetic acid, tertiary butylacetic acid, lauryl sulfuric acid, gluconic acid, glutamic acid, hydroxynaphthoic acid, salicylic acid, stearic acid, muconic acid, and the like; or (2) salts formed when an acidic proton present in the parent compound either is replaced by a metal ion, e.g., an alkali metal ion, an alkaline earth ion, or an aluminum ion; or coordinates with an organic base such as ethanolamine, diethanolamine, triethanolamine, N-methylglucamine and the like. Salts further include, by way of example only, sodium, potassium, calcium, magnesium, ammonium, tetraalkylammonium, and the like; and when the compound contains a basic functionality, salts of non toxic organic or inorganic acids, such as hydrochloride, hydrobromide, tartrate, mesylate, acetate, maleate, oxalate and the like.
“Pharmaceutically acceptable vehicle” refers to a diluent, adjuvant, excipient or carrier with which a compound of the invention is administered. A “pharmaceutically acceptable excipient” refers to a substance that is non-toxic, biologically tolerable, and otherwise biologically suitable for administration to a subject, such as an inert substance, added to a pharmacological composition or otherwise used as a vehicle, carrier, or diluent to facilitate administration of agent and that is compatible therewith. Examples of excipients include calcium carbonate, calcium phosphate, various sugars and types of starch, cellulose derivatives, gelatin, vegetable oils, and polyethylene glycols.
“Subject” includes humans. The terms “human,” “patient,” and “subject” are used interchangeably herein.
“Treating” or “treatment” of any disease or disorder refers, in one embodiment, to ameliorating the disease or disorder (i.e., arresting or reducing the development of the disease or at least one of the clinical symptoms thereof). In another embodiment “treating” or “treatment” refers to ameliorating at least one physical parameter, which may not be discernible by the subject. In yet another embodiment, “treating” or “treatment” refers to modulating the disease or disorder, either physically, (e.g., stabilization of a discernible symptom), physiologically, (e.g., stabilization of a physical parameter), or both. In yet another embodiment, “treating” or “treatment” refers to delaying the onset of the disease or disorder.
“Compounds of the present invention,” and equivalent expressions, are meant to embrace compounds of the Formula (I) as described herein, which expression includes the pharmaceutically acceptable salts, and the solvates, e.g., hydrates, where the context so permits. Similarly, reference to intermediates, whether or not they themselves are claimed, is meant to embrace their salts, and solvates, where the context so permits.
As used herein, the term “isotopic variant” refers to a compound that contains unnatural proportions of isotopes at one or more of the atoms that constitute such compound. For example, an “isotopic variant” of a compound can be radiolabeled, that is, contain one or more non-radioactive isotopes, such as for example, deuterium (2H or D), carbon-13 (13C), nitrogen-15 (15N), or the like. It will be understood that, in a compound where such isotopic substitution is made, the following atoms, where present, may vary, so that for example, any hydrogen may be 2H/D, any carbon may be 13C, or any nitrogen may be 15N, and that the presence and placement of such atoms may be determined within the skill of the art. Likewise, the invention may include the preparation of isotopic variants with radioisotopes, in the instance for example, where the resulting compounds may be used for drug and/or substrate tissue distribution studies. Radiolabeled compounds of the invention can be used in diagnostic methods such as Single-photon emission computed tomography (SPECT). The radioactive isotopes tritium, i.e. 3H, and carbon-14, i.e. 14C, are particularly useful for their ease of incorporation and ready means of detection. Further, compounds may be prepared that are substituted with positron emitting isotopes, such as 11C, 18F, 15O and 13N, and would be useful in Positron Emission Topography (PET) studies for examining substrate receptor occupancy.
All isotopic variants of the compounds of the invention, radioactive or not, are intended to be encompassed within the scope of the invention.
It is also to be understood that compounds that have the same molecular formula but differ in the nature or sequence of bonding of their atoms or the arrangement of their atoms in space are termed “isomers.” Isomers that differ in the arrangement of their atoms in space are termed “stereoisomers.”
Stereoisomers that are not mirror images of one another are termed “diastereomers” and those that are non-superimposable mirror images of each other are termed “enantiomers.” When a compound has an asymmetric center, for example, it is bonded to four different groups, a pair of enantiomers is possible. An enantiomer can be characterized by the absolute configuration of its asymmetric center and is described by the R- and S-sequencing rules of Cahn and Prelog, or by the manner in which the molecule rotates the plane of polarized light and designated as dextrorotatory or levorotatory (i.e., as (+) or (−)-isomers respectively). A chiral compound can exist as either individual enantiomer or as a mixture thereof. A mixture containing equal proportions of the enantiomers is called a “racemic mixture.”
“Tautomers” refer to compounds that are interchangeable forms of a particular compound structure, and that vary in the displacement of hydrogen atoms and electrons. Thus, two structures may be in equilibrium through the movement of π electrons and an atom (usually H). For example, enols and ketones are tautomers because they are rapidly interconverted by treatment with either acid or base. Another example of tautomerism is the aci- and nitro-forms of phenyl nitromethane, that are likewise formed by treatment with acid or base.
Tautomeric forms may be relevant to the attainment of the optimal chemical reactivity and biological activity of a compound of interest.
Compounds of the invention may also exist as “rotamers,” that is, conformational isomers that occur when the rotation leading to different conformations is hindered, resulting a rotational energy barrier to be overcome to convert from one conformational isomer to another.
The compounds of this invention may possess one or more asymmetric centers; such compounds can therefore be produced as individual (R)- or (S)-stereoisomers or as mixtures thereof.
Unless indicated otherwise, the description or naming of a particular compound in the specification and claims is intended to include both individual enantiomers and mixtures, racemic or otherwise, thereof. The methods for the determination of stereochemistry and the separation of stereoisomers are well-known in the art.
The present invention is directed to compounds of Formula I:
wherein
ring A is phenyl, naphthalenyl, pyridyl, quinolinyl, isoquinolinyl, imidazopyridyl, furanyl, thiazolyl, isoxazolyl, pyrazolyl, imidazothiazolyl, benzimidazolyl, or indazolyl;
R1 is H, alkyl, alkoxy, hydroxyalkylene, OH, halo, phenyl, triazolyl, oxazolyl, isoxazolyl, pyridyl, pyrimidinyl, pyrazinyl, pyridazinyl, piperazinyl, pyrazolyl, oxadiazolyl, pyrrolidinyl, thiophenyl, morpholinyl, or dialkylamino;
R2 is H, alkyl, alkoxy, hydroxyalkylene, or halo;
Z is NH, N-alkyl, or O;
R5 is pyridyl, pyrimidinyl, pyrazinyl, pyridazinyl, quinazolinyl, quinoxalinyl, pyrazolyl, benzoxazolyl, imidazopyrazinyl, or triazolopyrazinyl, optionally substituted with a one or two substituents independently selected from the group consisting of alkyl, alkoxy, or halo; and
n is 0 or 1.
Enantiomers and diastereomers of the compounds of Formula I are also within the scope of the invention. Also within the scope of the invention are the pharmaceutically acceptable salts of the compounds of Formula I, as well as the pharmaceutically acceptable salts of the enantiomers and diastereomers of the compounds of Formula I.
In preferred embodiments of the invention, Z is NH. In other embodiments, Z is N-alkyl, preferably N—C1-6alkyl, with N—CH3 being particularly preferred.
In alternative embodiments, N is O.
In preferred embodiments of the invention, ring A is a heteroaryl ring. Preferably, ring A is furanyl, which can be attached to the compounds of Formula I through any available atom, preferably the 2-position carbon atom. In other embodiments, ring A is thiazolyl, which can be attached to the compounds of Formula I through any available atom, preferably the 4-position carbon atom.
In still other embodiments, ring A is isoxazolyl, which can be attached to the compounds of Formula I through any available atom, preferably the 4-position carbon atom.
In yet other embodiments, ring A is pyrazolyl, which can be attached to the compounds of Formula I through any through any available atom, preferably the 3- or 4-position carbon atoms.
Also preferred are embodiments wherein ring A is imidazothiazolyl, which can be attached to the compounds of Formula I through any available atom, preferably the 5-position carbon atom.
In certain embodiments of the invention, ring A is benzimidazolyl, which can be attached to the compounds of Formula I through any available atom, preferably the 2-position carbon atom.
In other embodiments of the invention, ring A is indazolyl, which can be attached to the compounds of Formula I through any available atom, preferably the 3-position carbon atom.
In yet other embodiments, ring A is imidazopyridyl, which can be attached to the compounds of Formula I through any available atom, preferably the 4-, or 7-position carbon atom
In still other embodiments, ring A is quinolinyl, which can be attached to the compounds of Formula I through any available carbon atom, preferably the 5- or 8-position carbon atom.
In other embodiments, ring A is isoquinolinyl, which can be attached to the compounds of Formula I through any available carbon atom, preferably the 4-position carbon atom.
In certain embodiments, ring A is pyridyl, which can be attached to the compounds of Formula I through any available carbon atom, preferably the 2-, 3-, or 4-position carbon atom.
In some embodiments, ring A can be an aryl ring. In certain embodiments, ring A is phenyl. In other embodiments, ring A is naphthalenyl, which can be attached to the compounds of Formula I through any available carbon atom, preferably the 1-position carbon atom.
In preferred embodiments of the invention, R1 is H. In other embodiments, R1 is alkyl, preferably a C1-6alkyl, for example, methyl.
In still other embodiments, R1 is alkoxy, preferably a C1-6alkoxy such as methoxy or ethoxy. Alternatively, R1 is a substituted alkoxy, preferably substituted with one or more halo such as F, Cl, or Br. One preferred haloalkoxy is difluoromethoxy.
In other embodiments, R1 is hydroxalkylene, for example, hydroxyC1-6alkylene such as —CH2—OH or —CH2CH2—OH. In yet other embodiments, R1 is OH.
In other preferred embodiments, R1 is halo, that is, any one of F, Cl, Br, or I, with F, Cl, or Br being particularly preferred.
In still other embodiments, R1 is phenyl. In some embodiments, the phenyl can be substituted with at least one halo, for example, phenyl substituted with at least one of F, Cl, or Br.
In certain embodiments, R1 is triazolyl, with 1,2,3-triazolyl being preferred. The triazolyl can be attached through any available atom. In preferred embodiments, the 1,2,3-triazolyl is attached through the 2-position nitrogen atom. In other embodiments, the 1,2,3-triazolyl is attached through the 1-position nitrogen atom.
In yet other embodiments, R1 is oxazolyl, which can be attached through any available atom, preferably attached through the 2-position carbon. In some embodiments, the oxazolyl can be substituted with alkyl, for example, a C1-6alkyl such as methyl.
In other embodiments, R1 is isoxazolyl, which can be attached through any available atom. In some embodiments, the isoxazolyl can be substituted with alkyl, for example, a C1-6alkyl such as methyl.
In still other embodiments, R1 is pyridyl, which can be attached through any available carbon atom. In some embodiments, the pyridyl can be substituted with at least one alkyl, for example, C1-6alkyl such as methyl.
In certain embodiments, R1 is pyrimidinyl, which can be attached through any available carbon atom. In other embodiments, R1 is pyrazinyl, which can be attached through any available carbon atom. In yet other embodiments, R1 is pyridazinyl, which can be attached through any available carbon atom.
In other embodiments, R1 is piperazinyl which can be attached through any available atom. In some embodiments, one or both nitrogen atoms of the piperazinyl may be substituted with H or alkyl, for example, C1-6alkyl such as methyl.
In still other embodiments, R1 is morpholinyl, which can be attached through any available atom. In some embodiments, the nitrogen of the morpholinyl may be substituted with H or alkyl, for example, C1-6alkyl such as methyl.
In yet other embodiments, R1 is pyrrolidinyl, which can be attached through any available atom. In some embodiments, the nitrogen of the pyrrolidinyl may be substituted with H or alkyl, for example, C1-6alkyl such as methyl.
In other embodiments, R1 is dialkylamino, for example, dimethylamino, diethylamino, or methylethylamino.
In other embodiments, R1 is pyrazolyl, which can be attached through any available atom. In some embodiments, the pyrazolyl can be substituted with one or two alkyl, for example, C1-6alkyl such as methyl.
In yet other embodiments, R1 is oxadiazolyl, which can be a 1,2,3-oxadiazolyl, 1,2,4-oxadiazolyl, 1,2,5-oxadiazolyl, or 1,3,4-oxadiazolyl. Preferably, the oxadiazolyl is 1,2,4-oxadiazolyl. The oxadiazolyl can be attached through any available atom. In some embodiments, the oxadiazolyl can be substituted with alkyl, for example, C1-6alkyl such as methyl.
In still other embodiments, R1 is thiophenyl, which can be attached through any available carbon atom.
In preferred embodiments of the invention, R2 is H. In other embodiments, R2 is alkyl, for example, C1-6alkyl such as methyl or ethyl. In yet other embodiments, R2 is alkoxy, for example, C1-6alkoxy such as methoxy or ethoxy. In other embodiments, R2 is hydroxylalkene, for example, —CH2—OH or CH2CH2—OH. In still other embodiments, R2 is halo, preferably, any one of F, Cl, or Br.
In exemplary embodiments of the invention, ring A is
wherein
In certain of these embodiments, X is CR6 and Y is CR7.
In other of these embodiments, X is CR6 and Y is N.
In still other of these embodiments, X is N and Y is CR7.
In those embodiments wherein X is CR6, for example those embodiments wherein X is CR6 and Y is CR7 or X is CR6 and Y is N, R6 is H. Alternatively, R6 is alkyl, for example, C1-6alkyl such as methyl or ethyl.
In other of these embodiments, R6 is alkoxy, for example, C1-6alkoxy such as methoxy or ethoxy.
In still other of these embodiments, R6 is OH.
In yet other of these embodiments, R6 is halo, preferably, any one of F, Cl, or Br.
In those embodiments wherein X is CR6, for example those embodiments wherein X is CR6 and Y is CR7 or X is CR6 and Y is N, R6 is triazolyl with 1,2,3-triazolyl being preferred. The triazolyl can be attached through any available atom. In preferred embodiments, the 1,2,3-triazolyl is attached through the 2-position nitrogen atom. In other embodiments, the 1,2,3-triazolyl is attached through the 1-position nitrogen atom.
In those embodiments wherein X is CR6, for example those embodiments wherein X is CR6 and Y is CR7 or X is CR6 and Y is N, R6 is oxazolyl, which can be attached through any available atom. In some embodiments, the oxazolyl can be substituted with alkyl, for example, C1-6alkyl such as methyl.
In those embodiments wherein X is CR6, for example those embodiments wherein X is CR6 and Y is CR7 or X is CR6 and Y is N, R6 is oxadiazolyl, which can be a 1,2,3-oxadiazolyl, 1,2,4-oxadiazolyl, 1,2,5-oxadiazolyl, or 1,3,4-oxadiazolyl. Preferably, the oxadiazolyl is 1,2,4-oxadiazolyl. The oxadiazolyl can be attached through any available atom. In some embodiments, the oxadiazolyl can be substituted with alkyl, for example, C1-6alkyl such as methyl.
In those embodiments wherein X is CR6, for example those embodiments wherein X is CR6 and Y is CR7 or X is CR6 and Y is N, R6 is pyrazolyl, which can be attached through any available atom. In some embodiments, the pyrazolyl can be substituted with one or two alkyl, for example, C1-6alkyl such as methyl.
In those embodiments wherein X is CR6, for example those embodiments wherein X is CR6 and Y is CR7 or X is CR6 and Y is N, R6 is thiophenyl, which can be attached through any available atom.
In those embodiments wherein X is CR6, for example those embodiments wherein X is CR6 and Y is CR7 or X is CR6 and Y is N, R6 is pyridyl, which can be attached through any available atom. In some embodiments, the pyridyl can be substituted with one or more alkyl, for example, C1-6alkyl such as methyl. One exemplary substituted pyridyl is methyl-pyridyl.
In those embodiments wherein X is CR6, for example those embodiments wherein X is CR6 and Y is CR7 or X is CR6 and Y is N, R6 is pyrimidinyl, which can be attached through any available atom. In other embodiments, R6 is pyrazinyl, which can be attached through any available atom. In still other embodiments, R6 is pyridazinyl, which can be attached through any available atom.
In preferred embodiments wherein Y is CR7, for example, those embodiments wherein X is CR6 and Y is CR7 or X is N and Y is CR7, R7 is H. In other embodiments, R7 is alkyl, for example, C1-6alkyl such as methyl or ethyl.
In those embodiments wherein Y is CR7, for example, those embodiments wherein X is CR6 and Y is CR7 or X is N and Y is CR7, R7 is alkoxy, for example, C1-6alkoxy such as methoxy or ethoxy. In other embodiments, the alkoxy is substituted with, for example, one or more halo. One preferred substituted alkoxy is difluoromethoxy.
In those embodiments wherein Y is CR7, for example, those embodiments wherein X is CR6 and Y is CR7 or X is N and Y is CR7, R7 is halo, preferably one of F, Cl, or Br.
In some embodiments, X is NR6 and Y is CR7.
In other embodiments, X is CR6 and Y is NR7.
In those embodiments wherein X is NR6 and Y is CR7 or X is CR6 and Y is NR7, R6 and R7, together with the atoms to which they are attached, form a 5-membered heteroaryl ring. These 5-membered rings can be optionally substituted with alkyl, for example C1-6alkyl such as methyl.
In those embodiments wherein X is NR6 and Y is CR7 or X is CR6 and Y is NR7, R6 and R7, together with the atoms to which they are attached, form a 6-membered heteroaryl ring. These 5-membered rings can be optionally substituted with alkyl, for example C1-6alkyl such as methyl.
In those embodiments wherein Y is CR7 or NR7, R7 and R4, together with the atoms to which they are attached, form a 6-membered aryl ring. Alternatively, R7 and R4, together with the atoms to which they are attached, form a 6-membered heteroaryl ring.
In preferred embodiments, R3 is H. In other embodiments, R3 is alkyl, for example, C1-6alkyl such as methyl or ethyl.
In other embodiments, R3 is alkoxy, for example, C1-6alkoxy such as methoxy or ethoxy. In some embodiments, the alkoxy is substituted with, for example, one or more halo. One preferred substituted alkoxy is difluoromethoxy.
In some embodiments, R3 is hydroxyalkylene, for example, hydroxyC1-6alklene such as —CH2—OH and —CH2CH2—OH. In yet other embodiments, R3 is OH.
In other preferred embodiments, R3 is halo, preferably any one of F, Cl, or Br.
In still other embodiments, R3 is phenyl. In some embodiments, the phenyl can be substituted with one or more halo, for example, phenyl substituted with at least one of F, Cl, or Br.
In certain embodiments, R3 is triazolyl, with 1,2,3-triazolyl being preferred. The triazolyl can be attached through any available atom. In preferred embodiments, the 1,2,3-triazolyl is attached through the 2-position nitrogen atom. In other embodiments, the 1,2,3-triazolyl is attached through the 1-position nitrogen atom.
In yet other embodiments, R3 is oxazolyl, which can be attached through any available atom, preferably attached through the 2-position carbon. In some embodiments, the oxazolyl can be substituted with alkyl, for example, a C1-6alkyl such as methyl.
In other embodiments, R3 is isoxazolyl, which can be attached through any available atom. In some embodiments, the isoxazolyl can be substituted with alkyl, for example, a C1-6alkyl such as methyl.
In other embodiments, R3 is oxadiazolyl, which can be a 1,2,3-oxadiazolyl, 1,2,4-oxadiazolyl, 1,2,5-oxadiazolyl, or 1,3,4-oxadiazolyl. Preferably, the oxadiazolyl is 1,2,4-oxadiazolyl. The oxadiazolyl can be attached through any available atom. In some embodiments, the oxadiazolyl can be substituted with alkyl, for example, C1-6alkyl such as methyl.
In still other embodiments, R3 is pyridyl, which can be attached through any available carbon atom. In some embodiments, the pyridyl can be substituted with one or more alkyl, for example, C1-6alkyl such as methyl.
In other embodiments, R3 is pyrazolyl, which can be attached through any available atom. In some embodiments, the pyrazolyl can be substituted with one or two alkyl, for example, C1-6alkyl such as methyl.
In certain embodiments, R3 is pyrimidinyl, which can be attached through any available carbon atom. In other embodiments, R3 is pyrazinyl, which can be attached through any available carbon atom. In yet other embodiments, R3 is pyridazinyl, which can be attached through any available carbon atom.
In other embodiments, R3 is piperazinyl which can be attached through any available atom. In some embodiments, one or both nitrogen atoms of the piperazinyl may be substituted with H or alkyl, for example, C1-6alkyl such as methyl.
In still other embodiments, R3 is morpholinyl, which can be attached through any available atom. In some embodiments, the nitrogen atom of the morpholinyl may be substituted with H or alkyl, for example, C1-6alkyl such as methyl.
In yet other embodiments, R3 is pyrrolidinyl, which can be attached through any available atom. In some embodiments, the nitrogen atom of the pyrrolidinyl may be substituted with H or alkyl, for example, C1-6alkyl such as methyl.
In other embodiments, R3 is dialkylamino, for example, dimethylamino, diethylamino, or methylethylamino.
In other embodiments, R3 is pyrazolyl, which can be attached through any available atom. In some embodiments, the pyrazolyl can be substituted with one or two alkyl, for example, C1-6alkyl such as methyl.
In still other embodiments, R3 is thiophenyl, which can be attached through any available carbon atom.
In preferred embodiments of the invention, R4 is H. In other embodiments, R4 is alkyl, for example, C1-6alkyl such as methyl or ethyl. In still other embodiments, R4 is alkoxy, for example, C1-6alkoxy such as methoxy or ethoxy. In yet other embodiments, R4 is halo, preferably, any one of F, Cl, or Br.
In some embodiments, R3 and R4, together with the atoms to which they are attached, form a 6-membered aryl ring.
In other embodiments, R3 and R4, together with the atoms to which they are attached, form a 6-membered heteroarylaryl ring.
In preferred embodiments of the invention, R5 is a heteroaryl ring. According to some embodiments of the invention, R5 is pyridyl, which can be attached through any available atom, optionally substituted with a one or two substituents independently selected from the group consisting of alkyl, alkoxy, or halo. In some embodiments, alkyl is trihaloalkyl, for example trifluoromethyl.
According to some embodiments of the invention, R5 is pyrimidinyl, which can be attached through any available atom, optionally substituted with a one or two substituents independently selected from the group consisting of alkyl, alkoxy, or halo. In some embodiments, alkyl is trihaloalkyl, for example trifluoromethyl.
According to some embodiments of the invention, R5 is pyrazinyl, which can be attached through any available atom, optionally substituted with a one or two substituents independently selected from the group consisting of alkyl, alkoxy, or halo. In some embodiments, alkyl is trihaloalkyl, for example trifluoromethyl.
According to some embodiments of the invention, R5 is pyridazinyl, which can be attached through any available atom, optionally substituted with a one or two substituents independently selected from the group consisting of alkyl, alkoxy, or halo. In some embodiments, alkyl is trihaloalkyl, for example trifluoromethyl.
According to some embodiments of the invention, R5 is quinazolinyl, which can be attached through any available atom, optionally substituted with a one or two substituents independently selected from the group consisting of alkyl, alkoxy, or halo. In some embodiments, alkyl is trihaloalkyl, for example trifluoromethyl.
According to some embodiments of the invention, R5 is quinoxalinyl, which can be attached through any available atom, optionally substituted with a one or two substituents independently selected from the group consisting of alkyl, alkoxy, or halo. In some embodiments, alkyl is trihaloalkyl, for example trifluoromethyl.
According to some embodiments of the invention, R5 is pyrazolyl, which can be attached through any available atom, optionally substituted with a one or two substituents independently selected from the group consisting of alkyl, alkoxy, or halo. In some embodiments, alkyl is trihaloalkyl, for example trifluoromethyl. In some embodiments, the pyrazolyl is methyl-pyrazolyl substituted with trifluoromethyl.
According to some embodiments of the invention, R5 is benzoxazolyl, which can be attached through any available atom, optionally substituted with a one or two substituents independently selected from the group consisting of alkyl, alkoxy, or halo. In some embodiments, alkyl is trihaloalkyl, for example trifluoromethyl.
According to some embodiments of the invention, R5 is imidazopyrazinyl, which can be attached through any available atom, optionally substituted with a one or two substituents independently selected from the group consisting of alkyl, alkoxy, or halo. In some embodiments, alkyl is trihaloalkyl, for example trifluoromethyl.
According to some embodiments of the invention, R5 is triazolopyrazinyl, which can be attached through any available atom, optionally substituted with a one or two substituents independently selected from the group consisting of alkyl, alkoxy, or halo. In some embodiments, alkyl is trihaloalkyl, for example trifluoromethyl.
In some embodiments of the invention n is 0. In other embodiments, n is 1.
The invention relates to methods of using the compounds described herein to treat subjects diagnosed with or suffering from a disease, disorder, or condition mediated by orexin receptor activity. These methods are accomplished by administering to the subject a compound of the invention.
Diseases, disorders, and conditions mediated by orexin receptor activity include disorders of the sleep-wake cycle, insomnia, restless legs syndrome, jet-lag, disturbed sleep, sleep disorders secondary to neurological disorders, mania, depression, manic depression, schizophrenia, pain syndromes, fibromyalgia, neuropathic pain, catatonia, Parkinson's disease, Tourette's syndrome, anxiety, delirium, dementia, overweight, obesity, or conditions related to overweight or obesity, insulin resistance, type II diabetes, hyperlipidemia, gallstones, angina, hypertension, breathlessness, tachycardia, infertility, sleep apnea, back and joint pain, varicose veins, osteoarthritis, hypertension, tachycardia, arrhythmias, angina pectoris, acute heart failure, ulcers, irritable bowel syndrome, diarrhea gastroesophageal reflux, mood disorders, post-traumatic stress disorder, panic disorders, attention deficit disorders, cognitive deficiencies, or substance abuse.
Compounds of the invention are particularly suited for the treatment of mood disorders, post-traumatic stress disorder, panic disorders, attention deficit disorders, cognitive deficiencies, or substance abuse.
Sleep disorders include, but are not limited to, sleep-wake transition disorders, insomnia, restless legs syndrome, jet-lag, disturbed sleep, and sleep disorders secondary to neurological disorders (e.g., manias, depressions, manic depression, schizophrenia, and pain syndromes (e.g., fibromyalgia, neuropathic).
Metabolic disorders include, but are not limited to, overweight or obesity and conditions related to overweight or obesity, such as insulin resistance, type II diabetes, hyperlipidemia, gallstones, angina, hypertension, breathlessness, tachycardia, infertility, sleep apnea, back and joint pain, varicose veins and osteoarthritis.
Neurological disorders include, but are not limited to, Parkinson's disease, Alzheimer's disease, Tourette's Syndrome, catatonia, anxiety, delirium and dementias.
In treatment methods according to the invention, an effective amount of a pharmaceutical agent according to the invention is administered to a subject suffering from or diagnosed as having such a disease, disorder, or condition. An “effective amount” means an amount or dose sufficient to generally bring about the desired therapeutic or prophylactic benefit in patients in need of such treatment for the designated disease, disorder, or condition. Effective amounts or doses of the compounds of the present invention may be ascertained by routine methods such as modeling, dose escalation studies or clinical trials, and by taking into consideration routine factors, e.g., the mode or route of administration or drug delivery, the pharmacokinetics of the compound, the severity and course of the disease, disorder, or condition, the subject's previous or ongoing therapy, the subject's health status and response to drugs, and the judgment of the treating physician. An example of a dose is in the range of from about 0.001 to about 200 mg of compound per kg of subject's body weight per day, preferably about 0.05 to 100 mg/kg/day, or about 1 to 35 mg/kg/day, in single or divided dosage units (e.g., BID, TID, QID). For a 70-kg human, an illustrative range for a suitable dosage amount is from about 0.05 to about 7 g/day, or about 0.2 to about 2.5 g/day.
Once improvement of the patient's disease, disorder, or condition has occurred, the dose may be adjusted for preventative or maintenance treatment. For example, the dosage or the frequency of administration, or both, may be reduced as a function of the symptoms, to a level at which the desired therapeutic or prophylactic effect is maintained. Of course, if symptoms have been alleviated to an appropriate level, treatment may cease. Patients may, however, require intermittent treatment on a long-term basis upon any recurrence of symptoms.
In addition, the compounds of the invention may be used in combination with additional active ingredients in the treatment of the above conditions. The additional active ingredients may be coadministered separately with a compound of the invention or included with such an agent in a pharmaceutical composition according to the invention. In an exemplary embodiment, additional active ingredients are those that are known or discovered to be effective in the treatment of conditions, disorders, or diseases mediated by orexin activity, such as another orexin modulator or a compound active against another target associated with the particular condition, disorder, or disease. The combination may serve to increase efficacy (e.g., by including in the combination a compound potentiating the potency or effectiveness of an active agent according to the invention), decrease one or more side effects, or decrease the required dose of the active agent according to the invention.
The compounds of the invention are used, alone or in combination with one or more additional active ingredients, to formulate pharmaceutical compositions of the invention. A pharmaceutical composition of the invention comprises: (a) an effective amount of at least one compound in accordance with the invention; and (b) a pharmaceutically acceptable excipient.
Delivery forms of the pharmaceutical compositions containing one or more dosage units of the active agents may be prepared using suitable pharmaceutical excipients and compounding techniques known or that become available to those skilled in the art. The compositions may be administered in the inventive methods by a suitable route of delivery, e.g., oral, parenteral, rectal, topical, or ocular routes, or by inhalation.
The preparation may be in the form of tablets, capsules, sachets, dragees, powders, granules, lozenges, powders for reconstitution, liquid preparations, or suppositories. Preferably, the compositions are formulated for intravenous infusion, topical administration, or oral administration.
For oral administration, the compounds of the invention can be provided in the form of tablets or capsules, or as a solution, emulsion, or suspension. To prepare the oral compositions, the compounds may be formulated to yield a dosage of, e.g., from about 0.05 to about 100 mg/kg daily, or from about 0.05 to about 35 mg/kg daily, or from about 0.1 to about 10 mg/kg daily. For example, a total daily dosage of about 5 mg to 5 g daily may be accomplished by dosing once, twice, three, or four times per day.
Oral tablets may include a compound according to the invention mixed with pharmaceutically acceptable excipients such as inert diluents, disintegrating agents, binding agents, lubricating agents, sweetening agents, flavoring agents, coloring agents and preservative agents. Suitable inert fillers include sodium and calcium carbonate, sodium and calcium phosphate, lactose, starch, sugar, glucose, methyl cellulose, magnesium stearate, mannitol, sorbitol, and the like. Exemplary liquid oral excipients include ethanol, glycerol, water, and the like. Starch, polyvinyl-pyrrolidone (PVP), sodium starch glycolate, microcrystalline cellulose, and alginic acid are suitable disintegrating agents. Binding agents may include starch and gelatin. The lubricating agent, if present, may be magnesium stearate, stearic acid or talc. If desired, the tablets may be coated with a material such as glyceryl monostearate or glyceryl distearate to delay absorption in the gastrointestinal tract, or may be coated with an enteric coating.
Capsules for oral administration include hard and soft gelatin capsules. To prepare hard gelatin capsules, compounds of the invention may be mixed with a solid, semi-solid, or liquid diluent. Soft gelatin capsules may be prepared by mixing the compound of the invention with water, an oil such as peanut oil or olive oil, liquid paraffin, a mixture of mono and di-glycerides of short chain fatty acids, polyethylene glycol 400, or propylene glycol.
Liquids for oral administration may be in the form of suspensions, solutions, emulsions or syrups or may be lyophilized or presented as a dry product for reconstitution with water or other suitable vehicle before use. Such liquid compositions may optionally contain: pharmaceutically-acceptable excipients such as suspending agents (for example, sorbitol, methyl cellulose, sodium alginate, gelatin, hydroxyethylcellulose, carboxymethylcellulose, aluminum stearate gel and the like); non-aqueous vehicles, e.g., oil (for example, almond oil or fractionated coconut oil), propylene glycol, ethyl alcohol, or water; preservatives (for example, methyl or propyl p-hydroxybenzoate or sorbic acid); wetting agents such as lecithin; and, if desired, flavoring or coloring agents.
The active agents of this invention may also be administered by non-oral routes. For example, the compositions may be formulated for rectal administration as a suppository. For parenteral use, including intravenous, intramuscular, intraperitoneal, or subcutaneous routes, the compounds of the invention may be provided in sterile aqueous solutions or suspensions, buffered to an appropriate pH and isotonicity or in parenterally acceptable oil. Suitable aqueous vehicles include Ringer's solution and isotonic sodium chloride. Such forms will be presented in unit-dose form such as ampules or disposable injection devices, in multi-dose forms such as vials from which the appropriate dose may be withdrawn, or in a solid form or pre-concentrate that can be used to prepare an injectable formulation. Illustrative infusion doses may range from about 1 to 1000 μg/kg/minute of compound, admixed with a pharmaceutical carrier over a period ranging from several minutes to several days.
For topical administration, the compounds may be mixed with a pharmaceutical carrier at a concentration of about 0.1% to about 10% of drug to vehicle. Another mode of administering the compounds of the invention may utilize a patch formulation to affect transdermal delivery.
Compounds of the invention may alternatively be administered in methods of this invention by inhalation, via the nasal or oral routes, e.g., in a spray formulation also containing a suitable carrier.
Exemplary compounds useful in methods of the invention will now be described by reference to the illustrative synthetic schemes for their general preparation below and the specific examples that follow. Artisans will recognize that, to obtain the various compounds herein, starting materials may be suitably selected so that the ultimately desired substituents will be carried through the reaction scheme with or without protection as appropriate to yield the desired product. Alternatively, it may be necessary or desirable to employ, in the place of the ultimately desired substituent, a suitable group that may be carried through the reaction scheme and replaced as appropriate with the desired substituent. Unless otherwise specified, the variables are as defined above in reference to Formula (I). Reactions may be performed between the melting point and the reflux temperature of the solvent, and preferably between 0° C. and the reflux temperature of the solvent. Reactions may be heated employing conventional heating or microwave heating. Reactions may also be conducted in sealed pressure vessels above the normal reflux temperature of the solvent.
Intermediate compounds of formula (IIIa) and (IIIb) can be prepared as outlined in Scheme 1 from commercially available or synthetically accessible compounds of formula (A) where R3, R4, X and Y are defined in formula (I) as above. Compounds of formula (IIa) and (IIb), are obtained by reacting a compound of formula (A), with commercially available 1,2,3-triazole, in the presence K2CO3 in DMF or dioxane, at temperatures ranging from about 60° C. to about 100° C. Compounds of formula (IIIa) and (IIIb) are obtained by reacting compounds of formula (II) in the presence of a base such as NaOH in a solvent such as EtOH at temperatures ranging from 80° C. to 100° C. One skilled in the art will recognize that 1,2,3-triazole can exist in two tautomeric forms defined as 2H-[1,2,3]triazole and 1H-[1,2,3]triazole thus accounting for the formation of (IIIa) and (IIIb).
Intermediate compounds of formula (III) can be prepared as outlined in Scheme 2 from commercially available or synthetically accessible compounds of formula (IVa-c). Compounds of formula (III), (Va) and (Vb) are obtained by reacting compounds of formula (IVa), (IVb) and (IVc) where Hal is —Br, or —I; W is CO2H, CO2Alkyl, or CN and R3 and R4 are —H, halo, —C1-4alkyl, —C1-4alkoxy and R3 and R4 together with the atoms to which they are attached form a 6-membered aryl or 6 membered heteroaryl ring, with commercially available 1,2,3-triazole, in the presence of, for example, copper(I)iodide, Cs2CO3 and trans-N,N′-dimethyl-1,2-cyclohexanediamine in, for example, DMF or dioxane, at temperatures ranging from about 60° C. to about 120° C. Compounds of formula (IVc) can be converted to the corresponding esters (Vb) by treatment with, for example, alkyl iodide in the presence of a base such as K2CO3 in a solvent such as DMF. Compounds of formula (III) are obtained by reacting a compound of formula (Va) and (Vb) in the presence of a base such as NaOH in a solvent such as EtOH at temperatures ranging from about 80° C. to about 100° C. One skilled in the art will recognize that 1,2,3-triazole can exist in two tautomeric forms defined as 2H-[1,2,3]triazole and 1H-[1,2,3]triazole thus compounds of formula (Va), (Vb), and (III) can also exist as the N1 linked variant (structure not shown).
Intermediate compounds of formula (IX) are prepared as outlined in Scheme 3 from commercially available or synthetically accessible compounds of formula (VI) where R3, R4, X, and Y are defined as in formula I above, G is SnBu3 or 4,4,5,5 tetramethyl-1,dioxaboralane and D is Cl, or Br, preferably Br in this case. Compounds of formula (VIII) are obtained by reacting a compound of formula (VI) with commercially available (VII) in the presence of a catalyst such as 1,1′-bis(di-tert-butylphosphino)ferrocene palladium dichloride and a base such as Na2CO3 in a solvent such as 2-MeTHF or THF at temperatures ranging from about 60° C. to about 90° C. Compounds of formula (IX) are obtained by reacting a compound of formula (VIII) in the presence of a base such as NaOH in a solvent such as MeOH at temperatures ranging from about 80° C. to about 100° C. or acids such as H2SO4 in solvents such as H2O at temperatures ranging from about 80 to about 100° C.
Intermediate compound (XIV) is prepared as outlined in Scheme 4 from commercially available compound (X). Compounds (XI) are obtained by reacting compound (X) with commercially available acrolein in a solvent such as 1,4 dioxane at temperatures of about 200° C. in a microwave reactor. Compound (XII) can be prepared from compound (XI) by treatment with an acid such as HBr in a solvent such as toluene at a temperature of about 90° C. Compound (XIII) can be obtained by treatment of compound (XII) with commercially available iodoethane and a base such as K2CO3 in a solvent such as DMF at temperatures ranging from about 45° C. to about 65° C. Compound (XIV) is obtained by treating compound (XIII) with a base such as NaOH in a solvent such as MeOH at temperatures ranging from about 80° C. to about 100° C.
Intermediate compounds of formula (XVI) are prepared as outlined in Scheme 5 from commercially available or synthetically accessible compounds of formula (XIV) where R2 is —H, —C1-4alkyl, or —C1-4alkoxy and D is Cl, or Br. Compounds of formula (XV) are obtained by reacting a compound of formula (XIV) with commercially available (VII) in the presence of a catalyst such as Pd(dppf)Cl2 and a base such as Na2CO3 in a solvent such as 2-MeTHF at temperatures ranging from 75° C. to 150° C. Compounds of formula (XVI) are obtained by reacting a compound of formula (XV) in the presence of a base such as NaOH in a solvent such as MeOH at temperatures ranging from about 80° C. to about 100° C.
Intermediate compounds of formula (XXI) can be prepared as outlined in Scheme 6 from commercially available or synthetically accessible compounds of formula (XVII) where Hal is Br or I; and where R3 and R4 are —H, halo, alkyl, alkoxy. Compounds of formula (XVIIIa) can be converted to the corresponding ester (XVIIIb) by treatment with thionyl chloride in a solvent such as MeOH. Compounds of the formula (XX) are obtained by reacting compounds of formula (XVIIIb) with commercially available compounds of the formula XIX where L is a heterocycle such as pyrazolyl, pyridyl, or oxazolyl; G is SnBu3 or 4,4,5,5 tetramethyl-1,dioxaboralane and R1 and R2 are —H, -alkyl, or -alkoxy in the presence of a catalyst such as Pd(Ph3P)4 and a base such as Na2CO3 in a mixture of solvents such as DME and H2O at temperatures ranging from 100° C. to 150° C. Compounds of formula (XXI) are obtained by reacting a compound of formula (XX) in the presence of a base such as NaOH in a solvent such as MeOH at temperatures ranging from about 80° C. to about 100° C.
Intermediate compounds of formula (XXIV) and (XXVII) are readily prepared as outlined in Scheme 7 from commercially available or synthetically accessible compounds of formula (XXII) or (XXV). Compounds of formula (XXIII) can be obtained from compounds of formula (XXII) as described in the references listed in Scheme 7. Compounds of formula (XXIV) can be obtained from compounds of formula (XXIII) by treatment with reducing agents such as Dibal-H, LiAlH4 or LiBH4 in solvents such as THF or diethyl ether at temperatures ranging from about 0° C. to about 70° C. Compounds of formula (XXVI) can be obtained from compounds of formula (XXIII) by treatment with bases such as aqueous sodium hydroxide, potassium hydroxide and lithium hydroxide in solvents such as water, methanol or THF. Compounds of formula (XXVI) can also be obtained from compounds of formula (XXV) using procedures described in WO 2004074292.
Referring to Scheme 8, where PG1 is a Boc protecting group, compounds of formula (±)-(XXVII) were resolved into individual enantiomers of formula (+)-(XXVII) and (−)-(XXVII) using SFC chromatography on a chiral SFC (CHIRALPAK IC 5 μM 250×20 mm) column using 80% CO2/20% iPrOH as the mobile phase.
Referring to Scheme 9, where PG1 is a Boc protecting group, compounds of formula (XXVIII) are prepared compounds of formula (+)-(XXIX). Compounds of formula (XXVIII) are readily prepared from compounds of formula (+)-(XXVII) by treatment with metal catalyst such as PtO2, Pd/C, or Pd(OH)2 in solvents such as AcOH, MeOH or EtOH under an atmosphere of hydrogen. Compounds of formula (XXIX) are readily prepared from compounds of formula (XXVIII) by reaction with DPPA and TEA in a solvent such as toluene at temperatures ranging from about 0° C. to about 100° C., preferably about 65° C. for a period of about 1 to 8 hours. BnOH is then added to afford a compound of formula (XXIX).
According to Scheme 10, compound (XXXI) is obtained by reaction of compound (XXX) with, for example, DPPA and TEA in a solvent such as toluene at temperatures ranging from about 0° C. to about 100° C., preferably about 65° C. for a period of about 1 to 8 hours, preferably about 4 h. BnOH is then added to afford a compound of formula (XXXI). Compound (XXXII) is obtained from compound (XXXI) by reaction with trimethylphenyl ammonium tribromide at temperatures ranging from about 0° C. to about 23° C., preferably about 0° C. for a period of from 2 to 6 hours, preferably about 4 hours. Compound (XXIII) is obtained from compound (XXXII) by treatment with a base, preferably NaH is a solvent such as DMF. Compound (XXXIV) is obtained from compound (XXXIII) by elimination of HBr with tBuOK in a solvent such as THF in the presence for a period ranging from 2 to 24 hours. Compound (XXXV) is obtained from compound (XXXIV) by hydroboration oxidation by treating the compound (XXXIV) with borane in a solvent such as THF at temperatures ranging from about 0° C. to about 23° C., preferably at about 23° C., for 2 to 12 hours, preferably about 2 hours followed by reaction with, for example, hydrogen peroxide in the presence of a base such as sodium hydroxide.
Referring to Scheme 11, one skilled in the art would recognize that compounds of formula (XLI) may be obtained from compounds of formula (XXXVI) by converging pathways. In one sequence, a compound of formula (XXXVII) is obtained by treating a compound of formula (XXXVI) with R5Cl, where R5 is optionally substituted pyridyl, pyrimidyl, pyrazinyl, pyridazinyl, quinazolinyl, quinoxalinyl, pyrazolyl, benzoxazolyl, imidazopyrazinyl, triazolopyrazinyl. Commercially available or synthetically accessible suitably substituted heteroaryl compounds of formula R5Cl are reacted with compounds of formula (XXXVI), in the presence of a suitably selected tertiary organic or inorganic base such as NaH, Cs2CO3, K2CO3, TEA, iPr2NEt and the like; in a solvent such as DMF, dichloromethane, THF, and the like; at a temperature between room temperature and the reflux temperature of the solvent. In a preferred embodiment the base is NaH and the solvent is DMF. Removal of the tert-butylcarbamate (Boc) in compounds of formula (XXXVII) is accomplished by using methods known to one skilled in the art, such as, HCl, TFA, or p-toluenesulfonic acid, in a solvent such as CH3OH, dioxane, or CH2Cl2. In a preferred embodiment, a compound of formula (XXXVII) is treated with TFA in DCM or HCl to afford a compound of formula (XXXVIII). A compound of formula (XLI) is obtained by treating a compound of formula (XXXVIII) with (R1R2A)CO2H, where R1 is H, alkyl, alkoxy, hydroxyalkylene, OH, halo, phenyl, triazolyl, oxazolyl, isoxazolyl, pyridyl, pyrimidyl, pyrazinyl, pyridazinyl, piperazinyl, pyrazolyl, oxadiazolyl, pyrrolidinyl, thiophenyl, morpholinyl, or dialkylamino and R2 is H, alkyl, alkoxy, or halo. Commercially available or synthetically accessible suitably substituted carboxylic acid compounds of formula (R1R2A)CO2H are combined with compounds of formula (XXXVIII) using under amide coupling methods known to one skilled in the art, such as, CDI, EDCI, HATU, or T3P in a solvent such as THF, DCM, or DMF In a preferred embodiment, a compound of formula (XXXVIII) and (R1R2A)CO2H are treated with EDCI in the presence of HOBT in DMF at ambient temperature to afford a compound of formula (XLI). One skilled in the art would recognize that compounds of formula (XLI) may also be obtained from compounds of formula (XL). Removal of the tert-butylcarbamate (Boc) in compounds of formula (XXXVI) is accomplished by using methods known to one skilled in the art, such as, HCl, TFA, or p-toluenesulfonic acid, in a solvent such as CH3OH, dioxane, or CH2Cl2. In a preferred embodiment, a compound of formula (XXXVI) is treated with TFA in DCM or HCl to afford a compound of formula (XXXIX). A compound of formula (XL) is obtained by treating a compound of formula (XXXIX) with (R1R2A)CO2H. Commercially available or synthetically accessible suitably substituted carboxylic acid compounds of formula (R1R2A)CO2H are combined with compounds of formula (XXXIX) using under amide coupling methods known to one skilled in the art, such as, CDI, EDCI, HATU, or T3P in a solvent such as THF, DCM, or DMF In a preferred embodiment, a compound of formula (XXXIX) and (R1R2A)CO2H are treated with EDCI in the presence of HOBT in DMF at ambient temperature to afford a compound of formula (XL). A compound of formula (XLI) is obtained by treating a compound of formula (XL) with R5Cl. Commercially available or synthetically accessible suitably substituted heteroaryl compounds of formula R5Cl are reacted with compounds of formula (XL), in the presence of a suitably selected tertiary organic or inorganic base such as NaH, Cs2CO3, K2CO3, TEA, iPr2NEt and the like; in a solvent such as DMF, dichloromethane, THF, and the like; at a temperature between room temperature and the reflux temperature of the solvent. In a preferred embodiment the base is NaH and the solvent is DMF to provide compounds of formula (XLI).
Referring to Scheme 12, compounds of formula (XLVI) were synthesized from compounds of formula (XLII) where PG1 is Boc, PG3 is Cbz, Z is O or NH and n is 0 or 1. PG3 was removed when compound of formula (XLII) was treated with, for example, a Pd catalyst such as 10 wt % Pd/C wet Degussa under an atmosphere of H2 in a solvent such as EtOH to give compound of formula (XLIII). Compounds of formula (XLIV) were obtained from compounds of formula (XLIII) using compounds of formula (XLVIII) in a suitable solvent such as DMSO or DMF in the presence of a base such as K2CO3 at a temperature of about 70° C. Compounds of formula (XLIV) could also be obtained when compounds of formula (XLIII) and (XLVIII) were treated with a Pd catalyst such as Pd(OAc)2, a ligand such as racemic BINAP, a base such as sodium tert-butoxide in a solvent such as toluene at a temperature of about 70° C. Compound of formula (XLV) were obtained from compounds of formula (XLIV) when treated with an acid such as HCl in a suitable solvent such as EtOAc or DCM at room temperature. Compound of formula (XLVI) were obtained from compounds of formula (XLV) using compounds of formula (XLVII) in a suitable solvent such as DMF or DCM in the presence of a peptide coupling reagent such as HATU or T3P, a base such as DIPEA at a temperature ranging from room temperature to about 45° C.
Referring to Scheme 13, compounds of formula (L) were obtained from compound of formula (XLIX) using compounds of formula (LI) in a solvent such as DME in the presence of a Pd catalyst such as Pd(PPh3)4, an additive or catalyst such as copper iodide at a temperature ranging from about 120° C. to about 150° C.
Chemistry:
In obtaining the compounds described in the examples below and the corresponding analytical data, the following experimental and analytical protocols were followed unless otherwise indicated.
Unless otherwise stated, reaction mixtures were magnetically stirred at room temperature (rt) under a nitrogen atmosphere. Where solutions were “dried,” they were generally dried over a drying agent such as Na2SO4 or MgSO4, filtered and concentrated. Where mixtures, solutions, and extracts were “concentrated”, they were typically concentrated on a rotary evaporator under reduced pressure. Reactions under microwave irradiation conditions were carried out in a Biotage Initiator or CEM Discover instrument.
Melting point determinations were performed in open capillary tubes on a FP62 or MP50 apparatus (Mettler-Toledo). Melting points were measured with a temperature gradient of 10° C./minute. Maximum temperature was 300° C. The melting point was read from a digital display.
Normal-phase flash column chromatography (FCC) was performed on silica gel (SiO2) using prepackaged cartridges, eluting with the indicated solvents.
Where compounds were purified by “Prep HPLC” the method employed was either:
Preparative reverse-phase high performance liquid chromatography (HPLC) was performed on a Gilson HPLC with an Xterra Prep RP18 (5 m, 30×100 mm, or 50×150 mm) column, and a gradient of 10 to 99% acetonitrile/water (20 mM NH4OH) over 12 to 18 min, and a flow rate of 30 mL/min. or
Preparative reverse-phase high performance liquid chromatography (HPLC) was performed on a Agilent 1100 Series HPLC with an XBridge C18 column (5 m, 30×100 mm), mobile phase of 5% ACN in 20 mM NH4OH (hold for 2 min) then ramp 5-99% ACN over 15 min, hold at 99% ACN for 5 min. and a flow rate of 40 mL/min. or
Preparative reverse-phase high performance liquid chromatography (HPLC) was performed on a Agilent 1100 Series HPLC with an XBridge C18 column (5 m, 50×100 mm), mobile phase of 5% ACN in 20 mM NH4OH (hold for 2 min) then ramp 5-99% ACN over 15 min, hold at 99% ACN for 5 min. and a flow rate of 80 mL/min. or
Preparative reverse-phase high performance liquid chromatography (HPLC) was performed on a Gilson HPLC with an Xterra Prep RP18 (5 μm, 30×100 mm, or 50×150 mm) column, and a gradient of 10 to 99% acetonitrile/water (20 mM NH4OH) over 12 to 18 min, and a flow rate of 30 mL/min.
Analytical chromatography data was acquired using an Agilent 1100 HPLC, with an Inertsil ODS-3 3 mm 4.6×50 mm column, purchased from GL Sciences (Part #1010L050W046). Samples were run using a gradient profile of 10-99% acetonitrile (ACN) in water, each containing 0.05% trifluoroacetic acid (TFA) over 1.6 minutes, then holding at 99% acetonitrile for 0.3 minutes. Flow rate was 5 mL/min and column temperature was set to 50° C. (Method A).
Mass spectra (MS) were obtained on an Agilent series 1100 MSD using electrospray ionization (ESI) in positive mode unless otherwise indicated. Calculated (calcd.) mass corresponds to the exact mass.
Nuclear magnetic resonance (NMR) spectra were obtained on Bruker model DRX spectrometers. The format of the 1H NMR data below is: chemical shift in ppm downfield of the tetramethylsilane reference (multiplicity, coupling constant J in Hz, integration).
Chemical names were generated using ChemDraw Ultra 12.0 (CambridgeSoft Corp., Cambridge, Mass.) or ACD/Name Version 10.01 (Advanced Chemistry Development, Toronto, Ontario, Canada).
Where compounds were purified by “SFC Chromatography” the method employed was either:
On preparative APS 1010 system with autoprep otion from Berger instrument, consisted of two varian SD-1 pumps (walnut creek, CA, USA), one of which was extensively modified to pump CO2, a special pump head heat exchanger, ajulabo FT 401 chiller (labortechnik GmbH, Sellback, Germany), a model SCM 2500 phase separator (berger instruments) with selection valve and set of collection vessels in a Bodan robot. A model Knauer 2500 UV detector with high pressure flow cell (berlin, germany). Sample were applied using a six-port injection valve (Valco, Houston, Tex., USA)) with a 5 ml sample loop and a model YP-300 syringue pump (cavro, san Jose, Calif.). or
On a SFC-PICLAB-PREP 200 (PIC SOLUTION, Avignon, France). Modifier was pump with a model K1800 Knauer (Berlin, germany), with 100 ml Pump Head. The CO2 was pump with 2 lewa pumps (Leonberg Germany). Cooling of the pump head and the CO2 line was achieved by a coil alimented by a Huber chiller (Offenburg/Germany). Sample injections were made using 6 switching valves (Valco, Houston, Tex., USA) and a 5 ml sample loop. The system is managed by a PLC automation system.
To a solution of 3-fluoro-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzonitrile (4.98 g, 19.1 mmol) and 2-bromopyridine (3.85 g, 23 mmol) in THF (96 mL) was added Na2CO3 (6 g, 57.4 mmol) followed by water (43 mL). The reaction mixture was degassed with N2 for 10 minutes. PdCl2(dtbpf) (374 mg, 0.57 mmol) was added and the reaction mixture was stirred at 80° C. for 5 h. The solution was cooled to room temperature and a mixture of EtOAc and water was added. The aqueous was extracted twice with EtOAc and the combined organic layers were dried over MgSO4, filtered and evaporated. The title compound was precipitated by dissolving the residue in a minimum amount of EtOAc and then adding hexanes. The solid was filtered, washed with hexanes and dried to afford the title compound (2.46 g, 64%). MS (ESI) mass calcd. for C11H6FN3, 199.1; m/z found 200.1 [M+H]+. 1H NMR (400 MHz, Chloroform-d) δ 9.02-8.91 (m, 2H), 7.65 (dt, J=7.7, 1.0 Hz, 1H), 7.60-7.52 (m, 1H), 7.51-7.43 (m, 1H), 7.41 (t, J=4.9 Hz, 1H).
Step A: 5-methyl-3-(2H-1,2,3-triazol-2-yl)picolinonitrile. To 3-bromo-5-methylpicolinonitrile (1.5 g, 7.6 mmol) in DMF (19 mL) was added K2CO3 (1.2 g, 8.4 mmol) and 2H-1,2,3-triazole (440 μL, 7.6 mmol). The mixture was heated to 100° C. for 16 h, cooled to rt and extracted with EtOAc (2×). The combined organics were dried (Na2SO4) and concentrated. Purification via silica gel chromatography (5-60% EtOAc in hexanes) gave the title compound (490 mg, 35%) 1H NMR (500 MHz, CDCl3) 8.58-8.53 (m, 1H), 8.29-8.24 (m, 1H), 7.98 (s, 2H), 2.54 (s, 3H) and 5-methyl-3-(1H-1,2,3-triazol-1-yl)picolinonitrile (387 mg, 27%).
Step B: 5-methyl-3-(2H-1,2,3-triazol-2-yl)picolinate. To a solution of the title compound of Step A (489 mg, 2.6 mmol) in EtOH (7 mL) was added 4 N NaOH (660 μL, 2.6 mmol). The mixture was heated at 100° C. for 24 h. The reaction mixture was concentrated in vacuo to a white solid which was used without further purification in subsequent steps. MS (ESI) mass calcd. for C9H8N4O2, 204.1; m/z found 205.0 [M+H]+.
Step A: 5-methyl-3-(1H-1,2,3-triazol-1-yl)picolinonitrile. The title compound was prepared in Intermediate A-19 Step A. 1H NMR (500 MHz, CDCl3) 8.65 (dd, J=1.8, 0.9 Hz, 1H), 8.41 (d, J=1.2 Hz, 1H), 8.18-8.15 (m, 1H), 7.95 (d, J=1.2 Hz, 1H), 2.58 (s, 3H).
Step B: 5-methyl-3-(1H-1,2,3-triazol-1-yl)picolinic acid. Prepared analogous to Intermediate A-19 substituting 5-methyl-3-(2H-1,2,3-triazol-2-yl)picolinonitrile with the title compound of Step A. MS (ESI) mass calcd. for C9H8N4O2, 204.1; m/z found 205.0 [M+H]+.
Step A: 6-methyl-3-(2H-1,2,3-triazol-2-yl)picolinonitrile. To 3-bromo-5-methylpicolinonitrile (2.2 g, 11 mmol) in DMF (28 mL) was added K2CO3 (1.7 g, 12 mmol) and 2H-1,2,3-triazole (650 μL, 11 mmol). The mixture was heated to 100° C. for 36 h, cooled to rt and extracted with EtOAc. The combined organics were dried (Na2SO4) and concentrated. Purification via silica gel chromatography (10-100% EtOAc in hexanes) gave the title compound (1 g, 48%).
Step B: 6-methyl-3-(2H-1,2,3-triazol-2-yl)picolinic acid. To a solution of the title compound of Step A (730 mg, 4 mmol) in EtOH (10 mL) was added 4 N NaOH (1 mL, 4 mmol). The mixture was heated at 100° C. for 24 h. The reaction mixture was concentrated in vacuo to a white solid which was used without further purification in subsequent steps.
Step A: ethyl 3-hydroxyisoquinoline-4-carboxylate. To a suspension of ethyl 3-aminoisoquinoline-4-carboxylate (583 mg, 2.70 mmol) in 6.8 mL of H2SO4 5N cooled to 0° C. was added sodium nitrite (223 mg, 3.24 mmol, dissolved in 1 mL of water). The reaction mixture was stirred at 0° C. for 2.5 h and then NaOH(aq) 1N was added until pH=7. The aqueous phase was extracted twice with DCM and the combined organic phases were dried over MgSO4, filtered and evaporated to give the title compound of Step A which was used without further purification in the next step (583 mg, 99%). MS (ESI) mass calcd. for C12H11NO3, 217.1; m/z found 218.1 [M+H]+.
Step B: ethyl 3-ethoxyisoquinoline-4-carboxylate. To the title compound of Step A (583 mg, 2.68 mmol) in THF (13 mL) was added triphenylphosphine (1.06 g, 4.03 mmol), ethanol (0.24 mL, 4.03 mmol) and DIAD (0.79 mL, 4.03 mmol). The reaction mixture was stirred at room temperature for 16 h and then the solvent was evaporated. The crude was purified via silica gel chromatography (0-30% EtOAc in hexanes) to afford the title compound of Step B (498 mg, 76%). MS (ESI) mass calcd. for C14H15NO3, 245.1; m/z found 246.1 [M+H]+. 1H NMR (500 MHz, Chloroform-d) δ 8.97 (s, 1H), 7.91-7.82 (m, 2H), 7.65-7.60 (m, 1H), 7.42-7.36 (m, 1H), 4.59-4.48 (m, 4H), 1.48-1.39 (m, 6H).
Step C: 3-ethoxyisoquinoline-4-carboxylic acid. The title compound of Step B (492 mg, 2 mmol) dissolved in MeOH (15 mL) was added NaOH(aq) 2M (2.5 mL). The reaction mixture was stirred at 60° C. for 16 h and then NaOH(aq) 4M (2 mL) was added and the mixture was stirred at 70° C. for 4 h. MeOH was evaporated and the aqueous phase was cooled to 0° C. and acidified with the addition of HCl(aq) 6N. The solid was filtered, washed with cold water and dried to afford the title compound (285 mg, 65%). MS (ESI) mass calcd. for C12H11NO3, 217.1; m/z found 218.1 [M+H]+. 1H NMR (400 MHz, DMSO-d6) δ 13.36 (s, 1H), 9.15 (s, 1H), 8.13-8.06 (m, 1H), 7.82-7.70 (m, 2H), 7.54-7.47 (m, 1H), 4.50 (q, J=7.0 Hz, 2H), 1.35 (t, J=7.0 Hz, 3H).
Prepared analogous to Intermediate A-19 substituting 2-bromo-6-methyl-3-(2H-1,2,3-triazol-2-yl)pyridine with 4-(difluoromethoxy)-2-fluorobenzonitrile.
Step A: methyl 3-methyl-2-(pyrimidin-2-yl)benzoate. In a microwave vial was dissolved methyl 3-methyl-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzoate (619 mg, 2.24 mmol) and 2-chloropyrimidine (314 mg, 2.69 mmol) in 2-MeTHF (10 mL). Na2CO3 (713 mg, 6.73 mmol) was then added followed by water (3.4 mL) and the reaction mixture was degassed with N2 for 45 minutes. Pd(dppf)Cl2 (66 mg, 0.09 mmol) and the reaction mixture was heated at 75° C. for 28 h. More Pd(dppf)Cl2 (33 mg, 0.045 mmol) was added and the reaction mixture was heated at 150° C. for 3.5 h. The mixture was filtered through a pad of celite and rinsed with EtOAc and water. The layers were separated and the aqueous was extracted once with EtOAc. The combined organic layers were dried over MgSO4, filtered and evaporated. The crude was purified via silica gel chromatography (0-50% EtOAc in hexanes) to afford the title compound (116 mg, 23%). MS (ESI) mass calcd. for C13H12N2O2, 228.1; m/z found 229.1 [M+H]+. 1H NMR (500 MHz, CDCl3) 8.95-8.76 (m, 2H), 7.99-7.75 (m, 1H), 7.50-7.44 (m, 1H), 7.43-7.37 (m, 1H), 7.32-7.24 (m, 1H), 3.64 (s, 3H), 2.15 (s, 3H).
Step B: 3-methyl-2-(pyrimidin-2-yl)benzoic acid. Prepared analogous to intermediate A-31 step B to give title compound. MS (ESI) mass calcd. for C12H10N2O2, 214.1; m/z found 215.1 [M+H]+.
Step A: Methyl 2-methoxy-6-(pyrimidin-2-yl)benzoate. In a microwave vial was dissolved methyl 2-methoxy-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzoate (500 mg, 1.71 mmol), commercially available from Combi-Blocks (CAS #1146214-77-8), and 2-bromopyrimidine (344 mg, 2.05 mmol) in THF (8.5 mL). Na2CO3 (544 mg, 5.14 mmol) was then added followed by water (4 mL) and the reaction mixture was degassed with N2 for 10 minutes. PdCl2(dtbpf) (45 mg, 0.069 mmol) was then added and the reaction mixture was heated at 80° C. for 4 h. The mixture was cooled to room temperature and water and EtOAc added. The reaction mixture was extracted with EtOAc (3×). The combined organic layers were dried over Na2SO4, filtered, and concentrated. The crude was purified via silica gel chromatography (0-70% EtOAc in hexanes) to afford the title compound (265 mg, 63%). MS (ESI) mass calcd. for C13H12N2O3, 244.1; m/z found 245.1 [M+H]+. 1H NMR (400 MHz, Chloroform-d) 8.78 (d, J=4.9 Hz, 2H), 7.99 (dd, J=7.9, 0.9 Hz, 1H), 7.49 (t, J=8.1 Hz, 1H), 7.19 (t, J=4.8 Hz, 1H), 7.09 (dd, J=8.3, 0.9 Hz, 1H), 3.90 (s, 3H), 3.89 (s, 3H).
Step B: 2-methoxy-6-(pyrimidin-2-yl)benzoic acid. To a solution of the title compound of Step A (265 mg, 1.09 mmol) in THF (4 mL) was added 2 N NaOH (2 mL). The mixture was heated at 50° C. for 72 h. The reaction mixture was concentrated in vacuo to a white solid which was used without further purification in subsequent steps. MS (ESI) mass calcd. for C12H10N2O3, 230.1; m/z found 231.1 [M+H]+. 1H NMR (500 MHz, DMSO-d6) 12.63 (s, 1H), 8.86 (d, J=4.9 Hz, 2H), 7.77 (dd, J=7.9, 1.0 Hz, 1H), 7.51 (t, J=8.1 Hz, 1H), 7.45 (t, J=4.9 Hz, 1H), 7.25 (dd, J=8.4, 1.0 Hz, 1H), 3.83 (s, 3H).
Step A: 7-methoxyquinoline-8-carboxylic acid. In 1 g separate batches a mixture of 2-amino-6methoxybenzoic acid (11 g, 66 mmol) and acrolein (4.8 mL, 72 mmol) in 1,4-dioxane (66 mL) was heated in a microwave reactor for 20 min at 200° C. After combining the reactions, the mixture was concentrated and purified via silica gel chromatography (0-10% MeOH in DCM) to give the title compound (2.8 g, 20%). MS (ESI) mass calcd. for C11H19NO3, 203.1; m/z found 204.0 [M+H]+.
Step B: 7-hydroxyquinoline-8-carboxylic acid. The title compound of Step A (2.9 g, 14.1 mmol) in HBr (14 mL) was heated at 90° C. for 1 h. The mixture was then concentrated washed with PhCH3 and used without further purification in subsequent steps.
Step C: ethyl 7-ethoxyquinoline-8-carboxylate. To the title compound of Step B (800 mg, 3.9 mmol) and K2CO3 (1.4 g, 10.4 mmol) in DMF (15 mL) was added iodoethane (560 μL, 6.9 mmol). After stirring overnight at rt, the reaction was concentrated and purified via silica gel chromatography (0-30% EtOAc in hexanes) to give the title compound. MS (ESI) mass calcd. for C14H15NO3, 245.1; m/z found 246.0 [M+H]+.
Step D: 7-ethoxyquinoline-8-carboxylic acid. To the title compound of Step C (1.3 g, 5.4 mmol) in THF (22 mL) and H2O (11 mL) was added LiOH hydrate (675 mg, 16.5 mmol) and MeOH. The mixture was heated at 67° C. for 12 h. Additional LiOH hydrate (675 mg, 16.5 mmol) was added and the heating was continued at 70° C. for 1 days. Additional LiOH hydrate (1.4 g, 33 mmol) was added and the heating was continued at 75° C. for 1 day. The reaction was allowed to cool to rt, acidified to pH=3 with 1N HCl (aq) and concentrated. Purification via prep HPLC gave the title compound (1 g, 84%). MS (ESI) mass calcd. for C12H11NO3, 217.1; m/z found 218.0 [M+H]+.
Step A: Ethyl 2-(1,4-dimethyl-1H-pyrazol-5-yl)-6-methoxybenzoate. In a microwave vial was dissolved ethyl 2-bromo-6-methoxybenzoate (500 mg, 1.54 mmol) and 1,4-dimethyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (377 mg, 1.70 mmol) in DME (10 mL) and water (2 mL). Na2CO3 (259 mg, 3.09 mmol) was then added followed by Pd(PPh3)4 (89 mg, 0.077 mmol) and the reaction mixture was degassed with N2 for 10 minutes. The reaction mixture was then heated at 100° C. for 1 h in the microwave. The mixture was cooled to room temperature, filtered through Celite and washed with EtOAc and DCM. The crude solution was concentrated in vacuo and directly purified via silica gel chromatography (10-80% EtOAc in hexanes) to afford the title compound (402 mg, 95%). MS (ESI) mass calcd. for C15H18N2O3, 274.1; m/z found 275.2 [M+H]+. 1H NMR (400 MHz, Chloroform-d) 7.45 (dd, J=8.4, 7.6 Hz, 1H), 7.29 (s, 1H), 7.04 (dd, J=8.5, 0.9 Hz, 1H), 6.84 (dd, J=7.6, 0.9 Hz, 1H), 4.07 (qd, J=7.2, 1.5 Hz, 2H), 3.90 (s, 3H), 3.61 (s, 3H), 1.86 (s, 3H), 1.01 (t, J=7.1 Hz, 3H).
Step B: 2-(1,4-dimethyl-1H-pyrazol-5-yl)-6-methoxybenzoic acid. Prepared analogous to intermediate A-28 step B to give title compound. MS (ESI) mass calcd. for C13H14N2O3, 246.1; m/z found 247.2 [M+H]+. 1H NMR (500 MHz, DMSO-d6) 7.50 (dd, J=8.5, 7.6 Hz, 1H), 7.25 (s, 1H), 7.21 (dd, J=8.5, 0.9 Hz, 1H), 6.85 (dd, J=7.6, 0.9 Hz, 1H), 3.84 (s, 3H), 3.49 (s, 3H), 1.79 (s, 3H).
Step A: ethyl 3-methyl-2-(oxazol-2-yl)benzoate. In a microwave vial was dissolved ethyl 2-iodo-3-methylbenzoate (627 mg, 2.16 mmol) and 2-(tributylstannyl)oxazole (0.54 mL, 0.07 mmol) in DME (2.59 mL). The solution was degassed with N2 for 5 minutes then CuI (21 mg, 0.11 mmol) and Pd(PPh3)4 (125 mg, 0.11 mmol) were added. The reaction was purged with N2 and heated at 150° C. for 1 h. The reaction was cooled to rt, filtered through a pad of celite and purified via silica gel chromatography (0-40% EtOAc in hexanes) to give the title compound of step A (333 mg, 67%). MS (ESI) mass calcd. for C13H13NO3, 231.1; m/z found 232.1 [M+H]+. 1H NMR (500 MHz, Chloroform-d) 7.89-7.82 (m, 1H), 7.79 (d, J=0.8 Hz, 1H), 7.48-7.43 (m, 2H), 7.30 (d, J=0.9 Hz, 1H), 4.17 (q, J=7.1 Hz, 2H), 2.27 (s, 3H), 1.18 (t, J=7.1 Hz, 3H).
Step B: 3-methyl-2-(oxazol-2-yl)benzoic acid. To the title compound of step A (166 mg, 0.72 mmol) was added MeOH (7.2 mL) and 1M NaOH(aq) (7.2 mL). MeOH was evaporated and then 1 M HCl(aq) was added. To the solution was added DCM and the aqueous was extracted with DCM (3×). The combined organic layers were dried over MgSO4, filtered and evaporated to give the title compound (145 mg). MS (ESI) mass calcd. for C11H9NO3, 203.1; m/z found 204.1 [M+H]+. 1H NMR (400 MHz, DMSO-d6) δ 8.20 (s, 1H), 7.79-7.68 (m, 1H), 7.65-7.49 (m, 2H), 7.35 (s, 1H), 4.34 (s, 1H), 2.20 (s, 3H).
Step A: 4-methyl-3-(2H-1,2,3-triazol-2-yl)picolinonitrile. In a microwave vial was dissolved 2H-1,2,3-triazole (0.22 mL, 3.8 mmol) and CuI (26 mg) in DMF (4 mL). The reaction mixture was degassed with N2 and 3-bromo-4-methylpicolonitrile (300 mg, 1.5 mmol) was added followed by trans-N,N′-dimethyl-1,2-cyclohexanediamine (41 μL, 0.3 mmol) and Cs2CO3 (844 mg, 2.6 mmol). The reaction mixture was heated at 120° C. for 1 h in a microwave reactor. Then H2O was added and the mixture extracted with EtOAc. The combined organic layers were dried (MgSO4). Purification via silica gel chromatography (0-50% EtOAc in heptane) gave the title compound (112 mg, 27%). MS (ESI) mass calcd. for C9H7N5, 185.2; m/z found 186 [M+H]+.
Step B: 4-methyl-3-(2H-1,2,3-triazol-2-yl)picolinic acid. Prepared analogous to Intermediate A-19 substituting 5-methyl-3-(2H-1,2,3-triazol-2-yl)picolinonitrile with the title compound of Step A. The reaction mixture was acidified to pH=4 before concentrating. MS (ESI) mass calcd. for C11H9NO3, 203.1; m/z found 204.1 [M+H]+.
Step A: ethyl 3-(2H-1,2,3-triazol-2-yl)quinoline-2-carboxylate. Prepared analogous to Intermediate A-40 Step A substituting 2-bromo-4-methylbenzoic acid with ethyl 3-iodoquinoline-2-carboxylate (WO 2011093365) in <10% yield. MS (ESI) mass calcd. for C14H12N4O2, 268.3; m/z found 269.0 [M+H]+.
Step B: 3-(2H-1,2,3-triazol-2-yl)quinoline-2-carboxylic acid. To the title compound of Step A (134 mg, 0.5 mmol) in MeOH (1 mL) was added aqueous 2M NaOH (1 mL). After 1 h at rt, the reaction was heated to 50° C. for 1 h, cooled to rt, acidified with 1N HCl, concentrated and used in subsequent steps without further purification. MS (ESI) mass calcd. for C12H8N4O2, 240.2; m/z found 241.0 [M+H]+.
Step A: 4-methyl-2-(2H-1,2,3-triazol-2-yl)benzoic acid and 4-methyl-2-(1H-1,2,3-triazol-1-yl)benzoic acid. In a microwave vial was dissolved 2H-1,2,3-triazole (0.34 mL, 5.81 mmol) and CuI (40 mg, 0.21 mmol) in DMF (5 mL). The reaction mixture was degassed with N2 for 10 minutes and 2-bromo-4-methylbenzoic acid (500 mg, 2.33 mmol) was added followed by trans-N,N′-dimethyl-1,2-cyclohexanediamine (62 μL, 0.40 mmol) and Cs2CO3 (1.29 g, 3.95 mmol). The reaction mixture was stirred at 100° C. for 20 minutes using a microwave oven before being partitioned between water, HCl(aq) (pH=3) and EtOAc. The organic layer was dried over MgSO4, filtered and evaporated to give the crude product mixture which was used in the next step without any further purification.
Step B: methyl 4-methyl-2-(2H-1,2,3-triazol-2-yl)benzoate. To the title compound of step A (945 mg, 4.65 mmol) in DMF (28 mL) was added K2CO3 (1.3 g, 9.3 mmol) and iodomethane (0.3 mL, 4.7 mmol). The reaction mixture was stirred at room temperature for 16 h under N2. The solvent was evaporated and the residue was dissolved with a saturated solution of NaHCO3. The aqueous phase was extracted with DCM and the organic layer was dried over MgSO4, filtered and evaporated. The crude material was purified via silica gel chromatography (0% to 30% EtOAc/heptane) to afford the title compound (470 mg, 47%).
Step C: Prepared analogous to Intermediate A-31 step B substituting ethyl 3-methyl-2-(oxazol-2-yl)benzoate with the title compound of Step B and used without further purification in subsequent steps.
Step A: 3-bromo-6-methylpicolinic acid. To 3-bromo-6-methylpicolinonitrile (4 g, 20.3 mmol) in EtOH (40 mL) in a sealed tube was added aqueous 4M NaOH (15 mL). The reaction was heated at 90° C. for 24 h. Additional aqueous 4M NaOH was added and heating continued at 90° C. for 24 h. The reaction was cooled to rt, acidified to pH=3 with 1N HCl (aq), concentrated and used without further purification in subsequent steps. MS (ESI) mass calcd. for C7H6BrNO2, 216.0; m/z found 218 [M+H]+.
Step B: Methyl 3-bromo-6-methylpicolinate. To the title compound of step A (10.3 g, 20 mmol) in MeOH (50 mL) was added thionyl chloride (4.4 mL, 60 mmol). The reaction was heated at reflux overnight, cooled to rt and concentrated. Purification via silica gel chromatography (0-15% EtOAc in heptane) gave the title compound (1.9 g, 40%). MS (ESI) mass calcd. for C8H8BrNO2, 230.1; m/z found 232 [M+H]+.
Step C: 3-methyl-2-(tributylstannyl)pyridine. To 2-bromo-3-methylpyridine (1.3 mL, 11.7 mmol) in THF (35 mL) at −78° C. was added n-BuLi (2.5 M in hexanes, 5.6 mL, 14 mmol). After 30 min, tri-n-butyltin chloride (3.8 mL, 14 mmol) was added. After 1 h at −78° C., the reaction was allowed to warm to rt. EtOAc was added and the reaction mixture was washed with 10% aq KF. The organic layer was dried (MgSO4). Purification via silica gel chromatography (0-15% EtOAc in heptane) gave the title compound (1.2 g, 27%). MS (ESI) mass calcd. for C18H33NSn, 382.2; m/z found 384.0 [M+H]+.
Step D: methyl 3,6′-dimethyl-[2,3′-bipyridine]-2′-carboxylate. To the title compound of step B (509 mg, 2.2 mmol) and the title compound of step C (1.1 g, 2.9 mmol) in PhCH3 (6.6 mL) was added Pd(PPh3)4 (225 mg, 0.2 mmol). The reaction was degassed with N2 and heated at 150° C. for 1.5 h using microwave reactor. The reaction was cooled to rt, diluted with H2O and extracted with EtOAc. The organic layer was dried (MgSO4). Purification via silica gel chromatography (0-100% EtOAc in heptane) gave the title compound (101 mg, 18%). MS (ESI) mass calcd. for C14H14N2O2, 242.3; m/z found 243 [M+H]+.
Step E: 3,6′-dimethyl-[2,3′-bipyridine]-2′-carboxylic acid. Prepared analogous to intermediate A-33 step B substituting ethyl 3-(2H-1,2,3-triazol-2-yl)quinoline-2-carboxylate with the title compound of step D. MS (ESI) mass calcd. for C13H12N2O2, 228.2; m/z found 229 [M+H]+.
Prepared analogous to Intermediate A-31 substituting ethyl 2-iodo-3-methylbenzoate with methyl 3-iodo-6-methylpicolinate. MS (ESI) mass calcd. for C10H8N2O3, 204.2; m/z found 161 [M-CO2]+.
Prepared as described in as in WO 2004/074 292 A1. 1H NMR (CDCl3): 4.54 (d, J=4.6 Hz, 1H), 4.33-4.24 (m, 1H), 2.61-2.18 (m, 4H), 1.90-1.71 (m, 2H), 1.68-1.57 (m, 1H), 1.56-1.35 (m, 10H).
The title compounds were obtained by chiral SFC (CHIRALPAK IC 5 μM 250×20 mm) resolution of Intermediate B-3 (17 g) using 80% CO2/20% iPrOH as the mobile phase to give (−)-B-3 enantiomer A (7.5 g, 1st eluting enantiomer) and enantiomer (+)-B3 (7.3 g, 2nd eluting enantiomer).
Intermediate (−)-B-2: (−)-2-benzyl 7-tert-butyl-7-azabicyclo[2.2.1]heptane-2,7-dicarboxylate. Enantiomer A, [α]D25 −25.2 (c 2.8, CHCl3).
Intermediate (+)-B-2: (+)-2-benzyl 7-tert-butyl-7-azabicyclo[2.2.1]heptane-2,7-dicarboxylate. Enantiomer B, [α]D25 +25.0 (c 2.8, CHCl3). 1H NMR (CDCl3): 7.39-7.30 (m, 5H), 5.19-5.08 (m, 2H), 4.55 (s, 1H), 4.30 (s, 1H), 2.59 (dd, J=8.9, 5.0 Hz, 1H), 2.36-2.24 (m, 1H), 1.90-1.70 (m, 2H), 1.68-1.57 (m, 1H), 1.52-1.34 (m, 11H).
To intermediate (+)-B-2 (3.5 g, 10.6 mmol) in EtOH (100 mL) was added 10 wt % Pd/C wet Degussa (750 mg). The reaction was purged with N2 followed by H2, then allowed to proceed under an atmosphere of H2 (balloon). Upon completion, the reaction was filtered and concentrated to give the title compound (2.4 g, 94%) that was used without further purification. 1H NMR (CDCl3): 4.62-4.52 (m, 1H), 4.35-4.26 (m, 1H), 2.59 (ddd, J=8.9, 5.0, 1.5 Hz, 1H), 2.29-2.19 (m, 1H), 1.91-1.71 (m, 2H), 1.68-1.58 (m, 1H), 1.54-1.35 (m, 11H).
To intermediate B-3 (2.4 g, 9.9 mmol) in PhCH3 (32 mL) was added TEA (1.5 mL, 10.9 mmol). After heating in an oil bath to 70° C., DPPA (2.4 mL, 10.9 mmol) in PhCH3 (3 mL) was added. After 1 h, BnOH (1.0 g, 9.5 mmol) was added and the oil bath temperature increased to 90° C. After an additional 18 h, the reaction was cooled to rt, diluted with EtOAc and washed with saturated NaHCO3 (aq). The aqueous layer was extracted with EtOAc (1×). The combined organics were washed with brine and dried (Na2SO4). Purification via silica gel chromatography (10-50% EtOAc in hexanes) gave the title compound (2.8 g, 78%). 1H NMR (CDCl3): 7.39-7.28 (m, 5H), 5.20-4.84 (m, 3H), 4.30-4.06 (m, 3H), 3.86-3.68 (m, 1H), 1.93 (dd, J=13.4, 8.1 Hz, 1H), 1.85-1.63 (m, 2H), 1.54-1.29 (m, 11H).
To intermediate B-4 (400 mg, 1.2 mmol) in EtOH (5 mL) was added 10 wt % Pd/C wet Degussa (85 mg). The reaction was purged with N2 followed by H2, then allowed to proceed under an atmosphere of H2 (balloon). Upon completion, the reaction was filtered and concentrated to give the title compound (244 mg, 99%) that was used without further purification. MS (ESI) mass calcd. for C11H20N2O2, 212.1; m/z found 213.1 [M+H]+. [α]D25 +9.8 (c 4.9, CHCl3) 1H NMR (CDCl3): 4.25-4.13 (m, 1H), 3.94-3.82 (m, 1H), 2.96 (dd, J=7.8, 3.0 Hz. 1H), 1.85-1.25 (m, 15H).
Prepared analogous to intermediate B-5 substituting intermediate B-4 with (±)-7-(tert-butoxycarbonyl)-7-azabicyclo[2.2.1]heptane-2-carboxylic acid (intermediate B-1).
Prepared analogous to intermediate B-5 substituting enantiomer (1S,2R,4R)-2-benzyl 7-tert-butyl 7-azabicyclo[2.2.1]heptane-2,7-dicarboxylate (intermediate (+)-B-2) with enantiomer (1R,2S,4S)-2-benzyl 7-tert-butyl-7-azabicyclo[2.2.1]heptane-2,7-dicarboxylate (intermediate (−)-B-2).
To intermediate (+)-B-2 (504 mg, 1.5 mmol) in THF (12 mL) at 0° C. was added Dibal-H (1M in THF, 4.6 mL). After 1 h, additional Dibal-H was added. The reaction allowed to warm to rt and quenched with Rochelle's Salt (20 wt %). EtOAc was added and the mixture allowed to stir until 2 clear layers had formed. The aqueous layer was extracted with EtOAc (2×). The combined organics were washed with brine and dried (Na2SO4). Purification via silica gel chromatography (10-50% EtOAc in hexanes) gave the title compound (171 mg, 49%). MS (ESI) mass calcd. for C12H21NO3, 227.2; m/z found 228.2 [M+H]+, 172.2 [M−55]+. 1H NMR (CDCl3): 4.26-4.12 (m, 2H), 3.45-3.32 (m, 2H), 3.00-2.04 (m, 1H). 1.95-1.90 (m, 1H), 1.83-1.73 (m, 2H), 1.53-1.37 (m, 12H), 1.32-1.28 (m, 1H).
As in Org. Syn., 1997, 74, 212, Tet. Lett. 1997, 38, 6829 and Biorg. Med. Chem. Lett. 2006, 14, 8219 1H NMR (CDCl3): 4.25-4.13 (m, 2H), 3.47-3.32 (m, 2H), 1.98-1.68 (m, 4H), 1.56-1.26 (m, 13H).
Step A: (1S,2R,4R)-tert-butyl 2-((pyridin-2-yloxy)methyl)-7-azabicyclo[2.2.1]heptane-7-carboxylate. To intermediate B-9 (170 mg, 0.75 mmol) in DMF (3 mL) at 0° C. was added NaH (36 mg, 60 wt % in mineral oil, 0.9 mmol). After 30 min, 2-fluoropyridine (102 mg, 1.0 mmol) in DMF (0.5 mL) was added dropwise and the 0° C. ice bath was removed. The flask was then heated to 90° C. in an oil bath. After 2 h, ½ saturated NH4Cl was added and the reaction extracted with EtOAc (2×). The combined organics were washed with brine and dried (Na2SO4). Purification via silica gel chromatography (5-30% EtOAc in hexanes) gave the title compound (172 mg, 76%) as a white solid. MS (ESI) mass calcd. for C17H24N2O3, 304.2; m/z found 305.1 [M+H]+. 1H NMR (CDCl3): 8.13 (dd, J=5.1, 2.0 Hz, 1H), 7.55 (ddd, J=8.7, 7.1, 2.0 Hz, 1H), 6.84 (dd, J=7.0, 5.0 Hz, 1H), 6.73 (d, J=8.3 Hz, 1H), 4.35-4.15 (m, 2H), 4.15-3.99 (m, 2H), 2.26-2.14 (m, 1H), 1.90-1.68 (m, 2H), 1.64-1.55 (m, 1H), 1.54-1.31 (m, 12H).
Step B: (1S,2R,4R)-tert-butyl-2-((pyridin-2-yloxy)methyl)-7-azabicyclo[2.2.1]heptane-7-carboxylate. To the title compound from Step A (130 mg, 0.4 mmol) in EtOAc was added 4M HCl in dioxane. After 3 h, the reaction was concentrated, neutralized with 5% Na2CO3 and extracted with DCM. The combined organics were dried (Na2SO4) to give the title compound from step B as a white solid that was used without further purification. MS (ESI) mass calcd. for C12H16N2O, 204.1; m/z found 205.1 [M+H]+.
Step C: (5-fluoro-2-(pyrimidin-2-yl)phenyl)((1S,2R,4R)-2-((pyridin-2-yloxy)methyl)-7-azabicyclo[2.2.1]heptan-7-yl)methanone. To the title compound of Step B (50 mg, 0.18 mmol) in DMF (1.4 mL) was added DIPEA (0.078 mL, 0.45 mmol), intermediate A-7 (43 mg, 0.2 mmol) and HATU (75 mg, 0.2 mmol). Upon completion of the reaction, purification was performed using Agilent prep method A to give the title compound. MS (ESI) mass calcd. for C23H21FN4O2, 404.2; m/z found 405.2 [M+H]+. 1H NMR (CDCl3): 8.78 (d, J=4.9 Hz, 1H), 8.71 (d, J=4.8 Hz, 1H), 8.26-8.21 (m, 2H), 7.60-7.50 (m, 1H), 7.23-7.00 (m, 3H), 6.90-6.82 (m, 1H), 6.78-6.71 (m, 0.5H), 6.59-6.51 (m, 0.5H), 4.88-4.78 (m, 1H), 4.26-4.09 (m, 1H), 4.09-3.95 (m, 1H), 3.92-3.79 (m, 1H), 2.39-2.18 (m, 1H), 2.04-1.86 (m, 1H), 1.81-1.31 (m, 5H).
Prepared analogous to Example 1 substituting intermediate B-9 with intermediate B-10, 5-fluoro-2-(pyrimidin-2-yl)benzoic acid with intermediate A-9 and HATU with HBTU to give the title compound. MS (ESI) mass calcd. for C23H23N5O2, 401.2; m/z found 402.2 [M+H]+. 1H NMR (DMSO-D6): 8.92 (d, J=4.9 Hz, 1H), 8.84 (d, J=4.9 Hz, 1H), 8.32 (t, J=8.3 Hz, 1H), 8.24 (dd, J=5.0, 1.4 Hz, 0.5H), 8.15 (dd, J=5.0, 1.5 Hz, 0.5H), 7.76-7.69 (m, 0.5H), 7.69-7.62 (m, 0.5H), 7.52-7.42 (m, 1.5H), 7.34 (d, J=8.1 Hz, 0.5H), 7.05-6.92 (m, 1H), 6.87 (d, J=8.3 Hz, 0.5H), 6.68 (d, J=8.3 Hz, 0.5H), 4.60-4.56 (m, 1H), 4.19 (td, J=10.3, 3.7 Hz, 1H), 4.06 (dt, J=10.4, 5.3 Hz, 1H), 3.86 (t, J=4.0 Hz, 0.5H), 3.77 (d, J=4.1 Hz, 0.5H), 2.56 (s, 1.5H), 2.39-2.15 (m, 1H), 2.06 (s, 1.5H), 1.88-1.33 (m, 6H).
The title compounds were obtained by chiral SFC (CHIRALPAK AD-H 5 μM 250×20 mm) resolution of Example 2 (538 mg) using 70% CO2/30% EtOH as the mobile phase to give enantiomer A (230 mg, 1st eluting enantiomer) and enantiomer B (226 mg, 2nd eluting enantiomer). The enantiomeric purity was confirmed by analytical SFC using a CHIRALPAK AD (250×4.6 mm) and a mobile phase of 70% CO2, 30% EtOH containing 0.3% iPrNH2 over 7 minutes. (Example 3A: >98% single enantiomer, 4.00 min retention time; Example 3B>98% single enantiomer, 5.12 min retention time). Example 3A: MS (ESI) mass calcd. for C23H23N5O2, 401.2; m/z found 402.1 [M+H]+. 1H NMR (CDCl3): 8.83 (d, J=4.8 Hz, 0.8H), 8.72 (d, J=4.8 Hz, 1.2H), 8.43-8.37 (m, 1H), 8.19-8.09 (m, 1H), 7.59-7.48 (m, 1H), 7.28 (d, J=8.0 Hz, 0.4H), 7.19-7.16 (m, 1.6H), 6.88-6.81 (m, 1H), 6.76 (dt, J=8.4, 1.0 Hz, 0.4H), 6.57 (dt, J=8.3, 0.9 Hz, 0.6H), 4.92-4.84 (m, 1H), 4.38-4.23 (m, 1H), 4.17 (ddd, J=15.4, 10.3, 5.7 Hz, 1H), 3.97-3.87 (m, 1H), 2.62 (s, 1H), 2.39-2.18 (m, 2.5H), 2.11-1.81 (m, 2H), 1.74 (dd, J=12.3, 8.6 Hz, 0.5H), 1.68-1.36 (m, 4H).
MS (ESI) mass calcd. for C23H23N5O2, 401.2; m/z found 402.1 [M+H]+.
Prepared analogous to Example 1 substituting intermediate B-9 with intermediate B-10, intermediate A-7 with intermediate A-21 and HATU with HBTU to give the title compound. MS (ESI) mass calcd. for C21H22N6O2, 390.2; m/z found 391.2 [M+H]+. 1H NMR (500 MHz, CDCl3): 8.20-8.07 (m, 2H), 7.84-7.75 (m, 2H), 7.61-7.49 (m, 1H), 7.31 (d, J=8.4 Hz, 0.4H), 7.19 (d, J=8.4 Hz, 0.6H), 6.87-6.83 (m, 1H), 6.76 (dt, J=8.4, 0.9 Hz, 0.4H), 6.57 (dt, J=8.3, 0.9 Hz, 0.6H), 4.91-4.81 (m, 1H), 4.32-4.07 (m, 2H), 3.96-3.84 (m, 1H), 2.62 (s, 1.2H), 2.40-2.17 (m, 2.8H), 2.13-1.94 (m, 1H), 1.94-1.68 (m, 1.8H), 1.68-1.37 (m, 3.2H).
The title compounds were obtained by chiral SFC (CHIRALPAK AD-H 5 μM 250×20 mm) resolution of Example 4 (555 mg) using 70% CO2/30% EtOH as the mobile phase to give enantiomer A (264 mg, 1st eluting enantiomer) and enantiomer B (248 mg, 2nd eluting enantiomer). The enantiomeric purity was confirmed by analytical SFC using a CHIRALPAK AD (250×4.6 mm) and a mobile phase of 70% CO2, 30% EtOH containing 0.3% iPrNH2 over 7 minutes. (Example 5A: >98% single enantiomer, 2.80 min retention time; Example 5B>98% single enantiomer, 3.90 min retention time). Example 5A: MS (ESI) mass calcd. for C21H22N6O2, 390.2; m/z found 391.2 [M+H]+. Example 5B: MS (ESI) mass calcd. for C21H22N6O2, 390.2; m/z found 391.2 [M+H]+.
Prepared analogous to Example 1 substituting intermediate A-7 with intermediate A-21. MS (ESI) mass calcd. for C21H22N6O2, 390.2; m/z found 391.2 [M+H]+. [α]D20 +11.4° (c 0.88, CHCl3). 1H NMR (CDCl3): 8.19-8.06 (m, 2H), 7.83-7.73 (m, 2H), 7.61-7.48 (m, 1H), 7.30 (d, J=8.4 Hz, 0.4H), 7.19 (d, J=8.4 Hz, 0.6H), 6.89-6.81 (m, 1H), 6.78-6.73 (m, 0.4H), 6.61-6.52 (m, 0.6H), 4.91-4.81 (m, 1H), 4.32-4.08 (m, 2H), 3.96-3.84 (m, 1H), 2.62 (s, 1.2H), 2.39-2.18 (m, 2.8H), 2.11-1.94 (m, 1.5H), 1.94-1.37 (m, 4.5H).
Step A Method A: (±)-tert-butyl 2-(((5-fluoropyridin-2-yl)oxy)methyl)-7-azabicyclo[2.2.1]heptane-7-carboxylate. Tri-n-butylphosphine (1.8 mL, 7.8 mmol) was added to intermediate B-10 (830 mg, 3.7 mmol) and 5-fluoropyridin-2(1H)-one (500 mg, 4.4 mmol) in THF (11 mL) under nitrogen bubbling at rt. After 5 min of stirring, DEAD (1.4 mL, 7.1 mmol) was added and the mixture was stirred at 50° C. for 18 hours. The mixture was concentrated and purified silica gel chromatography (0-15% EtOAc in Heptane) to give the title compound of step A (590 mg, 45%) as a white solid.
Step A Method B: (±)-tert-butyl 2-(((5-fluoropyridin-2-yl)oxy)methyl)-7-azabicyclo[2.2.1]heptane-7-carboxylate. Prepared analogous to intermediate B-6 substituting intermediate B-9 with (±)-B-9 and 2-fluropyridine with 2,5-difluoropyridine. MS (ESI) mass calcd. for C17H23FN2O3, 322.2; m/z found 323.0 [M+H]+. 1H NMR (CDCl3): 8.02-7.87 (m, 1H), 7.41-7.27 (m, 1H), 6.70 (dd, J=9.1, 3.6 Hz, 1H), 4.39-4.10 (m, 2H), 4.09-3.89 (m, 2H), 2.25-2.09 (m, 1H), 1.91-1.26 (m, 15H).
Step B: (±)-2-(((5-fluoropyridin-2-yl)oxy)methyl)-7-azabicyclo[2.2.1]heptane. Prepared analogous to Example 1 substituting (±)-tert-butyl-2-((pyridin-2-yloxy)methyl)-7-azabicyclo[2.2.1]heptane-7-carboxylate with the title compound from Step A. 1H NMR (CDCl3): 7.96 (d, J=3.1 Hz, 1H), 7.33 (ddd, J=9.0, 7.6, 3.1 Hz, 1H), 6.70 (dd, J=9.0, 3.6 Hz, 1H), 4.09-3.98 (m, 2H), 3.72-3.56 (m, 2H), 2.22-1.99 (m, 3H), 1.72-1.53 (m, 3H), 1.49-1.34 (m, 1H).
Step C: (±)-(2-(((5-fluoropyridin-2-yl)oxy)methyl)-7-azabicyclo[2.2.1]heptan-7-yl)(6-methyl-3-(2H-1,2,3-triazol-2-yl)pyridin-2-yl)methanone. Prepared analogous to Example 1 substituting 5-fluoro-2-(pyrimidin-2-yl)benzoic acid with 6-methyl-3-(2H-1,2,3-triazol-2-yl)picolinic acid. MS (ESI) mass calcd. for C21H21FN6O2, 408.2; m/z found 409.2.
The title compounds were obtained by chiral SFC (CHIRALPAK AD-H 5 μM 250×20 mm) resolution of Example 7 (259 mg) using 70% CO2/30% mixture of EtOH/i-PrOH (50/50 v/v) as the mobile phase to give enantiomer A (72 mg, 1st eluting enantiomer) and enantiomer B (84 mg, 2nd eluting enantiomer). The enantiomeric purity was confirmed by analytical SFC using a CHIRALPAK AD-H (250×4.6 mm) and a mobile phase of 70% CO2, 15% EtOH, 15% iPrOH containing 0.3% iPrNH2 over 7 minutes. (Example 8A: 100% single enantiomer, 3.10 min retention time; Example 8B 100% single enantiomer, 4.58 min retention time). Example 8A: MS (ESI) mass calcd. for C21H21FN6O2, 408.2; m/z found 409.2 [M+H]+. Example 8B: MS (ESI) mass calcd. for C21H21FN6O2, 408.2; m/z found 409.2 [M+H]+.
Prepared analogous to Example 7 substituting intermediate A-21 with intermediate A-37. MS (ESI) mass calcd. for C22H22FN5O2, 407.2; m/z found 408.3 [M+H]+. 1H NMR (CDCl3): 8.03-7.95 (m, 1H), 7.81-7.70 (m, 3H), 7.38-7.11 (m, 3H), 6.72 (dd, J=9.0, 3.6 Hz, 0.5H), 6.52 (dd, J=9.0, 3.5 Hz, 0.5H), 4.86-4.74 (m, 1H), 4.15-3.68 (m, 3H), 2.46-2.37 (s, 1.6H), 2.32-1.78 (m, 4.4H), 1.72-1.22 (m, 4H).
The title compounds were obtained by chiral SFC (CHIRALPAK AD-H 5 μM 250×20 mm) resolution of Example 9 (290 mg) using 60% CO2/40% i-PrOH as the mobile phase to give enantiomer A (140 mg, 1st eluting enantiomer) and enantiomer B (134 mg, 2nd eluting enantiomer). The enantiomeric purity was confirmed by analytical SFC using a CHIRALPAK AD-H (250×4.6 mm) and a mobile phase of 60% CO2, 40% iPrOH containing 0.3% iPrNH2 over 7 minutes. (Example 10A: >98% single enantiomer, 2.42 min retention time; Example 10B>98% single enantiomer, 3.20 min retention time).
To (±)-2-(((5-fluoropyridin-2-yl)oxy)methyl)-7-azabicyclo[2.2.1]heptane (35 mg, 0.2 mmol) in DCM (2.5 mL) was added TEA (25 μL, 0.2 mmol)) followed by 2-(thiophen-2-yl)benzoyl chloride (40 mg, 0.2 mmol) in DCM (2.5 mL). After 18 h, the reaction was diluted with DCM and washed with H2O. The aqueous layer was extracted DCM (1×). The combined organics were dried (Na2SO4). Purification via silica gel chromatography (50-100% EtOAc in hexanes) gave the title compound (37 mg, 57%). MS (ESI) mass calcd. for C23H21FN2O2S, 408.1; m/z found 409.1 [M+H]+.
The title compounds were obtained by chiral SFC (CHIRALPAK AS-H 5 μM 250×20 mm at 40° C.) resolution of Example 11 using 4.2 mL/min MeOH with 0.2% TEA, 37 mL/min CO2 as the mobile phase to give enantiomer A (1st eluting enantiomer) and enantiomer B (2nd eluting enantiomer).
Example 12A: MS (ESI) mass calcd. for C23H21FN2O2S, 408.2; m/z found 409.2 [M+H]+. 1H NMR (CDCl3): 7.97 (dd, J=11.0, 3.0 Hz, 1H), 7.54-7.20 (m, 6.5H), 7.01 (dd, J=5.0, 3.7 Hz, 1.5H), 6.71 (dd, J=9.1, 3.5 Hz, 0.5H), 6.45 (dd, J=9.0, 3.6 Hz, 0.5H), 4.83-4.63 (m, 1H), 4.18-3.38 (m, 3H), 2.70-0.40 (m, 7H).
Example 12B: MS (ESI) mass calcd. for C23H21FN2O2S, 408.2; m/z found 409.2 [M+H]+. 1H NMR (CDCl3): 7.97 (dd, J=11.0, 3.0 Hz, 1H), 7.54-7.20 (m, 6.5H), 7.01 (dd, J=5.0, 3.7 Hz, 1.5H), 6.71 (dd, J=9.1, 3.5 Hz, 0.5H), 6.45 (dd, J=9.0, 3.6 Hz, 0.5H), 4.83-4.63 (m, 1H), 4.18-3.38 (m, 3H), 2.70-0.40 (m, 7H).
Step A: (±)-7-azabicyclo[2.2.1]heptan-2-ylmethanol hydrochloride. To intermediate B-10 (1.1 g, 4.9 mmol) in MeOH (1 mL) was added 4M HCl in dioxane (3 mL). After 6 h, the reaction was concentrated to give the title compound that was used without further purification.
Step B: ((±)-2-(hydroxymethyl)-7-azabicyclo[2.2.1]heptan-7-yl)(5-methyl-2-(2H-1,2,3-triazol-2-yl)phenyl)methanone. To the title compound of Step A in DMF was added TEA, 5-methyl-2-(2H-1,2,3-triazol-2-yl)benzoic acid and HATU. After 18 h, H2O was added and the mix extracted with EtOAc (2×). The combined organics were washed with brine and dried (Na2SO4). Silica gel chromatography (1-7% 2M NH3/MeOH in DCM) gave the title compound (371 mg, 46%). MS (ESI) mass calcd. for C17H20N4O2, 312.2; m/z found 313.2 [M+H]+.
Step C: (±)-(5-methyl-2-(2H-1,2,3-triazol-2-yl)phenyl)(2-(((4-(trifluoromethyl)pyrimidin-2-yl)oxy)methyl)-7-azabicyclo[2.2.1]heptan-7-yl)methanone. To the title compound of step B (33 mg, 0.1 mmol) in THF (2 mL) was added NaOtBu (16 mg, 0.16 mmol). The reaction was then heated at reflux for 15 min and 2-chloro-4-trifluromethylpyrimidine (19 mg, 0.16 mmol) was added. The reaction was heated at reflux temperature for 1 h, cooled to rt, diluted with H2O and extracted with DCM (2×). The combined organics were dried (Na2SO4). Purification via silica gel chromatography (0.5-4% 2M NH3/MeOH in DCM gave the title compound (28 mg, 57%). MS (ESI) mass calcd. for C22H21F3N6O2, 457.2; m/z found 458.2 [M+H]+. 1H NMR (CDCl3): 8.82-8.72 (m, 1H), 7.86-7.69 (m, 3H), 7.36-7.10 (m, 3H), 4.85 (m, 1H), 4.47 (t, J=10.1 Hz, 0.5H), 4.20-3.98 (m, 1.5H), 3.90 (d, J=4.7 Hz, 0.5H), 3.78 (t, J=4.5 Hz, 0.5H), 2.51-2.20 (m, 3H), 2.14-1.82 (m, 2H), 1.78-1.17 (m, 5H).
Prepared analogous to Example 13 substituting 2-chloro-4-(trifluoromethyl)pyrimidine with 2-chloro-5-(trifluoromethyl)pyridine. MS (ESI) mass calcd. for C23H22F3N5O2, 457.2; m/z found 458.2 [M+H]+.
Prepared analogous to Example 13 substituting 2-chloro-4-(trifluoromethyl)pyrimidine with 2-chloro-3-(trifluoromethyl)pyridine. MS (ESI) mass calcd. for C23H22F3N5O2, 457.2; m/z found 458.2 [M+H]+. 1H NMR (CDCl3): 8.36-8.26 (m, 1H), 7.91-7.69 (m, 4H), 7.36-7.29 (m, 0.5H), 7.25-7.16 (m, 1H), 7.13-7.07 (m, 0.5H), 6.97 (dd, J=7.5, 5.1 Hz, 1H), 4.87-4.70 (m, 1H), 4.53-4.34 (m, 0.5H), 4.25-4.06 (m, 1H), 3.92 (t, J=10.9 Hz, 0.5H), 3.85-3.71 (m, 1H), 2.46-2.40 (m, 1.5H), 2.39-2.19 (m, 1.5H), 2.04-1.79 (m, 3H), 1.72-1.19 (m, 4H).
Prepared analogous to Example 13 substituting 2-chloro-4-(trifluoromethyl)pyrimidine with 2-chloro-6-(trifluoromethyl)pyridine. MS (ESI) mass calcd. for C23H22F3N5O2, 457.2; m/z found 458.2 [M+H]+. 1H NMR (CDCl3): 7.87-7.63 (m, 4H), 7.37-7.11 (m, 3H), 6.92 (d, J=8.4 Hz, 0.5H), 6.73 (d, J=8.4 Hz, 0.5H), 4.88-4.75 (m, 1H), 4.20-3.84 (m, 2H), 3.81-3.67 (m, 1H), 2.49-2.36 (s, 2H), 2.34-2.13 (m, 1H), 2.08-1.77 (m, 3H), 1.76-1.10 (m, 4H).
Prepared analogous to Example 13 substituting 2-chloro-4-(trifluoromethyl)pyrimidine with 2-chloro-4-(methyl)pyridine. MS (ESI) mass calcd. for C23H25N5O2, 403.2; m/z found 404.2 [M+H]+. 1H NMR (CDCl3): 8.10-7.91 (m, 1H), 7.87 (d, J=3.7 Hz, 2H), 7.82-7.70 (m, 1H), 7.50-7.42 (m, 1H), 7.34-7.24 (m, 0.5H), 7.16-7.08 (m, 0.5H), 6.90-6.80 (m, 1H), 6.77-6.66 (m, 0.4H), 6.59-6.45 (m, 0.6H), 4.68 (q, J=4.0, 3.3 Hz, 1H), 4.16-3.71 (m, 3H), 2.49-2.18 (m, 5H), 1.94-1.17 (m, 8H).
Prepared analogous to Example 13 substituting 2-chloro-4-(trifluoromethyl)pyrimidine with 2-chloro-6-(methyl)pyridine. MS (ESI) mass calcd. for C23H25N5O2, 403.2; m/z found 404.2 [M+H]+. 1H NMR (CDCl3): 7.89 (d, J=1.3 Hz, 2H), 7.82-7.66 (m, 1.5H), 7.61 (dd, J=8.3, 7.3 Hz, 0.5H), 7.43 (ddd, J=8.3, 1.9, 0.9 Hz, 0.5H), 7.35-7.26 (m, 1H), 7.16-7.09 (m, 0.5H), 6.88 (dd, J=16.1, 7.3 Hz, 1H), 6.76 (d, J=8.4 Hz, 0.5H), 6.53 (d, J=8.3 Hz, 0.5H), 4.74-4.64 (m, 1H), 4.24-4.04 (m, 1H), 4.02-3.76 (m, 2H), 2.55-2.21 (m, 5H), 2.05-1.23 (m, 8H).
Prepared analogous to Example 13 substituting 2-chloro-4-(trifluoromethyl)pyrimidine with 2-chloro-5-(methyl)pyridine. MS (ESI) mass calcd. for C23H25N5O2, 403.2; m/z found 404.2 [M+H]+. 1H NMR (CDCl3): 8.10-7.58 (m, 4H), 7.43-7.29 (m, 1.5H), 7.26-7.11 (m, 1.5H), 6.66 (d, J=8.4 Hz, 0.5H), 6.45 (d, J=8.4 Hz, 0.5H), 4.86-4.71 (m, 1H), 4.17-3.66 (m, 3H), 2.46-2.38 (s, 1.2H), 2.31-2.14 (m, 3.8H), 2.01-1.79 (m, 2H), 1.71-1.18 (m, 6H).
Prepared analogous to Example 13 substituting 2-chloro-4-(trifluoromethyl)pyrimidine with 3-chloro-2,5-dimethylpyrazine. MS (ESI) mass calcd. for C23H26N6O2, 418.2; m/z found 419.2 [M+H]+. 1H NMR (400 MHz, CDCl3) 7.88-7.84 (m, 1H), 7.81-7.72 (m, 2.5H), 7.36-7.12 (m, 2H), 7.11-7.06 (m, 0.5H), 4.86-4.75 (m, 1H), 4.26-4.15 (m, 0.5H), 4.08 (dd, J=11.0, 5.5 Hz, 1H), 3.86-3.71 (m, 1.5H), 2.48-2.34 (m, 6H), 2.34-2.13 (m, 3H), 1.96-1.25 (m, 7H).
Prepared analogous to Example 13 substituting 2-chloro-4-(trifluoromethyl)pyrimidine with 2-chloro-3-(trifluoromethyl)quinoxaline. MS (ESI) mass calcd. for C26H23F3N6O2, 508.2; m/z found 509.2 [M+H]+. 1H NMR (CDCl3): 8.16-8.09 (m, 1H), 7.97-7.62 (m, 6H), 7.37-7.23 (m, 1H), 7.19-7.06 (m, 1H), 4.87 (t, J=4.7 Hz, 0.5H), 4.80 (d, J=4.8 Hz, 0.5H), 4.71-4.56 (m, 0.5H), 4.38-4.22 (m, 1H), 4.16-4.01 (m, 0.5H), 3.87-3.73 (m, 1H), 2.49-2.23 (m, 4H), 2.05-1.24 (m, 6H).
Prepared analogous to Example 7 substituting intermediate A-21 with intermediate A-1. MS (ESI) mass calcd. for C21H20FN5O2, 393.2; m/z found 394.2 [M+H]+. 1H NMR (400 MHz, MeOD) 8.02-7.78 (m, 4H), 7.62-7.53 (m, 0.5H), 7.49-7.28 (m, 3H), 7.13-7.01 (m, 0.5H), 6.75 (dd, J=9.0, 3.6 Hz, 0.5H), 6.51 (dd, J=9.0, 3.6 Hz, 0.5H), 4.85-4.71 (m, 1H), 4.21-4.03 (m, 1H), 4.02-3.72 (m, 2H), 2.39-2.09 (m, 1H), 2.04-1.16 (m, 6H).
Prepared analogous to Example 22 substituting intermediate A-1 with quinoline-8-carboxylic acid. MS (ESI) mass calcd. for C22H20FN3O2, 377.2; m/z found 378.2 [M+H]+. 1H NMR (400 MHz, CDCl3): 8.95-8.69 (m, 1H), 8.16 (dd, J=8.3, 1.8 Hz, 0.4H), 8.11-7.81 (m, 2H), 7.81-7.67 (m, 1H), 7.64-7.51 (m, 1H), 7.47-7.09 (m, 2.6H), 6.79 (dd, J=9.0, 3.6 Hz, 0.5H), 6.25 (s, 0.5H), 5.08-4.96 (m, 1H), 4.29 (s, 0.7H), 4.13-3.94 (m, 1.3H), 3.65-3.45 (m, 1H), 2.47-2.02 (m, 2H), 2.02-1.30 (m, 5H).
Prepared analogous to Example 22 substituting intermediate A-1 with 1-naphthoic acid. MS (ESI) mass calcd. for C23H21FN2O2, 376.2; m/z found 377.2 [M+H]+. 1H NMR (400 MHz, CDCl3): 8.10-7.95 (m, 1.5H), 7.92-7.83 (m, 1.5H), 7.81-7.71 (m, 1H), 7.58-7.31 (m, 4H), 7.25-7.13 (m, 1H), 6.77 (dd, J=9.0, 3.6 Hz, 0.5H), 6.36-6.24 (m, 0.5H), 5.04-4.92 (m, 1H), 4.30-4.13 (m, 1H), 4.07-3.84 (m, 1H), 3.81-3.64 (m, 1H), 2.44-2.30 (m, 0.5H), 2.27-2.00 (m, 1.5H), 1.89-1.37 (m, 5H).
Prepared analogous to Example 22 substituting intermediate A-1 with 2-methyl-1-naphthoic acid. 1H NMR (CDCl3): 8.06-7.86 (m, 1H), 7.85-7.62 (m, 2.6H), 7.60-7.54 (m, 0.2H), 7.49-7.21 (m, 3.4H), 7.13 (m, 0.8H), 6.77 (ddd, J=12.7, 9.0, 3.6 Hz, 0.6H), 6.43 (dd, J=9.0, 3.6 Hz, 0.2H), 6.03 (dd, J=9.0, 3.6 Hz, 0.2H), 5.11-4.99 (m, 0.9H), 4.38-4.09 (m, 1.2H), 4.08-3.82 (m, 0.7H), 3.69-3.43 (m, 1.2H), 2.58-2.27 (m, 3.5H), 2.23-1.97 (m, 1.5H), 1.92-1.28 (m, 5H).
Prepared analogous to Example 22 substituting intermediate A-1 with 2-(1H-pyrazol-1-yl)benzoic acid. MS (ESI) mass calcd. for C22H21FN4O2, 392.2; m/z found 393.2 [M+H]+. 1H NMR (CDCl3): 7.98 (dd, J=8.3, 3.1 Hz, 1H), 7.91-7.83 (m, 1H), 7.69 (d, J=1.9 Hz, 1H), 7.64-7.23 (m, 4.5H), 6.99 (t, J=7.4 Hz, 0.5H), 6.71 (dd, J=9.0, 3.6 Hz, 0.5H), 6.47-6.34 (m, 1.5H), 4.79-4.63 (m, 1H), 4.03-3.65 (m, 2H), 3.66-3.54 (m, 1H), 2.27-2.03 (m, 1H), 1.86-0.74 (m, 6H).
Prepared analogous to Example 22 substituting intermediate A-1 with 3-phenylfuran-2-carboxylic acid. MS (ESI) mass calcd. for C22H21FN2O3, 392.2; m/z found 393.2 [M+H]+. 1H NMR (CDCl3): 8.05-7.82 (m, 1H), 7.59-7.44 (m, 7H), 6.77-6.40 (m, 2H), 4.85-4.61 (m, 1H), 4.45-4.29 (m, 0.5H), 4.24-4.08 (m, 0.5H), 4.06-3.76 (m, 2H), 2.32-2.11 (m, 1H), 2.01-0.83 (m, 6H).
Prepared analogous to Example 22 substituting intermediate A-1 with 2-ethoxy-1-naphthoic acid. MS (ESI) mass calcd. for C25H25FN2O3, 420.2; m/z found 421.2 [M+H]+. 1H NMR (CDCl3): 8.03 (d, J=3.0 Hz, 0.2H), 7.95 (dd, J=8.1, 3.1 Hz, 0.5H), 7.86-7.70 (m, 2.6H), 7.69-7.63 (m, 0.3H), 7.60-7.55 (m, 0.3H), 7.50-7.00 (m, 4.2H), 6.76 (ddd, J=9.3, 6.1, 3.6 Hz, 0.5H), 6.44 (dd, J=9.0, 3.5 Hz, 0.2H), 6.03 (dd, J=9.0, 3.6 Hz, 0.2H), 5.08-4.97 (m, 1H), 4.35-3.92 (m, 3.3H), 3.91-3.76 (m, 0.5H), 3.68-3.52 (m, 1.2H), 2.44-2.27 (m, 0.8H), 2.20-1.93 (m, 2H), 1.85-1.18 (m, 7.2H).
Prepared analogous to Example 22 substituting intermediate A-1 with 5-(2-fluorophenyl)-2-methylthiazole-4-carboxylic acid. MS (ESI) mass calcd. for C23H21F2N3O2S, 441.2; m/z found 442.2 [M+H]+. 1H NMR (CDCl3): 7.99-7.93 (m, 1H), 7.53-7.44 (m, 1H), 7.36-7.09 (m, 3.5H), 7.04 (ddd, J=9.8, 8.5, 1.2 Hz, 0.5H), 6.66 (ddd, J=15.9, 9.0, 3.6 Hz, 1H), 4.79-4.68 (m, 1H), 4.27-4.21 (m, 0.5H), 4.07 (t, J=4.6 Hz, 0.5H), 3.96-3.73 (m, 2H), 2.74 (s, 1.5H), 2.42 (s, 1.5H), 2.23-2.11 (m, 1H), 1.89-1.57 (m, 2H), 1.54-1.24 (m, 3.5H), 0.92-0.81 (m, 0.5H).
Prepared analogous to Example 22 substituting intermediate A-1 with intermediate A-10. MS (ESI) mass calcd. for C21H19F2N5O2, 411.2; m/z found 412.2 [M+H]+. 1H NMR (CDCl3): 7.98 (dd, J=7.4, 3.0 Hz, 1H), 7.86 (ddd, J=21.7, 8.9, 4.7 Hz, 1H), 7.81-7.75 (m, 1.5H), 7.38-7.03 (m, 3.5H), 6.72 (dd, J=9.0, 3.6 Hz, 0.5H), 6.52 (dd, J=9.0, 3.6 Hz, 0.5H), 4.85-4.75 (m, 1H), 4.17-4.02 (m, 1H), 4.02-3.83 (m, 1H), 3.83-3.75 (m, 1H), 2.34-2.15 (m, 1H), 2.03-1.80 (m, 1H), 1.74-1.20 (m, 5H).
Prepared analogous to Example 22 substituting intermediate A-1 with intermediate A-6. MS (ESI) mass calcd. for C23H20F2N4O2, 422.2; m/z found 423.2 [M+H]+. 1H NMR (CDCl3): 8.93-8.61 (m, 1.8H), 8.15-7.92 (m, 1.6H), 7.56-7.05 (m, 4.3H), 6.94 (t, J=8.6 Hz, 0.3H), 6.73 (ddd, J=8.9, 5.2, 3.5 Hz, 0.6H), 6.59-6.35 (m, 0.4H), 4.99-4.79 (m, 1H), 4.31 (t, J=9.9 Hz, 0.3H), 4.25-3.63 (m, 2.7H), 2.47-1.11 (m, 7H).
Prepared analogous to Example 22 substituting intermediate A-1 with 5-fluoro-2-(pyrimidin-2-yl)benzoic acid. MS (ESI) mass calcd. for C23H20F2N4O2, 422.2; m/z found 423.2 [M+H]+. 1H NMR (500 MHz, CDCl3) 8.78 (d, J=4.9 Hz, 1H), 8.72 (d, J=4.8 Hz, 1H), 8.22 (ddd, J=20.6, 8.7, 5.5 Hz, 1H), 8.01-7.93 (m, 1H), 7.37-7.27 (m, 1H), 7.23-7.13 (m, 1.5H), 7.13-6.99 (m, 1.5H), 6.72 (dd, J=9.0, 3.5 Hz, 0.5H), 6.52 (dd, J=9.0, 3.5 Hz, 0.5H), 4.90-4.75 (m, 1H), 4.25-3.91 (m, 2H), 3.91-3.78 (m, 1H), 2.39-2.15 (m, 1H), 2.08-1.13 (m, 6H).
Prepared analogous to Example 22 substituting intermediate A-1 with 5-methyl-2-(pyrimidin-2-yl)benzoic acid. MS (ESI) mass calcd. for C24H23FN4O2, 418.2; m/z found 419.2 [M+H]+. 1H NMR (CDCl3): 8.81-8.68 (m, 2H), 8.09 (dd, J=9.9, 8.0 Hz, 1H), 7.98 (dd, J=8.6, 3.1 Hz, 1H), 7.41-7.24 (m, 1.5H), 7.22-7.16 (m, 1H), 7.16-7.09 (m, 1.5H), 6.73 (dd, J=9.1, 3.6 Hz, 0.5H), 6.52 (dd, J=9.0, 3.6 Hz, 0.5H), 4.88-4.77 (m, 1H), 4.21-4.01 (m, 1H), 4.01-3.89 (m, 1H), 3.88-3.76 (m, 1H), 2.42 (s, 1.6H), 2.35-2.10 (m, 1H), 2.07-1.81 (m, 2.4H), 1.81-1.16 (m, 5H).
Step A: (±)-2-(-7-azabicyclo[2.2.1]heptan-2-ylmethoxy)quinoxaline. To intermediate B-10 (240 mg, 1.1 mmol) in THF (4 mL) was added NaOtBu (130 mg, 1.4 mmol). The reaction was heated at reflux for 15 min and 2-chloroquinoxaline (207 mg, 1.3 mmol) was added. After 45 min, the reaction was cooled to rt and ½ saturated NH4Cl (aq) was added. The solution was made slightly basic with 5% Na2CO3 (aq) and extracted with DCM (3×). The combined organics were dried (Na2SO4). The resulting compound was treated with TFA in DCM. After the reaction was complete, the reaction was concentrated, neutralized with 5% Na2CO3 and extracted with DCM. The combined organics were dried (Na2SO4). Purification via silica gel chromatography (1-7% (2M NH3 in MeOH)/DCM) gave the title compound (208 mg, 78%). MS (ESI) mass calcd. for C15H17N3O, 255.1; m/z found 256.2 [M+H]+.
Step B: (±)-(2-(2H-1,2,3-triazol-2-yl)phenyl)(2-((quinoxalin-2-yloxy)methyl)-7-azabicyclo[2.2.1]heptan-7-yl)methanone. Prepared analogous to Example 7 substituting 6-methyl-3-(2H-1,2,3-triazol-2-yl)picolinic acid with intermediate A-1 and (±)-2-(((5-fluoropyridin-2-yl)oxy)methyl)-7-azabicyclo[2.2.1]heptane with the title compound of Step A. MS (ESI) mass calcd. for C24H22N6O2, 426.2; m/z found 427.2 [M+H]+. 1H NMR (CDCl3): 8.49 (s, 0.5H), 8.31-8.21 (s, 0.5H), 8.08-7.98 (m, 1H), 7.95-7.75 (m, 3.4H), 7.75-7.66 (m, 1.1H), 7.65-7.50 (m, 1.7H), 7.50-7.39 (m, 1.1H), 7.36-7.28 (m, 1H), 7.24-7.13 (m, 0.7H), 4.92-4.80 (m, 1H), 4.47-4.28 (m, 1H), 4.22-4.07 (m, 1H), 3.87-3.77 (m, 1H), 2.46-2.23 (m, 1.7H), 2.07-1.83 (m, 1.3H), 1.82-1.29 (m, 4H).
Prepared analogous to Example 34 substituting intermediate A-1 with intermediate A-11. MS (ESI) mass calcd. for C24H21FN6O2, 444.2; m/z found 445.2 [M+H]. 1H NMR (CDCl3): 8.52-8.47 (m, 0.5H), 8.27-8.21 (m, 0.4H), 8.07-7.95 (m, 1H), 7.91-7.09 (m, 7.8H), 6.72-6.63 (m, 0.3H), 4.98-4.87 (m, 1H), 4.63-4.54 (dd, J=10.7, 9.1 Hz, 0.5H), 4.46-4.29 (m, 1H), 4.20-4.04 (m, 0.5H), 3.96-3.76 (m, 1H), 2.51-2.23 (m, 1H), 2.17-1.88 (m, 1H), 1.84-1.19 (m, 5H).
Prepared analogous to Example 34 substituting intermediate A-1 with intermediate A-37. MS (ESI) mass calcd. for C25H24N6O2, 440.2; m/z found 441.2 [M+H]+. 1H NMR (CDCl3): 8.49 (s, 0.5H), 8.26 (s, 0.5H), 8.03 (ddd, J=8.3, 4.4, 1.4 Hz, 1H), 7.90-7.74 (m, 3H), 7.74-7.65 (m, 1H), 7.59 (dddd, J=8.3, 7.0, 4.8, 1.4 Hz, 1H), 7.33 (ddd, J=8.3, 1.9, 0.9 Hz, 0.6H), 7.29-7.22 (m, 1H), 7.21-7.10 (m, 1.4H), 4.90-4.79 (m, 1H), 4.46-3.98 (m, 2H), 3.91-3.72 (m, 1H), 2.47-2.20 (m, 4H), 2.05-1.22 (m, 6H).
Prepared analogous to Example 34 substituting intermediate A-1 with intermediate A-10. MS (ESI) mass calcd. for C24H21FN6O2, 444.2; m/z found 445.2 [M+H]+. 1H NMR (CDCl3): 8.55-8.44 (m, 0.5H), 8.36-8.23 (m, 0.5H), 8.08-8.00 (m, 1H), 7.90-7.55 (m, 5H), 7.49-7.09 (m, 3H), 4.91-4.82 (m, 1H), 4.50-4.29 (m, 1H), 4.23-4.07 (m, 1H), 3.82 (dd, J=10.0, 5.0 Hz, 1H), 2.48-2.25 (m, 1H), 2.09-1.88 (m, 1H), 1.82-1.31 (m, 5H).
Prepared analogous to Example 34 substituting intermediate A-1 with intermediate A-34. MS (ESI) mass calcd. for C27H25N5O2, 451.2; m/z found 452.2 [M+H]+. 1H NMR (CDCl3): 8.87-8.79 (m, 1H), 8.75-8.68 (m, 1H), 8.49 (s, 0.5H), 8.27 (s, 0.5H), 8.14-7.98 (m, 2H), 7.85 (ddd, J=16.5, 8.3, 1.5 Hz, 1H), 7.74-7.66 (m, 1H), 7.64-7.54 (m, 1H), 7.35-7.29 (m, 0.5H), 7.24-7.19 (m, 0.5H), 7.18-7.07 (m, 2H), 4.94-4.83 (m, 1H), 4.52-4.07 (m, 2H), 3.93-3.82 (m, 1H), 2.51-2.20 (m, 2.6H), 2.08-1.83 (m, 1.4H), 1.81-1.12 (m, 6H).
Step A: (±)-2-(((4,6-dimethylpyrimidin-2-yl)oxy)methyl)-7-azabicyclo[2.2.1]heptane. Prepared analogous to Example 34 substituting 2-chloroquinoxaline with 2-chloro-4,6-dimethylpyrimidine. 1H NMR (CDCl3): 6.65 (s, 1H), 4.21-3.99 (m, 2H), 3.74-3.56 (m, 2H), 2.39 (s, 6H), 2.14 (ddd, J=9.0, 5.1, 3.7 Hz, 1H), 1.86 (s, 2H), 1.67-1.49 (m, 2H), 1.47-1.30 (m, 2H).
Step B: (±)-(2-(((4,6-dimethylpyrimidin-2-yl)oxy)methyl)-7-azabicyclo[2.2.1]heptan-7-yl)(5-methyl-2-(2H-1,2,3-triazol-2-yl)phenyl)methanone. Prepared analogous to Example 7 substituting 6-methyl-3-(2H-1,2,3-triazol-2-yl)picolinic acid with 5-methyl-2-(2H-1,2,3-triazol-2-yl)benzoic acid and (±)-2-(((5-fluoropyridin-2-yl)oxy)methyl)-7-azabicyclo[2.2.1]heptane with the title compound of Step A. MS (ESI) mass calcd. for C23H26N6O2, 418.2; m/z found 419.2 [M+H]+. 1H NMR (CDCl3): 7.83-7.70 (m, 2.5H), 7.35-7.10 (m, 2.5H), 6.71-6.65 (m, 1H), 4.87-4.72 (m, 1H), 4.34 (dd, J=10.5, 8.8 Hz, 0.5H), 4.14-3.89 (m, 2H), 3.79-3.70 (m, 0.5H), 2.48-2.18 (m, 7.5H), 2.07-1.83 (m, 2.5H), 1.79-1.18 (m, 6H).
Prepared analogous to Example 39 substituting 5-methyl-2-(2H-1,2,3-triazol-2-yl)benzoic acid with 3-methyl-5-phenylisoxazole-4-carboxylic acid. MS (ESI) mass calcd. for C24H26N4O3, 418.2; m/z found 419.2 [M+H]+. 1H NMR (CDCl3): 7.67 (m, 2H), 7.50-7.31 (m, 3H), 6.69 (d, J=6.7 Hz, 1H), 4.74 (dd, J=10.8, 5.1 Hz, 1H), 4.17 (dd, J=10.8, 9.2 Hz, 0.5H), 3.85-3.78 (m, 1H), 3.70 (d, J=4.9 Hz, 0.5H), 3.64-3.42 (m, 1H), 2.55 (s, 1.4H), 2.49 (s, 1.6H), 2.43 (s, 3H), 2.39 (s, 3H), 2.29-2.07 (m, 1H), 1.90-1.55 (m, 2H), 1.53-1.06 (m, 3H), 0.76-0.53 (m, 1H).
Prepared analogous to Example 39 substituting 5-methyl-2-(2H-1,2,3-triazol-2-yl)benzoic acid with 2-ethoxy-1-naphthoic acid. 1H NMR (CDCl3): 7.91-7.70 (m, 2.5H), 7.67-7.54 (m, 0.5H), 7.49-7.38 (m, 0.8H), 7.37-7.28 (m, 0.8H), 7.27-7.16 (m, 0.9H), 7.10-7.02 (m, 0.5H), 6.70 (s, 0.2H), 6.65 (s, 0.5H), 6.53 (s, 0.3H), 5.09-4.95 (m, 1H), 4.56-4.47 (m, 0.5H), 4.28-3.87 (m, 3.3H), 3.79-3.55 (m, 1.2H), 2.46-2.35 (m, 4.5H), 2.28 (s, 1.5H), 2.21-1.95 (m, 2H), 1.85-1.51 (m, 3.5H), 1.51-1.24 (m, 4.5H).
Prepared analogous to Example 39 substituting 5-methyl-2-(2H-1,2,3-triazol-2-yl)benzoic acid with 2-ethoxybenzoic acid. MS (ESI) mass calcd. for C22H27N3O3, 381.2; m/z found 382.2 [M+H]+. 1H NMR (CDCl3): 7.34-7.27 (m, 1H), 7.21-7.12 (m, 1H), 6.98-6.92 (m, 0.5H), 6.89 (d, J=8.2 Hz, 0.5H), 6.78 (d, J=8.3 Hz, 0.5H), 6.72-6.63 (m, 1.5H), 4.89-4.78 (m, 1H), 4.36 (dd, J=10.6, 8.7 Hz, 0.5H), 4.14-3.71 (m, 4.5H), 2.45-2.16 (m, 6.5H), 2.06-1.82 (m, 1.5H), 1.82-1.28 (m, 8H).
Prepared analogous to Example 39 substituting 5-methyl-2-(2H-1,2,3-triazol-2-yl)benzoic acid with 2-fluoro-6-(pyrimidin-2-yl)benzoic acid. MS (ESI) mass calcd. for C24H24FN5O2, 433.2; m/z found 434.2 [M+H]+. 1H NMR (CDCl3): 9.02-8.90 (m, 0.7H), 8.82-8.65 (m, 1.3H), 8.14-7.95 (m, 1H), 7.58-7.31 (m, 1H), 7.31-7.07 (m, 1.7H), 6.97-6.86 (m, 0.3H), 6.75-6.51 (m, 1H), 4.96-4.83 (m, 1H), 4.55 (dd, J=10.3, 9.0 Hz, 0.25H), 4.36 (dd, J=10.6, 8.9 Hz, 0.25H), 4.21-3.78 (m, 2.5H), 2.48-1.17 (m, 13H).
Prepared analogous to Example 39 substituting 5-methyl-2-(2H-1,2,3-triazol-2-yl)benzoic acid with 5-fluoro-2-(pyrimidin-2-yl)benzoic acid. MS (ESI) mass calcd. for C24H24FN5O2, 433.2; m/z found 434.2 [M+H]+. 1H NMR (CDCl3): 8.88-8.78 (m, 1H), 8.72 (d, J=4.8 Hz, 1H), 8.26 (dd, J=8.7, 5.5 Hz, 0.5H), 8.22-8.16 (m, 0.5H), 7.29-7.09 (m, 2H), 7.06-6.97 (m, 1H), 6.68 (s, 1H), 4.88-4.81 (m, 1H), 4.40 (t, J=9.7 Hz, 0.5H), 4.25 (t, J=10.8 Hz, 0.5H), 4.05 (dd, J=10.2, 6.2 Hz, 0.5H), 3.99-3.91 (m, 1H), 3.89-3.80 (m, 0.5H), 2.45-2.21 (m, 7H), 2.05-1.87 (m, 1H), 1.81-1.30 (m, 5H).
Prepared analogous to Example 39 substituting 5-methyl-2-(2H-1,2,3-triazol-2-yl)benzoic acid with 5-methyl-2-(pyrimidin-2-yl)benzoic acid. MS (ESI) mass calcd. for C25H27N5O2, 429.2; m/z found 430.2 [M+H]+. 1H NMR (CDCl3): 8.83 (d, J=5.0 Hz, 1H), 8.71 (d, J=4.8 Hz, 1H), 8.09 (dd, J=13.6, 8.0 Hz, 1H), 7.33-7.10 (m, 3H), 6.68 (d, J=1.4 Hz, 1H), 4.90-4.79 (m, 1H), 4.41 (dd, J=10.4, 8.8 Hz, 0.5H), 4.20 (t, J=10.6 Hz, 0.5H), 4.07-3.94 (m, 1.5H), 3.80 (t, J=4.7 Hz, 0.5H), 2.49-2.19 (m, 7H), 2.04-1.89 (m, 3H), 1.87-1.47 (m, 4.5H), 1.45-1.29 (m, 1.5H).
Prepared analogous to Example 11 substituting (±)-2-(((5-fluoropyridin-2-yl)oxy)methyl)-7-azabicyclo[2.2.1]heptane with (±)-2-(((4,6-dimethylpyrimidin-2-yl)oxy)methyl)-7-azabicyclo[2.2.1]heptane. MS (ESI) mass calcd. for C24H25N3O2S, 419.2; m/z found 420.2 [M+H]+. 1H NMR (400 MHz, CDCl3): 7.55-6.83 (m, 7H), 6.75-6.62 (m, 1H), 4.87-4.62 (m, 1H), 4.09-3.38 (m, 3H), 2.54-2.32 (m, 6H), 2.32-2.03 (m, 1H), 1.97-0.87 (m, 6H).
Step A: (±)-2-(((5-(trifluoromethyl)pyridin-2-yl)oxy)methyl)-7-azabicyclo[2.2.1]heptane. Prepared analogous to Example 49 substituting 5-bromo-2-fluoropyridine with 2-fluoro-5-(trifluoromethyl)pyridine. MS (ESI) mass calcd. for C13H15F3N2O, 272.1; m/z found 273.1, [M+H]+.
Step B: (±)-(6-methyl-3-(2H-1,2,3-triazol-2-yl)pyridin-2-yl)(2-(((5-(trifluoromethyl)pyridin-2-yl)oxy)methyl)-7-azabicyclo[2.2.1]heptan-7-yl)methanone. Prepared analogous to Example 1 substituting 5-fluoro-2-(pyrimidin-2-yl)benzoic acid with 6-methyl-3-(2H-1,2,3-triazol-2-yl)picolinic acid and (1S,2R,4R)-tert-butyl-2-((pyridin-2-yloxy)methyl)-7-azabicyclo[2.2.1]heptane-7-carboxylate with the title compound of Step A. MS (ESI) mass calcd. for C22H21F3N6O2, 458.2; m/z found 459.2 [M+H]+. 1H NMR (CDCl3): 8.47-8.37 (m, 1H), 8.12 (dd, J=13.2, 8.4 Hz, 1H), 7.85-7.69 (m, 3H), 7.32 (dd, J=8.4, 0.6 Hz, 0.5H), 7.22 (dd, J=8.4, 0.6 Hz, 0.5H), 6.88-6.82 (m, 0.5H), 6.69-6.59 (m, 0.5H), 4.93-4.81 (m, 1H), 4.39-4.18 (m, 2H), 3.94-3.87 (m, 1H), 2.65-2.60 (s, 1.2H), 2.39-2.22 (m, 2.8H), 2.11-1.33 (m, 6H).
Prepared analogous to Example 47 substituting 6-methyl-3-(2H-1,2,3-triazol-2-yl)picolinic acid with 3-ethoxy-6-methylpicolinic acid. MS (ESI) mass calcd. for C22H24F3N3O3, 435.2; m/z found 436.2 [M+H]+. 1H NMR (CDCl3): 8.43-8.35 (m, 1H), 7.79-7.68 (m, 1H), 7.18-7.07 (m, 1H), 7.07-6.96 (m, 1H), 6.86 (d, J=8.7 Hz, 0.5H), 6.64 (d, J=8.7 Hz, 0.5H), 4.92-4.86 (m, 1H), 4.29-4.20 (m, 1H), 4.19-4.10 (m, 1H), 4.10-3.83 (m, 2H), 3.74 (t, J=3.9 Hz, 1H), 2.52-2.47 (s, 1.5H), 2.41-2.32 (m, 0.5H), 2.28-2.18 (m, 2H), 2.07-1.84 (m, 2H), 1.78-1.63 (m, 1H), 1.62-1.41 (m, 3H), 1.37 (dt, J=11.8, 7.0 Hz, 3H).
Step A: (±)-2-(((5-bromopyridin-2-yl)oxy)methyl)-7-azabicyclo[2.2.1]heptane. To intermediate B-10 (175 mg, 0.8 mmol) in DMF (3.5 mL) at 0° C. was added NaH (60 wt % in mineral oil, 37 mg, 0.9 mmol). After 30 min, 5-bromo-2-fluoropyridine (190 mg, 1.1 mmol) in DMF (0.5 mL) was added dropwise and the 0° C. ice bath was removed. After 2 h, brine was added and the reaction extracted with EtOAc (2×). The combined organics were washed with brine and dried (Na2SO4) to give a clear oil which was treated with TFA and DCM (1:1, 10 mL). After 2 h, the reaction was concentrated, dissolved in DCM and neutralized with 5% Na2CO3 (aq). The combined organics were extracted with DCM (3×) and dried (Na2SO4) to give the title compound that was used in subsequent reactions without further purification. MS (ESI) mass calcd. for C12H15BrN2O, 282.0; m/z found 283.1, 285.1 [M+H]+. NMR (500 MHz, CDCl3): 8.17 (d, J=2.5 Hz, 1H), 7.63 (dd, J=8.8, 2.5 Hz, 1H), 6.65 (d, J=8.8 Hz, 1H), 4.08-3.99 (m, 2H), 3.65 (t, J=4.5 Hz, 1H), 3.59 (d, J=4.1 Hz, 1H), 2.12-2.06 (m, 1H), 1.87 (s, 1H), 1.68-1.52 (m, 2H), 1.45-1.13 (m, 3H), 0.95-0.76 (m, 1H).
Step B: Prepared analogous to Example 1 substituting 5-fluoro-2-(pyrimidin-2-yl)benzoic acid with 6-methyl-3-(2H-1,2,3-triazol-2-yl)picolinic acid and (1S,2R,4R)-tert-butyl-2-((pyridin-2-yloxy)methyl)-7-azabicyclo[2.2.1]heptane-7-carboxylate with the title compound of Step A. MS (ESI) mass calcd. for C21H21BrN6O2, 468.1; m/z found 469.1, 471.1 [M+H]+. 1H NMR (CDCl3): 8.20 (d, J=2.6 Hz, 0.4H), 8.16 (d, J=2.6 Hz, 0.6H), 8.13 (d, J=8.3 Hz, 0.4H), 8.10 (d, J=8.4 Hz, 0.6H), 7.82-7.77 (m, 2H), 7.64 (dd, J=8.8, 2.6 Hz, 0.4H), 7.60 (dd, J=8.8, 2.6 Hz, 0.6H), 7.33-7.29 (m, 0.4H), 7.22 (d, J=8.4 Hz, 0.6H), 6.69 (d, J=8.8 Hz, 0.4H), 6.50 (d, J=8.8 Hz, 0.6H), 4.84 (dd, J=11.1, 5.2 Hz, 1H), 4.30-4.04 (m, 2H), 3.93-3.85 (m, 1H), 2.62 (s, 1.3H), 2.38-2.17 (m, 2.7H), 2.11-1.95 (m, 1H), 1.94-1.77 (m, 1H), 1.77-1.40 (m, 4H).
Prepared analogous to Example 49 substituting 6-methyl-3-(2H-1,2,3-triazol-2-yl)picolinic acid with 3-fluoro-2-methoxybenzoic acid. MS (ESI) mass calcd. for C20H20BrFN2O3, 434.1; m/z found 435.1, 437.1 [M+H]+. 1H NMR (CDCl3): 8.19-8.12 (m, 1H), 7.61 (ddd, J=26.6, 8.8, 2.5 Hz, 1H), 7.16-6.98 (m, 2H), 6.96 (dt, J=7.6, 1.3 Hz, 0.5H), 6.85-6.81 (m, 0.5H), 6.69 (dd, J=8.8, 0.8 Hz, 0.5H), 6.46 (d, J=8.7 Hz, 0.5H), 4.88-4.77 (m, 1H), 4.17-4.06 (m, 1H), 4.03-3.86 (m, 4H), 3.81-3.75 (m, 1H), 2.37-2.22 (m, 1H), 2.04-1.40 (m, 6H).
Prepared analogous to Example 49 substituting 6-methyl-3-(2H-1,2,3-triazol-2-yl)picolinic acid with 3-ethoxy-6-methylpicolinic acid. MS (ESI) mass calcd. for C21H24BrN3O3, 445.1; m/z found 446.1, 448.1 [M+H]+. 1H NMR (CDCl3): 8.17-8.11 (m, 1H), 7.61 (ddd, J=19.5, 8.8, 2.6 Hz, 1H), 7.16-7.06 (m, 1H), 7.05-6.96 (m, 1H), 6.69 (dd, J=8.8, 0.7 Hz, 0.5H), 6.47 (dd, J=8.8, 0.7 Hz, 0.5H), 4.90-4.84 (m, 1H), 4.20-4.10 (m, 1H), 4.09-3.82 (m, 3H), 3.78-3.72 (m, 1H), 2.50 (s, 1.4H), 2.38-2.25 (m, 2.6H), 2.04-1.84 (m, 2H), 1.75-1.40 (m, 4H), 1.60-1.40 (m, 3H), 1.36 (dt, J=7.8, 7.0 Hz, 3H).
Prepared analogous to Example 1 substituting 5-fluoro-2-(pyrimidin-2-yl)benzoic acid with 3-fluoro-2-(pyrimidin-2-yl)benzoic acid and intermediate B-9 with intermediate B-10. MS (ESI) mass calcd. for C23H21FN4O2, 404.2; m/z found 405.2 [M+H]+. 1H NMR (CDCl3): 8.81 (dd, J=18.0, 4.9 Hz, 2H), 8.20-8.12 (m, 1H), 7.56 (ddd, J=8.3, 7.1, 2.0 Hz, 1H), 7.45 (td, J=8.0, 5.1 Hz, 0.5H), 7.28-7.22 (m, 1.5H), 7.21-7.08 (m, 1.5H), 7.05-6.96 (m, 0.5H), 6.88 (dddd, J=13.2, 7.1, 5.1, 1.0 Hz, 1H), 6.71 (dt, J=8.4, 0.9 Hz, 0.5H), 6.61 (dt, J=8.4, 0.9 Hz, 0.5H), 4.70-4.61 (m, 1H), 4.15-4.07 (m, 1H), 4.06-3.89 (m, 2H), 2.26 (ddt, J=15.3, 8.3, 4.5 Hz, 1H), 1.93-1.27 (m, 6H).
Step A: (±)-tert-butyl 2-((pyridazin-3-yloxy)methyl)-7-azabicyclo[2.2.1]heptane-7-carboxylate. To intermediate B-10 (266 mg, 1.2 mmol) in THF (4 mL) at 0 C was added NaH (60 wt % in mineral oil, 70 mg, 1.8 mmol). After 15 min, 3-chloropyridazine (160 mg, 1.4 mmol) was added. The reaction allowed to warm to rt. After 18 h, H2O was added and the mixture extracted with EtOAc. The organic layer was dried. Purification via silica gel chromatography (0-30% EtOAc in heptane) gave the title compound (300 mg, 90%). MS (ESI) mass calcd. for C16H23N3O3, 305.2; m/z found 306.0 [M+H]+.
Step B: (±)-2-((pyridazin-3-yloxy)methyl)-7-azabicyclo[2.2.1]heptane hydrochloride. To the title compound from step A (300 mg, 1 mmol) in 1,4-dioxane (3 mL) was added 6N HCl in iPrOH (1 mL). The reaction was heated to 70° C. for 3 h, cooled to rt and concentrated to give the title compound that was used without further purification. MS (ESI) mass calcd. for C11H15N3O, 205.1; m/z found 206.0 [M+H]+.
Step C: (±)-(6-methyl-3-(2H-1,2,3-triazol-2-yl)pyridin-2-yl)(2-((pyridazin-3-yloxy)methyl)-7-azabicyclo[2.2.1]heptan-7-yl)methanone. To 6-methyl-3-(2H-1,2,3-triazol-2-yl)picolinic acid (270 mg, 1.3 mmol) in DMF (3 mL) was added DIPEA (630 μL, 3.6 mmol), HBTU (590 mg, 1.5 mmol) and the title compound from step B (250 mg, 1 mmol). After stirring overnight, saturated NaHCO3 (aq) was added and the mixture extracted with EtOAc (3×). The combined organics were dried (MgSO4). Purification by reverse phase chromatography gave material that was triturated with Et2O/pentane to give the title compound (115 mg, 28%) as a beige solid. MS (ESI) mass calcd. for C20H21N7O2, 391.2; m/z found 392.2 [M+H]+. 1H NMR (DMSO-D6): 8.91 (dd, J=8.5, 4.4 Hz, 1H), 8.23-8.04 (m, 3H), 7.69-7.52 (m, 1.5H), 7.41 (d, J=8.4 Hz, 0.5H), 7.28 (d, J=8.9 Hz, 0.5H), 7.10 (d, J=8.9 Hz, 0.5H), 4.60 (t, J=4.8 Hz, 1H), 4.40-4.19 (m, 2H), 3.87 (t, J=4.3 Hz, 0.5H), 3.79 (d, J=4.3 Hz, 0.5H), 2.58 (s, 1.5H), 2.46-2.24 (m, 1H), 2.06 (s, 1.5H), 1.81-1.34 (m, 6H).
Step A: (±)-tert-butyl-2-(((methylsulfonyl)oxy)methyl)-7-azabicyclo[2.2.1]heptane-7-carboxylate. To intermediate B-10 (545 mg, 2.4 mmol) in DCM (12 mL) at 0° C. was added TEA (333 μL, 2.4 mmol) followed by MsCl (190 μL, 2.4 mmol). After 2 h, brine was added and the mixture was extracted with DCM (2×). The combined organics were dried (Na2SO4) to give the title compound (650 mg, 89%) that was used without further purification. MS (ESI) mass calcd. for C12H23NO5S, 305.1; m/z found 249.9 [M−55]+.
Step B: (±)-tert-butyl 2-(((2-methylpyridin-3-yl)oxy)methyl)-7-azabicyclo[2.2.1]heptane-7-carboxylate. To 2-methylpyridin-3-ol in DMF was added KOH. The solution was stirred for 30 min at rt, then the title compound from step A was added and the reaction was heated at 80° C. After 5 h, H2O was added and the mixture extracted with EtOAc. The combined organic layers were dried (MgSO4). Purification via silica gel chromatography (0-7% MeOH in DCM) gave the title compound (201 mg, 90%). MS (ESI) mass calcd. for C18H26N2O3, 318.2; m/z found 319.0 [M+1]+.
Step C: (±)-2-(((2-methylpyridin-3-yl)oxy)methyl)-7-azabicyclo[2.2.1]heptane. Prepared analogous to example 53 step B substituting (±)-tert-butyl 2-((pyridazin-3-yloxy)methyl)-7-azabicyclo[2.2.1]heptane-7-carboxylate with (±)-tert-butyl 2-(((2-methylpyridin-3-yl)oxy)methyl)-7-azabicyclo[2.2.1]heptane-7-carboxylate. MS (ESI) mass calcd. for C13H18N2O, 218.1; m/z found 219.1 [M+1]+.
Step D: (±)-(6-methyl-3-(2H-1,2,3-triazol-2-yl)pyridin-2-yl)(2-(((2-methylpyridin-3-yl)oxy)methyl)-7-azabicyclo[2.2.1]heptan-7-yl)methanone.
Prepared analogous to example 53 step C substituting (±)-2-((pyridazin-3-yloxy)methyl)-7-azabicyclo[2.2.1]heptane hydrochloride with (±)-2-(((2-methylpyridin-3-yl)oxy)methyl)-7-azabicyclo[2.2.1]heptane. MS (ESI) mass calcd. for C22H24N6O2, 404.2; m/z found 405.2 [M+H]+. 1H NMR (DMSO-D6): 8.22-7.92 (m, 4H), 7.55 (d, J=8.4 Hz, 0.3H), 7.45-7.33 (m, 1H), 7.32-7.10 (m, 1.7H), 4.60-4.57 (m, 1H), 3.92-3.67 (m, 3H), 2.57 (s, 0.9H), 2.42-2.18 (m, 1.9H), 2.08 (s, 2.1H), 1.95 (s, 2.1H), 1.80-1.31 (m, 6H).
Step A: (±)-tert-butyl 2-(((2-methylpyridin-3-yl)oxy)methyl)-7-azabicyclo[2.2.1]heptane-7-carboxylate. Prepared analogous to Example 7 Step A Method A substituting PBu3 with PPh3, DEAD with DIAD, 5-fluoropyridin-2(1H)-one with 3-methylpyridin-2-ol and performing the reaction at rt. MS (ESI) mass calcd. for C18H26N2O3, 318.2; m/z found 319.0 [M+H]+.
Step B: (±)-2-(((2-methylpyridin-3-yl)oxy)methyl)-7-azabicyclo[2.2.1]heptane. Prepared analogous to Example 53 Step B substituting (±)-tert-butyl 2-((pyridazin-3-yloxy)methyl)-7-azabicyclo[2.2.1]heptane-7-carboxylate with (±)-tert-butyl 2-(((2-methylpyridin-3-yl)oxy)methyl)-7-azabicyclo[2.2.1]heptane-7-carboxylate. MS (ESI) mass calcd. for C13H18N2O, 218.1; m/z found 219.0 [M+H]+.
Step C: (±)-(6-methyl-3-(2H-1,2,3-triazol-2-yl)pyridin-2-yl)(2-(((3-methylpyridin-2-yl)oxy)methyl)-7-azabicyclo[2.2.1]heptan-7-yl)methanone.
Prepared analogous to Example 53 Step C substituting (±)-2-((pyridazin-3-yloxy)methyl)-7-azabicyclo[2.2.1]heptane hydrochloride with (±)-2-(((2-methylpyridin-3-yl)oxy)methyl)-7-azabicyclo[2.2.1]heptane. MS (ESI) mass calcd. for C22H24N6O2, 404.2; m/z found 405.2 [M+H]+.
Step A: (±)-tert-butyl 2-(((1-methyl-1H-pyrazol-5-yl)oxy)methyl)-7-azabicyclo[2.2.1]heptane-7-carboxylate. Prepared analogous to Example 7 Step A Method A substituting THF with PhCH3 and 5-fluoropyridin-2(1H)-one with 1-methyl-1H-pyrazol-5-ol. MS (ESI) mass calcd. for C16H25N3O3, 307.2; m/z found 308.0 [M+H]+.
Step B: (±)-2-(((1-methyl-1H-pyrazol-5-yl)oxy)methyl)-7-azabicyclo[2.2.1]heptane. Prepared analogous to Example 53 Step B substituting (±)-tert-butyl 2-((pyridazin-3-yloxy)methyl)-7-azabicyclo[2.2.1]heptane-7-carboxylate the title compound of Step A. MS (ESI) mass calcd. for C11H17N3O, 207.1; m/z found 208.0 [M+H]+.
Step C: (±)-(2-(((1-methyl-1H-pyrazol-5-yl)oxy)methyl)-7-azabicyclo[2.2.1]heptan-7-yl)(6-methyl-3-(2H-1,2,3-triazol-2-yl)pyridin-2-yl)methanone. Prepared analogous to Example 53 Step C substituting (±)-2-((pyridazin-3-yloxy)methyl)-7-azabicyclo[2.2.1]heptane hydrochloride with the title compound of Step B. MS (ESI) mass calcd. for C20H23N7O2, 393.2; m/z found 394.2 [M+H]+. 1H NMR (DMSO-D6): 8.18-8.05 (m, 3H), 7.56 (d, J=8.4 Hz, 0.4H), 7.49 (d, J=8.4 Hz, 0.6H), 7.23 (d, J=1.7 Hz, 0.4H), 7.19 (d, J=1.7 Hz, 0.6H), 5.70 (d, J=1.8 Hz, 0.4H), 5.59 (d, J=1.8 Hz, 0.6H), 4.59-4.56 (m, 1H), 3.96-3.76 (m, 3H), 3.57 (s, 1.2H), 3.34 (s, 1.8H), 2.58 (s, 1.2H), 2.39-2.17 (m, 2.8H), 1.87-1.27 (m, 6H).
Prepared analogous to Example 54 substituting 2-methylpyridin-3-ol with pyridin-4-ol. MS (ESI) mass calcd. for C21H22N6O2, 390.2; m/z found 391.2 [M+H]+. 1H NMR (DMSO-D6): 8.41 (d, J=5.5 Hz, 0.8H), 8.36 (d, J=5.5 Hz, 1.2H), 8.20-8.02 (m, 3H), 7.55 (d, J=8.4 Hz, 0.4H), 7.40 (d, J=8.4 Hz, 0.6H), 7.00 (d, J=6.2 Hz, 0.8H), 6.88 (d, J=6.2 Hz, 1.2H), 4.64-4.51 (m, 1H), 4.02-3.78 (m, 2.4H), 3.75 (d, J=4.4 Hz, 0.6H), 2.57 (s, 1.2H), 2.39-2.20 (m, 1H), 2.04 (s, 1.8H), 1.87-1.30 (m, 6H).
Prepared analogous to Example 54 substituting 2-methylpyridin-3-ol with pyridin-3-ol. MS (ESI) mass calcd. for C21H22N6O2, 390.2; m/z found 391.2 [M+H]+. 1H NMR (DMSO-D6): 8.33 (d, J=2.7 Hz, 0.4H), 8.21-8.05 (m, 4.6H), 7.55 (d, J=8.4 Hz, 0.4H), 7.46-7.25 (m, 2.6H), 4.58 (t, J=4.8 Hz, 1H), 3.95-3.80 (m, 2.4H), 3.77 (d, J=4.4 Hz, 0.6H), 2.57 (s, 1.2H), 2.38-2.18 (m, 1H), 2.02 (s, 1.8H), 1.85-1.31 (m, 6H).
Prepared analogous to Example 53 substituting 2-chloropyridazine with 2-chloropyrimidine. MS (ESI) mass calcd. for C20H21N7O2, 391.2; m/z found 392.2 [M+H]+. 1H NMR (DMSO-D6): 8.65 (d, J=4.8 Hz, 0.8H), 8.59 (d, J=4.8 Hz, 1.2H), 8.22-8.02 (m, 3H), 7.56 (d, J=8.4 Hz, 0.4H), 7.44 (d, J=8.4 Hz, 0.6H), 7.19-7.13 (m, 1H), 4.59 (t, J=4.5 Hz, 0.6H), 4.55 (d, J=4.4 Hz, 0.4H), 4.24-4.04 (m, 2H), 3.85 (t, J=4.3 Hz, 0.4H), 3.78 (d, J=4.0 Hz, 0.6H), 2.58 (s, 1.2H), 2.39-2.21 (m, 1H), 2.11 (s, 1.8H), 1.86-1.29 (m, 6H).
Prepared analogous to Example 53 substituting 2-chloropyridazine with 2-pyrazine. MS (ESI) mass calcd. for C20H21N7O2, 391.2; m/z found 392.2 [M+H]+.
Prepared analogous to Example 55 substituting 3-methylpyridin-2-ol with pyrimidin-4-ol. MS (ESI) mass calcd. for C20H21N7O2, 391.2; m/z found 392.2 [M+H]+. The product is present as a mixture of conformers (ratio ca. 50:50) 1H NMR (300 MHz, DMSO) 8.84 (s, 0.5H), 8.77 (s, 0.5H), 8.53 (d, J=5.8 Hz, 0.5H), 8.49 (d, J=5.8 Hz, 0.5H), 8.22-8.01 (m, 3H), 7.55 (d, J=8.4 Hz, 0.5H), 7.43 (d, J=8.4 Hz, 0.5H), 7.00 (d, J=5.7 Hz, 0.5H), 6.85 (d, J=5.8 Hz, 0.5H), 4.58 (t, J=3.7 Hz, 0.5H), 4.53 (d, J=4.2 Hz, 0.5H), 4.25-4.04 (m, 2H), 3.85 (t, J=3.7 Hz, 0.5H), 3.75 (d, J=3.9 Hz, 0.5H), 2.57 (s, 1.5H), 2.40-2.16 (m, 1H), 2.12 (s, 1.5H), 1.85-1.31 (m, 6H).
Prepared analogous to Example 55 substituting 3-methylpyridin-2-ol with 6-methylpyridin-2-ol. MS (ESI) mass calcd. for C22H24N6O2, 404.2; m/z found 405.2 [M+H]+. 1H NMR (DMSO-D6): 8.17 (d, J=8.4 Hz, 0.5H), 8.12 (d, J=8.4 Hz, 0.5H), 8.10 (s, 1H), 8.06 (s, 1H), 7.63-7.49 (m, 1.5H), 7.41 (d, J=8.4 Hz, 0.5H), 6.85 (d, J=7.2 Hz, 0.5H), 6.81 (d, J=7.2 Hz, 0.5H), 6.64 (d, J=8.2 Hz, 0.5H), 6.46 (d, J=8.2 Hz, 0.5H), 4.58 (t, J=4.4 Hz, 0.5H), 4.54 (d, J=4.5 Hz, 0.5H), 4.16-3.95 (m, 2H), 3.83 (t, J=4.4 Hz, 0.5H), 3.74 (d, J=4.4 Hz, 0.5H), 2.58 (s, 1.5H), 2.43 (s, 1.5H), 2.37 (s, 1.5H), 2.33-2.14 (m, 1H), 2.11 (s, 1.5H), 1.85-1.31 (m, 6H).
Prepared analogous to Example 7 substituting intermediate A-21 with intermediate A-43. MS (ESI) mass calcd. for C22H21FN4O3, 408.2; m/z found 409.2 [M+H].
Prepared analogous to Example 7 substituting intermediate A-21 with 6-methyl-3-(pyrimidin-2-yl)picolinic acid. MS (ESI) mass calcd. for C23H22FN5O2, 419.2; m/z found 420.2 [M+H]+. 1H NMR (DMSO-D6): 8.91 (d, J=4.9 Hz, 0.8H), 8.84 (d, J=4.9 Hz, 1.2H), 8.33-8.29 (m, 1H), 8.22 (d, J=3.1 Hz, 0.4H), 8.13 (d, J=3.1 Hz, 0.6H), 7.76-7.59 (m, 1H), 7.53-7.41 (m, 1.4H), 7.35 (d, J=8.1 Hz, 0.6H), 6.94 (dd, J=9.1, 3.6 Hz, 0.4H), 6.75 (dd, J=9.1, 3.6 Hz, 0.6H), 4.59 (t, J=4.1 Hz, 0.6H), 4.56 (d, J=3.8 Hz, 0.4H), 4.16 (dd, J=14.6, 6.2 Hz, 1H), 4.08-3.97 (m, 1H), 3.87 (br s, 0.4H), 3.76 (d, J=3.9 Hz, 0.6H), 2.56 (s, 1.2H), 2.39-2.15 (m, 1H), 2.10 (s, 1.8H), 1.91-1.32 (m, 6H).
Prepared analogous to Example 7 substituting intermediate A-21 with 3,6′-dimethyl-[2,3′-bipyridine]-2′-carboxylic acid. MS (ESI) mass calcd. for C25H25FN4O2, 432.2; m/z found 433.2 [M+H]+. 1H NMR (DMSO-D6): 8.33 (t, J=5.1 Hz, 1H), 8.16 (s, 1H), 7.79-7.60 (m, 3H), 7.40 (d, J=7.9 Hz, 0.5H), 7.32-7.23 (m, 1H), 7.20 (dd, J=7.6, 4.8 Hz, 0.5H), 6.85 (dd, J=9.1, 3.6 Hz, 0.5H), 6.80 (dd, J=9.1, 3.6 Hz, 0.5H), 4.39 (brs, 0.5H), 4.35 (d, J=4.1 Hz, 0.5H), 4.19 (t, J=10.3 Hz, 0.5H), 4.04 (dd, J=10.4, 5.2 Hz, 0.5H), 3.90 (d, J=4.8 Hz, 0.5H), 3.85 (t, J=4.0 Hz, 0.5H), 3.75-3.53 (m, 1H), 2.56 (s, 1.5H), 2.22 2.17 (m, 3.5H), 2.11 (s, 1.5H), 1.90-1.81 (m, 0.5H), 1.79-1.17 (m, 6H).
Prepared analogous to Example 7 substituting intermediate A-21 with 6-methyl-3-(3-methyl-1,2,4-oxadiazol-5-yl)picolinic acid. MS (ESI) mass calcd. for C22H22FN5O3, 423.2; m/z found 424.2 [M+H]+. 1H NMR (DMSO-D6): 8.33 (d, J=8.1 Hz, 0.4H), 8.28 (d, J=8.1 Hz, 0.6H), 8.14 (d, J=3.1 Hz, 0.4H), 8.10 (d, J=3.1 Hz, 0.6H), 7.76-7.60 (m, 1H), 7.58 (d, J=8.2 Hz, 0.4H), 7.47 (d, J=8.2 Hz, 0.6H), 6.95 (dd, J=3.6, 9.2 Hz, 0.4H), 6.72 (dd, J=3.6, 9.2 Hz, 0.6H), 4.67 (t, J=4.5 Hz, 0.6H), 4.62 (d, J=4.6 Hz, 0.4H), 4.16-3.92 (m, 2H), 3.81 (t, J=4.3 Hz, 0.4H), 3.73 (d, J=4.6 Hz, 0.6H), 2.60 (s, 1.2H), 2.41 (s, 1.2H), 2.38 (s, 1.8H), 2.37-2.19 (m, 1H), 2.18 (s, 1.8H), 1.90-1.30 (m, 6H).
Prepared analogous to Example 7 substituting intermediate A-21 with 6-methyl-3-(3-methyl-1H-pyrazol-1-yl)picolinic acid. MS (ESI) mass calcd. for C23H24FN5O2, 421.2; m/z found 422.2 [M+H]+. MP=123.2° C.
Step A: 6-methyl-3-(pyrrolidin-1-yl)picolinonitrile. To 2-bromo-6-methyl-3-(2H-1,2,3-triazol-2-yl)pyridine (720 mg, 3.7 mmol), pyrrolidine (450 μL, 5.5 mmol), Pd(OAc)2 (25 mg, 11 mol %), XPhos (122 mg, 25 mol %) and Cs2CO3 (2.4 g, 7.3 mmol) in a sealed tube was added PhCH3. The vessel was sealed and heated at 100° C. overnight. After cooling to rt, the reaction was diluted with EtOAc and H2O. The organic layer was dried (MgSO4) and concentrated. Purification via silica gel chromatography (0-50% EtOAc in DCM) gave the title compound (186 mg, 27%).
Step B: 6-methyl-3-(pyrrolidin-1-yl)picolinic acid. To the title compound of Step A (162 mg, 0.9 mmol) in EtOH (2.6 mL) was added 4M KOH (650 μL, 2.6 mmol). The reaction was then heated at 90° C. for 18 h. Additional 4M KOH (1.5 mL, 6 mmol) was added and heating continued overnight. The reaction was then cooled to rt, acidified with 1N HCl (aq), concentrated and used without further purification in the next step.
Step C: (±)-(2-(((5-fluoropyridin-2-yl)oxy)methyl)-7-azabicyclo[2.2.1]heptan-7-yl)(6-methyl-3-(pyrrolidin-1-yl)pyridin-2-yl)methanone Prepared analogous to Example 7 substituting intermediate A-9 with the title compound from Step B. MS (ESI) mass calcd. for C23H27FN4O2, 410.2; m/z found 411.2 [M+H]+. 1H NMR (DMSO-D6): 8.14 (d, J=3.0 Hz, 0.5H), 8.10 (d, J=3.0 Hz, 0.5H), 7.68-7.38 (m, 2H), 6.92 (dd, J=9.1, 3.6 Hz, 0.5H), 6.71 (dd, J=9.1, 3.6 Hz, 0.5H), 4.66 (br s, 0.5H), 4.60 (br s, 0.5H), 4.08-3.01 (m, 7H), 2.45 (s, 1.5H), 2.40-2.01 (m, 2.5H), 1.94-1.30 (m, 10H).
Prepared analogous to Example 7 substituting intermediate A-21 with 6-methyl-3-(3-methylisoxazol-5-yl)picolinic acid. MS (ESI) mass calcd. for C23H23FN4O3, 422.2; m/z found 423.2 [M+H]+. 1H NMR (DMSO-D6): 8.11 (dt, J=10.0, 5.4 Hz, 2H), 7.77-7.55 (m, 1H), 7.50 (d, J=8.2 Hz, 0.4H), 7.38 (d, J=8.2 Hz, 0.6H), 6.94 (dd, J=9.1, 3.6 Hz, 0.4H), 6.70 (dd, J=9.1, 3.6 Hz, 0.6H), 6.62 (d, J=1.6 Hz, 1H), 4.67 (t, J=4.6 Hz, 0.6H), 4.61 (d, J=4.7 Hz, 0.4H), 3.98-3.88 (m, 2H), 3.60 (t, J=4.5 Hz, 0.4H), 3.54 (d, J=3.8 Hz, 0.6H), 2.55 (s, 1.2H), 2.38-2.14 (m, 4H), 2.12 (s, 1.8H), 1.86-1.13 (m, 6H).
Prepared analogous to Example 63 substituting 6-methyl-3-(oxazol-2-yl)picolinic acid with 6-methyl-3-(1H-pyrazol-1-yl)picolinic acid. MS (ESI) mass calcd. for C22H22FN5O2, 407.2; m/z found 408.2 [M+H]+. 1H NMR (DMSO-D6): 8.17 (d, J=3.1 Hz, 0.5H), 8.13 (d, J=3.1 Hz, 0.5H), 8.08 (t, J=2.4 Hz, 1H), 7.95 (t, J=8.5 Hz, 1H), 7.74-7.61 (m, 2H), 7.49 (d, J=8.3 Hz, 0.5H), 7.36 (d, J=8.4 Hz, 0.5H), 6.91 (dd, J=9.1, 3.6 Hz, 0.5H), 6.72 (dd, J=9.1, 3.6 Hz, 0.5H), 6.52-6.49 (m, 0.5H), 6.49-6.46 (m, 0.5H), 4.55 (t, J=4.5 Hz, 0.5H), 4.50 (d, J=4.7 Hz, 0.5H), 3.94 (d, J=7.6 Hz, 2H), 3.67 (t, J=4.2 Hz, 0.5H), 3.59 (d, J=4.5 Hz, 0.5H), 2.54 (s, 1.5H), 2.30-2.11 (m, 1H), 2.07 (s, 1.5H), 1.76-1.14 (m, 6H).
Prepared analogous to Example 2 substituting intermediate A-9 with 5-methyl-3-(2H-1,2,3-triazol-2-yl)picolinic acid. MS (ESI) mass calcd. for C21H22N6O2, 390.2; m/z found 391.0 [M+H]+. MP=159.7° C.
Prepared analogous to Example 2 substituting intermediate A-9 with 4-methyl-3-(2H-1,2,3-triazol-2-yl)picolinic acid. MS (ESI) mass calcd. for C21H22N6O2, 390.2; m/z found 391.0 [M+H]+. MP=114.5° C.
Step A: 3-(dimethylamino)-6-methylpicolinamide. A mixture of 3-bromo-6-methylpicolinonitrile (1 g, 5 mmol) and dimethylamine (2 mL) were heated in a microwave reactor for 2 h at 140° C. The mixture was then concentrated and purified via silica gel chromatography (0-5% MeOH in DCM) to give the title compound (249 mg, 27%). MS (ESI) mass calcd. for C9H13N3O, 179.1; m/z found 180.0 [M+H].
Step B: 3-(dimethylamino)-6-methylpicolinic acid. To the title compound of Step A (91 mg, 0.5 mmol) in EtOH (1 mL) was added 4M KOH (0.5 μL). The reaction was then heated at 90° C. for 18 h. The reaction was then cooled to rt, acidified with 1N HCl (aq) to pH=3, concentrated and used without further purification in the next step.
Step C: Prepared analogous to Example 2 substituting intermediate A-9 with the title compound of Step B. MS (ESI) mass calcd. for C21H26N4O2, 366.2; m/z found 367 [M+H]+.
Prepared analogous to Example 2 substituting intermediate A-9 with 3-(2H-1,2,3-triazol-2-yl)quinoline-2-carboxylic acid. MS (ESI) mass calcd. for C24H22N6O2, 426.2; m/z found 427.2 [M+H]+. 1H NMR (DMSO-D6): 8.93 (s, 0.5H), 8.87 (s, 0.5H), 8.26-8.09 (m, 2H), 7.96-7.86 (m, 0.5H), 7.82-7.51 (m, 5H), 7.33 (d, J=8.4 Hz, 0.5H), 7.00 (t, J=6.0 Hz, 1H), 6.87 (d, J=8.3 Hz, 0.5H), 6.52 (d, J=8.3 Hz, 0.5H), 4.70-4.57 (m, 1H), 4.33 (t, J=10.5 Hz, 0.5H), 4.24-4.05 (m, 1.5H), 4.00 (br t, J=3.8 Hz, 0.5H), 3.93 (d, J=3.6 Hz, 0.5H), 2.44-2.20 (m, 1H), 2.01-1.35 (m, 6H).
Prepared analogous to Example 2 substituting intermediate A-9 with intermediate A-29. MS (ESI) mass calcd. for C24H25N3O3, 403.2; m/z found 404.2 [M+H]+. 1H NMR (DMSO-D6): 9.02-8.54 (m, 1.6H), 8.42 (d, J=7.9 Hz, 0.8H), 8.31-7.83 (m, 2.2H), 7.83-6.75 (m, 3.8H), 6.64-6.46 (m, 0.2H), 6.24 (m, 0.4H), 4.86-4.62 (m, 1.2H), 4.46-4.01 (m, 3.6H), 3.61-3.23 (m, 1.2H), 2.44-2.06 (m, 1H), 2.06-1.15 (m, 9H).
Step A: 3,6-dimethylimidazo[1,2-a]pyridine-5-carboxylic acid. Prepared analogous to Example 82 substituting chloroacetaldehyde with 2-bromopropanal. MS (ESI) mass calcd. for C10H10N2O2, 190.1; m/z found 191.0 [M+H]+.
Step B: (±)-(3,6-dimethylimidazo[1,2-a]pyridin-5-yl)(2-((pyridin-2-yloxy)methyl)-7-azabicyclo[2.2.1]heptan-7-yl)methanone. Prepared analogous to Example 2 substituting intermediate A-9 with the title compound of Step A. MS (ESI) mass calcd. for C22H24N4O2, 376.2; m/z found 377.2 [M+H]+. The product is present as a mixture of conformers (ratio ca. 85:15). 1H NMR (300 MHz, DMSO) 8.18 (dd, J=4.5, 1.4 Hz, 0.85H), 7.91 (d, J=5.1 Hz, 0.15H), 7.74 (td, J=7.1, 1.8 Hz, 0.85H), 7.53 (d, J=9.1 Hz, 0.85H), 7.50-7.39 (m, 0.15H), 7.36 (s, 1H), 7.12 (dd, J=6.3 Hz, 1H), 7.06-6.95 (m, 0.85H), 6.88 (d, J=8.4 Hz, 0.85H), 6.72 (d, J=8.6 Hz, 0.15H), 6.62 (d, J=7.4 Hz, 0.15H), 6.46 (d, J=8.5 Hz, 0.15H), 4.77 (d, J=4.4 Hz, 0.85H), 4.72 (d, J=3.6 Hz, 0.15H), 4.25-4.10 (m, 1H), 4.10-3.98 (m, 1H), 3.78 (br s, 0.85H), 3.69 (br s, 0.15H), 2.48-2.38 (m, 1.85H), 2.36 (s, 2H), 2.30 (s, 2H), 2.25-2.21 (m, 0.85H), 2.20-2.16 (m, 0.3H), 1.98-1.32 (m, 6H).
Prepared analogous to Example 2 substituting intermediate A-9 with 1-methyl-4-phenyl-1H-pyrazole-3-carboxylic acid. MS (ESI) mass calcd. for C23H24N4O2, 388.2; m/z found 389.2 [M+H]+. 1H NMR (DMSO-D6): 8.18 (d, J=3.8 Hz, 0.5H), 8.08 (d, J=3.9 Hz, 0.5H), 8.03 (s, 0.5H), 7.92 (s, 0.5H), 7.76-7.62 (m, 1H), 7.46-7.16 (m, 5H), 7.04-6.90 (m, 1H), 6.84 (d, J=8.3 Hz, 0.5H), 6.71 (d, J=8.3 Hz, 0.5H), 4.60 (t, J=4.6 Hz, 0.5H), 4.56 (d, J=4.7 Hz, 0.5H), 4.15 (br s, 1H), 4.06 (br s, 1H), 3.98-3.83 (m, 2.5H), 3.55 (s, 1.5H), 2.29-2.15 (m, 1H), 1.79-1.22 (m, 6H).
Prepared analogous to Example 2 substituting intermediate A-9 with 1-methyl-3-phenyl-1H-pyrazole-4-carboxylic acid. MS (ESI) mass calcd. for C23H24N4O2, 388.2; m/z found 389.2 [M+H]+. 1H NMR (DMSO-D6): 8.16 (br s, 1H), 8.09-7.75 (m, 1H), 7.70 (t, J=7.2 Hz, 1H), 7.58 (d, J=7.0 Hz, 2H), 7.47-7.20 (m, 3H), 7.10-6.90 (m, 1H), 6.92-6.52 (br s, 1H), 4.48 (br s, 1H), 4.21-3.44 (m, 6H), 2.17 (br s, 1H), 1.86-1.05 (m, 6H).
Step A: Prepared analogous to Example 76 substituting 6-amino-3-methylpicolinic acid with 2-amino-4-methylnicotinic acid.
Step B: (±)-((3,7-dimethylimidazo[1,2-a]pyridin-8-yl)(2-((pyridin-2-yloxy)methyl)-7-azabicyclo[2.2.1]heptan-7-yl)methanone. Prepared analogous to Example 2 substituting intermediate A-9 with 3,7-dimethylimidazo[1,2-a]pyridine-8-carboxylic acid. MS (ESI) mass calcd. for C22H24N4O2, 376.2; m/z found 377.2 [M+H]+. 1H NMR (DMSO-D6): 8.24-8.03 (m, 2H), 7.80-7.68 (m, 0.5H), 7.61 (br s, 0.5H), 7.30 (s, 1H), 7.06-6.27 (m, 3H), 4.70 (t, J=4.3 Hz, 1H), 4.32-3.67 (m, 2H), 3.42 (m, 2H), 2.45 (s, 2H), 2.38-2.02 (m, 4H), 2.02-1.18 (m, 6H).
Step A: 7-methylimidazo[1,2-a]pyridine-8-carboxylic acid. Prepared analogous to Example 82 substituting 6-amino-3-methylpicolinic acid with 2-amino-4-methylnicotinic acid.
Step B: (±)-(7-methylimidazo[1,2-a]pyridin-8-yl)(2-((pyridin-2-yloxy)methyl)-7-azabicyclo[2.2.1]heptan-7-yl)methanone Prepared analogous to Example 2 substituting intermediate A-9 with the title compound of Step A. MS (ESI) mass calcd. for C21H22N4O2, 362.2; m/z found 363.2 [M+H]+. 1H NMR (DMSO-D6): 8.46 (d, J=6.9 Hz, 0.5H), 8.38 (d, J=6.3 Hz, 0.5H), 8.17 (d, J=3.6 Hz, 0.5H), 8.12 (d, J=3.8 Hz, 0.5H), 7.91 (s, 1H), 7.79-7.39 (m, 2H), 7.14-6.70 (m, 2H), 6.70-6.33 (m, 1H), 4.71 (br s, 1H), 4.45-3.66 (m, 2H), 3.63-3.22 (m, 2H), 2.44-2.02 (m, 3H), 2.02-1.08 (m, 6H).
Prepared analogous to Example 2 substituting intermediate A-9 with 1-methyl-4-phenyl-1H-pyrazole-5-carboxylic acid. MS (ESI) mass calcd. for C23H24N4O2, 388.2; m/z found 389.2 [M+H]+. 1H NMR (DMSO-D6): 8.19 (d, J=3.8 Hz, 0.6H), 8.09 (d, J=4.0 Hz, 0.4H), 7.79-7.57 (m, 2H), 7.43-7.19 (m, 5H), 7.05-6.91 (m, 1H), 6.84 (d, J=8.3 Hz, 0.6H), 6.62 (d, J=8.3 Hz, 0.4H), 4.62 (t, J=4.5 Hz, 0.4H), 4.57 (d, J=4.5 Hz, 0.6H), 3.96-3.87 (m, 2H), 3.85 (s, 1.8H), 3.79 (s, 1.2H), 3.58 (t, J=4.3 Hz, 0.6H), 3.52 (d, J=4.7 Hz, 0.4H), 2.28-2.02 (m, 1H), 1.76-1.07 (m, 6H).
Step A: 6-amino-3-methylpicolinic acid. To methyl 6-amino-3-bromopicolinate (500 mg, 2.2 mmol), tetramethylstannane (900 μL, 6.5 mmol) and LiCl (354 mg, 8.7 mmol) in DMF (6 mL) was added Pd(PPh3)4 (76 mg, 10 mol %). The reaction mixture was heated at 110° C. for 3 h. Additional tetramethylstannane, LiCl and Pd(PPh3)4 were added and heating continued for 6 h. Purification via silica gel chromatography (0-20% MeOH in DCM) gave the title compound.
Step B: 6-methylimidazo[1,2-a]pyridine-5-carboxylic acid. To the title compound of Step A (340 mg, 2.2 mmol) in H2O (7 mL) was added 1M aq. NaOH (2.2 mL, 2.2 mmol) and chloroacetaldehyde (210 μL, 3.4 mmol) and the reaction mixture heated in a microwave reactor at 150° C. for 2 h. Additional 1M aq. NaOH (2.2 mL, 2.2 mmol) and chloroacetaldehyde (210 μL, 3.4 mmol) were added and heating continued at 150° C. for 2 h. The reaction was purified via prep HPLC to give the title compound (282 mg, 72%). MS (ESI) mass calcd. for C9H8N2O2, 176.1; m/z found 177.0 [M+H]+.
Step C: (±)-((6-methylimidazo[1,2-a]pyridin-5-yl)(2-((pyridin-2-yloxy)methyl)-7-azabicyclo[2.2.1]heptan-7-yl)methanone. Prepared analogous to Example 2 substituting intermediate A-9 with 6-methylimidazo[1,2-a]pyridine-5-carboxylic acid. The product is present as a mixture of conformers (ratio ca. 80:20) 1H NMR (300 MHz, DMSO) 8.44-8.13 (m, 1.6H), 8.13-7.86 (m, 3H), 7.86-7.41 (m, 1.2H), 6.97 (br d, J=33.5 Hz, 1.6H), 6.68 (br d, J=1.0 Hz, 0.2H), 6.39 (br d, J=1.0 Hz, 0.4H), 4.80 (d, J=16.5 Hz, 1.6H), 4.09-4.06 (m, 0.2H), 3.58 (s, 2H), 3.46-3.30 (m, 0.2H), 2.47-2.07 (m, 4H), 2.07-1.02 (m, 6H).
Prepared analogous to Example 164 substituting intermediate B-9 with intermediate B-10. MS (ESI) mass calcd. for C24H25N3O3, 403.2; m/z found 404.2 [M+H]+.
Prepared analogous to Example 2 substituting intermediate A-9 with intermediate A-51. MS (ESI) mass calcd. for C23H24N4O2, 388.2; m/z found 389.2 [M+H]+.
Step A: 6-methyl-3-(4-methylpiperazin-1-yl)picolinonitrile. Prepared analogous to Example 68 substituting pyrrolidine with 1-methylpiperazine. MS (ESI) mass calcd. for C12H16N4, 216.1; m/z found 217.0 [M+H]+.
Step B: 6-methyl-3-(4-methylpiperazin-1-yl)picolinic acid. Prepared analogous to Example 68 substituting 6-methyl-3-(pyrrolidin-1-yl)picolinonitrile with the title compound of Step A. MS (ESI) mass calcd. for C12H17N3O2, 235.1; m/z found 236.0 [M+H]+.
Step C: Prepared analogous to Example 2 substituting intermediate A-9 with the title compound of Step B. MS (ESI) mass calcd. for C24H31N5O2, 421.2; m/z found 422.2 [M+H]+. 1H NMR (DMSO-D6): 8.19-8.14 (m, 0.5H), 8.12 (dd, J=5.0, 1.5 Hz, 0.5H), 7.78-7.68 (m, 0.5H), 7.68-7.59 (m, 0.5H), 7.52 (d, J=8.4 Hz, 0.5H), 7.37 (d, J=8.4 Hz, 0.5H), 7.23 (d, J=8.4 Hz, 0.5H), 7.07 (d, J=8.3 Hz, 0.5H), 6.97 (ddd, J=12.3, 6.7, 5.4 Hz, 1H), 6.87 (d, J=8.3 Hz, 0.5H), 6.59 (d, J=8.3 Hz, 0.5H), 4.63 (t, J=4.5 Hz, 0.5H), 4.59 (d, J=3.9 Hz, 0.5H), 4.19-3.81 (m, 2H), 3.46 (t, J=3.9 Hz, 0.5H), 3.39 (d, J=4.7 Hz, 0.5H), 3.07-2.92 (m, 2H), 2.92-2.78 (m, 2H), 2.46-2.27 (m, 6H), 2.22-2.05 (m, 3.5H), 1.97 (s, 1.5H), 1.94-1.27 (m, 6H).
Step A: tert-butyl 4-(2-cyano-6-methylpyridin-3-yl)piperazine-1-carboxylate. Prepared analogous to Example 68 substituting pyrrolidine with tert-butyl piperazine-1-carboxylate. MS (ESI) mass calcd. for C16H22N4O2, 302.2; m/z found 303.0 [M+H]+.
Step B: 3-(4-(tert-butoxycarbonyl)piperazin-1-yl)-6-methylpicolinic acid.
Prepared analogous to Example 68 substituting 6-methyl-3-(pyrrolidin-1-yl)picolinonitrile with the title compound of Step A. MS (ESI) mass calcd. for C16H23N3O4, 321.2; m/z found 322.0 [M+H]+.
Step C: tert-butyl 4-(6-methyl-2-((±)-2-((pyridin-2-yloxy)methyl)-7-azabicyclo[2.2.1]heptane-7-carbonyl)pyridin-3-yl)piperazine-1-carboxylate. Prepared analogous to example 2 substituting intermediate A-9 with the title compound of Step B.
Step D: (±)-(6-methyl-3-(piperazin-1-yl)pyridin-2-yl)(2-((pyridin-2-yloxy)methyl)-7-azabicyclo[2.2.1]heptan-7-yl)methanone. To the title compound from step C (182 mg, 0.4 mmol) in 1,4-dioxane (1 mL) was added 6N HCl in iPrOH (400 μL). The reaction was heated to 70° C. for 3 h, cooled to rt, concentrated and purified via reverse phase chromatography. The mixture was dissolved with a saturated NaHCO3 (aq) and extracted with DCM (×3). The organic layers were dried over MgSO4 and concentrated. The crude product was triturated with diethyl ether and n-pentane to give the title compound (5 mg, 3%). MS (ESI) mass calcd. for C23H29N5O2, 407.2; m/z found 408.2 [M+H]+. 1H NMR (DMSO-D6): 8.17 (d, J=4.0 Hz, 0.4H), 8.12 (d, J=3.8 Hz, 0.6H), 7.72 (t, J=7.6 Hz, 0.4H), 7.63 (t, J=6.9 Hz, 0.6H), 7.48 (d, J=8.3 Hz, 0.4H), 7.34 (d, J=8.3 Hz, 0.6H), 7.22 (d, J=8.3 Hz, 0.4H), 7.06 (d, J=8.3 Hz, 0.6H), 7.02-6.90 (m, 1H), 6.86 (d, J=8.1 Hz, 0.4H), 6.58 (d, J=8.3 Hz, 0.6H), 4.63-4.60 (m, 1H), 4.14-3.92 (m, 2H), 3.86 (t, J=10.4 Hz, 1H), 2.99-2.65 (m, 8H), 2.39 (s, 1H), 2.34-2.28 (m, 1H), 2.18-2.11 (m, 1H), 1.96-1.88 (m, 2H), 1.86-1.20 (m, 6H).
Step A: 6-methyl-3-morpholinopicolinonitrile. Prepared analogous to Example 68 substituting pyrrolidine with morpholine. MS (ESI) mass calcd. for C11H13N3O, 203.1; m/z found 204.0 [M+H]+.
Step B: 6-methyl-3-morpholinopicolinic acid. Prepared analogous to Example 68 substituting 6-methyl-3-(pyrrolidin-1-yl)picolinonitrile with the title compound of Step A. MS (ESI) mass calcd. for C11H14N2O3, 222.1; m/z found 223.0 [M+H]+.
Step C: Prepared analogous to Example 2 substituting intermediate A-9 with the title compound of Step B. MS (ESI) mass calcd. for C23H28N4O3, 408.2; m/z found 409.2 [M+H]+.
Step A: 7-methoxyquinoline-8-carboxylic acid. In 1 g separate batches a mixture of 2-amino-6-methoxybenzoic acid (1 g, 66 mmol) and acrolein (4.8 mL, 72 mmol) in 1,4-dioxane (66 mL) was heated in a microwave reactor for 20 min at 200° C. After combining the reactions, the mixture was concentrated and purified via silica gel chromatography (0-10% MeOH in DCM) to give the title compound (2.8 g, 20%). MS (ESI) mass calcd. for C11H19NO3, 203.1; m/z found 204.0 [M+H]+.
Step B: Prepared analogous to Example 2 substituting intermediate A-9 with the title compound of Step A. MS (ESI) mass calcd. for C23H23N3O3, 389.2; m/z found 390.2 [M+H]+.
Prepared analogous to Example 2 substituting intermediate A-9 with 2-ethoxy-1-naphthoic acid. MS (ESI) mass calcd. for C25H26N2O3, 402.2; m/z found 403.2 [M+H]+.
Prepared analogous to Example 2 substituting intermediate A-9 with 3,6′-dimethyl-[2,3′-bipyridine]-2′-carboxylic acid. MS (ESI) mass calcd. for C25H26N4O2, 414.2; m/z found 415.2 [M+H]+.
Prepared analogous to Example 2 substituting intermediate A-9 with 3-(2H-1,2,3-triazol-2-yl)picolinic acid. MS (ESI) mass calcd. for C20H20N6O2, 376.2; m/z found 377.2 [M+H]+. 1H NMR (DMSO-D6): 8.70 (d, J=3.6 Hz, 0.5H), 8.40-7.99 (m, 4.5H), 7.82-7.47 (m, 2H), 7.02-6.85 (m, 1H), 6.86 (d, J=8.2 Hz, 0.6H), 6.64 (d, J=8.1 Hz, 0.4H), 4.62-4.65 (m, 1H), 4.20-3.97 (m, 3H), 2.35-2.24 (m, 1H), 2.00-1.09 (m, 6H).
Prepared analogous to Example 2 substituting intermediate A-9 with 2-methyl-5-phenylthiazole-4-carboxylic acid. MS (ESI) mass calcd. for C23H23N3O2S, 405.2; m/z found 406.2 [M+H]+. 1H NMR (DMSO-D6) 8.18 (dd, J=5.0, 1.4 Hz, 0.5H), 8.10 (dd, J=5.0, 1.4 Hz, 0.5H), 7.77-7.61 (m, 1H), 7.52-7.29 (m, 5H), 7.04-6.89 (m, 1H), 6.82 (d, J=8.3 Hz, 0.5H), 6.69 (d, J=8.3 Hz, 0.5H), 4.57 (t, J=4.5 Hz, 0.5H), 4.52 (d, J=4.7 Hz, 0.5H), 3.90-3.79 (m, 2.5H), 3.69 (t, J=10.6 Hz, 0.5H), 2.69 (s, 1.5H), 2.28 (s, 1.5H), 2.25-2.06 (m, 1H), 1.72-1.04 (m, 6H).
Prepared analogous to Example 2 substituting intermediate A-9 with intermediate A-43. MS (ESI) mass calcd. for C22H22N4O3, 390.2; m/z found 391.2 [M+H]+. 1H NMR (DMSO-D6): 8.22 (dt, J=14.0, 7.8 Hz, 2.5H), 8.12 (dd, J=5.0, 1.4 Hz, 0.5H), 7.78-7.68 (m, 0.5H), 7.68-7.59 (m, 0.5H), 7.49 (d, J=8.2 Hz, 0.5H), 7.41-7.29 (n, 1.5H), 6.97 (ddd, J=14.7, 6.5, 5.2 Hz, 1H), 6.87 (d, J=8.4 Hz, 0.5H), 6.63 (d, J=8.3 Hz, 0.5H), 4.66 (t, J=4.6 Hz, 0.5H), 4.62 (d, J=4.8 Hz, 0.5H), 4.22-3.93 (m, 2H), 3.70 (t, J=4.4 Hz, 0.5H), 3.61 (d, J=4.0 Hz, 0.5H), 2.55 (s, 1.5H), 2.40-2.14 (m, 1H), 2.08 (s, 1.5H), 1.93-1.23 (m, 6H).
Prepared analogous to Example 2 substituting intermediate A-9 with 6-methyl-3-(3-methylisoxazol-5-yl)picolinic acid. MS (ESI) mass calcd. for C23H24N4O3, 404.2; m/z found 405.0 [M+H]+. 1H NMR (DMSO-D6): 8.20-8.02 (m, 2H), 7.73 (t, J=6.9 Hz, 0.4H), 7.65 (t, J=7.7 Hz, 0.6H), 7.50 (d, J=8.1 Hz, 0.4H), 7.37 (d, J=8.2 Hz, 0.6H), 7.03-6.91 (m, 1H), 6.87 (d, J=8.3 Hz, 0.4H), 6.68-6.58 (m, 1.6H), 4.68 (t, J=4.6 Hz, 0.6H), 4.62 (d, J=4.7 Hz, 0.4H), 4.01-3.93 (m, 2H), 3.60 (t, J=4.4, 0.4H), 3.55 (d, J=3.1, 0.6H), 2.55 (s, 1.2H), 2.36-2.14 (m, 4H), 2.09 (s, 1.8H), 1.88-1.07 (m, 6H).
Prepared analogous to Example 2 substituting intermediate A-9 with 6-methyl-3-(1H-pyrazol-1-yl)picolinic acid. 1H NMR (DMSO-D6): 8.19 (dd, J=5.0, 1.4 Hz, 0.5H), 8.14 (dd, J=5.1, 1.5 Hz, 0.5H), 8.08 (t, J=2.9 Hz, 1H), 7.97 (d, J=8.3 Hz, 0.5H), 7.93 (d, J=8.3 Hz, 0.5H), 7.76-7.61 (m, 2H), 7.49 (d, J=8.4 Hz, 0.5H), 7.34 (d, J=8.4 Hz, 0.5H), 6.97 (td, J=7.3, 5.2 Hz, 1H), 6.84 (d, J=8.3 Hz, 0.5H), 6.65 (d, J=8.3 Hz, 0.5H), 6.53-6.48 (m, 0.5H), 6.48-6.43 (m, 0.5H), 4.55 (t, J=4.5 Hz, 0.5H), 4.51 (d, J=4.7 Hz, 0.5H), 4.02-3.93 (m, 2H), 3.67 (t, J=4.1 Hz, 0.5H), 3.60 (d, J=4.5 Hz, 0.5H), 2.54 (s, 1.5H), 2.31-2.11 (m, 1H), 2.04 (s, 1.5H), 1.75-1.16 (m, 6H).
Prepared analogous to Example 2 substituting intermediate A-9 with 6-methyl-3-(4-methyl-1H-pyrazol-1-yl)picolinic acid. MS (ESI) mass calcd. for C23H25N5O2, 403.2; m/z found 404.2 [M+H]+.
Prepared analogous to Example 2 substituting intermediate A-9 with 6-methyl-3-(pyrrolidin-1-yl)picolinic acid (Example 68). MS (ESI) mass calcd. for C23H28N4O2, 392.2; m/z found 393.2 [M+H]+. The product is present as a mixture of conformers (ratio ca. 50:50). 1H NMR (300 MHz, DMSO) 8.14 (dd, J=5.1, 1.4 Hz, 0.5H), 8.11 (dd, J=5.1, 1.4 Hz, 0.5H), 7.76-7.59 (m, 1H), 7.06 (q, J=8.6 Hz, 1H), 7.01-6.90 (m, 2H), 6.85 (d, J=8.3 Hz, 0.5H), 6.69 (d, J=8.3 Hz, 0.5H), 4.61 (t, J=4.6 Hz, 0.5H), 4.58 (d, J=4.7 Hz, 0.5H), 4.19-3.91 (m, 2.5H), 3.88 (d, J=4.6 Hz, 0.5H), 3.28-3.11 (m, 3H), 3.10-2.98 (m, 1H), 2.41-2.18 (m, 2.5H), 2.06 (s, 1.5H), 1.95-1.28 (m, 10H).
Step A: (±)-tert-butyl 2-(((5-fluoropyrimidin-2-yl)oxy)methyl)-7-azabicyclo[2.2.1]heptane-7-carboxylate. To intermediate B-10 (500 mg, 2.2 mmol) in THF (11 mL) at 0° C. was added NaH (176 mg, 60 wt % in mineral oil, 4.4 mmol). After 15 min, 2-chloro-5-fluoropyrimidine (0.3 mL, 2.4 mmol) was added dropwise and the 0° C. ice bath was removed. After 12 h, H2O was added and the reaction extracted with EtOAc. The combined organics dried (Na2SO4). Purification via silica gel chromatography (5-30% EtOAc in heptane) gave the title compound (490 mg, 69%) as a white solid. MS (ESI) mass calcd. for C16H22F3N3O3, 323.4; m/z found 224.1 [M−100]+.
Step B: (±)-2-(((5-fluoropyrimidin-2-yl)oxy)methyl)-7-azabicyclo[2.2.1]heptane. To the title compound from step A (474 mg, 1.5 mmol) in 1,4-dioxane (1.5 mL) was added 6N HCl in iPrOH (1.5 mL). The reaction was heated to 40° C. for 1.5 h and concentrated to give the title compound that was used without further purification in subsequent steps. MS (ESI) mass calcd. for C11H14FN3O, 223.1; m/z found 224.0 [M+H]+.
Step C: (±)-(3,6′-dimethyl-[2,3′-bipyridin]-2′-yl)(2-(((5-fluoropyrimidin-2-yl)oxy)methyl)-7-azabicyclo[2.2.1]heptan-7-yl)methanone. Prepared analogous to example 2 substituting intermediate A-9 with 3,6′-dimethyl-[2,3′-bipyridine]-2′-carboxylic acid and intermediate B-10 with the title compound of Step B. MS (ESI) mass calcd. for C24H24FN5O2, 433.2; m/z found 434.2 [M+H]+. 1H NMR (DMSO-D6): 8.71 (s, 2H), 8.32 (t, J=4.5 Hz, 1H), 7.74 (d, J=7.9 Hz, 1H), 7.66 (t, J=7.3 Hz, 1H), 7.40 (d, J=7.9 Hz, 0.5H), 7.33-7.14 (m, 1.5H), 4.39 (br s, 0.5H), 4.34 (d, J=4.0 Hz, 0.5H), 4.27 (t, J=10.4 Hz, 0.5H), 4.10 (dd, J=5.2, 1.0 Hz, 0.5H), 3.90 (d, J=4.8 Hz, 0.5H), 3.85 (t, J=3.1 Hz, 0.5H), 3.69 (d, J=7.9 Hz, 1H), 2.55 (s, 1.5H), 2.31-2.20 (m, 0.5H), 2.18 (s, 1.5H), 2.16 (s, 1.5H), 2.12 (s, 1.5H), 2.01-1.82 (m, 0.5H), 1.81-1.14 (m, 6H).
Prepared analogous to example 98 substituting 3,6′-dimethyl-[2,3′-bipyridine]-2′-carboxylic acid with 6-methyl-3-(3-methylisoxazol-5-yl)picolinic acid. MS (ESI) mass calcd. for C22H22FN5O3, 423.2; m/z found 424.2 [M+H]+. 1H NMR (DMSO-D6): 8.71 (s, 1H), 8.66 (s, 1H), 8.12 (d, J=8.1 Hz, 0.4H), 8.09 (d, J=8.2 Hz, 0.6H), 7.50 (d, J=8.2 Hz, 0.4H), 7.40 (d, J=8.2 Hz, 0.6H), 6.64-6.63 (m, 1H), 4.68 (t, J=4.6 Hz, 0.6H), 4.60 (d, J=4.7 Hz, 0.4H), 4.11-3.90 (m, 2H), 3.62 (t, J=4.2 Hz, 0.4H), 3.55 (d, J=4.1 Hz, 0.5H), 2.55 (s, 1.2H), 2.40-2.15 (m, 4H), 2.16 (s, 1.8H), 1.88-1.12 (m, 6H).
Prepared analogous to example 98 substituting 3,6′-dimethyl-[2,3′-bipyridine]-2′-carboxylic acid with intermediate A-43. MS (ESI) mass calcd. for C21H20FN5O3, 409.2; m/z found 410.2 [M+H]+. 1H NMR (DMSO-D6): 8.74 (s, 0.8H), 8.66 (s, 1.2H), 8.31-8.16 (m, 2H), 7.50 (d, J=8.2 Hz, 0.4H), 7.38 (t, J=8.9 Hz, 1.6H), 4.67 (t, J=4.5 Hz, 0.6H), 4.62 (d, J=4.7 Hz, 0.4H), 4.23 (t, J=10.1 Hz, 0.4H), 4.07 (dt, J=10.0, 6.2 Hz, 1.6H), 3.72 (t, J=4.2 Hz, 0.4H), 3.62 (d, J=4.4 Hz, 0.6H), 2.56 (s, 1.2H), 2.43-2.19 (m, 1H), 2.16 (s, 1.8H), 1.93-1.23 (m, 6H).
Prepared analogous to example 98 substituting 3,6′-dimethyl-[2,3′-bipyridine]-2′-carboxylic acid with 6-methyl-3-(pyrrolidin-1-yl)picolinic acid (example 68). MP=130° C.
Prepared analogous to example 98 substituting 3,6′-dimethyl-[2,3′-bipyridine]-2′-carboxylic acid with intermediate A-9. MS (ESI) mass calcd. for C22H21FN6O2, 420.2; m/z found 421.2 [M+H]+. 1H NMR (DMSO-D6): 8.93 (d, J=4.9 Hz, 0.8H), 8.88 (d, J=4.9 Hz, 1.2H), 8.79 (s, 0.8H), 8.72 (s, 1.2H), 8.37-8.33 (m, 1H), 7.55-7.47 (m, 1.2H), 7.40 (d, J=8.1 Hz, 0.6H), 4.67-4.61 (br s, 0.6H), 4.59 (d, J=4.0 Hz, 0.4H), 4.33-4.22 (m, 1H), 4.18-4.07 (m, 1H), 3.91 (br s, 0.4H), 3.81 (d, J=3.4 Hz, 0.6H), 2.59 (s, 1.4H), 2.48-2.25 (m, 1H), 2.15 (s, 1.8H), 1.93-1.34 (m, 6H).
Prepared analogous to example 98 substituting 3,6′-dimethyl-[2,3′-bipyridine]-2′-carboxylic acid with 6-methyl-3-(4-methyl-1H-pyrazol-1-yl)picolinic acid. MP=151.2° C. 1H NMR (DMSO-D6): 8.73 (s, 1H), 8.69 (s, 1H), 7.92 (d, J=5.0 Hz, 0.5H), 7.90 (d, J=5.0 Hz, 0.5H), 7.85 (d, J=2.3 Hz, 1H), 7.51-7.54 (m, 1.5H), 7.35 (d, J=8.4 Hz, 0.5H), 4.57 (t, J=4.5 Hz, 0.5H), 4.51 (d, J=4.7 Hz, 0.5H), 4.08-3.90 (m, 2H), 3.66 (t, J=4.0 Hz, 0.5H), 3.60 (d, J=4.0 Hz, 0.5H), 2.53 (s, 1.5H), 2.35-2.14 (m, 1H), 2.10 (s, 1.5H), 2.07 (s, 1.5H), 2.04 (s, 1.5H), 1.77-1.14 (m, 6H).
Prepared analogous to example 98 substituting 3,6′-dimethyl-[2,3′-bipyridine]-2′-carboxylic acid with 6-methyl-3-(1H-pyrazol-1-yl)picolinic acid. MS (ESI) mass calcd. for C21H21FN6O2, 408.2; m/z found 409.2 [M+H]+. MP-119.2° C.
Prepared analogous to Example 7 substituting 6-methyl-3-(2H-1,2,3-triazol-2-yl)picolinic acid with 5-methyl-2-(2H-1,2,3-triazol-2-yl)benzoic acid. (ESI) mass calcd. for C22H22FN5O2, 407.2; m/z found 408.2 [M+H]+. 1H NMR (MeOD): 8.08-7.96 (m, 1H), 7.88 (s, 2H), 7.81-7.73 (m, 1H), 7.56-7.12 (m, 3H), 6.85-6.62 (m, 1H), 4.70-4.67 (m, 1H), 4.25-3.74 (m, 3H), 2.51-1.97 (m, 4H), 1.96-1.31 (m, 6H).
Prepared analogous to example 105 substituting 5-methyl-2-(2H-1,2,3-triazol-2-yl)benzoic acid with 2,6-dimethoxybenzoic acid. MS (ESI) mass calcd. for C21H23FN2O4, 386.2; m/z found 386.9 [M+H]+. 1H NMR (MeOD): 8.02-7.93 (m, 1H), 7.57-7.40 (m, 1H), 7.39-7.21 (m, 1H), 6.87-6.63 (m, 2H), 6.62-6.38 (m, 1H), 4.83-4.65 (m, 1H), 4.49-4.07 (m, 1H), 4.07-3.52 (m, 8H), 2.48-2.09 (m, 1H), 2.06-1.07 (m, 6H).
Prepared analogous to example 105 substituting 5-methyl-2-(2H-1,2,3-triazol-2-yl)benzoic acid with 3-fluoro-2-methoxybenzoic acid. MS (ESI) mass calcd. for C20H20F2N2O3, 374.1; m/z found 375.1 [M+H]+. 1H NMR (MeOD): 8.01-7.90 (m, 1H), 7.56-7.38 (m, 1H), 7.28-7.06 (m, 2H), 7.02-6.53 (m, 2H), 4.82-4.66 (m, 1H), 4.50-3.73 (m, 6H), 2.85-2.22 (m, 1H), 2.21-1.10 (m, 6H).
Prepared analogous to example 105 substituting 5-methyl-2-(2H-1,2,3-triazol-2-yl)benzoic acid with 2-methoxy-6-(2H-1,2,3-triazol-2-yl)benzoic acid. MS (ESI) mass calcd. for C22H22FN5O3, 423.2; m/z found 424.2 [M+H]+. 1H NMR (MeOD): 8.10-7.74 (m, 3H), 7.66-7.41 (m, 3H), 7.25-6.88 (m, 1H), 6.88-6.43 (m, 1H), 4.78-4.64 (m, 1H), 4.51-3.57 (m, 6H), 2.48-0.94 (m, 7H).
Prepared analogous to example 105 substituting 5-methyl-2-(2H-1,2,3-triazol-2-yl)benzoic acid with 5-fluoro-2-(1H-pyrazol-5-yl)benzoic acid. MS (ESI) mass calcd. for C22H20F2N4O2, 410.2; m/z found 411.2 [M+H]+. 1H NMR (MeOD): 8.11-7.90 (m, 1H), 7.80-7.59 (m, 2H), 7.58-7.40 (m, 1H), 7.36-6.94 (m, 2H), 6.88-6.47 (m, 2H), 4.78-4.58 (m, 1H), 4.41-3.47 (m, 3H), 2.69-0.60 (m, 8H).
Prepared analogous to example 105 substituting 5-methyl-2-(2H-1,2,3-triazol-2-yl)benzoic acid with 2-methyl-6-(2H-1,2,3-triazol-2-yl)benzoic acid. MS (ESI) mass calcd. for C22H22FN5O2, 407.2; m/z found 408.2 [M+H]+. 1H NMR (MeOD): 8.11-7.62 (m, 4H), 7.59-6.48 (m, 4H), 4.78-4.68 (m, 1H), 4.50-3.37 (m, 3H), 2.80-0.82 (m, 10H).
Prepared analogous to example 105 substituting 5-methyl-2-(2H-1,2,3-triazol-2-yl)benzoic acid with 6-methyl-3-(2H-1,2,3-triazol-2-yl)picolinic acid. MS (ESI) mass calcd. for C21H21FN6O2, 408.2; m/z found 409.2 [M+H]+. 1H NMR (MeOD): 8.28-8.19 (m, 1H), 8.06-7.88 (m, 3H), 7.57-7.35 (m, 2H), 6.89-6.60 (m, 1H), 4.76-4.73 (m, 1H), 4.32-4.02 (m, 2H), 3.93-3.80 (m, 1H), 2.70-2.20 (m, 4H), 2.05-1.42 (m, 6H).
Prepared analogous to example 105 substituting 5-methyl-2-(2H-1,2,3-triazol-2-yl)benzoic acid with sodium 5-chloro-3-(2H-1,2,3-triazol-2-yl)picolinate. MS (ESI) mass calcd. for C20H18ClFN6O2, 428.1; m/z found 429.1 [M+H]+. 1H NMR (MeOD): 8.74-8.17 (m, 4H), 8.13-7.96 (m, 2H), 7.59-7.46 (m, 1H), 4.90-4.18 (m, 3H), 3.99 (s, 1H), 2.98-2.39 (m, 1H), 2.10-1.19 (m, 6H).
Prepared analogous to example 105 substituting 5-methyl-2-(2H-1,2,3-triazol-2-yl)benzoic acid with sodium 5-methoxy-3-(2H-1,2,3-triazol-2-yl)picolinate. MS (ESI) mass calcd. for C21H21FN6O3, 424.2; m/z found 425.1 [M+H]+. 1H NMR (MeOD): 8.37-7.79 (m, 5H), 7.56-7.40 (m, 1H), 6.87-6.59 (m, 1H), 4.73 (s, 1H), 4.30-3.82 (m, 6H), 2.48-2.11 (m, 1H), 2.07-1.42 (m, 6H).
Prepared analogous to example 105 substituting 5-methyl-2-(2H-1,2,3-triazol-2-yl)benzoic acid with sodium 5-methoxy-2-(2H-1,2,3-triazol-2-yl)benzoate. MS (ESI) mass calcd. for C22H22FN5O3, 423.2; m/z found 424.2 [M+H]+. 1H NMR (MeOD): 8.18-7.68 (m, 4H), 7.58-7.38 (m, 1H), 7.24-6.85 (m, 2H), 6.85-6.57 (m, 1H), 4.78-4.55 (m, 1H), 4.23-3.40 (m, 6H), 2.77-2.18 (m, 1H), 2.13-1.11 (m, 6H).
Prepared analogous to example 105 substituting 5-methyl-2-(2H-1,2,3-triazol-2-yl)benzoic acid with 2-fluoro-6-(2H-1,2,3-triazol-2-yl)benzoic acid. MS (ESI) mass calcd. for C21H19F2N5O2, 411.2; m/z found 412.2 [M+H]+. 1H NMR (MeOD): 8.11-7.71 (m, 4H), 7.69-7.24 (m, 3H), 6.98-6.43 (m, 1H), 4.83-4.67 (m, 1H), 4.53-3.34 (m, 3H), 2.50-0.96 (m, 7H).
Prepared analogous to example 105 substituting 5-methyl-2-(2H-1,2,3-triazol-2-yl)benzoic acid with 4-fluoro-2-(2H-1,2,3-triazol-2-yl)benzoic acid. MS (ESI) mass calcd. for C21H19F2N5O2, 411.2; m/z found 412.2 [M+H]+. 1H NMR (MeOD): 8.11-7.71 (m, 4H), 7.69-7.24 (m, 3H), 6.98-6.43 (m, 1H), 4.83-4.67 (m, 1H), 4.53-3.34 (m, 3H), 2.50-0.96 (m, 7H).
Prepared analogous to example 105 substituting 5-methyl-2-(2H-1,2,3-triazol-2-yl)benzoic acid with 3-fluoro-2-(2H-1,2,3-triazol-2-yl)benzoic acid. MS (ESI) mass calcd. for C21H19F2N5O2, 411.2; m/z found 412.2 [M+H]+. 1H NMR (MeOD): 8.14-7.85 (m, 3H), 7.70-7.18 (m, 4H), 6.81-6.65 (m, 1H), 4.67-4.32 (m, 1H), 4.24-3.79 (m, 3H), 2.42-2.24 (m, 1H), 1.97-1.32 (m, 6H).
Prepared analogous to example 105 substituting 5-methyl-2-(2H-1,2,3-triazol-2-yl)benzoic acid with 3-ethoxy-6-methylpicolinic acid. MS (ESI) mass calcd. for C21H24FN3O3, 385.2; m/z found 385.9 [M+H]+. 1H NMR (MeOD): 8.23-7.90 (m, 1H), 7.57-7.11 (m, 3H), 6.87-6.53 (m, 1H), 4.85-4.69 (m, 1H), 4.51-3.56 (m, 5H), 2.84-2.09 (m, 4H), 2.06-1.49 (m, 5H), 1.47-1.05 (m, 4H).
Prepared analogous to example 105 substituting 5-methyl-2-(2H-1,2,3-triazol-2-yl)benzoic acid with 4-methoxy-2-(2H-1,2,3-triazol-2-yl)benzoic acid. MS (ESI) mass calcd. for C22H22FN5O3, 423.2; m/z found 424.2 [M+H]+. 1H NMR (MeOD): 8.12-7.81 (m, 3H), 7.58-7.22 (m, 3H), 7.15-6.57 (m, 2H), 4.75-4.58 (m, 1H), 4.48-3.74 (m, 6H), 2.83-2.08 (m, 1H), 2.02-0.98 (m, 6H).
Prepared analogous to example 105 substituting 5-methyl-2-(2H-1,2,3-triazol-2-yl)benzoic acid with 5-chloro-2-(2H-1,2,3-triazol-2-yl)benzoic acid. MS (ESI) mass calcd. for C21H19ClFN5O3, 427.2; m/z found 428.2 [M+H]+. 1H NMR (MeOD): 8.13-7.77 (m, 4H), 7.70-7.31 (m, 3H), 6.87-6.60 (m, 1H), 4.80-4.60 (m, 1H), 4.51-3.67 (m, 3H), 2.84-2.22 (m, 1H), 2.07-1.11 (m, 6H).
Prepared analogous to example 105 substituting 5-methyl-2-(2H-1,2,3-triazol-2-yl)benzoic acid with 4-methyl-2-(2H-1,2,3-triazol-2-yl)benzoic acid. MS (ESI) mass calcd. for C22H22FN5O2, 407.2; m/z found 408.2 [M+H]+. 1H NMR (MeOD): 8.10-7.84 (m, 3H), 7.76-7.69 (m, 1H), 7.56-6.87 (m, 3H), 6.87-6.53 (m, 1H), 4.75-4.59 (m, 1H), 4.49-3.65 (m, 3H), 2.80-2.09 (m, 4H), 2.01-1.00 (m, 6H).
Prepared analogous to example 105 substituting 5-methyl-2-(2H-1,2,3-triazol-2-yl)benzoic acid with 4-methyl-2-(pyrimidin-2-yl)benzoic acid. MS (ESI) mass calcd. for C24H23FN4O2, 418.2; m/z found 419.2 [M+H]+. 1H NMR (MeOD): 8.94-8.89 (m, 1H), 8.84-8.81 (m, 1H), 8.08-7.94 (m, 2H), 7.60-7.46 (m, 1H), 7.45-7.33 (m, 2H), 7.22-6.99 (m, 1H), 6.90-6.58 (m, 1H), 4.78-4.62 (m, 1H), 4.52-3.78 (m, 3H), 2.73-2.19 (m, 4H), 2.07-1.05 (m, 6H).
Prepared analogous to example 105 substituting 5-methyl-2-(2H-1,2,3-triazol-2-yl)benzoic acid with 2-methyl-6-(pyrimidin-2-yl)benzoic acid. MS (ESI) mass calcd. for C24H23FN4O2, 418.2; m/z found 419.2 [M+H]+. 1H NMR (MeOD): 8.99-8.63 (m, 2H), 8.14-7.70 (m, 2H), 7.61-7.27 (m, 4H), 7.15-6.45 (m, 1H), 4.86-4.65 (m, 1H), 4.55-3.44 (m, 3H), 2.53-2.35 (m, 3H), 2.34-0.78 (m, 7H).
Prepared analogous to example 105 substituting 5-methyl-2-(2H-1,2,3-triazol-2-yl)benzoic acid with 3-fluoro-2-(pyrimidin-2-yl)benzoic acid. MS (ESI) mass calcd. for C23H20F2N4O2, 422.2; m/z found 422.8 [M+H]+. 1H NMR (MeOD): 9.03-8.62 (m, 2H), 8.19-7.82 (m, 1H), 7.67-7.11 (m, 5H), 6.85-6.62 (m, 1H), 4.54 (s, 1H), 4.26-3.76 (m, 3H), 2.33 (s, 1H), 2.01-1.32 (m, 6H).
Prepared analogous to example 105 substituting 5-methyl-2-(2H-1,2,3-triazol-2-yl)benzoic acid with 3-methyl-2-(2H-1,2,3-triazol-2-yl)benzoic acid. MS (ESI) mass calcd. for C22H22FN5O2, 407.2; m/z found 408.2 [M+H]+. 1H NMR (MeOD): 8.05-7.95 (m, 1H), 7.93-7.84 (m, 2H), 7.57-7.05 (m, 4H), 6.81-6.65 (m, 1H), 4.61-3.98 (m, 2H), 3.97-3.75 (m, 2H), 2.38-2.23 (m, 1H), 2.19-2.14 (m, 3H), 1.97-1.32 (m, 6H).
Step A: (±)-(5-bromo-2-(2H-1,2,3-triazol-2-yl)phenyl)(-2-(((5-fluoropyridin-2-yl)oxy)methyl)-7-azabicyclo[2.2.1]heptan-7-yl)methanone. Prepared analogous to example 105 substituting 5-methyl-2-(2H-1,2,3-triazol-2-yl)benzoic acid with 5-bromo-2-(2H-1,2,3-triazol-2-yl)benzoic acid.
Step B: (±)-methyl 3-(-2-(((5-fluoropyridin-2-yl)oxy)methyl)-7-azabicyclo[2.2.1]heptane-7-carbonyl)-4-(2H-1,2,3-triazol-2-yl)benzoate. The title compound of step A (100 mg, 0.2 mmol) and Pd(dppf)Cl2 (35 mg) in MeOH (10 mL) was heated to 120° C. for 24 h in a sealed tube. The reaction was allowed to cool to rt and filtered. The filtrate was concentrated and purified via preparative TLC to give the title compound (20 mg, 21%).
Step C: (±)-(2-(((5-fluoropyridin-2-yl)oxy)methyl)-7-azabicyclo[2.2.1]heptan-7-yl)(5-(hydroxymethyl)-2-(2H-1,2,3-triazol-2-yl)phenyl)methanone. To the title compound of step B (40 mg, 0.1 mmol)) in MeOH (0.2 mL) and THF (6 mL) at 0° C. was added NaBH4 (4 mg, 0.1 mmol). After stirring overnight at rt, the reaction was concentrated and purified directly via silica gel chromatography (EtOAc in petroleum ethers) to give the title compound. MS (ESI) mass calcd. for C21H21FN6O2, 408.2; m/z found 409.2 [M+H]+. 1H NMR (MeOD): 8.07-7.82 (m, 4H), 7.66-7.29 (m, 3H), 6.85-6.60 (m, 1H), 4.70 (d, J=8.7 Hz, 2H), 4.50-3.73 (m, 4H), 2.43-2.20 (m, 1H), 2.04-1.28 (m, 6H).
Prepared analogous to Example 2 substituting intermediate A-9 with 2-(3-methyl-1,2,4-oxadiazol-5-yl)benzoic acid. MS (ESI) mass calcd. for C22H22N4O3, 390.2; m/z found 391.1 [M+H]+. 1H NMR (MeOD): 8.12-8.00 (m, 2H), 7.75-7.58 (m, 2H), 7.55-7.49 (m, 1H), 7.38-7.28 (m, 1H), 6.95-6.91 (m, 1H), 6.85-6.55 (m, 1H), 4.81-4.78 (m, 1H), 4.27-4.14 (m, 1H), 4.01-3.97 (m, 1H), 3.77-3.75 (m, 1H), 2.44-2.26 (m, 4H), 2.10-1.95 (m, 1H), 1.87-1.62 (m, 3H), 1.56-1.46 (m, 2H).
Prepared analogous to Example 127 substituting 2-(3-methyl-1,2,4-oxadiazol-5-yl)benzoic acid with 6-methyl-2-(2H-1,2,3-triazol-2-yl)nicotinic acid. MS (ESI) mass calcd. for C21H22N6O2, 390.2; m/z found 391.2 [M+H]+. 1H NMR (MeOD): 8.15-8.09 (m, 1H), 7.99 (s, 2H), 7.91-7.71 (m, 1H), 7.69-6.92 (m, 3H), 6.83-6.59 (m, 1H), 4.71-4.68 (m, 1H), 4.22-4.09 (m, 1H), 4.01-3.76 (m, 2H), 2.64-2.52 (m, 3H), 2.43-2.23 (m, 1H), 2.00-1.36 (m, 6H).
Prepared analogous to Example 127 substituting 2-(3-methyl-1,2,4-oxadiazol-5-yl)benzoic acid with 3-fluoro-2-(2H-1,2,3-triazol-2-yl)benzoic acid. MS (ESI) mass calcd. for C21H20FN5O2, 393.2; m/z found 394.0 [M+H]+. 1H NMR (MeOD): 8.14-8.12 (m, 1H), 7.95-7.93 (m, 2H), 7.69-7.46 (m, 2H), 7.40-7.31 (m, 1H), 7.22-7.12 (m, 1H), 6.99-6.91 (m, 1H), 6.80-6.66 (m, 1H), 4.57-4.56 (m, 1H), 4.04-3.88 (m, 3H), 2.38-2.27 (m, 1H), 1.85-1.43 (m, 6H).
Prepared analogous to Example 127 substituting 2-(3-methyl-1,2,4-oxadiazol-5-yl)benzoic acid with 6-methyl-2-(1H-1,2,3-triazol-1-yl)nicotinic acid. MS (ESI) mass calcd. for C21H22N6O2, 390.2; m/z found 391.2 [M+H]+. 1H NMR (MeOD): 8.62-8.61 (m, 1H), 8.12-8.09 (m, 1H), 7.99-7.73 (m, 2H), 7.71-7.62 (m, 1H), 7.50-6.91 (m, 2H), 6.87-6.61 (m, 1H), 4.74-4.71 (m, 1H), 4.17-3.79 (m, 3H), 2.64-2.53 (m, 3H), 2.46-2.26 (m, 1H), 2.06-1.90 (m, 1H), 1.83-1.38 (m, 5H).
Step A: (±)-tert-butyl 2-(((4-(trifluoromethyl)pyrimidin-2-yl)oxy)methyl)-7-azabicyclo[2.2.1]heptane-7-carboxylate. To intermediate B-10 (500 mg, 2.2 mmol) in THF (5 mL) at 0° C. was added NaH (6.6 mmol). After 30 min at rt, 2-chloro-4-(trifluoromethyl)pyrimidine (1.8 g, 9.9 mmol). The flask was then heated to 50° C. in an oil bath. After 3 h, H2O was added and the reaction extracted with EtOAc (2×). Purification via silica gel chromatography (20% EtOAc in petroleum ethers) gave the title compound (752 mg, 92%).
Step B: (±)-2-(((4-(trifluoromethyl)pyrimidin-2-yl)oxy)methyl)-7-azabicyclo[2.2.1]heptane hydrochloride. To the title compound of step A (752 mg, 2 mmol) in MeOH (6 mL) was added HCl.
Step C: (±)-tert-butyl 2-(((4-(trifluoromethyl)pyrimidin-2-yl)oxy)methyl)-7-azabicyclo[2.2.1]heptane-7-carboxylate. Prepared analogous to example 127 substituting 2-(3-methyl-1,2,4-oxadiazol-5-yl)benzoic acid with 6-methyl-2-(2H-1,2,3-triazol-2-yl)nicotinic acid with the title compound of step B. MS (ESI) mass calcd. for C21H20F3N7O2, 459.2; m/z found 460.2 [M+H]+. 1H NMR (MeOD): 8.89-8.82 (m, 1H), 8.02-7.82 (m, 3H), 7.48-7.14 (m, 2H), 4.75-4.71 (m, 1H), 4.44-4.07 (m, 2H), 3.91-3.84 (m, 1H), 2.64-2.56 (m, 3H), 2.48-2.30 (m, 1H), 2.02-1.43 (m, 6H).
Prepared analogous to Example 131 substituting 6-methyl-2-(2H-1,2,3-triazol-2-yl)nicotinic acid with 6-methyl-2-(1H-1,2,3-triazol-1-yl)nicotinic acid. MS (ESI) mass calcd. for C21H20F3N7O2, 459.2; m/z found 460.2 [M+H]+. 1H NMR (MeOD): 8.86-8.83 (m, 1H), 8.63-8.61 (m, 1H), 8.03-7.84 (m, 2H), 7.49-7.15 (m, 2H), 4.76-4.72 (m, 1H), 4.41-4.31 (m, 1H), 4.27-4.04 (m, 1H), 3.90-3.84 (m, 1H), 2.63-2.54 (m, 3H), 2.47-2.30 (m, 1H), 2.03-1.43 (m, 6H).
Prepared analogous to Example 131 substituting 6-methyl-2-(2H-1,2,3-triazol-2-yl)nicotinic acid with 2-(3-methyl-1,2,4-oxadiazol-5-yl)benzoic acid. MS (ESI) mass calcd. for C22H20F3N5O2, 459.2; m/z found 460.2 [M+H]+. 1H NMR (MeOD): 8.88-8.80 (m, 1H), 8.08-8.00 (m, 1H), 7.74-7.62 (m, 1H), 7.63-7.51 (m, 1H), 7.48-7.37 (m, 2H), 4.83-4.80 (m, 1H), 4.49-4.33 (m, 1H), 4.23-4.11 (m, 1H), 3.81-3.77 (m, 1H), 2.53-2.36 (m, 4H), 2.07-2.98 (m, 1H), 1.90-1.51 (m, 5H).
Prepared analogous to Example 131 substituting 6-methyl-2-(2H-1,2,3-triazol-2-yl)nicotinic acid with 3-fluoro-2-(2H-1,2,3-triazol-2-yl)benzoic acid. MS (ESI) mass calcd. for C21H18F4N6O2, 462.2; m/z found 463.2 [M+H]+. 1H NMR (MeOD): 8.89-8.84 (m, 1H), 7.96-7.94 (m, 2H), 7.69-7.28 (m, 4H), 4.61-4.58 (m, 1H), 4.29-4.06 (m, 2H), 3.97-3.93 (m, 1H), 2.46-2.37 (m, 1H), 1.88-1.40 (m, 6H).
Prepared analogous to Example 131 substituting 2-chloro-4-(trifluoromethyl)pyrimidine with 2-chloro-5-methylpyridine. MS (ESI) mass calcd. for C22H24N6O2, 404.2; m/z found 405.2 [M+H]+. 1H NMR (MeOD): 7.99-7.71 (m, 4H), 7.51-7.00 (m, 2H), 6.73-6.50 (m, 1H), 4.69 (d, J=3.6 Hz, 1H), 4.17-4.04 (m, 1H), 3.96-3.72 (m, 2H), 2.64-2.53 (m, 3H), 2.43-2.20 (m, 4H), 2.03-1.35 (m, 6H).
Prepared analogous to Example 135 substituting 6-methyl-2-(2H-1,2,3-triazol-2-yl)nicotinic acid with 6-methyl-2-(1H-1,2,3-triazol-1-yl)nicotinic acid. MS (ESI) mass calcd. for C22H24N6O2, 404.2; m/z found 405.2 [M+H]+. 1H NMR (MeOD): 8.62-8.55 (m, 1H), 8.19-7.88 (m, 3H), 7.75-7.47 (m, 2H), 7.05-6.52 (m, 1H), 4.72-4.71 (m, 1H), 4.08-4.02 (m, 1H), 3.98-3.74 (m, 2H), 2.64-2.53 (m, 3H), 2.37-2.24 (m, 4H), 1.96 (brs, 1H), 1.82-1.35 (m, 5H).
Prepared analogous to Example 135 substituting 6-methyl-2-(2H-1,2,3-triazol-2-yl)nicotinic acid with 2-(3-methyl-1,2,4-oxadiazol-5-yl)benzoic acid. MS (ESI) mass calcd. for C23H24N4O3, 404.2; m/z found 405.2 [M+H]+. 1H NMR (MeOD): 8.09-8.00 (m, 1H), 7.92-7.88 (m, 1H), 7.75-7.63 (m, 1H), 7.55-7.43 (m, 2H), 7.38-7.29 (m, 1H), 6.76-6.47 (m, 1H), 4.81-4.77 (m, 1H), 4.22-4.09 (m, 1H), 3.95 (d, J=8.1 Hz, 1H), 3.76-3.74 (m, 1H), 2.44-2.20 (m, 7H), 2.07-1.97 (m, 1H), 1.86-1.62 (m, 3H), 1.55-1.42 (m, 2H).
Prepared analogous to Example 135 substituting 6-methyl-2-(2H-1,2,3-triazol-2-yl)nicotinic acid with 3-fluoro-2-(2H-1,2,3-triazol-2-yl)benzoic acid. MS (ESI) mass calcd. for C22H22FN5O2, 407.2; m/z found 408.2 [M+H]+. 1H NMR (MeOD): 7.96-7.93 (m, 3H), 7.69-7.49 (m, 2H), 7.40-7.33 (m, 1H), 7.22-7.13 (m, 1H), 6.71-6.58 (m, 1H), 4.58-4.55 (m, 1H), 4.02-3.83 (m, 3H), 2.37-2.23 (m, 4H), 1.85-1.41 (m, 6H).
Prepared analogous to Example 135 substituting 2-chloro-4-(trifluoromethyl)pyrimidine with 2-chloro-6-methylpyridine. MS (ESI) mass calcd. for C22H24N6O2, 404.2; m/z found 405.2 [M+H]+. 1H NMR (MeOD): 7.99 (s, 2H), 7.91-7.69 (m, 1H), 7.56-6.77 (m, 3H), 6.60-6.38 (m, 1H), 4.70-4.69 (m, 1H), 4.21-4.05 (m, 1H), 3.98-3.77 (m, 2H), 2.64-2.51 (m, 3H), 2.43-2.20 (m, 4H), 2.03-1.37 (m, 6H).
Prepared analogous to Example 139 substituting 6-methyl-2-(2H-1,2,3-triazol-2-yl)nicotinic acid with 6-methyl-2-(1H-1,2,3-triazol-1-yl)nicotinic acid. MS (ESI) mass calcd. for C22H24N6O2, 404.2; m/z found 405.2 [M+H]+. 1H NMR (MeOD): 8.34 (d, J=7.1 Hz, 1H), 7.77-7.42 (m, 3H), 7.28-6.35 (m, 3H), 4.82-4.79 (m, 1H), 4.24-3.94 (m, 2H), 3.87-3.81 (m, 1H), 2.63-2.22 (m, 7H), 2.15-1.98 (m, 1H), 1.84-1.34 (m, 5H).
Prepared analogous to Example 139 substituting 6-methyl-2-(2H-1,2,3-triazol-2-yl)nicotinic acid with 2-(3-methyl-1,2,4-oxadiazol-5-yl)benzoic acid. MS (ESI) mass calcd. for C23H24N4O3, 404.2; m/z found 405.2 [M+H]+. 1H NMR (MeOD): 8.10-8.00 (m, 1H), 7.75-7.63 (m, 1H), 7.57-7.47 (m, 2H), 7.37-7.26 (m, 1H), 6.79 (dd, J=7.2, 2.8 Hz, 1H), 6.64-6.35 (m, 1H), 4.81-4.78 (m, 1H), 4.25-4.11 (m, 1H), 3.98-3.95 (m, 1H), 3.79-3.74 (m, 1H), 2.42-2.25 (m, 7H), 2.08-1.95 (m, 1H), 1.86-1.63 (m, 3H), 1.58-1.44 (m, 2H).
Prepared analogous to Example 139 substituting 6-methyl-2-(2H-1,2,3-triazol-2-yl)nicotinic acid with 3-fluoro-2-(2H-1,2,3-triazol-2-yl)benzoic acid. MS (ESI) mass calcd. for C22H22FN5O2, 407.2; m/z found 408.2 [M+H]+. 1H NMR (MeOD): 7.95-7.93 (m, 2H), 7.68-7.47 (m, 2H), 7.40-7.31 (m, 1H), 7.21-7.09 (m, 1H), 6.80 (t, J=8.3 Hz, 1H), 6.58-6.46 (m, 1H), 4.56 (s, 1H), 4.01 (d, J=7.3 Hz, 1H), 3.91 (d, J=7.4 Hz, 2H), 2.43 (d, J=2.5 Hz, 3H), 2.38-2.28 (m, 1H), 1.83-1.45 (m, 6H).
Prepared analogous to Example 131 substituting 2-chloro-4-(trifluoromethyl)pyrimidine with 2-chloro-6-(trifluoromethyl)pyridine. MS (ESI) mass calcd. for C22H21F3N6O2, 458.2; m/z found 459.2 [M+H]+. 1H NMR (MeOD): 7.91 (s, 1H), 7.84 (s, 1H), 7.73-7.65 (m, 2H), 7.29-7.25 (m, 2H), 6.93-6.69 (m, 1H), 4.85-4.82 (m, 1H), 4.25-4.16 (m, 1H), 3.98-3.96 (m, 1H), 3.79-3.69 (m, 1H), 2.69-2.56 (m, 3H), 2.38-2.16 (m, 1H), 2.05-1.24 (m, 6H).
Prepared analogous to Example 143 substituting 6-methyl-2-(2H-1,2,3-triazol-2-yl)nicotinic acid with 6-methyl-2-(1H-1,2,3-triazol-1-yl)nicotinic acid. MS (ESI) mass calcd. for C22H21F3N6O2, 458.2; m/z found 459.2 [M+H]+. 1H NMR (MeOD): 8.61 (t, J=1.1 Hz, 1H), 8.00-7.72 (m, 3H), 7.49-6.83 (m, 3H), 4.75-4.71 (m, 1H), 4.31-4.10 (m, 1H), 4.08-3.95 (m, 1H), 3.89-3.77 (m, 1H), 2.64-2.52 (m, 3H), 2.43-2.27 (m, 1H), 2.06-1.89 (m, 1H), 1.82-1.37 (m, 5H).
Prepared analogous to Example 143 substituting 6-methyl-2-(2H-1,2,3-triazol-2-yl)nicotinic acid with 2-(3-methyl-1,2,4-oxadiazol-5-yl)benzoic acid. MS (ESI) mass calcd. for C23H21FN4O3, 458.2; m/z found 459.2 [M+H]+. 1H NMR (MeOD): 8.10-8.01 (m, 1H), 7.88-7.77 (m, 1H), 7.75-7.63 (m, 1H), 7.54-7.49 (m, 1H), 7.39-7.25 (m, 2H), 7.07-6.78 (m, 1H), 4.82-4.79 (m, 1H), 4.35-4.24 (m, 1H), 4.10-4.07 (m, 1H), 3.78-3.74 (m, 1H), 2.48-2.29 (m, 4H), 2.09-1.96 (m, 1H), 1.88-1.63 (m, 3H), 1.58-1.47 (m, 2H).
Prepared analogous to Example 143 substituting 6-methyl-2-(2H-1,2,3-triazol-2-yl)nicotinic acid with 3-fluoro-2-(2H-1,2,3-triazol-2-yl)benzoic acid. MS (ESI) mass calcd. for C22H19F4N5O2, 461.2; m/z found 462.0 [M+H]+. 1H NMR (MeOD): 7.95-7.93 (m, 2H), 7.86-7.80 (m, 1H), 7.68-7.12 (m, 4H), 7.02-6.86 (m, 1H), 4.59-4.56 (m, 1H), 4.10-3.86 (m, 3H), 2.38-2.30 (m, 1H), 1.95-1.45 (m, 6H).
Prepared analogous to Example 131 substituting 2-chloro-4-(trifluoromethyl)pyrimidine with 2-chloroquinoxaline. MS (ESI) mass calcd. for C24H23N7O2, 441.2; m/z found 442.2 [M+H]+. 1H NMR (MeOD): 8.47-8.04 (m, 2H), 7.98-7.69 (m, 5H), 7.65-7.56 (m, 1H), 7.45-6.73 (m, 1H), 4.77-4.71 (m, 1H), 4.46-4.10 (m, 2H), 3.91-3.79 (m, 1H), 2.64-2.32 (m, 4H), 2.03-1.38 (m, 6H).
Prepared analogous to Example 147 substituting 6-methyl-2-(2H-1,2,3-triazol-2-yl)nicotinic acid with 6-methyl-2-(1H-1,2,3-triazol-1-yl)nicotinic acid. MS (ESI) mass calcd. for C24H23N7O2, 441.2; m/z found 441.2 [M+H]+. 1H NMR (MeOD): 8.61-8.59 (m, 1H), 8.46-8.25 (m, 1H), 8.04-7.55 (m, 6H), 7.48-6.74 (m, 1H), 4.78-4.74 (m, 1H), 4.43-4.30 (m, 1H), 4.21-4.18 (m, 1H), 3.92-3.82 (m, 1H), 2.63-2.34 (m, 4H), 2.08-1.89 (m, 1H), 1.88-1.39 (m, 5H).
Prepared analogous to Example 147 substituting 6-methyl-2-(2H-1,2,3-triazol-2-yl)nicotinic acid with 2-(3-methyl-1,2,4-oxadiazol-5-yl)benzoic acid. MS (ESI) mass calcd. for C25H23N5O3, 441.2; m/z found 442.2 [M+H]+. 1H NMR (MeOD): 8.48-8.20 (m, 1H), 8.08-7.91 (m, 2H), 7.83-7.12 (m, 6H), 4.86-4.81 (m, 1H), 4.50-4.36 (m, 1H), 4.26-4.18 (m, 1H), 3.80-3.77 (m, 1H), 2.55-2.34 (m, 4H), 2.09-1.97 (m, 1H), 1.91-1.64 (m, 3H), 1.61-1.50 (m, 2H).
Prepared analogous to Example 147 substituting 6-methyl-2-(2H-1,2,3-triazol-2-yl)nicotinic acid with 3-fluoro-2-(2H-1,2,3-triazol-2-yl)benzoic acid. MS (ESI) mass calcd. for C24H21FN6O2, 444.2; m/z found 445.1 [M+H]+. 1H NMR (MeOD): 8.47-8.33 (m, 1H), 8.01-7.60 (m, 6H), 7.54-6.92 (m, 3H), 4.65-4.60 (m, 1H), 4.31-4.13 (m, 2H), 3.96-3.95 (m, 1H), 2.52-2.40 (m, 1H), 1.96-1.44 (m, 6H).
Prepared analogous to Example 131 substituting 2-chloro-4-(trifluoromethyl)pyrimidine with 2-chloro-4,6-dimethylpyrimidine. MS (ESI) mass calcd. for C22H25N7O2, 419.2; m/z found 420.2 [M+H]+. 1H NMR (MeOD): 8.02-7.99 (m, 2H), 7.94-7.46 (m, 1H), 7.48-7.10 (m, 1H), 6.87 (s, 1H), 4.72-4.71 (m, 1H), 4.38-3.97 (m, 2H), 3.89-3.84 (m, 1H), 2.65-2.17 (m, 10H), 1.98-1.37 (m, 6H).
Prepared analogous to Example 151 substituting 6-methyl-2-(2H-1,2,3-triazol-2-yl)nicotinic acid with 6-methyl-2-(1H-1,2,3-triazol-1-yl)nicotinic acid. MS (ESI) mass calcd. for C22H25N7O2, 419.2; m/z found 420.2 [M+H]+. 1H NMR (MeOD): 8.62-8.61 (m, 1H), 7.98-7.78 (m, 2H), 7.50-7.11 (m, 1H), 6.86 (d, J=9.7 Hz, 1H), 4.75-4.71 (m, 1H), 4.25-4.23 (m, 1H), 4.16-3.84 (m, 2H), 2.64-2.55 (m, 3H), 2.46-2.25 (m, 7H), 2.06-1.88 (m, 1H), 1.85-1.39 (m, 5H).
Prepared analogous to Example 151 substituting 6-methyl-2-(2H-1,2,3-triazol-2-yl)nicotinic acid with 2-(3-methyl-1,2,4-oxadiazol-5-yl)benzoic acid. MS (ESI) mass calcd. for C23H25N5O3, 419.2; m/z found 420.2 [M+H]+. 1H NMR (MeOD): 8.10-8.01 (m, 1H), 7.76-7.64 (m, 1H), 7.58-7.51 (m, 1H), 7.42-7.36 (m, 1H), 6.86 (s, 1H), 4.83-4.80 (m, 1H), 4.42-4.22 (m, 1H), 4.13-4.00 (m, 1H), 3.83-3.76 (m, 1H), 2.49-2.28 (m, 10H), 2.08-1.98 (m, 1H), 1.89-1.65 (m, 3H), 1.58-1.48 (m, 2H).
Prepared analogous to Example 151 substituting 6-methyl-2-(2H-1,2,3-triazol-2-yl)nicotinic acid with 3-fluoro-2-(2H-1,2,3-triazol-2-yl)benzoic acid. MS (ESI) mass calcd. for C22H23FN6O2, 422.2; m/z found 423.1 [M+H]+. 1H NMR (MeOD): 7.96-7.95 (m, 2H), 7.69-7.22 (m, 3H), 6.87 (d, J=5.8 Hz, 1H), 4.58-4.56 (m, 1H), 4.19-3.89 (m, 3H), 2.42-2.34 (m, 7H), 1.90-1.37 (m, 6H).
Prepared analogous to Example 1 substituting intermediate B-9 with B-10 and 5-fluoro-2-(pyrimidin-2-yl)benzoic acid with 2-ethoxy-4-methylnicotinic acid. MS (ESI) mass calcd. for C21H25N3O3, 367.2; m/z found 368.3 [M+H]+. 1H NMR (CDCl3): 8.13-8.05 (m, 1H), 7.99-7.87 (m, 1H), 7.58-7.46 (m, 1H), 6.87-6.79 (m, 1H), 6.76-6.67 (m, 1H), 6.55-6.49 (m, 1H), 4.92-4.84 (m, 1H), 4.43-3.64 (m, 5H), 2.43-1.22 (m, 13H).
Prepared analogous to Example 1 substituting intermediate B-9 with B-10 and 5-fluoro-2-(pyrimidin-2-yl)benzoic acid with 6-methylimidazo[2,1-b]thiazole-5-carboxylic acid. 1H NMR (CDCl3): 8.05-7.98 (m, 1H), 7.79 (d, J=4.5 Hz, 1H), 7.54-7.47 (m, 1H), 6.84-6.78 (m, 1H), 6.76 (d, J=4.5 Hz, 1H), 6.62 (d, J=8.4 Hz, 1H), 4.54-4.35 (m, 2H), 4.11-4.03 (m, 1H), 4.02-3.88 (m, 1H), 2.46 (s, 3H), 2.39-2.28 (m, 1H), 2.07-1.97 (m, 1H), 1.80-1.70 (m, 2H), 1.65-1.52 (m, 3H).
Prepared analogous to Example 1 substituting intermediate B-9 with B-10 and 5-fluoro-2-(pyrimidin-2-yl)benzoic acid with 5-bromo-2-ethoxynicotinic acid. MS (ESI) mass calcd. for C20H22BrN3O3, 431.1; m/z found 432.2 [M+H]+. 1H NMR (CDCl3): 8.33-8.07 (m, 2H), 7.74 (d, J=2.5 Hz, 0.5H), 7.61 (d, J=2.5 Hz, 0.5H), 7.59-7.49 (m, 1H), 6.89-6.81 (m, 1H), 6.75 (d, J=8.3 Hz, 0.5H), 6.55 (d, J=8.4 Hz, 0.5H), 4.86-4.80 (m, 1H), 4.48-3.78 (m, 5H), 2.43-2.33 (m, 0.5H), 2.32-2.23 (m, 0.5H), 2.03-1.39 (m, 6H), 1.37-1.29 (m, 3H).
Prepared analogous to Example 1 substituting intermediate B-9 with intermediate B-10 and 5-fluoro-2-(pyrimidin-2-yl)benzoic acid with 2-ethoxy-6-methylnicotinic acid. MS (ESI) mass calcd. for C21H25N3O3, 367.2; m/z found 368.3 [M+H]+. 1H NMR (CDCl3): 8.14-8.08 (m, 1H), 7.57-7.47 (m, 1.5H), 7.38 (d, J=7.4 Hz, 0.5H), 6.86-6.82 (m, 1H), 6.74 (d, J=8.3 Hz, 0.5H), 6.72 (d, J=7.4 Hz, 0.5H), 6.51 (d, J=8.3 Hz, 0.5H), 6.46 (d, J=7.4 Hz, 0.5H), 4.84-4.79 (m, 1H), 4.44-4.34 (m, 1.5H), 4.27-4.09 (m, 1.5H), 4.06-4.01 (m, 0.5H), 3.92-3.80 (m, 1.5H), 2.43 (s, 1.5H), 2.38-2.32 (m, 2H), 2.26-2.20 (m, 0.5H), 2.01-1.40 (m, 6H), 1.36-1.28 (m, 3H).
Prepared analogous to Example 1 substituting intermediate B-9 with intermediate B-10 and 5-fluoro-2-(pyrimidin-2-yl)benzoic acid with 7-hydroxyquinoline-8-carboxylic acid (intermediate A-29 step B). MS (ESI) mass calcd. for C22H21N3O3, 375.2; m/z found 376.3 [M+H]+. 1H NMR (CDCl3): 8.88-8.66 (m, 1H), 8.19-7.93 (m, 2H), 7.80-7.41 (m, 2H), 7.26-6.25 (series of m, 4H), 5.10-4.87 (m, 1H), 4.34-3.60 (m, 3H), 2.51-1.00 (series of m, 7H).
Prepared analogous to Example 1 substituting intermediate B-9 with intermediate B-10 and 5-fluoro-2-(pyrimidin-2-yl)benzoic acid with 2-ethoxy-5-phenylnicotinic acid. MS (ESI) mass calcd. for C26H27N3O3, 429.2; m/z found 430.2 [M+H]+. 1H NMR (CDCl3): 8.40 and 8.30 (2d, J=2.5 Hz, 1H), 8.15-8.12 and 7.98-7.94 (2m, 1H), 7.87 and 7.74 (2d, J=2.5 Hz, 1H), 7.59-7.28 (m, 6H), 6.88-6.83 and 6.72-6.68 (2m, 1H), 6.76 and 6.47 (2d, J=8.3 Hz, 1H), 4.89-4.84 (m, 1H), 4.34-3.84 (series of m, 5H), 2.43-2.34 and 2.32-2.23 (m, 1H), 2.06-1.45 (series of m, 6H), 1.42-1.32 (m, 3H).
Prepared analogous to Example 1 substituting intermediate B-9 with intermediate B-10 and 5-fluoro-2-(pyrimidin-2-yl)benzoic acid with 4-bromo-2-ethoxynicotinic acid. MS (ESI) mass calcd. for C20H22BrN3O3, 431.1; m/z found 432.2 [M+H]+. 1H NMR (CDCl3): 8.15-8.08 (m, 1H), 7.96-7.87 (m, 1H), 7.60-7.49 (m, 1H), 7.11-6.92 (series of m, 1H), 6.88-6.82 (m, 1H), 6.78-6.52 (series of m, 1H), 4.94-4.87 (m, 1H), 4.47-3.67 (series of m, 5H), 2.45-1.41 (series of m, 7H), 1.38-1.27 (m, 3H).
Prepared analogous to Example 1 substituting intermediate B-9 with intermediate B-10 and 5-fluoro-2-(pyrimidin-2-yl)benzoic acid with 2-chloro-4-ethoxynicotinic acid. MS (ESI) mass calcd. for C20H22ClN3O3, 387.1; m/z found 388.3 [M+H]+. 1H NMR (CDCl3): 8.27-8.17 (m, 1H), 8.15-8.07 (m, 1H), 7.60-7.48 (m, 1H), 6.88-6.82 (m, 1H), 6.80-6.73 (m, 1H), 6.58-6.49 (m, 1H), 4.93-4.87 (m, 1H), 4.27-4.02 (m, 3H), 3.92-3.58 (series of m, 2H), 2.44-1.35 (series of m, 10OH).
Prepared analogous to Example 1 substituting intermediate B-9 with intermediate B-10 and 5-fluoro-2-(pyrimidin-2-yl)benzoic acid with 2,4-diethoxynicotinic acid. MS (ESI) mass calcd. for C22H27BrN3O4, 397.2; m/z found 398.2 [M+H]+. 1H NMR (CDCl3): 8.15-8.07 (m, 1H), 8.03-7.94 (m, 1H), 7.60-7.46 (m, 1H), 6.87-6.80 (m, 1H), 6.77-6.73 (m, 0.5H), 6.56-6.45 (m, 1H), 6.30-6.27 (m, 0.5 H) 4.88-4.83 (m, 1H), 4.50-3.51 (series of m, 7H), 2.40-1.15 (series of m, 13H).
Prepared analogous to Example 1 substituting 5-fluoro-2-(pyrimidin-2-yl)benzoic acid with intermediate A-22. MS (ESI) mass calcd. for C24H25N3O3, 403.2; m/z found 404.2 [M+H]+. 1H NMR (400 MHz, CDCl3) 8.97-8.89 (m, 0.7H), 8.87-8.81 (m, 0.3H), 8.22-8.07 (m, 0.7H), 7.95-7.85 (m, 1H), 7.82 (dq, J=8.6, 0.9 Hz, 0.2H), 7.78-7.69 (m, 0.6H), 7.69-7.47 (m, 2H), 7.43-7.28 (m, 1.2H), 7.10 (ddd, J=8.0, 6.8, 1.0 Hz, 0.3H), 6.93-6.68 (m, 1.5H), 6.52-6.46 (m, 0.2H), 6.16-6.09 (m, 0.3H), 5.02 (td, J=9.5, 4.6 Hz, 1H), 4.65-3.99 (m, 3.5H), 3.92 (dd, J=10.5, 5.6 Hz, 0.25H), 3.74-3.58 (m, 1.25H), 2.52-2.29 (m, 0.5H), 2.27-1.93 (m, 2H), 1.86-0.78 (m, 7.5H).
Prepared analogous to Example 7 substituting 6-methyl-3-(2H-1,2,3-triazol-2-yl)picolinic acid with 2-ethoxybenzoic acid. 1H NMR (400 MHz, CDCl3): 7.95 (dd, J=7.3, 3.1 Hz, 1H), 7.37-7.18 (m, 2.5H), 7.14 (dd, J=7.4, 1.7 Hz, 0.5H), 6.95 (td, J=7.5, 0.9 Hz, 0.5H), 6.90 (dd, J=8.4, 1.0 Hz, 0.5H), 6.83-6.68 (m, 1.5H), 6.47 (dd, J=9.0, 3.6 Hz, 0.5H), 4.88-4.80 (m, 1H), 4.17-3.72 (m, 5H), 2.40-2.28 (m, 0.5H), 2.26-2.14 (m, 0.5H), 2.07-1.85 (m, 2H), 1.83-1.17 (m, 7H).
Prepared analogous to Example 2 substituting 6-methyl-3-(2H-1,2,3-triazol-2-yl)picolinic acid with intermediate A-10 and 2-fluoropyridine with 2-chloroquinoxaline. MS (ESI) mass calcd. for C24H21FN6O2, 444.2; m/z found 445.2 [M+H]+. 1H NMR (400 MHz, CDCl3): 8.49 (s, 0.4H), 8.30 (s, 0.4H), 8.04 (ddd, J=8.2, 6.9, 1.5 Hz, 1H), 7.90-7.76 (m, 2.5H), 7.75-7.66 (m, 1.5H), 7.65-7.55 (m, 1.5H), 7.44 (dd, J=8.5, 5.8 Hz, 0.5H), 7.32 (dd, J=8.5, 5.8 Hz, 0.5H), 7.29-7.22 (m, 0.2H), 7.21-7.10 (m, 1H), 6.49 (s, 0.5H), 4.93-4.84 (m, 1H), 4.52-4.30 (m, 1H), 4.23-4.07 (m, 1H), 3.87-3.78 (m, 1H), 2.48-2.25 (m, 1.8H), 2.10-1.88 (m, 1.2H), 1.83-1.31 (m, 4H).
Prepared analogous to Example 13 substituting 2-chloro-4-trfluoromethylpyrimidine with 2-fluoro-5-methylpyridine. MS (ESI) mass calcd. for C23H25N5O2, 403.2; m/z found 404.2 [M+H]+. 1H NMR (400 MHz, CDCl3): 7.99-7.92 (m, 1H), 7.81-7.68 (m, 2.5H), 7.42-7.29 (m, 1.5H), 7.26-7.21 (m, 0.5H), 7.21-7.10 (m, 1H), 6.66 (d, J=8.4 Hz, 0.5H), 6.45 (d, J=8.4 Hz, 0.5H), 4.85-4.73 (m, 1H), 4.16-3.68 (m, 3H), 2.42 (s, 1.3H), 2.34-2.14 (m, 3.7H), 2.02-1.79 (m, 2.5H), 1.72-1.21 (m, 5.5H).
Prepared analogous to Example 1 substituting intermediate B-9 with intermediate B-10, 2-fluoropyridine with 2-chloroquinoxaline and 5-fluoro-2-(pyrimidin-2-yl)benzoic acid with intermediate A-3 to give the title compound. MS (ESI) mass calcd. for C24H23N7O2, 441.2; m/z found 442.2 [M+H]+. 1H NMR CD3OD: 8.47-8.04 (m, 2H), 7.98-7.69 (m, 5H), 7.65-7.56 (m, 1H), 7.45-6.73 (m, 1H), 4.77-4.71 (m, 1H), 4.46-4.10 (m, 2H), 3.91-3.79 (m, 1H), 2.64-2.32 (m, 4H), 2.03-1.38 (m, 6H).
Prepared analogous to example 170 substituting 2-chloro-4,6-dimethylpyrimidine with 2-fluoropyridine. MS (ESI) mass calcd. for C21H21FN6O, 392.2; m/z found 393.1 [M+H]+. 1H NMR (CD3OD): 8.02-7.83 (m, 4H), 7.47-7.23 (m, 3H), 6.59-6.38 (m, 2H), 4.73-4.55 (m, 1H), 3.87-3.70 (m, 1H), 3.24-2.80 (m, 2H), 2.27-2.03 (m, 1H), 1.97-1.34 (m, 6H).
Step A: (±)-tert-butyl 2-(((methylsulfonyl)oxy)methyl)-7-azabicyclo[2.2.1]heptane-7-carboxylate. To intermediate B-10 (2.6 g, 11.5 mmol) and TEA (1.7 g, 17.2 mmol) in DCM (15 mL) at 0° C. was added MsCl (1.6 g, 13.7 mmol) dropwise over 10m. This ice bath was removed and the reaction was allowed to proceed at rt for 12 h and H2O was added. The layers were separated and the organic layer was washed with brine and dried (Na2SO4). Purification via silica gel chromatography (15% EtOAc in petroleum ethers) gave the title compound (3.5 g).
Step B: (±)-tert-butyl 2-(azidomethyl)-7-azabicyclo[2.2.1]heptane-7-carboxylate. To the title compound of step A (3.4 g, 11.1 mmol) in DMF (15 mL) was added sodium azide (2.1 g, 33.4 mmol). The mixture was heated at 100° C. overnight, cooled to rt, poured into H2O and extracted with DCM. The combined organics were washed with brine and dried (Na2SO4). Purification via silica gel chromatography (10% EtOAc in petroleum ethers) gave the title compound (2.6 g).
Step C: (±)-2-(azidomethyl)-7-azabicyclo[2.2.1]heptane. To the title compound of step B in DCM was added TFA. After 3 h at rt, the reaction mixture was concentrated to give the title compound (1.7 g) as the TFA salt.
Step D: (±)-2-(azidomethyl)-7-azabicyclo[2.2.1]heptan-7-yl)(5-fluoro-2-(2H-1,2,3-triazol-2-yl)phenyl)methanone. Prepared analogous to example 22 substituting 2-(2H-1,2,3-triazol-2-yl)benzoic acid with 5-fluoro-2-(2H-1,2,3-triazol-2-yl)benzoic acid and using the title compound of step C.
Step E: 2-(aminomethyl)-7-azabicyclo[2.2.1]heptan-7-yl)(5-fluoro-2-(2H-1,2,3-triazol-2-yl)phenyl)methanone. The title compound of step D in MeOH was hydrogenated under an atmosphere of hydrogen in the presence of 10 wt % Pd/C for 4 h. The catalyst was removed by filtration. Purification via silica gel chromatography (7% MeOH in DCM) gave the title compound.
Step F: (±)-(2-(((4,6-dimethylpyrimidin-2-yl)amino)methyl)-7-azabicyclo[2.2.1]heptan-7-yl)(5-fluoro-2-(2H-1,2,3-triazol-2-yl)phenyl)methanone. To the title compound of step E (30 mg) in NMP (3 mL) was added 2-chloro-4,6-dimethylpyrimidine (16 mg) and Cs2CO3 (43 mg). The reaction was heated to 180° C. for 2 h. After cooling to rt, H2O was added and the mixture extracted with EtOAc. Purification via prep-HPLC gave the title compound. MS (ESI) mass calcd. for C22H24FN7O, 421.2; m/z found 422.2 [M+H]+. 1H NMR (CD3OD) 7.90-7.73 (m, 3H), 7.34-7.14 (m, 2H), 6.31-6.26 (m, 1H), 4.62-4.41 (m, 1H), 3.74-3.57 (m, 1H), 3.46-3.22 (m, 1H), 3.18-2.93 (m, 1H), 2.40-1.91 (m, 7H), 1.85-1.20 (m, 6H).
Prepared analogous to example 170 substituting 2-chloro-4,6-dimethylpyrimidine with 2-chloro-4-(trifluoromethyl)pyrimidine. MS (ESI) mass calcd. for C21H19F4N7O, 461.2; m/z found 462.1 [M+H]+. 1H NMR (CD3OD): 8.51 (s, 1H), 7.99-7.83 (m, 3H), 7.46-7.16 (m, 2H), 6.88 (d, J=4.9 Hz, 1H), 4.74-4.53 (m, 1H), 3.87-3.66 (m, 1H), 3.34 (s, 1H), 3.30-3.02 (m, 1H), 2.33-2.08 (m, 1H), 1.97-1.32 (m, 6H).
Prepared analogous to example 170 substituting 2-chloro-4,6-dimethylpyrimidine with 2-chloro-6-(trifluoromethyl)pyridine. MS (ESI) mass calcd. for C22H20F4N6O, 460.2; m/z found 461.2 [M+H]+. 1H NMR (CD3OD): 8.07-7.84 (m, 3H), 7.60-7.22 (m, 3H), 6.90 (d, J=7.2 Hz, 1H), 6.74-6.58 (m, 1H), 4.77-4.58 (m, 1H), 3.90-3.72 (m, 1H), 3.30-3.05 (m, 2H), 2.37-2.12 (m, 1H), 1.99-1.37 (m, 6H).
Prepared analogous to Example 7 substituting 6-methyl-3-(2H-1,2,3-triazol-2-yl)picolinic acid with 3-fluoro-2-methoxybenzoic acid. MS (ESI) mass calcd. for C20H20F2N2O3, 374.1; m/z found 375.1 [M+H]+. 1H NMR (CD3OD): 8.01-7.90 (m, 1H), 7.56-7.38 (m, 1H), 7.28-7.06 (m, 2H), 7.02-6.53 (m, 2H), 4.82-4.66 (m, 1H), 4.50-3.73 (m, 6H), 2.85-2.22 (m, 1H), 2.21-1.10 (m, 6H).
Prepared analogous to example 170 substituting 2-chloro-4,6-dimethylpyrimidine with 2-chloroquinoxaline. MS (ESI) mass calcd. for C24H22FN7O, 443.2; m/z found 444.2 [M+H]+.
Prepared analogous to example 98 substituting 3,6′-dimethyl-[2,3′-bipyridine]-2′-carboxylic acid with intermediate A-9. MS (ESI) mass calcd. for C22H21FN6O2, 420.2; m/z found 421 [M+H]+.
Prepared analogous to example 7 substituting 5-fluoropyridin-2(1H)-one with 3-methylpyridin-2-ol. MS (ESI) mass calcd. for C22H24N6O2, 404.2; m/z found 405 [M+H.
Prepared analogous to Example 7 substituting 6-methyl-3-(2H-1,2,3-triazol-2-yl)picolinic acid with intermediate A-54. MS (ESI) mass calcd. for C23H23FN4O3, 422.2; m/z found 423 [M+H]+.
Prepared analogous to Example 1 substituting intermediate A-7 with intermediate A-54. MS (ESI) mass calcd. for C23H24N4O3, 404.2; m/z found 405 [M+H]+.
Prepared analogous to Example 98 substituting intermediate 3,6′-dimethyl-[2,3′-bipyridine]-2′-carboxylic acid with intermediate A-54. MS (ESI) mass calcd. for C22H22FN5O3, 423.2; m/z found 424 [M+H]+.
Prepared analogous to Example 13 substituting 2-chloro-4-(trifluoromethyl)pyrimidine with 4-chloro-6-methyl-2-(trifluoromethyl)pyrimidine. MS (ESI) mass calcd. for C23H23F3N6O2, 472.2; m/z found 473.2 [M+H]+. 1H NMR (CDCl3): 7.88-7.72 (m, 3H), 7.38-7.12 (m, 2H), 6.74-6.70 (s, 0.6H), 6.55-6.50 (s, 0.4H), 4.89-4.75 (m, 1H), 4.30-3.87 (m, 2H), 3.85-3.46 (m, 1H), 2.56-2.49 (m, 3H), 2.46-2.39 (s, 2H), 2.32-1.80 (m, 3H), 1.74-1.11 (m, 5H).
Step A: (1S,2R,4R)-tert-butyl 2-((5-(trifluoromethyl)pyrazin-2-yl)amino)-7-azabicyclo[2.2.1]heptane-7-carboxylate. To intermediate B-5 (1.6 g, 7.3 mmol) and K2CO3 (1.5 g, 10 mmol) in DMF (11 mL) was added 2-chloro-5-(trifluoromethyl)pyrazine (1.1 mL, 8.8 mmol). After heating at 70° C. for 2 h, the mixture was cooled to rt, diluted with EtOAc and H2O. The aqueous layer was extracted with EtOAc (3×). The combined organics were washed with 4% (aq) and dried (MgSO4). Purification via silica gel chromatography (0-40% EtOAc in hexanes) gave the title compound (1.8 g, 67%). MS (ESI) mass calcd. for C16H21F3N4O2, 358.2; m/z found 359.2 [M+H]+. 1H NMR (CDCl3): 8.32 (s, 1H), 7.86-7.82 (m, 1H), 5.33 (s, 1H), 4.38-4.15 (m, 2H), 4.10-3.96 (m, 1H), 2.14-1.98 (m, 1H), 1.93-1.67 (m, 2H), 1.61-1.36 (m, 12H).
Step B: (1S,2R,4R)—N-(5-(trifluoromethyl)pyrazin-2-yl)-7-azabicyclo[2.2.1]heptan-2-amine. To the title compound of step A (200 mg, 0.6 mmol) in EtOAc (1 mL) was added 4M HCl in dioxane (3 mL). After 2 h, the reaction was concentrated, neutralized with 5% Na2CO3 (aq) and extracted with DCM (2×). The combined organics were dried (Na2SO4) to give the title compound of step B that was used without further purification. MS (ESI) mass calcd. for C11H13F3N4, 258.1; m/z found 259.1 [M+H]+.
Step C: (2-(2H-1,2,3-triazol-2-yl)phenyl)((1S,2R,4R)-2-((5-(trifluoromethyl)pyrazin-2-yl)amino)-7-azabicyclo[2.2.1]heptan-7-yl)methanone. To the title compound of step B (140 mg, 0.5 mmol) and intermediate A-1 (113 mg, 0.6 mmol) in DMF (4 mL) was added DIPEA (230 μL, 1.4 mmol) and HATU (155 mg, 0.6 mmol). Upon completion of the reaction, purification was performed using Agilent prep method X to give the title compound (172 mg, 74%). MS (ESI) mass calcd. for C20H18F3N7O, 429.2; m/z found 430 [M+H]+. 1H NMR (CDCl3): 8.32 (s, 0.3H), 8.17 (s, 0.7H), 7.99-7.89 (m, 1.5H), 7.88-7.77 (m, 1.5H), 7.62-7.30 (m, 4H), 6.24-6.15 (m, 0.3H), 4.86 (s, 0.7H), 4.76 (d, J=5.4 Hz, 0.3H), 4.45-4.23 (m, 1H), 4.08-3.90 (m, 1H), 2.23-1.34 (m, 6H).
Step A: (±)-tert-butyl 2-((5-(trifluoromethyl)pyrazin-2-yl)amino)-7-azabicyclo[2.2.1]heptane-7-carboxylate. Prepared analogous to Example 181 step A substituting intermediate B-5 with intermediate B-6.
Step B: (±)-N-(5-(trifluoromethyl)pyrazin-2-yl)-7-azabicyclo[2.2.1]heptan-2-amine. Prepared analogous to Example 181 step B substituting (1S,2R,4R)-tert-butyl 2-((5-(trifluoromethyl)pyrazin-2-yl)amino)-7-azabicyclo[2.2.1]heptane-7-carboxylate with (±)-tert-butyl 2-((5-(trifluoromethyl)pyrazin-2-yl)amino)-7-azabicyclo[2.2.1]heptane-7-carboxylate.
Step C: (±)-((2-(2H-1,2,3-triazol-2-yl)phenyl)(2-((5-(trifluoromethyl)pyrazin-2-yl)amino)-7-azabicyclo[2.2.1]heptan-7-yl)methanone.
To 2-(2H-1,2,3-triazol-2-yl)benzoic acid (125 mg, 0.6 mmol) and DMF (4 mL) was added (i-Pr)2NEt (0.23 mL, 1.3 mmol) and HBTU (155 mg, 0.6 mmol). After 10 min, the title compound from step B (146 mg. 0.4 mmol) was added. After stirring overnight at rt, saturated NaHCO3 (aq.) was added and the mixture extracted with EtOAc (3×). The combined organics were dried (MgSO4) and concentrated. Purification via preparative HPLC gave the title compound (89 mg, 47%) as a beige solid. MS (ESI) mass calcd. for C20H18F3N7O, 429.2; m/z found 430 [M+H]+. 1H NMR (DMSO-D6): 8.47 (s, 0.3H), 8.24 (s, 0.7H), 8.14-8.05 (m, 2.2H), 8.02 (s, 0.7H), 7.85 (d, J=7.2 Hz, 1.3H), 7.72-7.55 (m, 1.7H), 7.49-7.34 (m, 1.4H), 7.13 (t, J=7.4 Hz, 0.7H), 4.58 (t, J=4.3 Hz, 0.7H), 4.44 (d, J=4.7 Hz, 0.3H), 4.04-3.93 (m, 0.3H), 3.82 (t, J=4.1 Hz, 0.3H), 3.79-3.70 (m, 0.7H), 3.54 (d, J=4.8 Hz, 0.7H), 2.07-1.90 (m, 1H), 1.85-1.07 (m, 5H).
The title compounds were obtained by chiral SFC (CHIRALPAK OD-H 5 μM 250×20 mm) resolution of Example 182 (81 mg) using 70% CO2/30% EtOH as the mobile phase to give enantiomer A (37 mg, 1st eluting enantiomer, example 183a) and enantiomer B (38 mg, 2nd eluting enantiomer, example 183b). Example 183a: >98% single enantiomer, 2.45 min retention time; Example 183b>98% single enantiomer, 3.33 min retention time.
Example 183a: Enantiomer A: MS (ESI) mass calcd. for C20H18F3N7O, 429.2; m/z found 430 [M+H]+.
Example 183b: Enantiomer B: MS (ESI) mass calcd. for C20H18F3N7O, 429.2; m/z found 430 [M+H]+.
Prepared analogous to Example 182 substituting intermediate A-1 with intermediate A-19 and HBTU with HATU. MS (ESI) mass calcd. for C20H19F3N8O, 444.2; m/z found 445.1 [M+H]+.
Prepared analogous to Example 184 substituting intermediate A-19 with intermediate A-20. MS (ESI) mass calcd. for C20H19F3N8O, 444.2; m/z found 445.1 [M+H]+. HPLC Rt=1.13.
Prepared analogous to Example 184 substituting intermediate A-19 with intermediate A-21. MS (ESI) mass calcd. for C20H19F3N8O, 444.2; m/z found 445.1 [M+H]+. 1H NMR (CDCl3): 8.36-8.32 (s, 0.2H), 8.27-8.23 (s, 0.8H), 8.22-8.18 (d, J=8.4 Hz, 0.2H), 8.13-8.08 (d, J=8.3 Hz, 0.8H), 7.93-7.84 (m, 2H), 7.79-7.75 (m, 0.8H), 7.40-7.36 (d, J=8.4 Hz, 0.2H), 7.36-7.31 (d, J=8.4 Hz, 0.8H), 7.26-7.22 (m, 0.2H), 6.26-6.19 (d, J=8.5 Hz, 0.2H), 4.96-4.86 (t, J=4.8 Hz, 0.8H), 4.83-4.75 (d, J=5.4 Hz, 0.2H), 4.36-4.19 (m, 1H), 4.13-3.92 (d, J=5.0 Hz, 1H), 2.69-2.56 (m, 3H), 2.29-2.14 (dd, J=13.1, 7.5 Hz, 1H), 2.14-1.87 (m, 2H), 1.81-1.78 (m, 1H), 1.63-1.56 (m, 2H).
Step A: (±)-tert-butyl 2-((5-(trifluoromethyl)pyridin-2-yl)amino)-7-azabicyclo[2.2.1]heptane-7-carboxylate. To intermediate B-6 (150 mg, 0.7 mmol) in DMSO (10 mL) was added DIPEA (244 μL, 1.4 mmol) and 2-chloro-5-(trifluoromethyl)pyridine (170 μL, 1.4 mmol). After heating at 100° C. for 4 h, the mixture was cooled to rt and saturated NaHCO3 (aq) was added. The mixture was extracted with DCM (3×). The combined organics were washed with brine and dried (MgSO4). Purification via silica gel chromatography (0-13% EtOAc in heptanes) gave the title compound. MS (ESI) mass calcd. for C17H22F3N7O2, 357.2; m/z found 358.0 [M+H]+.
Step B: (±)-N-(5-(trifluoromethyl)pyridin-2-yl)-7-azabicyclo[2.2.1]heptan-2-amine hydrochloride. To the title compound from step A (262 mg, 0.7 mmol) in 1,4-dioxane (10 mL) was added 6N HCl in iPrOH (700 μL). The reaction was heated to 70° C. for 2 h, cooled to rt, concentrated and used without further purification in subsequent steps.
Step C: (±)-(6-methyl-3-(2H-1,2,3-triazol-2-yl)pyridin-2-yl)(2-((5-(trifluoromethyl)pyridin-2-yl)amino)-7-azabicyclo[2.2.1]heptan-7-yl)methanone.
Prepared analogous to Example 182 substituting intermediate A-1 with intermediate A-21 and (±)-N-(5-(trifluoromethyl)pyrazin-2-yl)-7-azabicyclo[2.2.1]heptan-2-amine with the title compound of step B. MP=193.9° C. 1H NMR (DMSO-D6): 8.38 (s, 0.3H), 8.24-8.16 (m, 1H), 8.15-8.11 (m, 2H), 8.05 (d, J=8.3 Hz, 0.7H), 7.69 (dd, J=8.9, 2.3 Hz, 0.3H), 7.63 (dd, J=8.9, 2.4 Hz, 0.7H), 7.57 (d, J=8.4 Hz, 0.3H), 7.37 (d, J=8.4 Hz, 0.7H), 7.33 (d, J=5.8 Hz, 0.7H), 7.14 (d, J=4.5 Hz, 0.3H), 6.75 (d, J=8.9 Hz, 0.3H), 6.61 (d, J=8.9 Hz, 0.7H), 4.60 (t, J=4.5 Hz, 0.7H), 4.51 (d, J=4.8 Hz, 0.3H), 3.99-3.90 (m, 0.6H), 3.89-3.77 (m, 1.4H), 2.60 (s, 0.9H), 2.23 (s, 2.1H), 1.99 (dd, J=12.6, 7.6 Hz, 1H), 1.83-1.21 (m, 5H).
Prepared analogous to Example 187 substituting intermediate A-21 with intermediate A-19. MS (ESI) mass calcd. for C21H20F3N7O, 443.2; m/z found 444.1 [M+H]+. 1H NMR (CDCl3): 8.49-8.44 (dd, J=1.9, 0.9 Hz, 0.2H), 8.41-8.32 (m, 1H), 8.28-8.21 (m, 0.8H), 8.18-8.11 (m, 0.2H), 8.06-7.98 (m, 0.8H), 7.94-7.86 (m, 2H), 7.60-7.53 (dd, J=8.8, 2.4 Hz, 0.2H), 7.45-7.35 (dd, J=8.9, 2.4 Hz, 0.8H), 6.71-6.59 (d, J=8.7 Hz, 0.8H), 6.45-6.37 (d, J=8.8 Hz, 0.2H), 6.27-6.17 (d, J=8.8 Hz, 0.8H), 5.82-5.72 (m, 0.2H), 4.95-4.84 (t, J=4.6 Hz, 0.8H), 4.82-4.74 (d, J=5.2 Hz, 0.2H), 4.36-4.18 (m, 1H), 4.08-3.97 (m, 1H), 2.51-2.47 (s, 0.7H), 2.45-2.41 (m, 2.3H), 2.22-2.14 (dd, J=13.0, 7.7 Hz, 0.8H), 2.11-1.90 (m, 2.2H), 1.82-1.40 (m, 3H).
Prepared analogous to Example 187 substituting intermediate A-21 with intermediate A-3. MS (ESI) mass calcd. for C21H20F3N7O, 443.2; m/z found 444.1 [M+H]+. 1H NMR (CDCl3): 8.40-8.33 (s, 0.4H), 8.26-8.19 (d, J=2.0 Hz, 0.6H), 7.98-7.88 (m, 2H), 7.78-7.71 (d, J=7.7 Hz, 0.4H), 7.64-7.55 (m, 1H), 7.41-7.27 (m, 1.6H), 7.20-7.08 (m, 0.7H), 6.43-6.35 (d, J=8.8 Hz, 0.3H), 6.13-6.01 (d, J=8.7 Hz, 0.7H), 5.74-5.56 (m, 0.3H), 4.90-4.81 (m, 0.7H), 4.78-4.71 (d, J=5.3 Hz, 0.3H), 4.38-4.14 (m, 1H), 3.99-3.85 (m, 1H), 2.78-2.55 (m, 3H), 2.24-2.10 (dd, J=13.2, 7.9 Hz, 1H), 2.08-1.39 (m, 5H).
Prepared analogous to Example 187 substituting intermediate A-21 with intermediate A-4. MS (ESI) mass calcd. for C21H20F3N7O, 443.2; m/z found 444.1 [M+H]+. 1H NMR (CDCl3): 8.50-8.46 (m, 0.6H), 8.37-8.34 (d, J=1.2 Hz, 0.4H), 8.34-8.31 (s, 0.6H), 8.24-8.17 (s, 0.4H), 7.90-7.84 (m, 1H), 7.75-7.69 (d, J=7.7 Hz, 0.6H), 7.65-7.60 (d, J=7.8 Hz, 0.4H), 7.55-7.47 (dd, J=8.7, 2.4 Hz, 0.7H), 7.36-7.27 (m, 1.3H), 7.22-7.14 (m, 0.4H), 6.94-6.83 (d, J=8.7 Hz, 0.6H), 6.29-6.11 (d, J=8.9 Hz, 1H), 4.91-4.74 (d, J=5.3 Hz, 1H), 4.55-4.28 (m, 1H), 4.04-3.90 (m, 1H), 2.66-2.62 (s, 1.9H), 2.59-2.55 (s, 1.1H), 2.23-2.15 (dd, J=13.1, 8.1 Hz, 0.5H), 2.06-1.79 (m, 2.5H), 1.77-1.68 (m, 1H), 1.55-1.47 (m, 2H).
Prepared analogous to Example 187 substituting intermediate A-21 with intermediate A-5. MS (ESI) mass calcd. for C22H21F3N6O2, 458.2; m/z found 459.1 [M+H]+. 1H NMR (CDCl3): 8.38-8.32 (s, 0.3H), 8.26-8.19 (s, 0.7H), 7.93-7.87 (s, 1.3H), 7.87-7.80 (s, 0.7H), 7.60-7.53 (m, 0.4H), 7.49-7.43 (d, J=2.5 Hz, 0.4H), 7.40-7.26 (m, 2.7H), 7.00-6.93 (dd, J=8.5, 2.5 Hz, 0.4H), 6.90-6.80 (d, J=8.4 Hz, 0.7H), 6.43-6.35 (d, J=8.7 Hz, 0.4H), 6.12-6.04 (d, J=8.8 Hz, 0.7H), 5.77-5.67 (m, 0.3H), 4.84-4.79 (m, 0.7H), 4.74-4.68 (m, 0.3H), 4.36-4.15 (m, 1H), 4.02-3.95 (m, 1H), 3.94-3.87 (s, 1H), 3.87-3.81 (s, 2H), 2.20-2.11 (dd, J=13.0, 8.0 Hz, 0.7H), 2.07-1.99 (dd, J=12.9, 7.6 Hz, 0.3H), 1.99-1.83 (s, 2H), 1.79-1.34 (m, 3H).
Prepared analogous to Example 187 substituting intermediate A-21 with intermediate A-6. MS (ESI) mass calcd. for C23H19F4N5O, 457.2; m/z found 458.1 [M+H]+. 1H NMR (CDCl3): 8.91-8.76 (m, 2H), 8.36-8.18 (m, 1H), 7.68-7.52 (m, 1H), 7.40-7.27 (m, 3H), 7.24-7.14 (m, 2H), 6.29-6.15 (m, 1H), 4.78-4.66 (t, J=4.9 Hz, 1H), 4.44-4.30 (m, 1H), 4.16-4.02 (d, J=5.0 Hz, 1H), 2.19-2.11 (dd, J=12.9, 8.2 Hz, 1H), 2.08-1.97 (m, 1H), 1.97-1.85 (m, 1H), 1.77-1.60 (m, 2H), 1.54-1.49 (m, 1H).
Prepared analogous to Example 187 substituting intermediate A-21 with 3-fluoro-2-methoxybenzoic acid. MS (ESI) mass calcd. for C20H19F4N3O2, 409.1; m/z found 410.4 [M+H]+. 1H NMR (MeOD): 8.39 (s, 0.3H), 8.18 (s, 0.7H), 7.69 (dd, J=8.9, 2.3 Hz, 0.3H), 7.60 (dd, J=8.9, 2.4 Hz, 0.7H), 7.36 (ddd, J=11.7, 7.6, 2.1 Hz, 0.3H), 7.30-7.05 (m, 2.3H), 7.01 (d, J=7.6 Hz, 0.7H), 6.85-6.73 (m, 0.7H), 6.68 (d, J=8.8 Hz, 0.3H), 6.59 (d, J=8.9 Hz, 0.7H), 4.66 (br s, 0.7H), 4.54 (d, J=4.8 Hz, 0.3H), 4.00-3.90 (m, 0.3H), 3.89-3.77 (m, 3.7H), 3.75 (t, J=4.3 Hz, 0.3H), 3.64 (br s, 0.7H), 2.08-1.91 (m, 1H), 1.80-1.37 (m, 5H).
Prepared analogous to Example 187 substituting intermediate A-21 with intermediate A-8. MP=147° C. 1H NMR (DMSO-D6): 8.38 (s, 0.3H), 8.16 (s, 0.7H), 7.68 (dd, J=8.9, 2.3 Hz, 0.3H), 7.59 (dd, J=8.9, 2.4 Hz, 0.7H), 7.46 (d, J=8.6 Hz, 0.3H), 7.36-7.18 (m, 2H), 7.05 (d, J=8.6 Hz, 0.7H), 6.71 (d, J=8.9 Hz, 0.3H), 6.57 (d, J=8.9 Hz, 0.7H), 4.65 (br s, 0.7H), 4.55 (d, J=2.8 Hz, 0.3H), 4.13-3.84 (m, 2.3H), 3.83-3.72 (m, 0.7H), 3.67 (d, J=3.5 Hz, 1H), 2.41 (s, 0.9H), 2.16 (s, 2.1H), 2.04-1.91 (m, 1H), 1.80-1.37 (m, 5H), 1.31-1.19 (m, 3H).
Prepared analogous to Example 187 substituting intermediate A-21 with intermediate A-9. MS (ESI) mass calcd. for C23H21F3N6O, 454.2; m/z found 455 [M+H]+. 1H NMR (DMSO-D6): 8.95-8.81 (m, 2H), 8.37 (s, 0.3H), 8.32 (d, J=8.0 Hz, 0.3H), 8.25-8.13 (m, 1.4H), 7.68 (dd, J=8.8, 2.1 Hz, 0.3H), 7.60 (dd, J=8.9, 2.2 Hz, 0.7H), 7.52-7.39 (m, 2H), 7.30 (d, J=8.1 Hz, 0.7H), 7.25 (d, J=3.7 Hz, 0.3H), 6.75 (d, J=8.8 Hz, 0.3H), 6.54 (d, J=8.9 Hz, 0.7H), 4.61 (t, J=4.2 Hz, 0.7H), 4.51 (d, J=4.2 Hz, 0.3H), 4.01-3.82 (m, 2H), 2.58 (s, 0.9H), 2.24 (s, 2.1H), 2.07-1.95 (m, 1H), 1.86-1.32 (m, 5H).
Prepared analogous to Example 187 substituting intermediate A-21 with intermediate A-1. MS (ESI) mass calcd. for C21H19F3N6O, 428.2; m/z found 409.2 [M+H]+. 1H NMR (MeOD): 8.38 (s, 0.3H), 8.16 (s, 0.7H), 8.08 (s, 2H), 7.85 (d, J=7.2 Hz, 0.3H), 7.74-7.53 (m, 3H), 7.46-7.35 (m, 1.3H), 7.31 (d, J=6.1 Hz, 0.7H), 7.14 (t, J=7.5 Hz, 0.7H), 6.68 (d, J=8.9 Hz, 0.3H), 6.62 (d, J=8.9 Hz, 0.7H), 4.57 (t, J=4.5 Hz, 0.7H), 4.41 (d, J=4.8 Hz, 0.3H), 4.04-3.95 (m, 0.3H), 3.88-3.76 (m, 1H), 3.55 (br s, 0.7H), 1.97 (dd, J=12.7, 8.0 Hz, 1H), 1.79-1.23 (m, 5H).
Step A: (±)-tert-butyl 2-((4,6-dimethylpyrimidin-2-yl)amino)-7-azabicyclo[2.2.1]heptane-7-carboxylate. To a microwave vial was weighed intermediate B-6 (210 mg, 1 mmol), 2-chloro-4,6-dimethylpyrimidine (212 mg, 1.5 mmol), sodium tert-butoxide (142 mg, 1.5 mmol), Pd(dba)2 (28 mg, 5 mol %), Ctc-Q-Phos (44 mg, 10 mol). The vial was capped, evacuated and refilled with N2 (2×). Then PhCH3 (1 mL) was added and the reaction was heated at 125° C. for 4 h. The reaction allowed to cool to rt, applied directly purified via silica gel chromatography 1-7% 2M NH3/MeOH in DCM to give P1 (125 mg, 40%). MS (ESI) mass calcd. for C17H26N4O2, 318.2; m/z found 319.3 [M+H]+. 1H NMR (CDCl3): 6.31 (s, 1H), 5.18-4.94 (m, 1H), 4.35-4.13 (m, 2H), 4.08 (td, J=7.9, 3.2 Hz, 1H), 2.27 (s, 6H), 1.97 (dd, J=12.9, 7.8 Hz, 1H), 1.82-1.62 (m, 2H), 1.62-1.30 (m, 12H).
Step B: (±)-N-(4,6-dimethylpyrimidin-2-yl)-7-azabicyclo[2.2.1]heptan-2-amine. To the title compound of step A (125 mg, 0.4 mmol) in DCM (3 mL) was added TFA (3 mL). After starting material was consumed, the reaction was concentrated, neutralized with 5% Na2CO3 and extracted with DCM. The combined organics were dried (Na2SO4) to give the title compound that was used in subsequent reactions without further purification. MS (ESI) mass calcd. for C12H18N4, 218.2; m/z found 219.2 [M+H]+.
Step C: (±)-(2-((4,6-dimethylpyrimidin-2-yl)amino)-7-azabicyclo[2.2.1]heptan-7-yl)(5-fluoro-2-(2H-1,2,3-triazol-2-yl)phenyl)methanone. Prepared analogous to Example 181 substituting intermediate A-1 with intermediate A-10 and (1 S,2R,4R)—N-(5-(trifluoromethyl)pyrazin-2-yl)-7-azabicyclo[2.2.1]heptan-2-amine with the title compound of step B. MS (ESI) mass calcd. for C21H22FN7O, 407.2; m/z found 408.2 [M+H]+. 1H NMR (CDCl3): 8.23-7.67 (m, 2.5H), 7.54-6.93 (m, 2.5H), 6.40-6.19 (m, 1H), 4.89-4.65 (m, 1H), 4.41-3.66 (m, 2H), 2.39-1.34 (m, 12H).
Prepared analogous to Example 197 substituting intermediate A-10 with intermediate A-11. MS (ESI) mass calcd. for C21H22FN7O, 407.2; m/z found 408.2 [M+H]+.
Prepared analogous to Example 197 substituting intermediate A-10 with intermediate A-12. MS (ESI) mass calcd. for C21H22FN7O, 407.2; m/z found 408.2 [M+H]+. 1H NMR (MeOD): 8.23-7.33 (m, 4H), 7.22-6.75 (m, 1H), 6.42-6.21 (m, 1H), 4.91-4.73 (m, 1H), 4.44-4.01 (m, 1H), 3.97-3.71 (m, 1H), 2.41-1.30 (m, 12H).
Prepared analogous to Example 187 substituting 2-chloro-5-(trifluoromethyl)pyridine with 2-chloro-4,6-dimethylpyrimidine and intermediate A-21 with intermediate A-9. MS (ESI) mass calcd. for C23H25N70, 415.2; m/z found 416 [M+H]+. 1H NMR (DMSO-D6): 9.05 (d, J=4.9 Hz, 0.6H), 8.90 (d, J=4.9 Hz, 1.4H), 8.37 (d, J=8.1 Hz, 0.3H), 8.28 (d, J=8.0 Hz, 0.7H), 7.57-7.45 (m, 1.3H), 7.41 (d, J=8.1 Hz, 0.7H), 7.09 (d, J=7.8 Hz, 0.7H), 6.46 (s, 0.3H), 6.43-6.29 (m, 1H), 4.62 (br s, 0.7H), 4.51 (d, J=4.4 Hz, 0.3H), 4.15-3.97 (m, 1H), 3.97-3.92 (m, 0.3H), 3.89 (d, J=3.7 Hz, 0.7H), 2.59 (s, 0.9H), 2.50 (s, 2.1H), 2.26 (s, 1.8H), 2.14 (s, 4.2H), 2.05 (dd, J=12.5, 7.6 Hz, 1H), 1.99-1.37 (m, 5H).
Prepared analogous to Example 200 substituting intermediate A-9 with intermediate A-21. MP=171.9° C. 1H NMR (DMSO-D6): 8.28-8.17 (m, 1.2H), 8.17-8.09 (m, 1.8H), 7.57 (d, J=8.4 Hz, 0.4H), 7.46 (d, J=8.4 Hz, 0.6H), 6.89 (d, J=7.0 Hz, 0.6H), 6.46 (s, 0.4H), 6.42 (d, J=7.5 Hz, 0.4H), 6.35 (s, 0.6H), 4.59 (t, J=4.2 Hz, 0.6H), 4.50 (d, J=4.9 Hz, 0.4H), 4.08 (td, J=7.8, 3.0 Hz, 0.4H), 4.00-3.86 (m, 1.6H), 2.60 (s, 1.2H), 2.45 (s, 1.8H), 2.26 (s, 2.4H), 2.15 (s, 3.6H), 1.97 (ddd, J=16.3, 12.6, 7.9 Hz, 1H), 1.83-1.35 (m, 5H).
Prepared analogous to Example 200 substituting intermediate A-9 with intermediate A-1. MP=154.2° C. 1H NMR (DMSO-D6): 8.12 (s, 1H), 8.07 (s, 1H), 7.85 (d, J=7.7 Hz, 0.5H), 7.77 (d, J=6.8 Hz, 0.5H), 7.72-7.61 (m, 1H), 7.58 (dd, J=10.7, 4.2 Hz, 0.5H), 7.49-7.39 (m, 1H), 7.15 (t, J=7.5 Hz, 0.5H), 6.99 (d, J=6.1 Hz, 0.5H), 6.87 (br s, 0.5H), 6.43 (s, 0.5H), 6.33 (s, 0.5H), 4.51 (t, J=4.1 Hz, 0.5H), 4.37 (d, J=3.9 Hz, 0.5H), 4.12-3.97 (m, 0.5H), 3.88-3.72 (m, 1H), 3.68 (d, J=4.4 Hz, 0.5H), 2.24 (s, 3H), 2.15 (s, 3H), 1.97-1.21 (m, 6H).
Prepared analogous to Example 200 substituting intermediate A-9 with intermediate A-8. MS (ESI) mass calcd. for C21H27N5O2, 381.2; m/z found 382.5 [M+H]+. MP=137.8° C. 1H NMR (DMSO-D6): 7.20-7.01 (m, 2H), 6.45 (d, J=8.5 Hz, 0.7H), 6.31 (s, 0.3H), 6.24 (s, 0.7H), 5.31 (d, J=8.6 Hz, 0.3H), 4.91 (t, J=4.5 Hz, 0.7H), 4.80 (d, J=5.1 Hz, 0.3H), 4.32-4.14 (m, 1.7H), 4.14-3.98 (m, 1.3H), 3.80 (t, J=4.7 Hz, 0.3H), 3.75 (d, J=4.6 Hz, 0.7H), 2.53 (s, 2.1H), 2.49 (s, 0.9H), 2.26 (s, 1.8H), 2.22 (s, 4.2H), 2.20-2.08 (m, 1H), 2.05-1.49 (m, 5H), 1.48-1.40 (m, 3H).
Step A: (±)-tert-butyl 2-(quinoxalin-2-ylamino)-7-azabicyclo[2.2.1]heptane-7-carboxylate. To intermediate B-6 (500 mg, 2.4 mmol) in dry DMA (7 mL) was added K2CO3 (650 mg, 4.7 mmol) and 2-chloroquinoxaline (580 mg, 3.5 mmol). After heating at 80° C. for 48 h, the mixture was cooled to rt and saturated NaHCO3 (aq) was added. The mixture was extracted with EtOAc (3×). The combined organics were washed with brine and dried (MgSO4). Purification via silica gel chromatography (0-25% EtOAc in heptanes) gave the title compound. MS (ESI) mass calcd. for C19H24N4O2, 340.2; m/z found 341.0 [M+H]+.
Step B: N-((±)-7-azabicyclo[2.2.1]heptan-2-yl)quinoxalin-2-amine hydrochloride. To the title compound from step A (343 mg, 1 mmol) in 1,4-dioxane (10 mL) was added 6N HCl in iPrOH (1 mL). The reaction was heated to 70° C. for 2 h, cooled to rt, concentrated and used without further purification in subsequent steps.
Step C: (±)-(2-(2H-1,2,3-triazol-2-yl)phenyl)(2-(quinoxalin-2-ylamino)-7-azabicyclo[2.2.1]heptan-7-yl)methanone. Prepared analogous to Example 187 substituting intermediate A-21 with intermediate A-1 and (±)-N-(5-(trifluoromethyl)pyridin-2-yl)-7-azabicyclo[2.2.1]heptan-2-amine hydrochloride with the title compound from step B. MS (ESI) mass calcd. for C23H21N70, 411.2; m/z found 412 [M+H]+. 1H NMR (DMSO-D6): 8.38 (s, 0.3H), 8.31 (s, 0.7H), 8.08 (s, 2H), 7.88-7.73 (m, 1.3H), 7.72-7.20 (m, 7H), 7.14-7.04 (m, 0.7H), 4.60 (t, J=4.4 Hz, 0.7H), 4.54 (d, J=4.7 Hz, 0.3H), 4.15-4.03 (m, 0.3H), 3.97-3.87 (m, 0.7H), 3.82 (t, J=3.9 Hz, 0.3H), 3.65 (d, J=3.2 Hz, 0.7H), 2.12-1.96 (m, 1H), 1.84-1.28 (m, 5H).
Prepared analogous to Example 204 substituting with intermediate A-1 with intermediate A-21. MP=260.8° C. 1H NMR (DMSO-D6): 8.44 (s, 0.3H), 8.32 (s, 0.7H), 8.19 (d, J=8.4 Hz, 0.3H), 8.13 (s, 2H), 7.96 (d, J=8.3 Hz, 0.7H), 7.83-7.72 (m, 1H), 7.68-7.27 (m, 4.3H), 7.19 (d, J=8.4 Hz, 0.7H), 4.64 (br s, 1H), 4.06-3.86 (m, 2H), 2.61 (s, 0.9H), 2.09 (s, 2.1H), 2.06-1.99 (m, 1H), 1.88-1.62 (m, 2H), 1.62-1.38 (m, 3H).
Prepared analogous to Example 204 substituting intermediate A-1 with 3-fluoro-2-methoxybenzoic acid. MP=179.2° C. 1H NMR (DMSO-D6): 8.38 (s, 0.3H), 8.27 (s, 0.7H), 7.80 (d, J=8.0 Hz, 0.3H), 7.73 (d, J=8.0 Hz, 0.7H), 7.65-7.52 (m, 1.4H), 7.52-7.28 (m, 2.7H), 7.28-7.15 (m, 0.7H), 7.09 (d, J=7.6 Hz, 0.7H), 6.96 (ddd, J=11.7, 8.2, 1.4 Hz, 0.7H), 6.75 (td, J=7.9, 4.8 Hz, 0.7H), 4.75-4.63 (m, 1H), 4.11-4.01 (m, 0.4H), 3.99-3.90 (m, 0.7H), 3.86 (br s, 0.9H), 3.83-3.73 (m, 2.1H), 2.06 (dt, J=16.7, 8.4 Hz, 1H), 1.87-1.45 (m, 6H).
Prepared analogous to Example 204 substituting with intermediate A-1 with intermediate A-8. MS (ESI) mass calcd. for C23H25N5O2, 403.2; m/z found 404 [M+H]+. MP=184.9 C. 1H NMR (DMSO-D6): 8.41 (s, 0.3H), 8.26 (s, 0.7H), 7.79 (d, J=8.1 Hz, 0.3H), 7.72 (d, J=8.0 Hz, 0.7H), 7.64-7.53 (m, 1.7H), 7.50-7.22 (m, 2.9H), 7.18 (d, J=8.6 Hz, 0.7H), 6.86 (d, J=8.6 Hz, 0.7H), 4.68 (br s, 1H), 4.12-3.83 (m, 3H), 3.79 (d, J=4.1 Hz, 0.7H), 3.71 (br s, 0.3H), 2.41 (s, 0.9H), 2.11-1.96 (m, 3.1H), 1.89-1.42 (m, 5H), 1.25 (t, J=6.9 Hz, 3H).
Prepared analogous to Example 204 substituting with intermediate A-1 with intermediate A-9. MS (ESI) mass calcd. for C25H23N70, 437.2; m/z found 438 [M+H]+. 1H NMR (DMSO-D6): 8.93-8.82 (m, 2H), 8.46 (s, 0.3H), 8.33 (d, J=8.1 Hz, 0.3H), 8.27 (s, 0.7H), 8.14 (d, J=8.0 Hz, 0.7H), 7.81-7.26 (m, 6.3H), 7.17 (d, J=8.1 Hz, 0.7H), 4.66 (br s, 1H), 4.06-3.94 (m, 2H), 2.60 (s, 0.9H), 2.13-2.01 (m, 3.1H), 1.92-1.36 (m, 5H).
Step A: (±)-tert-butyl-2-((6-(trifluoromethyl)pyridin-2-yl)amino)-7-azabicyclo[2.2.1]heptane-7-carboxylate. To 2-chloro-6-(trifluoromethyl)pyridine (113 mg, 0.6 mmol) in THF (3 mL) was added sodium tert-butoxide (120 mg, 1.2 mmol), Xanphos (26 mg, 7 mol %) and Pd2(dba)3 (23 mg, 4 mol %) at rt while N2 was bubbled through the solution. After 10 minutes, intermediate B-6 (132 mg, 0.6 mmol) was added. The reaction mixture was heated at 90° C. for 3 h. After allowing to cool to rt, saturated NaHCO3 (aq) the mixture extracted with EtOAc (2×). The combined organics were dried (MgSO4). Purification via silica gel chromatography (0-7% EtOAc in heptane) gave the title compound. MS (ESI) mass calcd. for C17H22F3N3O2, 357.2; m/z found 358.4 [M+H]+.
Step B: (±)-N-(6-(trifluoromethyl)pyridin-2-yl)-7-azabicyclo[2.2.1]heptan-2-amine hydrochloride. Prepared analogous to Example 204 substituting (±)-tert-butyl 2-(quinoxalin-2-ylamino)-7-azabicyclo[2.2.1]heptane-7-carboxylate with the title compound of step A.
Step C: (±)-tert-butyl-2-((6-(trifluoromethyl)pyridin-2-yl)amino)-7-azabicyclo[2.2.1]heptane-7-carboxylate. Prepared analogous to Example 204 substituting N-((±)-7-azabicyclo[2.2.1]heptan-2-yl)quinoxalin-2-amine hydrochloride with the title compound of step B. MS (ESI) mass calcd. for C21H19F3N6O, 428.2; m/z found 429. [M+H]+. MP=96.8° C. 1H NMR (DMSO-D6): 8.07 (s, 2H), 7.85 (d, J=7.9 Hz, 0.3H), 7.74-7.51 (m, 2.7H), 7.46-7.36 (m, 1.3H), 7.17-6.94 (m, 2H), 6.86 (d, J=7.2 Hz, 0.7H), 6.82 (d, J=8.6 Hz, 0.3H), 6.74 (d, J=8.4 Hz, 0.7H), 4.55 (t, J=4.5 Hz, 0.7H), 4.41 (d, J=4.6 Hz, 0.3H), 3.94-3.84 (m, 0.3H), 3.84-3.71 (m, 1H), 3.61 (d, J=4.6 Hz, 0.7H), 1.96 (dd, J=12.6, 8.0 Hz, 1H), 1.80-1.21 (m, 5H).
Prepared analogous to Example 209 substituting 2-chloro-6-(trifluoromethyl)pyridine with 2-chloro-4-(trifluoromethyl)pyridine. MP=153.5° C. MS (ESI) mass calcd. for C21H19F3N6O, 428.2; m/z found 429 [M+H]+. 1H NMR (DMSO-D6): 8.27 (d, J=5.3 Hz, 0.3H), 8.12-7.99 (m, 2.7H), 7.85 (d, J=7.9 Hz, 0.3H), 7.72-7.54 (m, 1.6H), 7.50-7.33 (m, 1.4H), 7.13-6.92 (m, 2H), 6.82 (d, J=12.6 Hz, 0.3H), 6.78 (s, 0.7H), 6.67 (d, J=5.3 Hz, 0.7H), 4.56 (t, J=4.5 Hz, 0.7H), 4.41 (d, J=4.6 Hz, 0.3H), 4.04-3.93 (m, 0.3H), 3.86-3.72 (m, 1H), 3.52 (br s, 0.7H), 1.96 (dd, J=12.6, 8.0 Hz, 1H), 1.78-1.17 (m, 5H).
Prepared analogous to Example 209 substituting 2-chloro-6-(trifluoromethyl)pyridine with 5-chloro-2-iodopyridine. MS (ESI) mass calcd. for C20H19ClN6O, 394.1; m/z found 395 [M+H]+. MP=157.0° C. 1H NMR (DMSO-D6): 8.14-7.99 (m, 2.3H), 7.87-7.79 (m, 1H), 7.71-7.52 (m, 1.7H), 7.52-7.36 (m, 2.6H), 7.23-7.11 (m, 0.7H), 6.80 (d, J=6.4 Hz, 0.7H), 6.58 (d, J=9.0 Hz, 0.3H), 6.52 (d, J=8.9 Hz, 0.7H), 4.53 (t, J=4.6 Hz, 0.7H), 4.37 (d, J=4.6 Hz, 0.3H), 3.92-3.82 (m, 0.3H), 3.81-3.68 (m, 1H), 3.52 (d, J=4.3 Hz, 0.7H), 1.94 (dd, J=12.5, 8.1 Hz, 1H), 1.73-1.22 (m, 5H).
Prepared analogous to Example 209 substituting 2-chloro-6-(trifluoromethyl)pyridine with 3-chloro-6-(trifluoromethyl)pyridazine. MP=134.0° C. MS (ESI) mass calcd. for C20H18F3N7O, 429.2; m/z found 430 [M+H]+. 1H NMR (DMSO-D6): 8.08 (s, 1.4H), 8.07 (s, 0.6H), 7.85 (d, J=7.8 Hz, 0.3H), 7.77-7.46 (m, 3.6H), 7.44-7.31 (m, 1.4H), 7.20-7.09 (m, 0.7H), 7.06 (d, J=9.4 Hz, 0.3H), 6.98 (d, J=9.3 Hz, 0.7H), 4.59 (t, J=4.4 Hz, 0.7H), 4.48 (d, J=4.7 Hz, 0.3H), 3.97-3.87 (m, 0.7H), 3.81 (t, J=4.0 Hz, 0.3H), 3.58-3.56 (m, 1H), 2.01 (dd, J=12.9, 8.0 Hz, 1H), 1.82-1.18 (m, 5H).
Prepared analogous to Example 209 substituting 2-chloro-6-(trifluoromethyl)pyridine with 2-chloro-5-methoxypyridine. MS (ESI) mass calcd. for C21H22N6O2, 390.2; m/z found 391 [M+H]+. MP=174.0° C. 1H NMR (DMSO-D6): 8.31 (s, 0.3H), 8.13-8.02 (m, 2H), 7.84 (d, J=8.0 Hz, 0.3H), 7.79 (d, J=3.0 Hz, 0.3H), 7.71-7.61 (m, 1.3H), 7.60-7.53 (m, 1H), 7.50-7.37 (m, 1.4H), 7.22-7.04 (m, 1.7H), 6.52 (d, J=9.0 Hz, 0.3H), 6.46 (d, J=9.0 Hz, 0.7H), 6.21 (d, J=6.9 Hz, 0.7H), 4.52 (t, J=4.5 Hz, 0.7H), 4.37 (d, J=4.5 Hz, 0.2H), 3.90-3.79 (m, 0.3H), 3.79-3.68 (m, 1.9H), 3.64 (s, 2.1H), 3.57 (d, J=4.0 Hz, 0.7H), 1.98-1.84 (m, 1H), 1.76-1.21 (m, 5H).
Prepared analogous to Example 209 substituting 2-chloro-6-(trifluoromethyl)pyridine with 2-chloro-5-methylpyridine. MS (ESI) mass calcd. for C21H22N6O, 374.2; m/z found 375.2 [M+H]+. 1H NMR (DMSO-D6): 8.32 (s, 0.7H), 8.09 (s, 0.6H), 8.07 (s, 1.4H), 7.89-7.80 (m, 0.6H), 7.72-7.53 (m, 2.1H), 7.52-7.37 (m, 1.3H), 7.27 (dd, J=8.5, 2.2 Hz, 0.3H), 7.23-7.11 (m, 1.3H), 6.47 (d, J=8.5 Hz, 0.3H), 6.41 (d, J=8.2 Hz, 0.7H), 6.35 (d, J=6.9 Hz, 0.7H), 4.53 (t, J=4.5 Hz, 0.7H), 4.37 (d, J=4.4 Hz, 0.3H), 3.95-3.84 (m, 0.3H), 3.84-3.70 (m, 1H), 3.56 (d, J=4.3 Hz, 0.7H), 2.12 (s, 0.9H), 2.04 (s, 2.1H), 1.99-1.86 (m, 1H), 1.78-1.24 (m, 5H).
Prepared analogous to Example 209 substituting 2-chloro-6-(trifluoromethyl)pyridine with 2-iodopyridine. MS (ESI) mass calcd. for C20H20N6O, 360.2; m/z found 361 [M+H]+. MP=167.9° C. 1H NMR (DMSO-D6): 8.12-8.00 (m, 2.3H), 7.88-7.79 (m, 1H), 7.73-7.53 (m, 1.5H), 7.50-7.28 (m, 2.5H), 7.13 (t, J=7.4 Hz, 0.7H), 6.63-6.37 (m, 3H), 4.54 (t, J=4.5 Hz, 0.7H), 4.39 (d, J=4.4 Hz, 0.3H), 3.92 (td, J=7.5, 3.2 Hz, 0.3H), 3.86-3.73 (m, 1H), 3.58 (d, J=4.3 Hz, 0.7H), 2.02-1.86 (m, 1H), 1.78-1.23 (m, 5H).
Step A: (±)-tert-butyl 2-((5-chlorobenzo[d]oxazol-2-yl)amino)-7-azabicyclo[2.2.1]heptane-7-carboxylate. To intermediate B-6 (116 mg, 0.6 mmol) in 1,4-dioxane (3 mL) was added DIPEA (190 μL, 1.1 mmol) and 5-chloro-2-(methylsulfinyl)benzo[d]oxazole (235 mg, 1.1 mmol). After heating at 80° C. for 4 h, the mixture was cooled to rt and saturated NaHCO3 (aq) was added. The aqueous layer was extracted with EtOAc (3×). The combined organics were dried (MgSO4). Purification via silica gel chromatography (0-10% EtOAc in hexanes) gave the title compound (130 mg, 66%). MS (ESI) mass calcd. for C18H22ClN3O3, 363.1; m/z found 364.0 [M+H]+.
Step B: N-((±)-7-azabicyclo[2.2.1]heptan-2-yl)-5-chlorobenzo[d]oxazol-2-amine hydrochloride. Prepared analogous to Example 209 substituting (±)-tert-butyl-2-((6-(trifluoromethyl)pyridin-2-yl)amino)-7-azabicyclo[2.2.1]heptane-7-carboxylate with the title compound of step A. MS (ESI) mass calcd. for C13H14ClN3O, 263.1; m/z found 264.0 [M+H]+.
Step C: (±)-(2-(2H-1,2,3-triazol-2-yl)phenyl)(2-((5-chlorobenzo[d]oxazol-2-yl)amino)-7-azabicyclo[2.2.1]heptan-7-yl)methanone. Prepared analogous to Example 209 substituting (±)-N-(6-(trifluoromethyl)pyridin-2-yl)-7-azabicyclo[2.2.1]heptan-2-amine hydrochloride with the title compound of step B. MS (ESI) mass calcd. for C22H19ClN6O2, 434.1; m/z found 435 [M+H]+. 1H NMR (DMSO-D6): 8.20 (d, J=5.6 Hz, 1H), 8.13-8.05 (m, 2H), 7.85 (d, J=7.4 Hz, 0.3H), 7.76 (d, J=7.3 Hz, 0.3H), 7.72-7.55 (m, 1.3H), 7.53-7.44 (m, 0.7H), 7.44-7.29 (m, 2H), 7.24 (d, J=2.1 Hz, 0.7H), 7.16-7.08 (m, 0.7H), 7.08-6.98 (m, 1H), 4.66-4.47 (m, 1H), 3.97-3.86 (m, 0.3H), 3.82 (t, J=3.9 Hz, 0.3H), 3.79-3.66 (m, 1.4H), 2.07-1.92 (m, 1H), 1.88-1.22 (m, 5H).
Prepared analogous to Example 209 substituting 2-chloro-6-(trifluoromethyl)pyridine with 5-bromo-2-iodopyridine and intermediate A-1 with intermediate A-9. MS (ESI) mass calcd. for C22H21BrN6O, 464.1; m/z found 466 [M+H]+. MP=221.8° C. 1H NMR (DMSO-D6): 8.96-8.78 (m, 2H), 8.32 (d, J=8.0 Hz, 0.3H), 8.19 (d, J=8.0 Hz, 0.7H), 8.10 (d, J=2.4 Hz, 0.3H), 7.93 (d, J=2.4 Hz, 0.7H), 7.56 (dd, J=8.9, 2.5 Hz, 0.3H), 7.51-7.39 (m, 2H), 7.33 (d, J=8.1 Hz, 0.7H), 6.93 (d, J=7.1 Hz, 0.7H), 6.66 (d, J=5.6 Hz, 0.3H), 6.61 (d, J=9.0 Hz, 0.3H), 6.36 (d, J=8.9 Hz, 0.7H), 4.59 (t, J=4.1 Hz, 0.7H), 4.47 (d, J=4.3 Hz, 0.3H), 3.96-3.75 (m, 2H), 2.58 (s, 0.9H), 2.31 (s, 2.1H), 2.07-1.91 (m, 1H), 1.88-1.30 (m, 5H).
Prepared analogous to Example 217 substituting intermediate A-9 with 3-fluoro-2-methoxybenzoic acid. MS (ESI) mass calcd. for C19H19BrFN3O2, 419.1; m/z found 420.1 [M+H]+. MP=175.2° C. 1H NMR (DMSO-D6): 8.10 (d, J=2.4 Hz, 0.3H), 7.90 (d, J=2.4 Hz, 0.7H), 7.56 (dd, J=8.9, 2.5 Hz, 0.3H), 7.47 (dd, J=8.9, 2.5 Hz, 0.7H), 7.34 (ddd, J=11.7, 7.5, 2.3 Hz, 0.3H), 7.24-7.08 (m, 1.3H), 7.02 (d, J=7.6 Hz, 0.7H), 6.87-6.66 (m, 1.7H), 6.54 (d, J=8.9 Hz, 0.3H), 6.46 (d, J=8.9 Hz, 0.7H), 4.63 (br s, 0.7H), 4.50 (d, J=4.8 Hz, 0.3H), 3.88-3.68 (m, 4.3H), 3.58 (d, J=2.9 Hz, 0.7H), 2.05-1.87 (m, 1H), 1.78-1.20 (m, 5H).
Prepared analogous to Example 217 substituting intermediate A-9 with intermediate A-8. MS (ESI) mass calcd. for C20H23BrN4O2, 430.1; m/z found 431.1 [M+H]+. MP=134.5° C. 1H NMR (DMSO-D6): 8.10 (d, J=2.4 Hz, 0.3H), 7.88 (d, J=2.4 Hz, 0.7H), 7.55 (dd, J=8.9, 2.5 Hz, 0.3H), 7.50-7.41 (m, 1H), 7.30 (d, J=8.6 Hz, 0.7H), 7.24 (d, J=8.6 Hz, 0.3H), 7.08 (d, J=8.6 Hz, 0.7H), 6.76 (d, J=5.7 Hz, 0.7H), 6.63 (d, J=5.3 Hz, 0.3H), 6.57 (d, J=8.9 Hz, 0.3H), 6.43 (d, J=8.9 Hz, 0.7H), 4.62 (br s, 0.7H), 4.51 (d, J=2.8 Hz, 0.3H), 4.13-3.88 (m, 2H), 3.83-3.73 (m, 0.3H), 3.72-3.61 (m, 1H), 3.59 (d, J=3.5 Hz, 0.7H), 2.39 (s, 0.9H), 2.21 (s, 2.1H), 2.02-1.85 (m, 1H), 1.75-1.33 (m, 5H), 1.25 (td, J=6.9, 3.6 Hz, 3H).
Prepared analogous to Example 217 substituting intermediate A-9 with intermediate A-21. MS (ESI) mass calcd. for C20H20BrN7O, 453.1; m/z found 454.1 [M+H]+. MP=214.9° C. 1H NMR (DMSO-D6): 8.18 (d, J=8.4 Hz, 0.3H), 8.14-8.09 (m, 2.3H), 8.05 (d, J=8.4 Hz, 0.7H), 7.93 (d, J=2.4 Hz, 0.7H), 7.62-7.53 (m, 0.6H), 7.50 (dd, J=8.9, 2.5 Hz, 0.7H), 7.40 (d, J=8.4 Hz, 0.7H), 6.76 (d, J=6.3 Hz, 0.7H), 6.61 (d, J=8.9 Hz, 0.3H), 6.52 (d, J=5.7 Hz, 0.3H), 6.45 (d, J=8.9 Hz, 0.7H), 4.58 (t, J=4.5 Hz, 0.7H), 4.47 (d, J=4.8 Hz, 0.3H), 3.91 (t, J=4.3 Hz, 0.3H), 3.88-3.68 (m, 1.7H), 2.60 (s, 0.9H), 2.31 (s, 2.1H), 2.03-1.90 (m, 1H), 1.81-1.29 (m, 5H).
Prepared analogous to Example 220 substituting intermediate A-21 with intermediate A-1. MP=167.1° C. 1H NMR (DMSO-D6): 8.75 (s, 0.4H), 8.70 (s, 0.4H), 8.66 (s, 0.6H), 8.53 (s, 0.6H), 8.12-8.03 (m, 2.6H), 7.86 (d, J=7.3 Hz, 0.4H), 7.80 (d, J=7.2 Hz, 0.4H), 7.72-7.54 (m, 1.6H), 7.48-7.34 (m, 1.4H), 7.16 (t, J=7.4 Hz, 0.6H), 4.56 (br s, 0.6H), 4.41 (d, J=4.3 Hz, 0.4H), 4.08 (dd, J=11.1, 6.8 Hz, 0.4H), 3.90-3.75 (m, 1H), 3.61 (d, J=4.3 Hz, 0.6H), 2.01-1.27 (m, 6H).
Prepared analogous to Example 221 substituting intermediate A-1 with 3-fluoro-2-methoxybenzoic acid. 1H NMR (DMSO-D6): 8.72 (br d, J=22.6 Hz, 0.8H), 8.58 (br d, J=24.1 Hz, 1.2H), 8.12 (br d, J=5.6 Hz, 0.4H), 7.99 (br d, J=5.0 Hz, 0.6H), 7.45-7.23 (m, 0.8H), 7.26-7.06 (m, 1.2H), 6.97 (d, J=7.5 Hz, 0.6H), 6.90-6.72 (m, 0.6H), 4.65 (br s, 0.6H), 4.53 (d, J=4.8 Hz, 0.4H), 3.97 (dd, J=11.4, 6.0 Hz, 0.4H), 3.84 (s, 1.2H), 3.93-3.71 (m, 1H), 3.78 (s, 1.8H), 3.69 (br d, J=2.9 Hz, 0.6H), 2.06-1.35 (m, 6H)
Prepared analogous to Example 221 substituting intermediate A-1 with intermediate A-21. 1H NMR (DMSO-D6): 8.74 (br d, J=12.1 Hz, 0.4H), 8.63 (br d, J=13.2 Hz, 1.2H), 8.26-8.01 (m, 3.4H), 7.61 (dd, J=21.8, 7.4 Hz, 0.4H), 7.43 (d, J=8.4 Hz, 0.6H), 4.61 (br s, 0.6H), 4.55 (d, J=5.0 Hz, 0.4H), 4.11-4.01 (m, 0.4H), 4.02-3.93 (m, 1H), 3.88 (dd, J=10.1, 6.1 Hz, 0.6H), 3.22-3.06 (m, 1H), 2.60 (s, 1H), 2.30 (s, 2H), 2.06-1.34 (n, 6H).
Prepared analogous to Example 221 substituting intermediate A-1 with intermediate A-8. 1H NMR (DMSO-D6): 8.79 (br d, J=22.9 Hz, 0.6H), 8.65 (br d, J=17.4 Hz, 1.4H), 8.21 (d, J=5.3 Hz, 0.7H), 7.92 (d, J=5.2 Hz, 0.3H), 7.52 (d, J=8.6 Hz, 0.3H), 7.42 (d, J=8.6 Hz, 0.7H), 7.32 (d, J=8.6 Hz, 0.3H), 7.18 (d, J=8.6 Hz, 0.7H), 4.71 (br s, 0.7H), 4.64 (br d, J=4.7 Hz, 0.3H), 4.23-3.93 (m, 2.5H), 3.93-3.78 (m, 1.4H), 3.78-3.55 (m, 1.7H), 3.31-3.07 (m, 1.4H), 2.47 (s, 1H), 2.31 (s, 2H), 2.06-1.40 (m, 6H).
Prepared analogous to Example 221 substituting intermediate A-1 with intermediate A-9. MP=203° C. MS (ESI) mass calcd. for C22H20F3N7O, 455.2; m/z found 427.5 [M+H]+. 1H NMR (DMSO-D6): 8.94 (d, J=4.9 Hz, 0.4H), 8.89 (d, J=4.9 Hz, 1.6H), 8.77 (s, 0.2H), 8.71 (s, 0.2H), 8.61 (s, 1.4H), 8.36 (d, J=8.1 Hz, 0.2H), 8.24 (d, J=7.9 Hz, 1.8H), 7.72 (d, J=6.0 Hz, 0.2H), 7.54-7.44 (m, 1.2H), 7.38 (d, J=8.1 Hz, 0.8H), 4.64 (br s, 0.8H), 4.58 (d, J=4.6 Hz, 0.2H), 4.06-3.90 (m, 2H), 2.60 (s, 0.6H), 2.35 (s, 2.4H), 2.11-1.73 (m, 4H), 1.62-1.35 (m, 2H).
Prepare analogous to Example 222 substituting intermediate B-6 with intermediate B-7. MS (ESI) mass calcd. for C19H18F4N4O2, 410.2; m/z found 411.3 [M+H]+. 1H NMR (DMSO-D6): 8.75 (s, 0.5H), 8.68 (s, 0.5H), 8.61 (s, 0.5H), 8.57 (s, 0.5H), 8.52 (d, J=6.3 Hz, 0.5H), 8.44 (d, J=6.3 Hz, 0.5H), 7.44-7.29 (m, 1H), 7.23-7.08 (m, 2H), 4.82 (t, J=3.9 Hz, 0.5H), 4.58 (t, J=4.5 Hz, 0.5H), 4.34-4.12 (m, 1H), 3.94-3.81 (m, 3.5H), 3.68 (t, J=4.2 Hz, 0.5H), 2.31-2.11 (m, 1H), 1.93-1.40 (m, 5H).
Prepare analogous to Example 224 substituting intermediate B-6 with intermediate B-7. MP=79.7° C. MS (ESI) mass calcd. for C20H22F3N5O2, 421.2; m/z found 422.4 [M+H]+. 1H NMR (DMSO-D6): 8.76 (s, 0.5H), 8.68 (s, 0.5H), 8.61 (s, 0.5H), 8.56 (s, 0.5H), 8.52 (d, J=6.4 Hz, 0.5H), 8.44 (d, J=6.6 Hz, 0.5H), 7.48 (d, J=3.2 Hz, 0.5H), 7.45 (d, J=3.2 Hz, 0.5H), 7.28 (d, J=3.3 Hz, 0.5H), 7.25 (d, J=3.3 Hz, 0.5H), 4.83 (t, J=4.2 Hz, 0.5H), 4.59 (t, J=4.3 Hz, 0.5H), 4.40-4.29 (m, 0.5H), 4.28-4.19 (m, 0.5H), 4.16-4.01 (m, 2H), 3.79 (t, J=4.4 Hz, 0.5H), 3.61 (t, J=4.6 Hz, 0.5H), 2.41 (s, 1.5H), 2.40 (s, 1.5H), 2.30-2.09 (m, 1H), 1.93-1.41 (m, 5H), 1.34-1.23 (m, 3H).
Prepare analogous to Example 223 substituting intermediate B-6 with intermediate B-7. MS (ESI) mass calcd. for C20H19F3N8O, 444.2; m/z found 445.4 [M+H]+. MP=89.1° C. 1H NMR (DMSO-D6): 8.77 (s, 0.6H), 8.68 (s, 0.6H), 8.61 (s, 0.4H), 8.55 (s, 0.4H), 8.51 (d, J=6.3 Hz, 0.6H), 8.44 (d, J=6.3 Hz, 0.4H), 8.24-8.16 (m, 1H), 8.13 (s, 1H), 8.12 (s, 1H), 7.63-7.52 (m, 1H), 4.81 (t, J=4.2 Hz, 0.6H), 4.55 (t, J=4.2 Hz, 0.4H), 4.40-4.21 (m, 1H), 4.06 (t, J=4.4 Hz, 0.4H), 3.79 (t, J=4.4 Hz, 0.6H), 2.61 (s, 1.2H), 2.58 (s, 1.8H), 2.34-2.20 (m, 0.6H), 2.19-2.03 (m, 0.6H), 1.94-1.50 (m, 4.2H), 1.44 (dd, J=12.3, 4.6 Hz, 0.6H).
Prepare analogous to Example 207 substituting intermediate B-6 with intermediate B-7. MS (ESI) mass calcd. for C23H25N5O2, 403.2; m/z found 404.5 [M+H]+. MP=115.1° C. 1H NMR (DMSO-D6): 8.37 (s, 0.5H), 8.30 (s, 0.5H), 7.97 (t, J=5.4 Hz, 1H), 7.80 (d, J=7.4 Hz, 0.5H), 7.75 (d, J=7.1 Hz, 0.5H), 7.69-7.44 (m, 2.5H), 7.43-7.23 (m, 2.5H), 4.99 (t, J=4.4 Hz, 0.5H), 4.63 (t, J=4.6 Hz, 0.5H), 4.48-4.27 (m, 1H), 4.26-4.13 (m, 2H), 3.96 (t, J=4.4 Hz, 0.5H), 3.64 (t, J=4.6 Hz, 0.5H), 2.44 (s, 1.5H), 2.41 (s, 1.5H), 2.39-2.26 (m, 1H), 1.98-1.37 (m, 5H), 1.36-1.28 (m, 3H).
Prepare analogous to Example 205 substituting intermediate B-6 with intermediate B-7. MS (ESI) mass calcd. for C23H22N80, 426.2; m/z found 427.5 [M+H]+. MP=152.3° C. 1H NMR (DMSO-D6): 8.37 (s, 0.5H), 8.28-8.20 (m, 2H), 8.16-8.13 (m, 2H), 7.95 (dd, J=5.6, 3.6 Hz, 1H), 7.79 (d, J=8.1 Hz, 0.5H), 7.74 (d, J=8.1 Hz, 0.5H), 7.70-7.48 (m, 2.5H), 7.41-7.23 (m, 1.5H), 4.98 (t, J=4.2 Hz, 0.5H), 4.60 (t, J=4.6 Hz, 0.5H), 4.36-4.24 (m, 1H), 4.19 (t, J=4.5 Hz, 0.5H), 3.81 (t, J=4.6 Hz, 0.5H), 2.67 (s, 1.5H), 2.60 (s, 1.5H), 2.43-2.17 (m, 1H), 1.97-1.25 (m, 5H).
Prepare analogous to Example 206 substituting intermediate B-6 with intermediate B-7. 1H NMR (DMSO-D6): 8.36 (s, 0.5H), 8.29 (s, 0.5H), 8.08-7.95 (m, 1H), 7.85-7.69 (m, 1H), 7.69-7.49 (m, 1.5H), 7.49-7.27 (m, 2H), 7.27-7.12 (m, 2.5H), 5.00 (t, J=4.2 Hz, 0.5H), 4.62 (t, J=4.2 Hz, 0.5H), 4.43-4.17 (m, 1H), 4.11 (t, J=4.3 Hz, 0.5H), 3.95 (s, 1.5H), 3.88 (s, 1.5H), 3.72 (t, J=4.5 Hz, 0.5H), 2.45-2.25 (m, 1H), 1.99-1.46 (m, 4H), 1.46-1.28 (m, 1H).
Prepare analogous to Example 220 substituting intermediate B-6 with intermediate B-7. MP=196.0° C. 1H NMR (DMSO-D6): 8.25-8.16 (m, 1H), 8.16-8.10 (m, 2.6H), 7.90 (d, J=2.4 Hz, 0.4H), 7.63-7.53 (m, 1.6H), 7.50 (dd, J=8.9, 2.5 Hz, 0.4H), 7.19 (d, J=6.0 Hz, 0.6H), 7.12 (d, J=6.1 Hz, 0.4H), 6.54 (d, J=8.9 Hz, 0.6H), 6.44 (d, J=8.9 Hz, 0.4H), 4.81 (t, J=4.2 Hz, 0.6H), 4.54 (t, J=4.2 Hz, 0.4H), 4.23-4.07 (m, 1H), 4.04 (t, J=4.5 Hz, 0.4H), 3.75 (t, J=4.5 Hz, 0.6H), 2.61 (s, 1.2H), 2.58 (s, 1.8H), 2.36-2.05 (m, 1H), 1.92-1.41 (m, 4H), 1.30 (dd, J=12.4, 4.4 Hz, 0.4H), 1.18 (dd, J=12.2, 4.6 Hz, 0.6H).
Prepare analogous to Example 219 substituting intermediate B-6 with intermediate B-7. MP=176.1° C. H 1H NMR (DMSO-D6): 8.11 (d, J=2.4 Hz, 0.5H), 7.91 (d, J=2.4 Hz, 0.5H), 7.61-7.43 (m, 2H), 7.33-7.20 (m, 1.5H), 7.15 (d, J=6.1 Hz, 0.5H), 6.55 (d, J=8.9 Hz, 0.5H), 6.46 (d, J=8.9 Hz, 0.5H), 4.83 (t, J=4.3 Hz, 0.5H), 4.57 (t, J=4.6 Hz, 0.5H), 4.20 (d, J=5.5 Hz, 0.5H), 4.09 (dq, J=10.2, 6.9 Hz, 2.5H), 3.79 (t, J=4.3 Hz, 0.5H), 3.58 (t, J=4.6 Hz, 0.5H), 2.41 (s, 1.5H), 2.40 (s, 1.5H), 2.32-2.14 (m, 1H), 1.93-1.45 (m, 4H), 1.36-1.17 (m, 4H).
Prepare analogous to Example 217 substituting intermediate B-6 with intermediate B-7. MP=144.5° C. 1H NMR (DMSO-D6): 8.11 (d, J=2.4 Hz, 0.6H), 7.91 (d, J=2.4 Hz, 0.4H), 7.56 (dd, J=8.9, 2.5 Hz, 0.6H), 7.50 (dd, J=8.9, 2.5 Hz, 0.4H), 7.43-7.30 (m, 1H), 7.27-7.05 (m, 3H), 6.54 (d, J=8.9 Hz, 0.6H), 6.46 (d, J=8.9 Hz, 0.4H), 4.83 (t, J=4.3 Hz, 0.6H), 4.57 (t, J=4.7 Hz, 0.4H), 4.21-3.99 (m, 1H), 3.95-3.81 (m, 3.4H), 3.66 (t, J=4.7 Hz, 0.6H), 2.36-2.14 (m, 1H), 1.94-1.43 (m, 4H), 1.36-1.14 (m, 1H).
Prepare analogous to Example 210 substituting intermediate B-6 with intermediate B-7. MS (ESI) mass calcd. for C21H19F3N6O, 428.2; m/z found 429 [M+H]+. MP=274.2° C. 1H NMR (DMSO-D6): 8.27 (d, J=5.2 Hz, 0.5H), 8.13-8.01 (m, 2.5H), 7.89-7.80 (m, 1H), 7.73-7.61 (m, 1H), 7.61-7.51 (m, 2H), 7.44 (d, J=6.1 Hz, 0.5H), 7.38 (d, J=5.9 Hz, 0.5H), 6.83-6.75 (m, 1H), 6.73-6.63 (m, 1H), 4.78 (t, J=3.9 Hz, 0.5H), 4.50 (t, J=4.6 Hz, 0.5H), 4.27-4.04 (m, 1H), 3.96 (t, J=4.1 Hz, 0.5H), 3.64 (t, J=4.1 Hz, 0.5H), 2.40-2.21 (m, 0.5H), 2.17-1.99 (m, 0.5H), 1.88-1.32 (m, 4H), 1.27 (dd, J=12.3, 4.3 Hz, 0.5H), 1.12 (dd, J=12.2, 4.5 Hz, 0.5H).
Prepared analogous to Example 209 substituting 2-chloro-6-(trifluoromethyl)pyridine with 5-fluoro-2-iodopyridine and intermediate A-1 with A-21. MP=100.1° C. MS (ESI) mass calcd. for C20H20FN7O, 393.2; m/z found 394.2 [M+H]+. 1H NMR (DMSO-D6): 8.24-8.15 (m, 1H), 8.12 (s, 1.2H) 8.11 (s, 0.8H), 8.00 (d, J=2.9 Hz, 0.6H), 7.80 (d, J=2.8 Hz, 0.4H), 7.63-7.51 (m, 1H), 7.43-7.26 (m, 1H), 6.94 (d, J=5.9 Hz, 0.6H), 6.87 (d, J=6.0 Hz, 0.4H), 6.55 (dd, J=9.1, 3.6 Hz, 0.6H), 6.45 (dd, J=9.1, 3.7 Hz, 0.4H), 4.81 (t, J=4.2 Hz, 0.6H), 4.52 (t, J=4.6 Hz, 0.4H), 4.19-3.99 (m, 1.4H), 3.73 (t, J=4.6 Hz, 0.6H), 2.60 (s, 1.2H), 2.58 (s, 1.8H), 2.35-2.20 (m, 0.6H), 2.19-2.05 (m, 0.4H), 1.96-1.38 (m, 4H), 1.27 (dd, J=12.5, 4.2 Hz, 0.6H), 1.15 (dd, J=12.2, 4.8 Hz, 0.4H).
Prepared analogous to Example 209 substituting 2-chloro-6-(trifluoromethyl)pyridine with 5-fluoro-2-iodopyridine and intermediate A-1 with 3-fluoro-2-methoxybenzoic acid. MS (ESI) mass calcd. for C19H19F2N3O2, 359.1; m/z found 360.2 [M+H]+. MP=134.7° C. 1H NMR (DMSO-D6): 8.00 (d, J=2.9 Hz, 0.5H), 7.80 (d, J=2.9 Hz, 0.5H), 7.45-7.26 (m, 2H), 7.24-7.06 (m, 2H), 6.96 (d, J=6.0 Hz, 0.5H), 6.89 (d, J=5.8 Hz, 0.5H), 6.56 (dd, J=9.1, 3.6 Hz, 0.5H), 6.48 (dd, J=9.2, 3.6 Hz, 0.5H), 4.83 (t, J=4.3 Hz, 0.5H), 4.56 (t, J=4.7 Hz, 0.5H), 4.18-3.98 (m, 1H), 3.95-3.81 (m, 3.5H), 3.64 (t, J=4.6 Hz, 0.5H), 2.35-2.14 (m, 1H), 1.96-1.43 (m, 4H), 1.30-1.13 (m, 1H).
Step A: (1S,2R,4R)—N-(5-(trifluoromethyl)pyrazin-2-yl)-7-azabicyclo[2.2.1]heptan-2-amine hydrochloride. To the intermediate of Example 181 Step A (100 mg, 0.3 mmol) in DCM (3 mL) was added 4M HCl in dioxane (0.8 mL). The reaction was allowed to proceed overnight then concentrated neutralized with 5% Na2CO3 (aq) and extracted with DCM (2×). The combined organics were dried (Na2SO4) to give the title compound of step A that was used without further purification.
Step B: (3-fluoro-2-(pyrimidin-2-yl)phenyl)((1S,2R,4R)-2-((5-(trifluoromethyl)pyrazin-2-yl)amino)-7-azabicyclo[2.2.1]heptan-7-yl)methanone. To the title compound of step A (1.44 g, 5.6 mmol) in DCM (56 mL) was added DIPEA (1.25 mL, 7.3 mmol) and intermediate A-2 (1.43 g, 6.1 mmol). Then T3P (50% solution in DMF, 10 mL, 17 mmol) was added dropwise and the reaction heated at 45° C. for 16 h. After allowing to cool to rt, DCM was added and the mixture washed with H2O then saturated NaHCO3 (aq). The combined aq layers were extracted with DCM. The combined organic layers were dried (Na2SO4). Purification via silica gel chromatography (10-100% EtOAc in hexanes) gave the title compound (2 g, 78%). MS (ESI) mass calcd. for C22H18F4N6O, 458.2; m/z found 459.1 [M+H]+. 1H NMR (CDCl3) 8.91-8.73 (m, 2H), 8.35-8.22 (m, 1H), 8.19 (s, 1H), 7.66 (s, 1H), 7.44-7.13 (m, 4H), 4.79-4.68 (m, 1H), 4.46-4.35 (m, 1H), 4.12-4.03 (m, 1H), 2.22-2.00 (m, 2H), 1.99-1.84 (m, 1H), 1.79-1.45 (m, 3H).
Prepared analogous to Example 181 substituting intermediate A-1 with 2-ethoxy-1-naphthoic acid. MS (ESI) mass calcd. for C24H23F3N4O2, 456.2; m/z found 457.2 [M+H]+. 1H NMR (CDCl3): 8.39-8.31 (m, 0.3H), 8.18 (s, 0.5H), 8.08-7.98 (m, 0.3H), 7.96-7.67 (m, 3.6H), 7.57-7.32 (m, 2H), 7.31-7.16 (m, 1.3H), 7.10-7.04 (m, 0.2H), 6.34 (d, J=9.1 Hz, 0.5H), 5.90-5.75 (m, 0.3H), 5.17-4.95 (m, 1H), 4.70 (d, J=7.1 Hz, 0.2H), 4.49-4.07 (m, 2.7H), 3.90 (td, J=7.4, 2.9 Hz, 0.2H), 3.77-3.65 (m, 0.3H), 3.62-3.56 (m, 0.2H), 3.39 (d, J=5.1 Hz, 0.4H), 2.30-1.94 (m, 2H), 1.81-1.47 (m, 5H), 1.47-1.33 (m, 2H).
Prepared analogous to Example 181 substituting intermediate A-1 with isoquinoline-4-carboxylic acid. MS (ESI) mass calcd. for C21H18F3N5O, 413.2; m/z found 414.2 [M+H]+. 1H NMR (CDCl3): 9.31 (s, 0.5H), 9.13 (s, 0.5H), 8.68-8.49 (m, 1H), 8.40-7.53 (m, 5.5H), 7.42 (s, 0.5H), 6.20 (s, 0.5H), 4.99 (s, 1.5H), 4.21 (s, 0.5H), 4.06-3.77 (m, 1.5H), 2.27-1.43 (m, 6H).
Prepared analogous to Example 181 substituting intermediate A-1 with intermediate A-5. MS (ESI) mass calcd. for C21H20F3N7O2, 459.2; m/z found 460.3 [M+H]+. 1H NMR (CDCl3): 8.31 (s, 0.3H), 8.18 (s, 0.7H), 7.91 (s, 1.5H), 7.87-7.77 (m, 1H), 7.54 (s, 0.8H), 7.48-7.39 (m, 0.7H), 7.35-7.28 (m, 1.7H), 6.97 (dd, J=8.5, 2.5 Hz, 0.3H), 6.87 (d, J=8.3 Hz, 0.7H), 6.29 (s, 0.3H), 4.85-4.79 (m, 0.7H), 4.75-4.70 (m, 0.3H), 4.40-4.22 (m, 1H), 4.09-4.03 (m, 0.3H), 3.99 (s, 0.7H), 3.94-3.83 (m, 3H), 2.19-1.41 (m, 6H).
Prepared analogous to Example 181 substituting intermediate A-1 with intermediate A-13. MS (ESI) mass calcd. for C21H20F3N7O2, 459.2; m/z found 460.3 [M+H]+. 1H NMR (CDCl3): 8.37-8.30 (m, 0.3H), 8.25-8.17 (m, 0.7H), 7.97-7.85 (m, 1.5H), 7.84-7.74 (m, 0.8H), 7.65-7.56 (m, 0.4H), 7.55-7.37 (m, 2.7H), 7.05-6.94 (m, 1H), 6.17-5.98 (m, 0.2H), 5.90-5.66 (m, 0.4H), 5.02-4.86 (m, 0.7H), 4.86-4.71 (m, 0.3H), 4.45-4.18 (m, 0.8H), 4.05 (s, 0.7H), 3.97-3.75 (m, 3.3H), 3.62-3.57 (m, 0.2H), 2.25-1.29 (m, 6H).
Prepared analogous to Example 181 substituting intermediate A-1 with intermediate A-7. MS (ESI) mass calcd. for C22H18F4N6O, 458.2; m/z found 459.3 [M+H]+. 1H NMR (CDCl3): 8.88-8.79 (m, 1.7H), 8.77-8.69 (m, 0.3H), 8.36-8.14 (m, 1.8H), 8.01 (dd, J=8.6, 5.4 Hz, 1H), 7.81 (s, 0.2H), 7.42-7.30-7.02 (m, 3.8H), 6.26 (d, J=7.8 Hz, 0.2H), 4.90-4.81 (m, 0.8H), 4.74 (d, J=5.2 Hz, 0.2H), 4.42 (s, 0.8H), 4.27 (s, 0.2H), 4.12-3.96 (m, 1H), 2.29-1.39 (m, 6H).
Prepared analogous to Example 181 substituting intermediate A-1 with 5-(4-fluorophenyl)-2-methylthiazole-4-carboxylic acid. MS (ESI) mass calcd. for C22H19F4N5OS, 477.2; m/z found 478.1 [M+H]+. 1H NMR (CDCl3): 8.32-8.20 (m, 1H), 7.95-7.84 (m, 1H), 7.56-7.40 (m, 2H), 7.15-7.04 (m, 2H), 6.97-6.77 (m, 0.8H), 6.01-5.88 (m, 0.2H), 4.85 (t, J=4.5 Hz, 1H), 4.21-3.90 (m, 2H), 2.80-2.56 (m, 3H), 2.19-1.95 (m, 1.7H), 1.93-1.31 (m, 4.3H).
Prepared analogous to Example 181 substituting intermediate A-1 with intermediate A-24. MS (ESI) mass calcd. for C21H20F3N7O, 443.2; m/z found 444.3 [M+H]+. 1H NMR (CDCl3): 8.29-8.23 (m, 0.2H), 8.21-8.15 (m, 0.8H), 7.95-7.88 (m, 1.6H), 7.84-7.74 (m, 1.3H), 7.62-7.39 (m, 1.2H), 7.37-7.19 (m, 2.7H), 5.81 (s, 0.2H), 4.79-4.65 (m, 0.8H), 4.61-4.51 (m, 0.2H), 4.38-3.90 (m, 2H), 2.19 (s, 3H), 2.14-1.42 (m, 6H).
Prepared analogous to Example 181 substituting intermediate A-1 with intermediate A-22. MS (ESI) mass calcd. for C23H22F3N5O2, 457.2; m/z found 458.3 [M+H]+. 1H NMR (CDCl3): 9.01-8.92 (m, 0.8H), 8.82 (s, 0.2H), 8.35 (s, 0.5H), 8.22 (s, 0.3H), 8.05 (s, 0.1H), 8.00-7.85 (m, 1.6H), 7.84-7.71 (m, 1H), 7.71-7.54 (m, 1.2H), 7.50-7.39 (m, 0.8H), 7.39-7.31 (m, 0.4H), 7.18 (s, 0.3H), 6.11 (s, 0.1H), 5.95 (d, J=8.8 Hz, 0.3H), 5.83 (d, J=8.0 Hz, 0.4H), 5.15-5.06 (m, 0.3H), 5.06-4.94 (m, 0.7H), 4.92-4.72 (m, 0.5H), 4.68-4.41 (m, 1.5H), 4.40-4.30 (m, 0.3H), 4.24-4.07 (m, 0.4H), 3.89-3.81 (m, 0.2H), 3.81-3.67 (m, 0.7H), 3.51 (d, J=5.1 Hz, 0.3H), 2.30-1.95 (m, 2.5H), 1.91-1.21 (m, 6.5H).
Prepared analogous to Example 181 substituting intermediate A-1 with intermediate A-3. MS (ESI) mass calcd. for C20H19F3N8O, 444.2; m/z found 445.2 [M+H]+. 1H NMR (CDCl3): 8.32 (s, 0.4H), 8.18 (s, 0.6H), 7.96 (s, 1.3H), 7.88 (d, J=4.6 Hz, 1.1H), 7.79 (d, J=7.7 Hz, 0.5H), 7.73-7.52 (m, 1.5H), 7.35-7.27 (m, 0.5H), 7.18 (s, 0.7H), 6.28 (s, 0.4H), 4.89-4.70 (m, 1H), 4.42-4.19 (m, 1H), 4.03-3.81 (m, 1H), 2.76-2.56 (m, 3H), 2.26-1.40 (m, 6H).
Prepared analogous to Example 181 substituting intermediate A-1 with intermediate A-4. MS (ESI) mass calcd. for C20H19F3N8O, 444.2; m/z found 445.2 [M+H]+. 1H NMR (CDCl3): 8.51-8.35 (m, 1.6H), 8.29 (s, 0.7H), 8.17 (s, 0.3H), 7.92-7.80 (m, 1H), 7.76-7.60 (m, 1.3H), 7.35-7.18 (m, 1.4H), 6.81-6.61 (m, 0.7H), 4.95-4.85 (m, 0.3H), 4.84-4.75 (m, 0.7H), 4.49-4.32 (m, 1H), 4.07 (t, J=4.4 Hz, 0.7H), 3.93 (s, 0.3H), 2.70-2.54 (m, 3H), 2.22 (dd, J=13.1, 8.0 Hz, 0.4H), 2.14-1.46 (m, 5.6H).
Prepared analogous to Example 181 substituting intermediate A-1 with intermediate A-15. MS (ESI) mass calcd. for C23H21F3N6O2, 470.2; m/z found 471.2 [M+H]+. 1H NMR (CDCl3): 8.89-8.69 (m, 2H), 8.38-8.12 (m, 2H), 7.81-7.74 (m, 0.1H), 7.70-7.62 (m, 0.1H), 7.49-7.28 (m, 3.8H), 6.91 (dd, J=8.4, 2.6 Hz, 0.9H), 6.48-6.39 (m, 0.1H), 4.85-4.77 (m, 0.9H), 4.73-4.67 (m, 0.1H), 4.48-4.34 (m, 0.9H), 4.24 (s, 0.1H), 4.09 (d, J=5.0 Hz, 1H), 3.94-3.79 (m, 3H), 2.18 (dd, J=13.0, 8.1 Hz, 1H), 2.13-1.37 (m, 5H).
Prepared analogous to Example 181 substituting intermediate A-1 with 1H-benzo[d]imidazole-2-carboxylic acid. MS (ESI) mass calcd. for C19H17F3N6O, 402.1; m/z found 403.2 [M+H]+. 1H NMR (CDCl3): 8.35-7.61 (m, 3.5H), 7.40-7.13 (m, 3.5H), 6.26-5.75 (m, 1H), 5.06-4.63 (m, 1.5H), 4.27-3.95 (m, 1.5H), 2.86-2.47 (m, 1H), 2.33-1.45 (m, 5H).
Prepared analogous to Example 181 substituting intermediate A-1 with 1-methyl-1H-benzo[d]imidazole-2-carboxylic acid. MS (ESI) mass calcd. for C20H19F3N6O, 416.2; m/z found 417.2 [M+H]+.
Prepared analogous to Example 181 substituting intermediate A-1 with intermediate A-16. MS (ESI) mass calcd. for C20H17F4N7O, 447.1; m/z found 448.3 [M+H]+. 1H NMR (CDCl3): 8.30 (s, 0.3H), 8.19 (s, 0.7H), 7.96-7.75 (m, 2.8H), 7.58-7.49 (m, 0.3H), 7.45-7.11 (m, 3.7H), 5.83 (s, 0.2H), 4.80-4.58 (m, 1H), 4.38-4.25 (m, 0.8H), 4.24-4.13 (m, 0.2H), 4.13-4.04 (m, 0.2H), 3.97 (d, J=4.9 Hz, 0.8H), 2.22-2.07 (m, 1H), 2.07-1.40 (m, 5H).
Prepared analogous to Example 181 substituting intermediate A-1 with intermediate A-23. MS (ESI) mass calcd. for C21H18F5N7O2, 495.1; m/z found 496.3 [M+H]+. 1H NMR (CDCl3): 8.32 (s, 0.3H), 8.19 (s, 0.7H), 7.98-7.81 (m, 2.4H), 7.77 (d, J=2.3 Hz, 0.4H), 7.61 (d, J=2.4 Hz, 0.7H), 7.58-7.45 (m, 1H), 7.39 (d, J=8.4 Hz, 0.7H), 7.21 (dd, J=8.4, 2.4 Hz, 0.5H), 7.18-7.00 (m, 0.9H), 6.59 (td, J=72.6, 31.4 Hz, 1H), 6.33-6.16 (m, 0.4H), 4.92-4.70 (m, 1H), 4.43-4.19 (m, 1H), 4.09-3.83 (m, 1H), 2.30-1.44 (m, 6H).
Prepared analogous to Example 181 substituting intermediate A-1 with intermediate A-17. MS (ESI) mass calcd. for C21H18F4N6O2, 462.1; m/z found 463.3 [M+H]. 1H NMR (CDCl3): 8.31 (s, 0.3H), 8.18 (s, 0.7H), 8.09 (s, 0.3H), 7.75-7.68 (m, 0.7H), 7.63 (td, J=8.0, 5.0 Hz, 0.3H), 7.49 (td, J=7.9, 5.1 Hz, 0.7H), 7.44-7.13 (m, 2.6H), 5.79 (d, J=8.0 Hz, 0.4H), 4.88-4.67 (m, 1H), 4.40-4.22 (m, 1H), 4.10-3.88 (m, 1H), 2.52 (s, 3H), 2.28-1.54 (m, 6H).
Prepared analogous to Example 181 substituting intermediate A-1 with intermediate A-18. MS (ESI) mass calcd. for C21H20F3N7O2, 459.2; m/z found 460.3 [M+H]+. 1H NMR (CDCl3): 8.32 (s, 0.3H), 8.19 (s, 0.7H), 7.96-7.76 (m, 2.5H), 7.74-7.63 (m, 1H), 7.56 (s, 1H), 7.07 (dd, J=8.9, 2.9 Hz, 0.4H), 7.03-6.92 (m, 1H), 6.87 (d, J=2.9 Hz, 0.8H), 6.17-6.05 (m, 0.3H), 4.89-4.70 (m, 1H), 4.43-4.19 (m, 1H), 4.10-3.94 (m, 1H), 3.92-3.75 (m, 3H), 2.25-1.43 (m, 6H).
Prepared analogous to Example 181 substituting intermediate A-1 with intermediate A-10. MS (ESI) mass calcd. for C20H17F4N7O, 447.2; m/z found 448.3 [M+H]+. 1H NMR (CDCl3): 8.32 (s, 0.3H), 8.20 (s, 0.7H), 8.02-7.87 (m, 1.5H), 7.88-7.71 (m, 1.5H), 7.54 (s, 0.7H), 7.38-7.00 (m, 3H), 6.32-6.08 (m, 0.3H), 4.92-4.68 (m, 1H), 4.46-4.20 (m, 1H), 4.12-3.88 (m, 1H), 2.28-1.39 (m, 6H).
Prepared analogous to Example 181 substituting intermediate A-1 with intermediate A-12. MS (ESI) mass calcd. for C20H17F4N7O, 447.2; m/z found 448.3 [M+H]+. 1H NMR (CDCl3): 8.33 (s, 0.3H), 8.20 (s, 0.7H), 8.01-7.79 (m, 2.4H), 7.73 (dd, J=9.4, 2.6 Hz, 0.4H), 7.63-7.44 (m, 1.7H), 7.38 (dd, J=8.5, 5.7 Hz, 0.7H), 7.21-6.94 (m, 1.4H), 6.20 (d, J=8.5 Hz, 0.4H), 4.91-4.73 (m, 1H), 4.46-4.17 (m, 1H), 4.09-3.85 (m, 1H), 2.25-1.44 (m, 6H).
Prepared analogous to Example 181 substituting intermediate A-1 with intermediate A-11. MS (ESI) mass calcd. for C20H17F4N7O, 447.2; m/z found 448.3 [M+H]+. 1H NMR (CDCl3): 8.41-8.29 (m, 0.3H), 8.20 (s, 0.7H), 8.01-7.60 (m, 3H), 7.60-7.11 (m, 3.2H), 7.03-6.89 (m, 0.2H), 6.20-6.06 (m, 0.2H), 5.45-5.34 (m, 0.2H), 5.16-5.04 (m, 0.2H), 4.99-4.75 (m, 1H), 4.49-4.16 (m, 1H), 4.13-4.00 (m, 0.3H), 3.88 (d, J=5.2 Hz, 0.5H), 3.69 (d, J=5.1 Hz, 0.2H), 2.33-1.36 (m, 6H).
Prepared analogous to Example 181 substituting 2 intermediate A-1 with 6-methylimidazo[2,1-b]thiazole-5-carboxylic acid. MS (ESI) mass calcd. for C18H17F3N6OS, 422.2; m/z found 423.2 [M+H]+. 1H NMR (CDCl3): 8.26 (s, 1H), 7.91-7.75 (m, 2H), 6.96-6.80 (m, 1H), 5.91 (s, 1H), 4.58 (d, J=5.0 Hz, 1H), 4.42 (t, J=4.8 Hz, 1H), 4.21-4.05 (m, 1H), 2.49 (s, 3H), 2.25 (dd, J=13.2, 7.5 Hz, 1H), 2.10-1.88 (m, 2H), 1.73-1.54 (m, 3H).
Step A: (3-fluoro-2-iodophenyl)((1S,2R,4R)-2-((5-(trifluoromethyl)pyrazin-2-yl)amino)-7-azabicyclo[2.2.1]heptan-7-yl)methanone. Prepared analogous to Example 238 substituting intermediate A-2 with 3-fluoro-2-iodobenzoic acid. MS (ESI) mass calcd. for C18H15F4IN4O, 506.0; m/z found 507.2 [M+H]+. 1H NMR (CDCl3): 8.27-8.14 (m, 1H), 8.10-7.81 (m, 1H), 7.48-7.32 (m, 0.5H), 7.23-6.83 (m, 2.5H), 6.66-5.98 (m, 1H), 4.94-4.69 (m, 1H), 4.31-4.14 (m, 0.5H), 4.08-3.90 (m, 0.5H), 3.90-3.75 (m, 0.5H), 3.72-3.44 (m, 0.5H), 2.27-1.41 (m, 6H).
Step B: (3-fluoro-2-(oxazol-2-yl)phenyl)((1S,2R,4R)-2-((5-(trifluoromethyl)pyrazin-2-yl)amino)-7-azabicyclo[2.2.1]heptan-7-yl)methanone. The title compound of step A (35 mg) and 2-(tributylstannyl)oxazole (17 μL) were dissolved in DME (1 mL). The solution was degassed with N2 as CuI (1 mg) and Pd(PPh3)4 (4 mg) was added. The reaction was heated at 120° C. for 3 h. Additional CuI and Pd(PPh3)4 and the reaction purged with N2. Heating was continued overnight. The reaction was cooled to rt, filtered through a pad of celite and purified via prep HPLC to give the title compound (12 mg, 39%). MS (ESI) mass calcd. for C21H17F4N5O2, 447.1; m/z found 448.3 [M+H]+. 1H NMR (CDCl3): 8.34 (s, 1H), 8.16 (s, 1H), 7.98-7.78 (m, 1H), 7.69 (s, 0.8H), 7.60-7.06 (m, 4H), 6.80-6.61 (m, 0.2H), 4.92-4.66 (m, 1H), 4.46-4.23 (m, 1H), 4.06-3.80 (m, 1H), 2.36-1.51 (m, 6H).
Prepared analogous to Example 260 substituting 2-(tributylstannyl)oxazole with 3-(tributylstannyl)pyridazine. MS (ESI) mass calcd. for C22H18F4N6O, 458.1; m/z found 459.1 [M+H]+. 1H NMR (500 MHz, Chloroform-d) 9.25-9.14 (m, 1H), 8.50 (s, 0.5H), 8.28 (s, 0.8H), 8.17 (s, 0.5H), 7.97-7.80 (m, 1.5H), 7.72-7.59 (m, 1H), 7.55-7.41 (m, 1H), 7.34-7.18 (m, 2.2H), 6.96 (d, J=8.1 Hz, 0.5H), 4.79-4.72 (m, 0.55H), 4.71-4.64 (m, 0.45H), 4.53-4.43 (m, 0.6H), 4.38-4.28 (m, 0.45H), 4.18 (s, 0.4H), 4.13-4.05 (m, 0.55H), 2.30-1.47 (m, 6H).
Step A: (2-iodo-3-methylphenyl)((1S,2R,4R)-2-((5-(trifluoromethyl)pyrazin-2-yl)amino)-7-azabicyclo[2.2.1]heptan-7-yl)methanone. Prepared analogous to Example 238 substituting intermediate A-2 with 2-iodo-3-methylbenzoic acid. MS (ESI) mass calcd. for C19H18F3IN4O, 502.0; m/z found 503.0 [M+H]+. 1H NMR (400 MHz, Chloroform-d) 8.26-8.03 (m, 1.4H), 7.88-6.60 (m, 4.6H), 4.93-4.58 (m, 1H), 4.32-4.15 (m, 0.4H), 3.92 (s, 0.4H), 3.86-3.76 (m, 0.6H), 3.57 (s, 0.6H), 2.51 (s, 1.4H), 2.40 (s, 1.6H), 2.21-0.66 (m, 6H).
Step B: (3-methyl-2-(pyridazin-3-yl)phenyl)((1S,2R,4R)-2-((5-(trifluoromethyl)pyrazin-2-yl)amino)-7-azabicyclo[2.2.1]heptan-7-yl)methanone. Prepared analogous to Example 260 Step B substituting 2-(tributylstannyl)oxazole with 3-(tributylstannyl)pyridazine. MS (ESI) mass calcd. for C23H21F3N6O, 454.2; m/z found 455.2 [M+H]+. 1H NMR (400 MHz, Chloroform-d) 9.22 (dd, J=4.9, 1.7 Hz, 0.25H), 9.19 (dd, J=4.8, 1.8 Hz, 0.75H), 8.57 (s, 0.75H), 8.27 (s, 0.25H), 8.21 (s, 0.25H), 8.16 (s, 0.75H), 7.97 (s, 0.75H), 7.72-7.56 (m, 2H), 7.44-7.27 (m, 2.25H), 7.25-7.19 (m, 0.75H), 6.40 (d, J=8.0 Hz, 0.25H), 4.68-4.62 (m, 0.75H), 4.59-4.54 (m, 0.25H), 4.39 (ddd, J=9.3, 8.1, 3.9 Hz, 0.75H), 4.28-4.15 (m, 0.5H), 4.08-4.03 (m, 0.75H), 2.32 (s, 0.75H), 2.21 (s, 2.25H), 2.18-1.42 (m, 6H).
Prepared analogous to Example 260 substituting 2-(tributylstannyl)oxazole with 4-(tributylstannyl)pyridazine. MS (ESI) mass calcd. for C22H18F4N6O, 458.1; m/z found 459.2 [M+H]+. 1H NMR (400 MHz, Chloroform-d) 9.38-9.20 (m, 2H), 8.28 (s, 0.6H), 8.19 (s, 0.4H), 8.00 (s, 0.6H), 7.94 (s, 0.4H), 7.71-7.63 (m, 0.6H), 7.62-7.50 (m, 1H), 7.40-7.29 (m, 1H), 7.24-7.08 (m, 1.4H), 5.24 (s, 0.4H), 4.80 (s, 0.6H), 4.67 (s, 0.4H), 4.61 (d, J=5.3 Hz, 0.6H), 4.02-3.92 (m, 0.6H), 3.85-3.75 (m, 0.4H), 3.70-3.59 (m, 1H), 1.90-2.07 (m, 1H), 1.84-0.79 (m, 5H).
Prepared analogous to Example 260 substituting 2-(tributylstannyl)oxazole with 2-(tributylstannyl)pyrazine. MS (ESI) mass calcd. for C22H18F4N6O, 458.1; m/z found 459.2 [M+H]+. 1H NMR (400 MHz, Chloroform-d) 8.99-8.94 (m, 1H), 8.69 (d, J=2.6 Hz, 1H), 8.58-8.51 (m, 1H), 8.19 (s, 1H), 8.03 (s, 1H), 7.57 (s, 1H), 7.44-7.37 (m, 1H), 7.25-7.20 (m, 2H), 4.80-4.74 (m, 1H), 4.40 (td, J=8.6, 3.6 Hz, 1H), 4.05 (d, J=5.1 Hz, 1H), 2.24-2.16 (m, 1H), 1.78-1.67 (m, 2H), 1.62-1.51 (m, 2H), 1.41-1.29 (m, 1H).
Prepared analogous to Example 263 substituting 3-(tributylstannyl)pyridazine with 2-(tributylstannyl)oxazole. MS (ESI) mass calcd. for C22H20F3N5O2, 443.2; m/z found 444.2 [M+H]+. 1H NMR (500 MHz, Chloroform-d) 8.57 (s, 1H), 8.14 (s, 1H), 7.88 (d, J=0.9 Hz, 1H), 7.79 (d, J=1.4 Hz, 1H), 7.33-7.23 (m, 3H), 7.20-7.14 (m, 1H), 4.82-4.75 (m, 1H), 4.29 (td, J=8.5, 3.7 Hz, 1H), 3.94 (d, J=4.9 Hz, 1H), 2.28 (s, 3H), 2.16-1.45 (m, 6H).
Prepared analogous to Example 238 substituting intermediate A-2 with intermediate A-25. MS (ESI) mass calcd. for: C22H18F4N6O, 458.1; m/z found 459.2 [M+H]+. 1H NMR (500 MHz, Chloroform-d) 8.89-8.81 (m, 1.7H), 8.80-8.73 (m, 0.3H), 8.33-7.87 (m, 2H), 7.80 (s, 0.2H), 7.74-7.66 (m, 0.8H), 7.56-7.31 (m, 2.8H), 7.21-7.14 (m, 0.2H), 7.14-7.06 (m, 0.8H), 6.58 (s, 0.2H), 4.88-4.78 (m, 0.8H), 4.72 (d, J=5.2 Hz, 0.2H), 4.40 (s, 0.8H), 4.26 (s, 0.2H), 4.10-3.97 (m, 1H), 2.27-1.39 (m, 6H).
Prepared analogous to Example 260 substituting 2-(tributylstannyl)oxazole with 4-(tributylstannyl)pyridine. MS (ESI) mass calcd. for: C23H19F4N5O, 457.2; m/z found 458.2 [M+H]+. 1H NMR (500 MHz, Chloroform-d) 8.78-8.61 (m, 2H), 8.28 (s, 0.6H), 8.15 (s, 0.4H), 7.87 (s, 1H), 7.72-7.28 (m, 4.2H), 7.23-7.02 (m, 1.4H), 5.49 (s, 0.4H), 4.67-4.60 (m, 0.4H), 4.56 (d, J=5.3 Hz, 0.6H), 3.99-3.89 (m, 0.6H), 3.82-3.72 (m, 0.4H), 3.65-3.58 (m, 0.6H), 3.56 (d, J=5.4 Hz, 0.4H), 2.00-0.80 (m, 6H).
Step A: (1S,2R,4R)-tert-butyl 2-((5-(trifluoromethyl)pyrimidin-2-yl)amino)-7-azabicyclo[2.2.1]heptane-7-carboxylate. To intermediate B-5 (250 mg, 1.2 mmol) and K2CO3 (244 mg, 1.8 mmol) in DMF (1.7 mL) was added 2-chloro-5-(trifluoromethyl)pyrimidine (258 mg, 1.4 mmol). After heating at 70° C. for 17 h, the mixture was cooled to rt, diluted with EtOAc and H2O. The aqueous layer was extracted with EtOAc (3×). The combined organics were washed with 4% MgSO4 (aq) and dried (MgSO4). Purification via silica gel chromatography (0-30% EtOAc in hexanes) gave the title compound (356 mg, 84%). MS (ESI) mass calcd. for C16H21F3N4O2, 358.2; m/z found 359.2 [M+H]+. 1H NMR (500 MHz, Chloroform-d) 8.58-8.37 (m, 2H), 5.70 (s, 1H), 4.30 (s, 1H), 1.78-1.68 (m, 1H), 4.25-4.17 (m, 1H), 1.89-1.79 (m, 1H), 4.12-4.03 (m, 1H), 2.03 (dd, J=13.1, 7.8 Hz, 1H), 1.63-1.37 (m, 12H).
Step B: (1S,2R,4R)—N-(5-(trifluoromethyl)pyrimidin-2-yl)-7-azabicyclo[2.2.1]heptan-2-amine. To the title compound of step A (355 mg, 1 mmol) in DCM (9.7 mL) was added 4M HCl in dioxane (1.2 mL). The reaction was allowed to proceed overnight then concentrated and neutralized with 5% Na2CO3 (aq) and extracted with DCM (2×). The combined organics were dried (Na2SO4) to give the title compound of step B that was used without further purification.
Step C: (3-fluoro-2-(2H-1,2,3-triazol-2-yl)phenyl)((1S,2R,4R)-2-((5-(trifluoromethyl)pyrimidin-2-yl)amino)-7-azabicyclo[2.2.1]heptan-7-yl)methanone. To the title compound of step B (25 mg, 0.1 mmol) in DCM (1 mL) was added DIPEA (22 μL, 0.13 mmol) and intermediate A-16 (22 mg, 0.1 mmol). Then T3P (50% solution in DMF, 0.17 mL, 0.29 mmol) was added dropwise and the reaction heated at 45° C. for 12 h. After allowing to cool to rt, DCM was added and the mixture washed with H2O then saturated NaHCO3 (aq). The combined aq layers were extracted with DCM. The combined organic layers were dried (Na2SO4). Purification was performed using Agilent prep method X to give the title compound (35 mg, 80%). MS (ESI) mass calcd. for: C20H17F4N7O, 447.1; m/z found 448.2 [M+H]+. 1H NMR (400 MHz, Chloroform-d) 8.50 (s, 0.9H), 8.41 (s, 1.1H), 8.09 (s, 0.9H), 7.95 (s, 1.1H), 7.56-7.47 (m, 0.5H), 7.44-7.32 (m, 1H), 7.33-7.23 (m, 1.5H), 7.20-7.14 (m, 0.5H), 6.18 (d, J=8.6 Hz, 0.5H), 4.83-4.74 (m, 0.5H), 4.67 (d, J=5.2 Hz, 0.5H), 4.34-4.19 (m, 1H), 4.11-4.04 (m, 0.5H), 3.99 (d, J=4.8 Hz, 0.5H), 2.21-1.44 (m, 6H).
Step A: (1S,2R,4R)-tert-butyl 2-((3-bromoimidazo[1,2-a]pyrazin-8-yl)amino)-7-azabicyclo[2.2.1]heptane-7-carboxylate. Prepared analogous to Example 269 step A substituting 2-chloro-5-(trifluoromethyl)pyrimidine with 3-bromo-8-chloroimidazo[1,2-a]pyrazine. MS (ESI) mass calcd. for: C17H22BrN5O2, 407.1; m/z found 408.1 [M+H]+. 1H NMR (500 MHz, Chloroform-d) 7.45 (s, 1H), 7.43 (d, J=4.7 Hz, 1H), 7.40 (d, J=4.7 Hz, 1H), 6.15 (s, 1H), 4.37-4.27 (m, 2H), 4.27-4.21 (m, 1H), 2.08 (dd, J=13.0, 7.8 Hz, 1H), 1.90-1.33 (m, 14H).
Step B: N-((1S,2R,4R)-7-azabicyclo[2.2.1]heptan-2-yl)-3-bromoimidazo[1,2-a]pyrazin-8-amine. Prepared analogous to Example 269 step B using title compound of step A.
Step C: ((1S,2R,4R)-2-((3-bromoimidazo[1,2-a]pyrazin-8-yl)amino)-7-azabicyclo[2.2.1]heptan-7-yl)(3-fluoro-2-(pyrimidin-2-yl)phenyl)methanone. Prepared analogous to Example 269 step C substituting intermediate A-16 with intermediate A-2. MS (ESI) mass calcd. for: C23H19BrFN7O, 507.1; m/z found 508.1 [M+H]+. 1H NMR (400 MHz, Chloroform-d) 8.92 (d, J=4.9 Hz, 0.7H), 8.88 (d, J=4.9 Hz, 1.3H), 7.53-7.03 (m, 7.6H), 5.82 (d, J=7.6 Hz, 0.4H), 4.81-4.75 (m, 0.6H), 4.71 (d, J=5.1 Hz, 0.4H), 4.47-4.37 (m, 0.6H), 4.31-4.22 (m, 0.4H), 4.13-4.07 (m, 0.6H), 4.06-3.99 (m, 0.4H), 2.26-1.36 (m, 6H).
Prepared analogous to Example 269 substituting intermediate A-16 with intermediate A-2. MS (ESI) mass calcd. for: C22H18F4N6O, 458.1; m/z found 459.2 [M+H]+. 1H NMR (400 MHz, Chloroform-d) 8.90 (d, J=5.0 Hz, 2H), 8.49 (s, 1H), 8.44-8.31 (m, 2H), 7.43-7.32 (m, 2H), 7.26-7.14 (m, 2H), 4.80-4.75 (m, 1H), 4.45-4.37 (m, 1H), 4.09 (d, J=5.0 Hz, 1H), 2.22 (dd, J=12.9, 8.0 Hz, 1H), 2.11-1.51 (m, 5H).
Prepared analogous to Example 269 substituting intermediate A-16 with intermediate A-24. MS (ESI) mass calcd. for: C21H20F3N7O, 443.2; m/z found 444.2 [M+H]. 1H NMR (400 MHz, Chloroform-d) 8.49 (s, 0.8H), 8.41 (s, 1.2H), 8.02 (s, 0.8H), 7.91 (s, 1.2H), 7.47-7.39 (m, 1H), 7.38-7.28 (m, 2H), 7.23-7.16 (m, 0.6H), 5.98 (d, J=8.4 Hz, 0.4H), 4.77-4.68 (m, 0.6H), 4.60 (d, J=5.1 Hz, 0.4H), 4.29-4.17 (m, 1H), 4.11-4.03 (m, 0.4H), 3.99 (d, J=5.0 Hz, 0.6H), 2.27 (s, 1.3H), 2.24 (s, 1.7H), 2.18-1.41 (m, 6H).
Prepared analogous to Example 238 substituting intermediate A-2 with intermediate A-26. MS (ESI) mass calcd. for: C23H21F3N6O, 454.2; m/z found 455.1 [M+H]+. 1H NMR (400 MHz, Chloroform-d) 8.85 (d, J=5.0 Hz, 2H), 8.50 (d, J=9.2 Hz, 1H), 8.17 (s, 1H), 7.66 (d, J=1.3 Hz, 1H), 7.37 (t, J=5.0 Hz, 1H), 7.31-7.18 (m, 3H), 4.73-4.67 (m, 1H), 4.35 (td, J=8.7, 3.7 Hz, 1H), 4.14-4.09 (m, 1H), 2.29 (s, 3H), 2.19-1.45 (m, 6H).
Step A: (1S,2R,4R)-tert-butyl 2-((3-(trifluoromethyl)-[1,2,4]triazolo[4,3-a]pyrazin-8-yl)amino)-7-azabicyclo[2.2.1]heptane-7-carboxylate. Prepared analogous to Example 269 step A substituting 2-chloro-5-(trifluoromethyl)pyrimidine with 8-chloro-3-(trifluoromethyl)-[1,2,4]triazolo[4,3-a]pyrazine. MS (ESI) mass calcd. for: C17H21F3N6O2, 398.2; m/z found 399.2 [M+H]+. 1H NMR (500 MHz, Chloroform-d) 7.51-7.48 (m, 1H), 7.48-7.45 (m, 1H), 6.58 (d, J=7.6 Hz, 1H), 4.41-4.25 (m, 3H), 1.94-1.83 (m, 1H), 2.12 (dd, J=13.1, 7.8 Hz, 1H), 1.83-1.70 (m, 2H), 1.59-1.52 (m, 1H), 1.50-1.41 (m, 10H).
Step B: N-((1S,2R,4R)-7-azabicyclo[2.2.1]heptan-2-yl)-3-(trifluoromethyl)-[1,2,4]triazolo[4,3-a]pyrazin-8-amine. Prepared analogous to Example 269 step B using title compound of step A.
Step C: (3-fluoro-2-(pyrimidin-2-yl)phenyl)((1S,2R,4R)-2-((3-(trifluoromethyl)-[1,2,4]triazolo[4,3-a]pyrazin-8-yl)amino)-7-azabicyclo[2.2.1]heptan-7-yl)methanone. Prepared analogous to Example 269 step C substituting intermediate A-16 with intermediate A-2. MS (ESI) mass calcd. for: C23H18F4N8O, 498.2; m/z found 499.2 [M+H]+. 1H NMR (400 MHz, Chloroform-d) 8.99 (d, J=4.9 Hz, 0.6H), 8.95 (d, J=5.0 Hz, 1.4H), 8.72 (s, 0.7H), 7.55-7.28 (m, 4.6H), 7.21-7.10 (m, 1.4H), 6.18 (d, J=7.5 Hz, 0.3H), 4.88-4.80 (m, 0.7H), 4.75 (d, J=5.1 Hz, 0.3H), 4.67 (s, 0.7H), 4.33 (s, 0.3H), 4.16-4.06 (m, 1H), 2.27 (dd, J=12.7, 8.2 Hz, 0.7H), 2.11 (dd, J=13.0, 8.1 Hz, 0.3H), 2.04-1.41 (m, 5H).
Step A: (1S,2R,4R)-tert-butyl 2-((5-(methoxycarbonyl)pyrazin-2-yl)amino)-7-azabicyclo[2.2.1]heptane-7-carboxylate. Prepared analogous to Example 269 step A substituting 2-chloro-5-(trifluoromethyl)pyrimidine with methyl 5-chloropyrazine-2-carboxylate. MS (ESI) mass calcd. for: C17H24N4O4, 348.2; m/z found 349.2 [M+H]+. 1H NMR (400 MHz, Chloroform-d) 8.77 (d, J=1.4 Hz, 1H), 7.88 (d, J=1.4 Hz, 1H), 5.55 (s, 1H), 4.34-4.27 (m, 1H), 4.25-4.18 (m, 1H), 4.12-4.06 (m, 1H), 3.95 (s, 3H), 2.12-2.05 (m, 1H), 1.92-1.72 (m, 2H), 1.63-1.38 (m, 12H).
Step B: methyl 5-((1S,2R,4R)-7-azabicyclo[2.2.1]heptan-2-ylamino)pyrazine-2-carboxylate. Prepared analogous to Example 269 step B using title compound of step A.
Step C: methyl 5-(((1S,2R,4R)-7-(3-fluoro-2-(pyrimidin-2-yl)benzoyl)-7-azabicyclo[2.2.1]heptan-2-yl)amino)pyrazine-2-carboxylate. Prepared analogous to Example 269 step C substituting intermediate A-16 with intermediate A-2. MS (ESI) mass calcd. for: C23H21FN6O3, 448.2; m/z found 449.2 [M+H]+. 1H NMR (500 MHz, Chloroform-d) 8.87 (d, J=4.9 Hz, 2H), 8.65 (s, 1H), 8.37 (d, J=9.4 Hz, 1H), 7.67 (s, 1H), 7.42-7.34 (m, 2H), 7.24-7.17 (m, 2H), 4.77-4.70 (m, 1H), 4.48-4.39 (m, 1H), 4.07 (d, J=5.1 Hz, 1H), 3.90 (s, 3H), 2.18 (dd, J=13.0, 8.1 Hz, 1H), 2.11-2.00 (m, 1H), 1.97-1.62 (m, 3H), 1.58-1.48 (m, 1H).
Prepared analogous to Example 269 substituting intermediate A-16 with 2-iodo-3-methylbenzoic acid. MS (ESI) mass calcd. for: C19H18F3IN4O, 502.0; m/z found 503.0 [M+H]+. 1H NMR (400 MHz, Chloroform-d) 8.59-8.30 (m, 2H), 7.32-7.22 (m, 1.4H), 7.19-6.96 (m, 1H), 6.93-6.83 (m, 0.6H), 6.02 (s, 0.5H), 5.54 (s, 0.5H), 5.01-4.91 (m, 0.5H), 4.84 (d, J=5.1 Hz, 0.5H), 4.28 (s, 0.5H), 4.02 (s, 0.5H), 3.84-3.66 (m, 1H), 2.50 (s, 1.5H), 2.43 (s, 1.5H), 2.24-1.39 (m, 6H).
Prepared analogous to Example 269 substituting intermediate A-16 with 3-fluoro-2-iodobenzoic acid. MS (ESI) mass calcd. for: C18H15F4IN4O, 506.0; m/z found 507.0 [M+H]+. 1H NMR (400 MHz, Chloroform-d) 8.57-8.33 (m, 2H), 7.42-7.32 (m, 0.5H), 7.16-7.02 (m, 1.5H), 6.99-6.88 (m, 1H), 5.99 (d, J=7.6 Hz, 0.5H), 5.55 (s, 0.5H), 5.00-4.91 (m, 0.5H), 4.85 (d, J=5.3 Hz, 0.5H), 4.32-4.24 (m, 0.5H), 4.05-3.97 (m, 0.5H), 3.81-3.71 (m, 1H), 2.22-1.93 (m, 2H), 1.91-1.43 (m, 4H).
Step A: (1S,2R,4R)-tert-butyl 2-((5-methylpyrazin-2-yl)amino)-7-azabicyclo[2.2.1]heptane-7-carboxylate. Prepared analogous to Example 279 step A substituting 2-chloro-5-(trifluoromethyl)pyridine with 2-chloro-5-methylpyrazine. MS (ESI) mass calcd. for: C16H24N4O2, 304.2; m/z found 305.2 [M+H]+. 1H NMR (400 MHz, Chloroform-d) 7.86 (s, 1H), 7.78 (d, J=1.5 Hz, 1H), 4.71 (s, 1H), 4.28 (s, 1H), 4.19 (d, J=4.9 Hz, 1H), 3.95-3.85 (m, 1H), 2.38 (s, 3H), 2.11-1.96 (m, 1H), 1.89-1.66 (m, 2H), 1.58-1.33 (m, 12H).
Step B: (1S,2R,4R)—N-(5-methylpyrazin-2-yl)-7-azabicyclo[2.2.1]heptan-2-amine. Prepared analogous to Example 279 step B using title compound of step A.
Step C: (3-fluoro-2-(pyrimidin-2-yl)phenyl)((1S,2R,4R)-2-((5-methylpyrazin-2-yl)amino)-7-azabicyclo[2.2.1]heptan-7-yl)methanone. Prepared analogous to Example 279 step C. MS (ESI) mass calcd. for: C22H21FN6O, 404.2; m/z found 405.2 [M+H]+. 1H NMR (500 MHz, Chloroform-d) 8.87 (d, J=5.0 Hz, 2H), 7.74 (s, 1H), 7.60 (s, 1H), 7.41-7.30 (m, 3H), 7.23-7.12 (m, 2H), 4.76-4.68 (m, 1H), 4.30-4.17 (m, 1H), 4.08-4.01 (m, 1H), 2.30 (s, 3H), 2.15 (dd, J=12.9, 8.1 Hz, 1H), 2.07-1.95 (m, 1H), 1.95-1.84 (m, 1H), 1.74-1.46 (m, 3H).
Step A: (1S,2R,4R)-tert-butyl 2-((5-(trifluoromethyl)pyridin-2-yl)amino)-7-azabicyclo[2.2.1]heptane-7-carboxylate. In a microwave vial, toluene (8.3 mL) was degassed with N2 for 10 minutes then Pd(OAc)2 (22 mg, 0.03 mmol) and racemic BINAP (21 mg, 0.03 mmol) were added and the solution was degassed with N2 for 5 minutes. Then intermediate B-5, 2-chloro-5-(trifluoromethyl)pyridine (150 mg, 0.83 mmol) and sodium tert-butoxide (115 mg, 1.16 mmol) were added and the reaction mixture was stirred at 70° C. After 15 h the reaction mixture was filtered through a pad of celite and solvent was evaporated. Purification via silica gel chromatography (0-40% EtOAc in hexanes) gave the title compound of step A (192 mg, 65%). MS (ESI) mass calcd. for: C17H22F3N3O2, 357.2; m/z found 358.2 [M+H]+. 1H NMR (500 MHz, Chloroform-d) 8.33 (s, 1H), 7.61-7.49 (m, 1H), 6.35 (d, J=8.8 Hz, 1H), 5.06 (s, 1H), 4.29 (s, 1H), 4.20 (s, 1H), 4.03-3.91 (m, 1H), 2.04 (dd, J=13.0, 7.6 Hz, 1H), 1.89-1.79 (m, 1H), 1.79-1.71 (m, 1H), 1.59-1.37 (m, 12H).
Step B: (1S,2R,4R)—N-(5-(trifluoromethyl)pyridin-2-yl)-7-azabicyclo[2.2.1]heptan-2-amine. To the title compound of step A (319 mg, 0.89 mmol) in DCM (8.7 mL) was added 4M HCl in dioxane (1.1 mL). The reaction was allowed to proceed overnight then concentrated and neutralized with 5% Na2CO3 (aq) and extracted with DCM (2×). The combined organics were dried (Na2SO4) to give the title compound of step B that was used without further purification.
Step C: (3-fluoro-2-(pyrimidin-2-yl)phenyl)((1S,2R,4R)-2-((5-(trifluoromethyl)pyridin-2-yl)amino)-7-azabicyclo[2.2.1]heptan-7-yl)methanone. To the title compound of step B (100 mg, 0.39 mmol) in DCM (3.9 mL) was added DIPEA (87 μL, 0.51 mmol) and intermediate A-2 (100 mg, 0.43 mmol). Then T3P (50% solution in DMF, 0.7 mL, 1.16 mmol) was added dropwise and the reaction heated at 45° C. for 12 h. After allowing to cool to rt, DCM was added and the mixture washed with H2O then saturated NaHCO3 (aq). The combined aq layers were extracted with DCM. The combined organic layers were dried (Na2SO4). Purification was performed using Agilent prep method X to give the title compound (61 mg, 34%). MS (ESI) mass calcd. for: C23H19F4N5O, 457.2; m/z found 458.2 [M+H]+. 1H NMR (400 MHz, Chloroform-d) 8.88 (d, J=4.9 Hz, 2H), 8.22 (s, 1H), 7.67 (d, J=9.3 Hz, 1H), 7.43-7.28 (m, 3H), 7.24-7.12 (m, 2H), 6.19 (d, J=8.8 Hz, 1H), 4.76-4.68 (m, 1H), 4.43-4.32 (m, 1H), 4.08 (d, J=5.0 Hz, 1H), 2.16 (dd, J=12.9, 8.1 Hz, 1H), 2.08-1.83 (m, 2H), 1.77-1.38 (m, 3H).
Prepared analogous to Example 279 substituting intermediate A-2 with intermediate A-25. MS (ESI) mass calcd. for: C23H19F4N5O, 457.2; m/z found 458.2 [M+H]+. 1H NMR (400 MHz, Chloroform-d) 8.89-8.76 (m, 2H), 8.36 (s, 0.2H), 8.26-8.19 (m, 0.8H), 8.05-7.91 (m, 0.4H), 7.70 (dd, J=9.3, 2.7 Hz, 0.6H), 7.60-7.53 (m, 0.3H), 7.48-7.40 (m, 0.3H), 7.40-7.28 (m, 2.6H), 7.25-6.99 (m, 1.6H), 6.36 (d, J=8.7 Hz, 0.2H), 5.96 (d, J=8.8 Hz, 0.8H), 5.70 (s, 0.2H), 4.87-4.80 (m, 0.8H), 4.73 (d, J=5.3 Hz, 0.2H), 4.38 (s, 0.8H), 4.17 (s, 0.2H), 4.06-4.00 (m, 0.8H), 4.00-3.94 (m, 0.2H), 2.21 (dd, J=12.9, 8.0 Hz, 0.8H), 2.12-1.35 (m, 5.2H).
Prepared analogous to Example 269 substituting intermediate A-16 with intermediate A-26. MS (ESI) mass calcd. for: C23H21F3N6O, 454.2; m/z found 455.3 [M+H]+. 1H NMR (500 MHz, Chloroform-d) 8.89-8.85 (m, 2H), 8.70 (s, 1H), 8.44-8.32 (m, 2H), 7.34-7.23 (m, 3H), 7.21-7.15 (m, 1H), 4.77-4.68 (m, 1H), 4.43-4.33 (m, 1H), 4.11 (d, J=5.1 Hz, 1H), 2.36 (s, 3H), 2.19 (dd, J=12.8, 7.9 Hz, 1H), 2.09-1.99 (m, 1H), 1.94-1.85 (m, 1H), 1.72-1.48 (m, 3H).
The title compound of Example 238 (63 mg, 0.14 mmol) was dissolved in DMF (1.4 mL) and then sodium tert-butoxide (15 mg, 0.15 mmol) followed by iodomethane (9 μL, 0.14 mmol) were added. After 15 h at room temperature the reaction mixture was diluted with EtOAc and water was added. The aqueous phase was extracted twice with EtOAc and the combined organic phases were dried over MgSO4, filtered and evaporated. Purification was performed using Agilent prep method X to give the title compound (40 mg, 62%). MS (ESI) mass calcd. for: C23H20F4N6O, 472.2; m/z found 473.2 [M+H]+. 1H NMR (500 MHz, Chloroform-d) 8.81 (d, J=4.9 Hz, 2H), 8.35 (s, 1H), 8.02 (s, 1H), 7.55-7.46 (m, 1H), 7.34-7.20 (m, 3H), 4.81-4.73 (m, 1H), 4.67 (d, J=4.3 Hz, 1H), 4.17-4.08 (m, 1H), 3.05 (s, 3H), 2.12 (dd, J=12.8, 8.3 Hz, 1H), 1.98-1.44 (m, 5H).
Prepared analogous to Example 269 substituting intermediate A-16 with intermediate A-31. MS (ESI) mass calcd. for: C22H20F3N5O2, 443.2; m/z found 444.1 [M+H]+. 1H NMR (400 MHz, Chloroform-d) 8.48 (s, 1H), 8.35 (s, 1H), 7.88-7.78 (m, 1H), 7.68 (s, 0.4H), 7.44-7.21 (m, 3.6H), 7.15 (dd, J=6.6, 2.2 Hz, 0.6H), 7.06-6.97 (m, 0.4H), 4.84-4.78 (m, 0.6H), 4.73-4.67 (m, 0.4H), 4.33 (td, J=8.4, 3.0 Hz, 0.4H), 4.24 (td, J=8.2, 3.7 Hz, 0.6H), 4.04-3.98 (m, 0.4H), 3.97-3.89 (m, 0.6H), 2.47 (s, 1.7H), 2.37 (s, 1.3H), 2.19-1.41 (m, 6H).
In a microwave vial was dissolved the title compound of Example 277 (30 mg, 0.06 mmol) and 2-(tributylstannyl)oxazole (15 μL, 0.07 mmol) in DME (1 mL). The solution was degassed with N2 for 5 minutes then CuI (1 mg, 0.0045 mmol) and Pd(PPh3)4 (5 mg, 0.0045 mmol) were added. The reaction was purged with N2 and heated at 145° C. for 3 h. The reaction was cooled to rt, filtered through a pad of celite and purified via prep HPLC to give the title compound (19 mg, 72%). MS (ESI) mass calcd. for: C21H17F4N5O2, 447.1; m/z found 448.1 [M+H]+. 1H NMR (500 MHz, Chloroform-d) 8.49 (s, 1H), 8.36 (s, 0.8H), 7.85 (s, 0.8H), 7.76 (s, 0.4H), 7.62-7.45 (m, 1H), 7.43-7.33 (m, 1H), 7.32-7.23 (m, 2H), 7.23-7.09 (m, 1H), 4.91-4.85 (m, 0.4H), 4.78 (d, J=5.4 Hz, 0.6H), 4.42 (td, J=8.6, 2.8 Hz, 0.6H), 4.28 (td, J=8.2, 3.6 Hz, 0.4H), 4.00-3.95 (m, 0.6H), 3.89 (d, J=4.4 Hz, 0.4H), 2.23-1.44 (m, 6H).
Step A: (±)-tert-butyl 2-((5-(trifluoromethyl)pyrimidin-2-yl)oxy)-7-azabicyclo[2.2.1]heptane-7-carboxylate: To (±)-tert-butyl 2-hydroxy-7-azabicyclo[2.2.1]heptane-7-carboxylate (exo) (52 mg, 0.25 mol) in DMF (5 mL) was added 60 wt % NaH (20 mg, 0.5 mmol) in one portion. The reaction was heated at 80° C. for 5 min, then 2-chloro-5-(trifluoromethyl)pyrimidine (89.7 mg, 0.49 mmol) was added. After heating at 80° C. for 2 hours, water was added and the mixture extracted with DCM (3×). The combined organics were dried (Na2SO4) and concentrated. Purification via silica gel chromatography (0-50% EtOAc in hexanes) gave the title compound (20 mg, 23%). MS (ESI) mass calcd. for: C16H20F3N3O3, 359.4; m/z found 260.1 [M-Boc]+.
Step B: (±)-(3-fluoro-2-(pyrimidin-2-yl)phenyl)(2-((5-(trifluoromethyl)pyrimidin-2-yl)oxy)-7-azabicyclo[2.2.1]heptan-7-yl)methanone: To (±)-tert-butyl 2-((5-(trifluoromethyl)pyrimidin-2-yl)oxy)-7-azabicyclo[2.2.1]heptane-7-carboxylate (20 mg, 0.06 mmol0 in DCM (2 mL) was added 2 mL (2M HCl in Et2O) and stirred at rt for 3 h. The reaction mixture was concentrated and placed under high vacuum for 1 h. To the intermediate in DCM (2 mL) was added carboxylic acid (A-2) (13.3 mg, 0.06 mmol), HOBt (13.7 mg, 0.101 mmol), EDCI (19.4 mg, 0.101 mmol) and DIEPA (26 μL, 0.15 mmol). After stirring at rt for 2 h, saturated NaHCO3 (aq.) was added and the mixture was extracted with DCM (3×). The combined organics were dried (Na2SO4), and concentrated. Purification via silica gel chromatography (0-100% EtOAc in hexanes) gave the title compound (9 mg, 38%). MS (ESI) mass calcd. for: C22H17F4N5O2, 459.1; m/z found 460.1 [M+H]+. 1H NMR (500 MHz, Chloroform-d) 8.88 (d, J=4.9 Hz, 1H), 8.81 (d, J=4.9 Hz, 1H), 8.74 (d, J=12.6 Hz, 2H), 7.63-7.27 (m, 3H), 7.14 (t, J=8.9 Hz, 1H), 4.99 (dt, J=8.3, 4.8 Hz, 1H), 4.87-4.66 (m, 1H), 4.16-3.97 (m, 1H), 2.07 (d, J=4.3 Hz, 1H), 1.91 (d, J=32.9 Hz, 1H), 1.85-1.68 (m, 2H), 1.66-1.60 (m, 1H), 1.51 (dd, J=7.9, 4.8 Hz, 1H).
Step A: (±)-tert-butyl 2-((5-(trifluoromethyl)pyrimidin-2-yl)oxy)-7-azabicyclo[2.2.1]heptane-7-carboxylate: To (±)-tert-butyl 2-hydroxy-7-azabicyclo[2.2.1]heptane-7-carboxylate (endo) (150 mg, 0.703 mol) in DMF (8 mL) was added 60 wt % NaH (56.3 mg, 1.41 mmol) in one portion. The reaction was heated at 80° C. for 5 min, then 2-chloro-5-(trifluoromethyl)pyrimidine (257 mg, 1.4 mmol) was added. After heating at 80° C. for 2 hours, water was added and the mixture extracted with DCM (3×). The combined organics were dried (Na2SO4) and concentrated. Purification via silica gel chromatography (0-50% EtOAc in hexanes) gave the title compound (130 mg, 51%). MS (ESI) mass calcd. for: C16H20F3N3O3, 359.4; m/z found 260.1 [M-Boc]+. 1H NMR (400 MHz, Chloroform-d) 8.82-8.71 (m, 2H), 5.28 (d, J=10.0 Hz, 1H), 4.59 (s, 1H), 4.25 (s, 1H), 2.43 (dddd, J=13.1, 10.1, 5.2, 2.8 Hz, 1H), 2.18-2.04 (m, 1H), 1.85 (dd, J=7.8, 3.8 Hz, 1H), 1.69 (s, 1H), 1.59 (s, 2H), 1.47 (s, 9H).
Step B: (3-fluoro-2-(pyrimidin-2-yl)phenyl)((1R,2S,4S)-2-((5-(trifluoromethyl)pyrimidin-2-yl)oxy)-7-azabicyclo[2.2.1]heptan-7-yl)methanone: To (±)-tert-butyl 2-((5-(trifluoromethyl)pyrimidin-2-yl)oxy)-7-azabicyclo[2.2.1]heptane-7-carboxylate (143 mg, 0.398 mmol) in DCM (3 mL) was added 2M HCl in Et2O (3 mL). After 3 h at rt the reaction mixture was concentrated and placed under high vacuum for 1 h. To the intermediate in DCM (3 mL) was added carboxylic acid (A-2) (95.5 mg, 0.438 mmol), HOBt (88.9 mg, 0.658 mmol0, EDCI (126.1 mg, 0.658 mmol) and DIEPA (170 μL, 0.987 mmol). After stirring at rt for 2 h, saturated NaHCO3 (aq.) was added and the mixture was extracted with DCM (3×). The combined organics were dried (Na2SO4), and concentrated. Purification via silica gel chromatography (0-100% EtOAc in hexanes) gave the title compound (78.6 mg, 47%). MS (ESI) mass calcd. for: C22H17F4N5O2, 459.1; m/z found 460.1 [M+H]+. 1H NMR (400 MHz, Chloroform-d) δ 8.85 (t, J=5.2 Hz, 2H), 8.76 (d, J=12.3 Hz, 2H), 7.47 (dd, J=8.5, 5.4 Hz, 1H), 7.29 (td, J=5.4, 4.9, 4.3 Hz, 3H), 5.58-5.40 (m, 1H), 5.30 (s, 1H), 5.09-4.92 (m, 1H), 4.67 (s, 1H), 4.34 (s, 1H), 4.02 (s, 1H), 2.61-2.39 (m, 1H), 2.32-2.08 (m, 1H), 1.90 (d, J=13.7 Hz, 1H).
Prepared analogous to Example 238 substituting intermediate A-2 with intermediate A-8. MS (ESI) mass calcd. for: C20H22F3N5O2, 421.2; m/z found 422.2 [M+H]+. 1H NMR (400 MHz, Chloroform-d) 8.31 (s, 0.2H), 8.24 (s, 0.8H), 8.01-7.81 (m, 1.8H), 7.25-7.09 (m, 2H), 6.15 (d, J=8.0 Hz, 0.2H), 5.01-4.93 (m, 0.8H), 4.87-4.80 (m, 0.2H), 4.32-4.24 (m, 0.2H), 4.18-4.02 (m, 2.8H), 3.95 (d, J=4.6 Hz, 0.8H), 3.88-3.82 (m, 0.2H), 2.55-2.46 (m, 3H), 2.26-1.23 (m, 9H).
Prepared analogous to Example 238 substituting intermediate A-2 with intermediate A-27. MS (ESI) mass calcd. for: C19H17F3N8O, 430.1; m/z found 431.2 [M+H]+. 1H NMR (400 MHz, Chloroform-d) 8.65 (dd, J=4.7, 1.5 Hz, 0.2H), 8.55 (dd, J=4.8, 1.5 Hz, 0.8H), 8.39-8.32 (m, 0.4H), 8.29-8.18 (m, 1.6H), 7.97-7.86 (m, 2.2H), 7.70 (s, 0.8H), 7.56 (dd, J=8.3, 4.7 Hz, 0.2H), 7.50 (dd, J=8.3, 4.7 Hz, 0.8H), 7.15 (d, J=8.6 Hz, 0.8H), 6.12 (d, J=8.6 Hz, 0.2H), 4.97-4.89 (m, 0.8H), 4.82 (d, J=5.2 Hz, 0.2H), 4.29 (td, J=7.9, 2.8 Hz, 1H), 4.12-4.07 (m, 0.2H), 4.04 (d, J=5.0 Hz, 0.8H), 2.27-1.43 (m, 6H).
Prepared analogous to Example 238 substituting intermediate A-2 with intermediate A-28. MS (ESI) mass calcd. for: C23H21F3N6O2, 470.2; m/z found 471.2[M+H]+. 1H NMR (400 MHz, Chloroform-d) 8.89-8.71 (m, 2H), 8.53-8.14 (m, 1.5H), 7.99-7.76 (m, 0.5H), 7.60-7.29 (m, 3.7H), 7.23-6.99 (m, 1H), 6.08 (d, J=8.9 Hz, 0.2H), 5.78 (d, J=8.5 Hz, 0.1H), 5.00-4.78 (m, 1H), 4.46-4.35 (m, 1H), 4.07 (s, 0.5H), 3.91-3.79 (m, 3.5H), 2.32-1.24 (m, 6H).
Prepared analogous to Example 238 substituting intermediate A-2 with intermediate A-6. MS (ESI) mass calcd. for: C22H18F4N6O, 458.1; m/z found 459.2 [M+H]+. 1H NMR (400 MHz, Chloroform-d) 8.89-8.72 (m, 2H), 8.38-8.16 (m, 2H), 7.78 (dd, J=7.8, 1.1 Hz, 1H), 7.55-7.44 (m, 1H), 7.43-7.35 (m, 1H), 7.34-7.14 (m, 2H), 4.93-4.85 (m, 1H), 4.50-4.39 (m, 1H), 3.98-3.88 (m, 1H), 2.31-1.11 (m, 6H).
Prepared analogous to Example 238 substituting intermediate A-2 with intermediate A-29. MS (ESI) mass calcd. for: C23H22F3N5O2, 457.2 m/z found 458.2 [M+H]+.
Prepared analogous to Example 238 substituting intermediate A-2 with intermediate A-30. MS (ESI) mass calcd. for: C24H25F3N6O2, 486.2 m/z found 487.2 [M+H]+.
Prepared analogous to Example 284 substituting title compound of Example 277 with title compound of Example 276 and 2-(tributylstannyl)oxazole with 2-(tributylstannyl)pyridine. MS (ESI) mass calcd. for: C24H22F3N5O, 453.2 m/z found 454.2 [M+H]+. 1H NMR (400 MHz, Chloroform-d) 8.72-8.66 (m, 1H), 8.45 (s, 0.5H), 8.39 (s, 1.5H), 7.86-7.75 (m, 1H), 7.52-7.44 (m, 1H), 7.38-7.20 (m, 4.2H), 7.18-7.12 (m, 0.8H), 4.72-4.65 (m, 0.8H), 4.49-4.45 (m, 0.2H), 4.32 (s, 0.8H), 4.03-3.95 (m, 1H), 3.88-3.83 (m, 0.2H), 2.26 (s, 2.2H), 2.23 (s, 0.8H), 2.16 (dd, J=12.8, 7.9 Hz, 0.8H), 1.98-1.08 (m, 5.2H).
Prepared analogous to Example 279 substituting intermediate A-2 with intermediate A-16. MS (ESI) mass calcd. for: C21H18F4N6O, 446.1 m/z found 447.2 [M+H]+. 1H NMR (500 MHz, Chloroform-d) 8.33 (s, 0.2H), 8.23 (s, 0.8H), 7.96 (s, 1.55H), 7.91 (s, 0.45H), 7.57-7.48 (m, 0.4H), 7.44-7.29 (m, 2H), 7.30-7.21 (m, 1H), 7.21-7.13 (m, 0.8H), 6.72 (s, 0.6H), 6.36-6.25 (m, 1H), 5.34 (s, 0.2H), 4.78-4.69 (m, 0.8H), 4.61 (d, J=5.2 Hz, 0.2H), 4.28 (s, 0.8H), 4.12 (s, 0.2H), 4.05-3.95 (m, 1H), 2.17-1.41 (m, 6H).
Prepared analogous to Example 279 substituting intermediate A-2 with intermediate A-24. MS (ESI) mass calcd. for: C22H21F3N6O, 442.1 m/z found 443.2 [M+H]+. 1H NMR (500 MHz, Chloroform-d) 8.32 (s, 0.2H), 8.23 (s, 0.8H), 7.90 (s, 1.55H), 7.85 (s, 0.45H), 7.57-7.25 (m, 3.2H), 7.24-7.15 (m, 0.8H), 6.93 (s, 0.8H), 6.38-6.27 (m, 1H), 5.22 (s, 0.2H), 4.74-4.65 (m, 0.8H), 4.55 (d, J=4.7 Hz, 0.2H), 4.28 (s, 0.8H), 4.09 (s, 0.2H), 4.03-3.95 (m, 1H), 2.20 (s, 3H), 2.13-1.38 (m, 6H).
Prepared analogous to Example 279 substituting intermediate A-2 with intermediate A-31. MS (ESI) mass calcd. for: C23H21F3N4O2, 442.2 m/z found 443.2 [M+H]+. 1H NMR (500 MHz, Chloroform-d) 8.19 (s, 1H), 7.91-7.80 (m, 2H), 7.32-7.21 (m, 4H), 7.19-7.13 (m, 1H), 6.32 (d, J=8.8 Hz, 1H), 4.79-4.72 (m, 1H), 4.36-4.28 (m, 1H), 3.93 (d, J=4.6 Hz, 1H), 2.29 (s, 3H), 2.10 (dd, J=12.9, 8.1 Hz, 1H), 2.00-1.85 (m, 2H), 1.76-1.64 (m, 2H), 1.55-1.46 (m, 1H).
Prepared analogous to Example 238 substituting intermediate B-5 with intermediate B-8. MS (ESI) mass calcd. for C22H18F4N6O, 458.2; m/z found 459.1 [M+H]+. 1H NMR (500 MHz, Chloroform-d) 8.91-8.84 (m, 2H), 8.27 (s, 1H), 8.19 (s, 1H), 7.65 (d, J=1.4 Hz, 1H), 7.44-7.34 (m, 2H), 7.24-7.16 (m, 2H), 4.77-4.68 (m, 1H), 4.43-4.33 (m, 1H), 4.07 (d, J=5.1 Hz, 1H), 2.16 (dd, J=13.0, 8.2 Hz, 1H), 2.10-1.99 (m, 1H), 1.98-1.86 (m, 1H), 1.78-1.65 (m, 2H), 1.58-1.48 (m, 1H).
Assays
The in vitro affinity of the compounds of the invention for the rat/human orexin 1 and human orexin 2 receptors was determined by competitive radioligand binding using [3H] (1-(5-(2-fluoro-phenyl)-2-methyl-thiazol-4-yl)-1-((S)-2-(5-phenyl-(1,3,4)oxadiazol-2-ylmethyl)-pyrrolidin-1-yl)-methanone)(Langmead et al., 2004) and [3H]EMPA (n-ethyl-2[96-methoxy-pyridin-3-yl)-(toluene-2-sulfonyl)-amino]-N-pyridin-3-ylmethyl acetamide), respectively (Langmead et al., 2004, British Journal of Pharmacology 141:340-346; Malherbe et al., 2004, British Journal of Pharmacology 156:1326-41).
The in vitro functional antagonism of the compounds on the human orexin 1 and orexin 2 receptors was determined using fluorometric imaging plate reader (FLIPR) based calcium assays.
Rat and Human Orexin 1 Receptor Radioligand Binding Studies
Human Embryonic Kidney 293 cells (HEK293) stably expressing rat orexin 1 receptor (Genebank accession number NM_001525) or Chinese ovary cells (CHO) stably expressing human orexin 1 receptor (Genebank accession number NM_001526) were grown to confluency in DMEM (Hyclone, cat # SH30022), 10% FBS, 1× Pen/Strep, 1× sodium pyruvate, 10 mM HEPES, 600 μg/mL G418 and DMEM/F12 (Gibco, Cat #11039), 10% FBS, 1× Pen/Strep, 600 μg/mL G418 media, respectively on 150 cm2 tissue culture plates, washed with 5 mM EDTA in PBS (HyClone Dulbecco's Phosphate Buffered Saline 1× with Calcium and Magnesium, Cat # SH30264.01, hereafter referred to simply as PBS) and scraped into 50 ml tubes. After centrifugation (2K×G, 5 min at 4° C.), the supernatant was aspirated and the pellets frozen and stored at −800 C. Cells were resuspended in PBS in the presence of 1 tablet of protease inhibitor cocktail (Roche, Cat. #11836145001) per 50 mL. Each cell pellet from a 15 cm plate was resuspended in 10 mL, stored on ice, and homogenized for 45 sec prior to addition to the reactions. Competition binding experiments in 96 well polypropylene plates were performed using [3H]-SB674042 (Moraveck Corporation, specific activity=35.3 Ci/mmol), diluted to a 10 nM concentration in PBS (4 nM final). Compounds were solubilized in 100% DMSO (Acros Organics, Cat. #61042-1000) and tested over a range of 7 concentrations (from 0.1 nM to 10 μM). The final concentration of DMSO in the reactions is equal to or less than 0.1%. Total and nonspecific binding was determined in the absence and presence of 10 μM almorexant. The total volume of each reaction is 200 μL (20 μL of diluted compounds, 80 μL of [3H]-(1-(5-(2-fluoro-phenyl)-2-methyl-thiazol-4-yl)-1-((S)-2-(5-phenyl-(1,3,4)oxadiazol-2-ylmethyl)-pyrrolidin-1-yl)-methanone) diluted in PBS and 100 μL of the cell suspension). Reactions were run for 60 min at room temperature and terminated by filtration through GF/C filter plates (PerkinElmer, Cat. #6005174) presoaked in 0.3% polyethylenimine using the cell harvester (PerkinElmer Filtermate). The plates were washed 3 times by aspirating 30 ml PBS through the plates. Plates were dried in 55° C. oven for 60 min, scintillation fluid was added, and the radioactivity was counted on a Topcount (Packard).
IC50 values (i.e. concentration of unlabelled compound required to compete for 50% of specific binding to the radioligand) was calculated using the GraphPad Prism software (GraphPad Prism Software Inc., San Diego, Calif.) with a fit to a sigmoidal dose-response curve. Apparent Ki values were calculated as Ki=IC50/(1+C/Kd), where C is concentration of radioligand and Kd=4 nM for rat orexin 1 receptor and 6 nM for human orexin 1 receptor.
Human Orexin 2 Receptor Radioligand Binding Studies
HEK293 stably expressing human orexin 2 receptor (Genebank accession number NM_001526) were grown to confluency in DMEM (Hyclone, cat # SH30022), 10% FBS, 1× Pen/Strep, 1× NaPyruvate, 10 mM HEPES, 600 g/ml G418 media on 150 cm2 tissue culture plates, washed with 5 mM EDTA in PBS (HyClone Dulbecco's Phosphate Buffered Saline 1× with Calcium and Magnesium, Cat # SH30264.01, hereafter referred to simply as PBS) and scraped into 50 ml tubes. After centrifugation (2K xG, 5 min at 40° C.), the supernatant was aspirated and the pellets frozen and stored at −800° C. Cells were resuspended in PBS in the presence of 1 tablet of protease inhibitor cocktail (Roche, Cat. #11836145001) per 50 mL. Each cell pellet from a 15 cm plate was resuspended in 10 mL, stored on ice, and homogenized for 45 sec just prior to addition to the reactions. Competition binding experiments in 96 well polypropylene plates were performed using [3H]-EMPA (Moraveck Corporation, specific activity=29.6 Ci/mmol), diluted to a 5 nM concentration in PBS (2 nM final concentration). Compounds were solubilized in 100% DMSO (Acros Organics, Cat. #61042-1000) and tested over a range of 7 concentration (from 0.1 nM to 10 μM). The final concentration of DMSO in the reactions is equal to or less than 0.1%. Total and nonspecific binding was determined in the absence and presence of 10 μM almorexant. The total volume of each reaction is 200 μL (20 μL of diluted compounds, 80 μL of [3H]-EMPA diluted in PBS and 100 μL of the cell suspension). Reactions were run for 60 min at room temperature and terminated by filtration through GF/C filter plates (PerkinElmer, Cat. #6005174) presoaked in 0.3% polyethylenimine using the cell harvester (PerkinElmer Filtermate). The plates were washed 3 times by aspirating 30 ml PBS through the plates. Plates were dried in 55° C. oven for 60 min, scintillation fluid was added, and the radioactivity was counted on a Topcount (Packard).
IC50 values (i.e. concentration of unlabelled compound required to compete for 50% of specific binding to the radioligand) was calculated using the GraphPad Prism software (GraphPad Prism Software Inc., San Diego, Calif.) with a fit to a sigmoidal dose-response curve. Apparent Ki values were calculated as Ki=IC50/(1+C/Kd), where C is concentration of radioligand and Kd=2 nM.
Human Orexin 1 Receptor Ca2+ Mobilization Assay
CHO cells stably transfected with the human orexin 1 receptor (Genebank accession number NM_001526) were grown to confluency in DMEM/F12, 10% FBS, 1× pen-strep, 400 g/ml G418. Cells were seeded on to 384-well Packard viewplates at a density of 10,000 cells/well and incubated overnight at 370 C, 5% CO2. The cells were dye-loaded with BD Calcium Assay kit (BD, cat #640178) in HBSS (Gibco, cat#14025-092) with 2.5 mM probenecid and incubated at 37° C., 5% CO2 for 45 min. Cells were pre-incubated with compounds (diluted in DMEM/F-12) for 15-30 minutes before agonist (orexin A, 10 nM) stimulation. Ligand-induced Ca2+ release was measured using a Fluorometric Imaging Plate Reader (FLIPR, Molecular Devices, Sunnyvale, Calif.). Functional responses were measured as peak fluorescence intensity minus basal. The concentration of agonist that produced a half-maximal response is represented by the EC50 value. Antagonistic potency values were converted to apparent pKB values using a modified Cheng-Prusoff correction. Apparent pKB=−log IC50/1+[conc agonist/EC50]. Data are expressed as mean±S.E.M.
Human Orexin 2 Receptor Ca2+ Mobilization Assay
PFSK-1 cells endogenously expressing the human orexin 2 receptor were grown to confluency in RPMI1640 (Hyclone, cat#30027.02), 10% FBS, 1× pen-strep. Cells were seeded on to 384-well Packard viewplates at a density of 5,000 cells/well and incubated overnight at 370 C, 5% CO2. The cells were dye-loaded with BD Calcium Assay kit (BD, cat #640178) in HBSS (Gibco, cat#14025-092) with 2.5 mM probenecid and incubated at 37° C., 5% CO2 for 45 min. Cells were pre-incubated with compounds (diluted in DMEM/F-12) for 15-30 minutes before agonist (orexin B, 100 nM) stimulation. Ligand-induced Ca2+release was measured using a Fluorometric Imaging Plate Reader (FLIPR, Molecular Devices, Sunnyvale, Calif.). Functional responses were measured as peak fluorescence intensity minus basal. The concentration of agonist that produced a half-maximal response is represented by the EC50 value. Antagonistic potency values were converted to apparent pKB values using a modified Cheng-Prusoff correction. Apparent pKB=−log IC50/1+[conc agonist/EC50]. Data are expressed as mean±S.E.M.
Preferred compounds of the invention are set forth in the table below. Orexin receptor activity of certain compounds of the invention is also set forth in the below table.
This application is a continuation of U.S. patent application Ser. No. 14/718,327, filed May 21, 2015, which is a divisional of U.S. patent application Ser. No. 14/206,764, filed Mar. 12, 2014, now U.S. Pat. No. 9,062,078, which claims the benefit of U.S. Provisional Patent Application No. 61/780,428, filed Mar. 13, 2013, the entire disclosures of which are incorporated herein by reference in their entirety.
| Number | Date | Country | |
|---|---|---|---|
| 61780428 | Mar 2013 | US |
| Number | Date | Country | |
|---|---|---|---|
| Parent | 14206764 | Mar 2014 | US |
| Child | 14718327 | US |
| Number | Date | Country | |
|---|---|---|---|
| Parent | 14718327 | May 2015 | US |
| Child | 15262882 | US |
