Salt forms of a xanthine compound

Abstract
The present invention relates to novel salt forms of 1-[(4-methyl-quinazolin-2-yl)methyl]-3-methyl-7-(2-butyn-1-yl)-8-(3-(R)-amino-piperidin-1-yl)-xanthine, a DPP-4 inhibitor and their use in pharmaceutical compositions useful in the treatment of type 2, diabetes, as well as their production.
Description

The present invention relates to certain salt forms of a xanthine derivative, namely certain salt forms of the pharmaceutically active compound 1-[(4-methyl-quinazolin-2-yl)methyl]-3-methyl-7-(2-butyn-1-yl)-8-(3-(R)-amino-piperidin-1-yl)-xanthine, including amorphous and crystalline forms thereof (including solvate and hydrate forms), and to processes for the manufacture thereof, as well as to the use thereof in pharmaceutical compositions. Methods for treating and/or preventing of diseases which are associated with the enzyme dipeptidyl peptidase IV (DPP-4), such as e.g. metabolic diseases, particularly diabetes (especially type 2 diabetes mellitus) and diseases related thereto, with these compounds as defined herein optionally in combination with one or more other active substances are also contemplated.


In general, salts, solvates, hydrates, polymorphs, crystalline and amorphous forms of a given substance differ often in crystal habits and/or crystalline solid state properties and hence they may have different physical and pharmaceutical properties such as, for example, shape, density, hardness, deformability, stability, purity, hygroscopicity, flowability, compactation, solubility and/or dissolution properties or the like, which may influence, for example, their manufacturability, processability, pharmacokinetic profile (e.g. bioavailability), drug stability (shelf life), administrability and/or formulability or the like, such as e.g. their suitability as solid, semi-solid or liquid pharmaceutical dosage forms, e.g. as tablets, capsules, suspensions, solutions, suppositories or other pharmaceutical dosage forms (including e.g. sustained release formulations or combination preparations comprising a further active ingredient).


A number of xanthine derivatives are already known in the prior art as DPP-4 inhibitors.


The enzyme DPP-4 (dipeptidyl peptidase IV) also known as CD26 is a serine protease known to lead to the cleavage of a dipeptide from the N-terminal end of a number of proteins having at their N-terminal end a prolin or alanin residue. Due to this property DPP-4 inhibitors interfere with the plasma level of bioactive peptides including the peptide GLP-1 and are considered to be promising drugs for the treatment of diabetes mellitus.


For example, DPP-4 inhibitors and their uses, particularly their uses in metabolic (especially diabetic) diseases, are disclosed in WO 2002/068420, WO 2004/018467, WO 2004/018468, WO 2004/018469, WO 2004/041820, WO 2004/046148, WO 2005/051950, WO 2005/082906, WO 2005/063750, WO 2005/085246, WO 2006/027204, WO 2006/029769 or WO2007/014886; or in WO 2004/050658, WO 2004/111051, WO 2005/058901 or WO 2005/097798; or in WO 2006/068163, WO 2007/071738 or WO 2008/017670; or in WO 2007/128721 or WO 2007/128761.


The compound 1-[(4-methyl-quinazolin-2-yl)methyl]-3-methyl-7-(2-butyn-1-yl)-8-(3-(R)-amino-piperidin-1-yl)-xanthine is an orally active DPP-4 inhibitor with therapeutic value for treating type 2 diabetes mellitus, obesity and related diseases.


It has now been found that certain salts of 1-[(4-methyl-quinazolin-2-yl)methyl]-3-methyl-7-(2-butyn-1-yl)-8-(3-(R)-amino-piperidin-1-yl)-xanthine have surprising and useful properties.


Thus, the present invention relates to compounds which are acid addition salts of 1-[(4-methyl-quinazolin-2-yl)methyl]-3-methyl-7-(2-butyn-1-yl)-8-(3-(R)-amino-piperidin-1-yl)-xanthine, especially pharmaceutically acceptable inorganic or organic acid addition salts. Particular mention may be made of the physiologically acceptable salts with inorganic or organic acids customarily used in pharmacy, such as e.g. any of those inorganic and organic acids mentioned below. The salts include water-insoluble and, particularly, water-soluble salts.





BRIEF DESCRIPTION OF THE DRAWINGS


FIG. 1 shows the XRPD diagram of the besylate salt of BI 1356.



FIG. 2 shows the XRPD diagram of the bromide salt of BI 1356.



FIG. 3 shows the XRPD diagram of the benzoate salt of BI 1356.



FIG. 4 shows the XRPD diagram of the eslylate salt of BI 1356.



FIG. 5 shows the XRPD diagram of the fumarate salt of BI 1356.



FIG. 6 shows the XRPD diagram of the mesylate salt of BI 1356.



FIG. 7 shows the XRPD diagram of the salicylate salt of BI 1356.



FIG. 8 shows the XRPD diagram of the tosylate salt of BI 1356.



FIG. 9 shows the XRPD diagram of diagram of the tetrahydrate of the hydrochloride salt of BI 1356.



FIG. 10 shows the XRPD diagram of the glycolate salt of BI 1356.



FIG. 11 shows the XRPD diagram of the malonate salt of BI 1356.



FIG. 12 shows the XRPD diagram of the gentisate salt of BI 1356.





DETAILED DESCRIPTION OF THE INVENTION

Inorganic acids customarily used for forming pharmaceutically acceptable acid addition salts include, by way of example and not limitation, hydrochloric acid, hydrobromic acid, phosphoric acid, nitric acid, sulfuric acid, and the like.


Organic acids customarily used for forming pharmaceutically acceptable acid addition salts include, by way of example and not limitation, acetic acid, 2,2-dichloroacetic acid, adipic acid, ascorbic acid (D- or L-form thereof, especially the L-form thereof), aspartic acid (D- or L-form thereof, especially the L-form thereof), benzenesulfonic acid, benzoic acid, 4-acetamido-benzoic acid, camphoric acid ((+)- or (−)-form thereof, especially the (+)-form thereof), camphor-10-sulfonic acid ((+)- or (−)-form thereof, especially the (+)-form thereof), capric acid (decanoic acid), caproic acid (hexanoic acid), caprylic acid (octanoic acid), carbonic acid, cinnamic acid, citric acid, cyclamic acid, dodecylsulfuric acid, ethane-1,2-disulfonic acid, ethanesulfonic acid, 2-hydroxy-ethanesulfonic acid, formic acid, fumaric acid, galactaric acid, gentisic acid, glucoheptonic acid (D- or L-form thereof, especially the D-form thereof), gluconic acid (D- or L-form thereof, especially the D-form thereof); glucuronic acid (D- or L-form thereof, especially the D-form thereof), glutamic acid, glutaric acid, 2-oxo-glutaric acid, glycerophosphoric acid, glycolic acid, hippuric acid, isobutyric acid, lactic acid (D- or L-form thereof), lactobionic acid, lauric acid, maleic acid, malic acid (D- or L-form thereof), malonic acid, mandelic acid (D- or L-form thereof), methanesulfonic acid, naphthalene-1,5-disulfonic acid, naphthalene-2-sulfonic acid, 1-hydroxy-2-naphthoic acid, nicotinic acid, oleic acid, orotic acid, oxalic acid, palmitic acid, pamoic acid (embonic acid), propionic acid, pyroglutamic acid (D- or L-form thereof, especially the L-form thereof), salicyclic acid, 4-aminosalicyclic acid, sebacic acid, stearic acid, succinic acid, tartaric acid (D- or L-form thereof), thiocyanic acid, toluenesulfonic acid (especially the p-isomer thereof), undecylenic acid, and the like.


A class of above-mentioned organic acids includes carboxylic acid derivatives. Another class of above-mentioned organic acids includes sulfonic acid derivatives.


The acids may be monobasic or polybasic acids, illustrative polybasic acids are dibasic or tribasic. These polybasic acids can be, depending on their nature, substantially singly, twicely or tricely deprotonated, typically they are substantially singly deprotonated.


For example, in carboxylic acid salts the acid can be a mono- or polycarboxylic acid having one or, respectively, two or more carboxylic acid groups. In a first sub-class of polycarboxylic acid salts, the polycarboxylic acids in these salts can be substantially singly deprotonated, as for example in the case of a dicarboxylic acid salt having a 1:1 stoichiometry of free compound and dicarboxylic acid. In a second sub-class of polycarboxylic acid salts, the polybasic carboxylic acid and the free compound can be in a substantially 1:1 stoichiometry, irrespective of the number of carboxylic acid groups in the acid.


A sub-group of above-mentioned inorganic or organic acids includes, by way of example and not limitation, acetic, adipic, L-ascorbic, capric, carbonic, citric, fumaric, galactaric, D-glucoheptanoic, D-gluconic, D-glucuronic, glutamic, glutaric, glycerophosphoric, hippuric, hydrochloric, D- or L-lactic, lauric, maleic, (−)-L-malic, phosphoric, sebacic, succinic, sulphuric, (+)-L-tartaric and thiocyanic acid.


Another sub-group of above-mentioned inorganic or organic acids includes, by way of example and not limitation, alginic, benzenesulfonic, benzoic, (+)-camphoric, caprylic, cyclamic, dodecylsulfuric, ethane-1,2-disulfonic, ethanesulfonic, 2-hydroxy-ethanesulfonic, gentisic, 2-oxoglutaric, isobutyric, lactobionic, malonic, methanesulfonic, naphthalene-1,5-disulfonic, naphthalene-2-sulfonic, 1-hydroxy-2-naphthoic, nicotinic, oleic, orotic, oxalic, pamoic, propionic, (−)-L-pyroglutamic and p-toluenesulfonic acid.


The acids are employed in salt preparation—depending on whether a mono- or polybasic acid is concerned and depending on which salt is desired—in an equimolar quantitative ratio or one differing therefrom.


Thus, within the acid addition salts of this invention the acid and the free compound may be substantially in 1:1 stoichiometry or one differing therefrom, such as e.g. from about 1:2 to about 2:1 stoichiometry. Non-integral stoichiometry ratios may be also possible, such as e.g. 1:1.5 or 1.5:1.


A certain sub-group of acid addition salts with inorganic or organic acids includes, by way of example and not limitation, the hydrochloride, mesylate, hydrobromide, acetate, fumarate, sulfate, succinate, citrate, phosphate, maleate, tartrate, lactate, benzoate and carbonate salt.


Another certain sub-group of acid addition salts with inorganic or organic acids includes, by way of example and not limitation, the hydrochloride, sulphate, tartrate, maleate, citrate, phosphate, acetate, lactate and fumarate salt.


The invention also includes mixtures of salts.


Furthermore, any salt given herein is intended to embrace all tautomers, hydrates, solvates, crystalline, amorphous and polymorphous forms thereof, as well as mixtures thereof.


Those skilled in the art will appreciate that organic compounds can be isolated in association with solvent molecules or can form complexes with solvents in which they are reacted or from which they are precipitated, crystallized or isolated. According to expert's awareness, some of the salts according to this invention may contain, e.g. when isolated in solid form, varying or fixed amounts of solvents (including aqueous and/or non-aqueous solvents). Included within the scope of the invention are therefore solvates (including hydrates, organic solvates and mixed hydrates/organic solvates) of the salts according to this invention. Solvates of the salt forms according to this invention include stoichiometric and non-stoichiometric solvates. Preferably the solvent(s) used is a pharmaceutically acceptable solvent(s), e.g. water and/or ethanol or the like. The present invention embraces both the unsolvated and all solvated forms. Likewise, the present invention embraces all hydrate, anhydrous, hygroscopic and/or non-hygroscopic forms.


In a further aspect, the present invention relates to compounds which are solvates of the salts according to this invention either in simple, such as e.g. solvates comprising an organic solvent alone or water alone, or in mixed form, such as e.g. mixed solvates comprising at least one organic solvent, such as e.g. a low molecular weight aliphatic alcohol, with water (e.g. mixed hydrates/solvates), or mixed solvates comprising at least two different organic solvents with or without water, in any mixing ratios, including homosolvates (solvates in which there is solely one type of solvent) and heterosolvates (solvates in which there are two or more different types of solvents).


For more detailed example, solvates of the salts according to this invention include hydrates and alcoholates (solvates with alcohol, such as e.g. ethanol) as well as mixtures thereof (including mixed hydrates/alcoholates).


The one or more solvents may be present in an non-stoichiometric amount or in a stoichiometric amount, such as e.g. 0.5:1, 1:1, 1.5:1, 2:1, 3:1, or 4:1 molar ratio based on the amount of the solvate-free salt. Where the crystalline forms are solvated, they may contain, for example, up to four molecules of solvens, more usually up to two or three molecules, e.g. one molecule of solvent or two molecules of solvents. Non-stoichiometric solvates may also be formed in which the number of molecules of solvent present is less than one or is otherwise a non-integer, such as e.g., where there is less than one molecule of solvent present, there may be for example 0.4, or 0.5, or 0.6, or 0.7, or 0.8, or 0.9 molecules of solvent present per molecule of compound. For example, solvates or hydrates of the salts according to this invention include, without being limited to, hemi-, mono-, sesqui-, di-, tri- and tetra-solvates or -hydrates, respectively. Stoichiometric and non-stoichiometric mixed solvates of these hydrates with one or more organic solvents (such as e.g. with an alcohol, particularly ethanole) in any mixing ratios are also contemplated within this invention.


In a certain embodiment, the present invention relates to hydrates, solvates with ethanol (ethanolates) and mixed hydrates/ethanolates of the salts of this invention.


Within the solvates of this invention, the solvent molecules can be incorporated into the solid-state structure (such as e.g. they may be become trapped in the crystals upon isolation) or not (such as e.g. they may be retained on the surface of the crystals). When the solvent or water is tightly bound (as e.g. in isolated site solvates), the complex has often a well defined stoichiometry independent of humidity. When, however, the solvent or water is weakly bound (as e.g. in channel solvates and in hygroscopic compounds), the water/solvent content is often dependent on humidity and/or drying conditions and the non-stoichiometry is the norm.


Pharmaceutically non-acceptable salts (including their solvates and hydrates), which can be obtained, for example, as process products during the manufacture on an industrial scale, can be converted into pharmaceutically acceptable salts (including their solvates and hydrates) by processes known to the person skilled in the art, e.g. by salt and/or solvate exchange or displacement, or via the salt- and/or solvate-free compound (with or without isolation).


Salts (including solvates, hydrates and/or other forms) which are unsuitable for pharmaceutical uses but which can be employed, for example, for the isolation or purification of the free compound 1-[(4-methyl-quinazolin-2-yl)methyl]-3-methyl-7-(2-butyn-1-yl)-8-(3-(R)-amino-piperidin-1-yl)-xanthine or of their pharmaceutically acceptable salts (including solvates, hydrates and/or other forms), are also included within this invention.


A particular embodiment of this invention relates to an acid addition salt of 1-[(4-methyl-quinazolin-2-yl)methyl]-3-methyl-7-(2-butyn-1-yl)-8-(3-(R)-amino-piperidin-1-yl)-xanthine selected from the group consisting of a besylate salt, a hydrobromide salt, a benzoate salt, an esylate salt, a fumarate salt, a mesylate salt, a salicylate salt, a tosylate salt, a hydrochloride salt, a glycolate salt, a malonate salt and a gentisate salt, as well as the solvates, in particular the organic solvates, the hydrates and the mixed organic solvates/hydrates thereof.


The salts (including their solvate, hydrate and/or other forms) of this invention can be obtained by methods known to the skilled person for making acid addition salts, e.g. these salts can be prepared (e.g. in situ) during the final reaction, deprotection, isolation, purification and/or further processing of the free compound (or prodrug, precursor or protected compound), or by reacting the free compound with the desired acid or a suitable anion exchange reagent, such as e.g. via a process comprising one or more of the steps described herein. Typically, the free compound is combined with the desired acid, e.g. by dissolving, dispersing or slurrying the free compound in a suitable solvent or mixture of solvents, which contains the desired acid, or to which the desired acid (optionally dissolved in a suitable solvent or mixture of solvents) is then added, or vice versa, with or without heating (e.g. dissolving, mixing and/or reacting can be conducted at ambient temperature or at elevated temperature (such as e.g. from about 30° C. to 70° C. or from 40° C. to 60° C.) or at the boiling temperature of the solvent(s) used, such as temperatures up to 100° C. may be applied to form solutions). The salts can be isolated, e.g. by filtering, crystallization, precipitating e.g. with a nonsolvent for the addition salt or by cooling, or by concentrating (e.g. by heating, removing or evaporating the solvent), and, if desired, purified, e.g. by re-crystallization from an appropriate re-crystallization solvent or mixture of solvents by methods customary to one of skill in the art (e.g. analogously or similarly as described afore), and/or, if required, the process further comprises, at a suitable stage, removing or separating any undesired material or impurities, and finally, optionally, the salts may be washed and/or dried.


In general, solvents, which the skilled person may consider within this invention, may include, without being limited to, organic, non-aqueous or aqueous, protic or aprotic, polar or apolar solvents, such as, for example, ketones such as e.g. acetone, methyl ethyl ketone, methyl propyl ketone, methyl tert- or isobutyl ketone or the like, lactones such as e.g. valerolactone, ethers such as e.g. diethyl ether, diisopropyl ether, ethylene glycol dimethyl ether, tetrahydrofuran, dioxane or the like, hydrocarbons such as e.g. toluene, hexane or the like, chlorinated hydrocarbons such as e.g. methylene chloride, chloroform or the like, low-molecular-weight aliphatic alcohols such as e.g. methanol, ethanol, 1-propanol, isopropanol, butanol or the like, esters such as e.g. acetic acid lower alkyl esters (e.g. ethyl acetate) or the like, amides or lactames such as e.g. N,N-dimethylformamide, N-methyl-2-pyrrolidone or the like, nitriles such as e.g. acetonitrile or the like, or sulfoxides such as e.g. DMSO or the like, or water, or mixtures thereof.


Appropriate solvents or nonsolvents may be determined by solubility tests in various solvents.


Within the meaning of this invention, as particular solvents may be mentioned organic solvents which are wholly or partly water miscible, such as e.g. a suitable solvent for salt formation and/or crystallization is a low-molecular-weight aliphatic alcohol, e.g. ethanol, optionally in combination with water.


In a further aspect, the present invention relates to a process for preparing a salt of the invention, particularly in crystalline form, which comprises one or more of the steps of:


i.) forming a solution comprising 1-[(4-methyl-quinazolin-2-yl)methyl]-3-methyl-7-(2-butyn-1-yl)-8-(3-(R)-amino-piperidin-1-yl)-xanthine and an acid, such as e.g. any of those pharmaceutically acceptable acids described herein, particularly any of those described by way of example in the following examples,


ii.) inducing crystallization of the salt e.g. from solution, and


iii.) recovering the crystalline 1-[(4-methyl-quinazolin-2-yl)methyl]-3-methyl-7-(2-butyn-1-yl)-8-(3-(R)-amino-piperidin-1-yl)-xanthine salt.


In embodiments of this method, 1-[(4-methyl-quinazolin-2-yl)methyl]-3-methyl-7-(2-butyn-1-yl)-8-(3-(R)-amino-piperidin-1-yl)-xanthine and the acid are in 1:1 stoichiometry.


In further embodiments of this method, reacting and/or (re-)crystallization may be performed in an alcohol (particularly ethanol), optionally in the presence of water.


Salts prepared can be converted to another, e.g. by reaction with an appropriate acid or by means of a suitable ion exchanger. Likewise, salts obtained can be converted into the free compounds (e.g. via neutralization with a suitable base, with or without isolation of the free base, e.g. by extraction), which can in turn be converted into salts, by acidification. In this manner, physiologically unacceptable salts can be converted into physiologically acceptable salts.


In a further aspect, the present invention relates to salts of the invention (including their solvates and hydrates) in solid forms, including amorphous, semi-amorphous, polymorphous, semi-crystalline and crystalline forms, as well as mixtures thereof.


For more detailed example, the invention concerns the salts (including their solvates and hydrates whether mixed or not) of the invention in partially crystalline form (such as e.g. from about 5 to 20% crystalline) as well as in substantially crystalline form (such as e.g. greater than any of about 20, 30, 40, 50, 60, 70, 80, 90 or 95% crystalline).


The presence of crystal forms and degree (%) of crystallinity may be determined by the skilled person using X-ray powder diffraction (XRPD). Other techniques, such as solid state NMR, FT-IR, Raman spectroscopy, differential scanning calorimetry (DSC) and microcalorimetry, may also be used.


The crystalline forms and polymorphs of the salts of the present invention may be characterized by their melting points (obtained e.g. by DSC method) or by their respective x-ray powder diffraction spectra data or pattern comprising major peaks (e.g. with a relative intensity of greater than or equal about 10%, 20% or 25% or the like), as shown in the examples hereinafter. Such as for example, a crystalline form of the hydrochloride salt of this invention has the X-ray powder diffraction pattern essentially as defined in Table 10 and/or essentially as defined in FIG. 9.


Crystalline forms and polymorphs may be prepared by crystallization of a compound of this invention. Various crystallization techniques may be used to form and isolate crystalline compounds and polymorphs, such as e.g. any of those crystalline forming procedures described herein, such as, for example, crystallization or precipitation from a suitable solvent or solvent mixtures, stirring of a suspension (phase equilibration), slurrying, solvent evaporation, allowing or causing cooling to a suitable temperature to initiate crystallization, using suitable modes of cooling ranging from very fast to very slow cooling rates during crystallization, effecting a suitable pressure, using seeding crystals, re-crystallization, filtering, washing (e.g. in the crystallising solvent) and/or drying (e.g. under reduced pressure and/or at elevated temperature).


Crystalline forms may also be obtained by heating or melting a form obtained followed by gradual or fast cooling; in this manner one polymorph or one crystalline form may be converted to another.


In a further aspect, the present invention relates to salts of the invention (including their solvates, hydrates, polymorphs, crystalline and amorphous forms) in substantially pure form (e.g. substantially devoid of impurities and/or other forms), for example, in a degree of purity of about >80%, >85%, >90%, >95%, >98%, or >99% of the respective form.


In another aspect, the present invention relates to salts of the invention (including their solvates, hydrates, polymorphs, crystalline and amorphous forms) in substantially pure form, that means, for example, that the respective form includes less than 20%, less than 10%, less than 5%, less than 3% or less than 1% by weight of any impurities or other physical forms.


The present invention further relates to a salt as described herein for use in the treatment and/or prevention of metabolic diseases, particularly type 2 diabetes mellitus.


The present invention further relates to the use of a salt as described herein for the manufacture of a pharmaceutical composition for treating and/or preventing metabolic diseases, particularly type 2 diabetes mellitus.


The present invention further relates to a pharmaceutical composition for use in the treatment and/or prevention of metabolic diseases, particularly type 2 diabetes mellitus, said pharmaceutical composition comprising a salt as described herein and optionally one or more pharmaceutically acceptable carriers and/or diluents.


The present invention further relates to a fixed or non-fixed combination including a kit-of-parts for use in the treatment and/or prevention of metabolic diseases, particularly type 2 diabetes mellitus, said combination comprising a salt as described herein and optionally one or more other active substances, e.g. any of those mentioned herein.


The present invention further relates to the use of a salt as described herein in combination with one or more other active substances, such as e.g. any of those mentioned herein, for the manufacture of a pharmaceutical composition for treatment and/or prevention of metabolic diseases, particularly type 2 diabetes mellitus.


The present invention further relates to a pharmaceutical composition for use in the treatment and/or prevention of metabolic diseases, particularly type 2 diabetes mellitus, said pharmaceutical composition comprising a salt as described herein and optionally one or more other active substances, such as e.g. any of those mentioned herein.


The present invention further relates to a method of treating and/or preventing metabolic diseases, particularly type 2 diabetes mellitus, said method comprising administering to a subject in need thereof (particularly a human patient) an effective amount of a salt as described herein, optionally separately, sequentially, simultaneously, concurrently or chronologically staggered with an effective amount of one or more other active substances, such as e.g. any of those mentioned herein.


Further, the salts as described herein may be useful in one or more of the following methods

    • for preventing, slowing progression of, delaying, or treating a metabolic disorder;
    • for improving glycemic control and/or for reducing of fasting plasma glucose, of postprandial plasma glucose and/or of glycosylated hemoglobin HbA1c;
    • for preventing, slowing, delaying or reversing progression from impaired glucose tolerance, insulin resistance and/or from metabolic syndrome to type 2 diabetes mellitus;
    • for preventing, slowing progression of, delaying or treating of a condition or disorder selected from the group consisting of complications of diabetes mellitus;
    • for reducing the weight or preventing an increase of the weight or facilitating a reduction of the weight;
    • for preventing or treating the degeneration of pancreatic beta cells and/or for improving and/or restoring the functionality of pancreatic beta cells and/or stimulating and/or restoring the functionality of pancreatic insulin secretion; and/or
    • for maintaining and/or improving the insulin sensitivity and/or for treating or preventing hyperinsulinemia and/or insulin resistance.


Examples of such metabolic diseases or disorders amenable by the therapy of this invention may include, without being restricted to, Type 1 diabetes, Type 2 diabetes, inadequate glucose tolerance, insulin resistance, hyperglycemia, hyperlipidemia, hypercholesterolemia, dyslipidemia, metabolic syndrome X, obesity, hypertension, chronic systemic inflammation, retinopathy, neuropathy, nephropathy, atherosclerosis, endothelial dysfunction and osteoporosis.


The compound 1-[(4-methyl-quinazolin-2-yl)methyl]-3-methyl-7-(2-butyn-1-yl)-8-(3-(R)-amino-piperidin-1-yl)-xanthine (compare WO 2004/018468, example 2 (142)), which is also known as BI 1356, has the formula:




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The methods of synthesis for 1-[(4-methyl-quinazolin-2-yl)methyl]-3-methyl-7-(2-butyn-1-yl)-8-(3-(R)-amino-piperidin-1-yl)-xanthine are known to the skilled person. Advantageously, 1-[(4-methyl-quinazolin-2-yl)methyl]-3-methyl-7-(2-butyn-1-yl)-8-(3-(R)-amino-piperidin-1-yl)-xanthine can be prepared using synthetic methods as described in the literature. Thus, for example, it can be obtained as described in WO 2002/068420, WO 2004/018468 or WO 2006/048427, the disclosures of which are incorporated herein.


For pharmaceutical application in warm-blooded vertebrates, particularly humans, usually dosage levels from 0.001 to 100 mg/kg body weight, preferably at 0.1-15 mg/kg, in each case 1 to 4 times a day, of active ingredient may be used. For this purpose, the compounds, optionally combined with other active substances, may be incorporated together with one or more inert conventional carriers and/or diluents, e.g. with corn starch, lactose, glucose, microcrystalline cellulose, magnesium stearate, polyvinylpyrrolidone, citric acid, tartaric acid, water, water/ethanol, water/glycerol, water/sorbitol, water/polyethylene glycol, propylene glycol, cetylstearyl alcohol, carboxymethylcellulose or fatty substances such as hard fat or suitable mixtures thereof into conventional galenic preparations such as plain or coated tablets, capsules, powders, suspensions or suppositories.


Usual liquid or solid carrier materials are not only inorganic, but also organic carrier materials. Thus, for example, lactose, corn starch or derivatives thereof, talc, stearic acid or its salts may be used as carrier materials for tablets, coated tablets, dragees and hard gelatine capsules. Typical carrier materials for soft gelatine capsules are, for example, vegetable oils, waxes, fats and semi-solid and liquid polyols (depending on the nature of the active ingredient no carriers are, however, required in the case of soft gelatine capsules). Typical carrier materials for the production of solutions and syrups are, for example, water, polyols, sucrose, invert sugar and the like. Typical carrier materials for injection solutions are, for example, water, alcohols, polyols, glycerol and vegetable oils. Typical carrier materials for suppositories are, for example, natural or hardened oils, waxes, fats and semi-liquid or liquid polyols.


The pharmaceutical compositions according to this invention comprising the salts as defined herein are thus prepared by the skilled person using pharmaceutically acceptable formulation excipients as described in the art, such as e.g. those mentioned hereinabove and hereinbelow, of a type appropriate, e.g. to the desired formulation and to the desired mode of administration. The content of the active compound(s) is advantageously being from 0.1 to 95 wt % (weight percent of the final dosage form), particularly from 1 to 60 wt %. By means of the appropriate selection of the excipients, it is possible to obtain a pharmaceutical administration form adapted to the active ingredient(s) and/or to the desired onset and/or duration of action. Examples of such excipients include, without being restricted to, excipients commonly used for solid pharmaceutical forms (e.g. tablets), such as e.g. diluents, fillers, binders, carriers, lubricants, disintegrants, flow promoters, glidants and/or coating agents, excipients commonly used for liquid oral forms (e.g. syrups or elixirs), such as e.g. gel formers, wetting agents, antifoams, colorants, adsorbent agents, thickeners, flavorings and/or sweeteners, excipients commonly used for injection solutions or infusions, such as e.g. dispersants, emulsifiers, preservatives, solubilizers, buffer substances and/or isotonic adjusting substances, and other accessory excipients, such as e.g. stabilizers and/or solvents.


An embodiment of this invention refers to dosage forms for oral administration of the compounds of the invention. Tablets, coated tablets, dragees, pills, cachets, capsules, caplets, granules, solutions, emulsions and suspensions are e.g. suitable for oral administration. Solid oral dosage forms, such as e.g. capsules, tablets, pills, powders or granules, are hereby particularly concerned.


If desired, these formulations may also be adapted so as to represent, for example, an enteric form, an immediate release form, a delayed release form, a repeated dose release form, a prolonged release form or a sustained release form. Said forms can be obtained, for example, by coating tablets, by matrix techniques, by dividing tablets (e.g. their cores and/or coatings) into several compartments which may be separated by layers disintegrating under different conditions (e.g. pH conditions) or by coupling the compound of the invention to a biodegradable polymer.


In a certain embodiment, a compound of the invention is preferably in the form of a tablet. Such a tablet typically comprises the active ingredient(s) with one or more diluents, fillers and/or carriers, and, optionally, one or more binders, one or more lubricants, one or more disintegrants, and/or one or more glidants, as well as, if desired, a film overcoat.


Such a tablet may be obtained, for example, by mixing the active substance(s) with known excipients, for example which can be selected from those mentioned herein.


Coated tablets may be prepared by coating of cores (which may be produced analogously to the tablets) with substances normally used for tablet coatings (e.g. film-forming agents, plasticizers, glidants and/or pigments).


The tablet (including its core and coating) may also comprise several layers (e.g. mono-, bi- or trilayer), e.g. to achieve delayed release or to prevent incompatibilities.


Usually, in general as diluents/fillers one or more of mannitol, lactose, sucrose, maltodextrin, sorbitol, xylitol, powdered cellulose, microcrystalline cellulose, carboxymethylcellulose, carboxyethylcellulose, methylcellulose, ethylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, methylhydroxyethylcellulose, starch, sodium starch glycolate, pregelatinized starch, a calcium phosphate, a metal carbonate, a metal oxide or a metal aluminosilicate may come into consideration.


Usually, in general as binders one or more of polyvinylpyrrolidone, copovidone, hydroxypropylcellulose, hydroxypropylmethylcellulose, crosslinked poly(acrylic acid), gum arabic, gum acacia, gum tragacanath, lecithin, casein, polyvinyl alcohol, gelatin, kaolin, cellulose, methylcellulose, hydroxymethylcellulose, carboxymethylcellulose, carboxymethylcellulose calcium, carboxymethylcellulose sodium, hydroxypropylcellulose, hydroxypropylmethylcellulose phthalate, hydroxyethylcellulose, methylhydroxyethylcellulose, silicified microcrystalline cellulose, starch, maltodextrin, dextrins, microcrystalline cellulose or sorbitol may come into consideration.


Usually, in general as disintegrants one or more of croscarmellose sodium, carmellose calcium, crospovidone, alginic acid, sodium alginate, potassium alginate, calcium alginate, an ion exchange resin, an effervescent system based on food acids and an alkaline carbonate component, clay, talc, starch, pregelatinized starch, sodium starch glycolate, cellulose floe, carboxymethylcellulose, hydroxypropylcellulose, calcium silicate, a metal carbonate, sodium bicarbonate, calcium citrate or calcium phosphate may come into consideration.


Usually, in general as lubricants one or more of stearic acid, metallic stearate, sodium stearyl fumarate, fatty acid, fatty alcohol, fatty acid ester, glyceryl behenate, mineral oil, vegetable oil, paraffin, leucine, silica, silicic acid, talc, propylene glycol fatty acid ester, polyethylene glycol, polypropylene glycol, polyalkylene glycol or sodium chloride may come into consideration.


If desired, direct compression or granulation of the mixtures and/or components may be considered, which may be accomplished by conventional granulation techniques known to one of skill in the art. For example, dry granulation techniques include, but are not limited to, compression of the mixed powder under high pressure, either by roller compaction or “slugging” in a heavy-duty tablet press. Wet granulation techniques include, but are not limited to, high shear granulation, single-pot processing, top-spray granulation, bottom-spray granulation, fluidized spray granulation, extrusion/spheronization, and rotor granulation.


Examples of suitable diluents for compounds of this invention may include cellulose powder, calcium hydrogen phosphate, erythritol, low substituted hydroxypropyl cellulose, mannitol, pregelatinized starch or xylitol.


Examples of suitable lubricants for compounds of this invention may include talc, polyethyleneglycol, calcium behenate, calcium stearate, hydrogenated castor oil or magnesium stearate.


Examples of suitable binders for compounds of this invention may include copovidone (copolymerisates of vinylpyrrolidon with other vinylderivates), hydroxypropyl methylcellulose (HPMC), hydroxypropylcellulose (HPC), polyvinylpyrrolidon (povidone), pregelatinized starch, or low-substituted hydroxypropylcellulose (L-HPC).


Examples of suitable disintegrants for compounds of this invention may include corn starch or crospovidone.


Suitable methods of preparing pharmaceutical formulations of the compounds of this invention may be

    • direct tabletting of the active substance in powder mixtures with suitable tabletting excipients;
    • granulation with suitable excipients and subsequent mixing with suitable excipients and subsequent tabletting as well as film coating; or
    • packing of powder mixtures or granules into capsules.


Suitable granulation methods may be

    • wet granulation in the intensive mixer followed by fluidised bed drying;
    • one-pot granulation;
    • fluidised bed granulation; or
    • dry granulation (e.g. by roller compaction) with suitable excipients and subsequent tabletting or packing into capsules.


Particular formulations and their preparation are described in the patent application WO 2007/128724, the contents of which are incorporated herein in their entirety for all purposes.


Within the present invention, the dosage typically required when administered intravenously is 0.1 mg to 10 mg, preferably 0.25 mg to 5 mg, and when administered orally is 0.5 mg to 100 mg, preferably 2.5 mg to 50 mg or 0.5 mg to 10 mg, more preferably 2.5 mg to 10 mg or 1 mg to 5 mg, in each case 1 to 4 times a day, of active ingredient. Thus, e.g. the dosage of 1-[(4-methyl-quinazolin-2-yl)methyl]-3-methyl-7-(2-butyn-1-yl)-8-(3-(R)-amino-piperidin-1-yl)-xanthine when administered orally is 0.5 mg to 10 mg per patient per day, preferably 2.5 mg to 10 mg or 1 mg to 5 mg per patient per day.


A dosage form prepared with a pharmaceutical composition comprising a salt as mentioned herein contain the active ingredient in a dosage range of 0.1-100 mg. Thus, e.g. particular dosage strengths of 1-[(4-methyl-quinazolin-2-yl)methyl]-3-methyl-7-(2-butyn-1-yl)-8-(3-(R)-amino-piperidin-1-yl)-xanthine are 0.5 mg, 1 mg, 2.5 mg, 5 mg and 10 mg.


A special embodiment of this invention refers to those orally administered DPP-4 inhibitors which are therapeutically efficacious at low dose levels, e.g. at dose levels <100 mg or <70 mg per patient per day, preferably <50 mg, more preferably <30 mg or <20 mg, even more preferably from 1 mg to 10 mg, particularly from 1 mg to 5 mg (more particularly 5 mg) of active ingredient, per patient per day, preferentially, administered orally once-daily, more preferentially, at any time of day, administered with or without food.


For details on dosage forms, formulations and administration of active substances, particularly of those indicated herein, reference is made to respective scientific literature and/or published patent documents, particularly to those cited herein.


As different metabolic functional disorders often occur simultaneously, it is quite often indicated to combine a number of different active principles with one another. Thus, depending on the functional disorders diagnosed, improved treatment outcomes may be obtained if a DPP-4 inhibitor is combined with active substances customary for the respective disorders, such as e.g. one or more active substances selected from among the other antidiabetic substances, especially active substances that lower the blood sugar level or the lipid level in the blood, raise the HDL level in the blood, lower blood pressure or are indicated in the treatment of atherosclerosis or obesity.


The compounds of this invention—besides their use in mono-therapy—may also be used in conjunction with other active substances, by means of which improved treatment results can be obtained. Such a combined treatment may be given as a free combination of the substances or in the form of a fixed combination, for example in a tablet or capsule. Pharmaceutical formulations of the combination partner needed for this may either be obtained commercially as pharmaceutical compositions or may be formulated by the skilled man using conventional methods. The active substances which may be obtained commercially as pharmaceutical compositions are described in numerous places in the prior art, for example in the list of drugs that appears annually, the “Rote Liste®” of the federal association of the pharmaceutical industry, or in the annually updated compilation of manufacturers' information on prescription drugs known as the “Physicians' Desk Reference”.


Examples of antidiabetic combination partners are metformin; sulphonylureas such as glibenclamide, tolbutamide, glimepiride, glipizide, gliquidon, glibornuride and gliclazide; nateglinide; repaglinide; thiazolidinediones such as rosiglitazone and pioglitazone; PPAR gamma modulators such as metaglidases; PPAR-gamma agonists such as GI 262570; PPAR-gamma antagonists; PPAR-gamma/alpha modulators such as tesaglitazar, muraglitazar and KRP297; PPAR-gamma/alpha/delta modulators; AMPK-activators such as AICAR; acetyl-CoA carboxylase (ACC1 and ACC2) inhibitors; diacylglycerol-acetyltransferase (DGAT) inhibitors; pancreatic beta cell GCRP agonists such as SMT3-receptor-agonists and GPR119; 11β-HSD-inhibitors; FGF19 agonists or analogues; alpha-glucosidase blockers such as acarbose, voglibose and miglitol; alpha2-antagonists; insulin and insulin analogues such as human insulin, insulin lispro, insulin glusilin, r-DNA-insulinaspart, NPH insulin, insulin detemir, insulin zinc suspension and insulin glargin; Gastric inhibitory Peptide (GIP); pramlintide; amylin or GLP-1 and GLP-1 analogues such as Exendin-4; SGLT2-inhibitors such as KGT-1251; inhibitors of protein tyrosine-phosphatase; inhibitors of glucose-6-phosphatase; fructose-1,6-bisphosphatase modulators; glycogen phosphorylase modulators; glucagon receptor antagonists; phosphoenolpyruvatecarboxykinase (PEPCK) inhibitors; pyruvate dehydrogenasekinase (PDK) inhibitors; inhibitors of tyrosine-kinases (50 mg to 600 mg) such as PDGF-receptor-kinase (cf. EP-A-564409, WO 98/35958, U.S. Pat. No. 5,093,330, WO 2004/005281, and WO 2006/041976); glucokinase/regulatory protein modulators incl. glucokinase activators; glycogen synthase kinase inhibitors; inhibitors of the SH2-domain-containing inositol 5-phosphatase type 2 (SHIP2); IKK inhibitors such as high-dose salicylate; JNK1 inhibitors; protein kinase C-theta inhibitors; beta 3 agonists such as ritobegron, YM 178, solabegron, talibegron, N-5984, GRC-1087, rafabegron, FMP825; aldosereductase inhibitors such as AS 3201, zenarestat, fidarestat, epalrestat, ranirestat, NZ-314, CP-744809, and CT-112; SGLT-1 or SGLT-2 inhibitors; KV 1.3 channel inhibitors; GPR40 modulators; SCD-1 inhibitors; CCR-2 antagonists; and other DPP IV inhibitors.


Metformin is usually given in doses varying from about 500 mg to 2000 mg up to 2500 mg per day using various dosing regimens from about 100 mg to 500 mg or 200 mg to 850 mg (1-3 times a day), or about 300 mg to 1000 mg once or twice a day, or delayed-release metformin in doses of about 100 mg to 1000 mg or preferably 500 mg to 1000 mg once or twice a day or about 500 mg to 2000 mg once a day. Particular dosage strengths may be 250, 500, 625, 750, 850 and 1000 mg of metformin hydrochloride.


A dosage of pioglitazone is usually of about 1-10 mg, 15 mg, 30 mg, or 45 mg once a day, e.g. used as pioglitazone hydrochloride.


Glibenclamide (glyburide) is usually given in doses from 2.5 to 20 mg once (or twice) a day (typical dosage strengths are 1.25, 2.5 and 5 mg), or micronized glibenclamide in doses from 0.75 to 12 mg once a day (typical dosage strengths are 1.5, 3, 4.5 and 6 mg).


Glipizide is usually given in doses from 2.5 to 40 mg once (or twice) a day (typical dosage strengths are 5 and 10 mg), or extended-release glibenclamide in doses from 5 to 20 mg once a day (typical dosage strengths are 2.5, 5 and 10 mg).


Glimepiride is usually given in doses from 1 to 8 mg once a day (typical dosage strengths are 1, 2 and 4 mg).


A dual combination of glibenclamide/metformin is usually given in doses from 1.25/250 once daily to 10/1000 mg twice daily.


A dual combination of glipizide/metformin is usually given in doses from 2.5/250 to 10/1000 mg twice daily.


A dual combination of glimepiride/metformin is usually given in doses from 1/250 to 4/1000 mg twice daily.


A dual combination of rosiglitazone/glimepiride is usually given in doses from 4/1 once or twice daily to 4/2 mg twice daily.


A dual combination of pioglitazone/glimepiride is usually given in doses from 30/2 to 30/4 mg once daily.


A dual combination of rosiglitazone/metformin is usually given in doses from 1/500 to 4/1000 mg twice daily.


A dual combination of pioglitazone/metformin is usually given in doses from 15/500 once or twice daily to 15/850 mg thrice daily.


The non-sulphonylurea insulin secretagogue nateglinide is usually given in doses from 60 to 120 mg with meals; repaglinide is usually given in doses from 0.5 to 4 mg with meals.


Acarbose is usually given in doses from 25 to 100 mg with meals. Miglitol is usually given in doses from 25 to 100 mg with meals.


Examples of combination partners that lower the lipid level in the blood are HMG-CoA-reductase inhibitors such as simvastatin, atorvastatin, lovastatin, fluvastatin, pravastatin and rosuvastatin; fibrates such as bezafibrate, fenofibrate, clofibrate, gemfibrozil, etofibrate and etofyllinclofibrate; nicotinic acid and the derivatives thereof such as acipimox; PPAR-alpha agonists; PPAR-delta agonists; inhibitors of acyl-coenzyme A:cholesterolacyltransferase (ACAT; EC 2.3.1.26) such as avasimibe; cholesterol resorption inhibitors such as ezetimib; substances that bind to bile acid, such as cholestyramine, colestipol and colesevelam; inhibitors of bile acid transport; HDL modulating active substances such as D4F, reverse D4F, LXR modulating active substances and FXR modulating active substances; CETP inhibitors such as torcetrapib, JTT-705 or compound 12 from WO 2007/005572; LDL receptor modulators; and ApoB100 antisense RNA.


A dosage of atorvastatin is usually from 1 mg to 40 mg or 10 mg to 80 mg once a day


Examples of combination partners that lower blood pressure are beta-blockers such as atenolol, bisoprolol, celiprolol, metoprolol and carvedilol; diuretics such as hydrochlorothiazide, chlortalidon, xipamide, furosemide, piretanide, torasemide, spironolactone, eplerenone, amiloride and triamterene; calcium channel blockers such as amlodipine, nifedipine, nitrendipine, nisoldipine, nicardipine, felodipine, lacidipine, lercanipidine, manidipine, isradipine, nilvadipine, verapamil, gallopamil and diltiazem; ACE inhibitors such as ramipril, lisinopril, cilazapril, quinapril, captopril, enalapril, benazepril, perindopril, fosinopril and trandolapril; as well as angiotensin II receptor blockers (ARBs) such as telmisartan, candesartan, valsartan, losartan, irbesartan, olmesartan and eprosartan.


A dosage of telmisartan is usually from 20 mg to 320 mg or 40 mg to 160 mg per day.


Examples of combination partners which increase the HDL level in the blood are Cholesteryl Ester Transfer Protein (CETP) inhibitors; inhibitors of endothelial lipase; regulators of ABC1; LXRalpha antagonists; LXRbeta agonists; PPAR-delta agonists; LXRalpha/beta regulators, and substances that increase the expression and/or plasma concentration of apolipoprotein A-I.


Examples of combination partners for the treatment of obesity are sibutramine; tetrahydrolipstatin (orlistat); alizyme; dexfenfluramine; axokine; cannabinoid receptor 1 antagonists such as the CB1 antagonist rimonobant; MCH-1 receptor antagonists; MC4 receptor agonists; NPY5 as well as NPY2 antagonists; beta3-AR agonists such as SB-418790 and AD-9677; 5HT2c receptor agonists such as APD 356; myostatin inhibitors; Acrp30 and adiponectin; steroyl CoA desaturase (SCD1) inhibitors; fatty acid synthase (FAS) inhibitors; CCK receptor agonists; Ghrelin receptor modulators; Pyy 3-36; orexin receptor antagonists; and tesofensine.


Examples of combination partners for the treatment of atherosclerosis are phospholipase A2 inhibitors; inhibitors of tyrosine-kinases (50 mg to 600 mg) such as PDGF-receptor-kinase (cf. EP-A-564409, WO 98/35958, U.S. Pat. No. 5,093,330, WO 2004/005281, and WO 2006/041976); oxLDL antibodies and oxLDL vaccines; apoA-1 Milano; ASA; and VCAM-1 inhibitors.


It is to be understood that the other active substances mentioned herein as combination partners of the salts of this invention also comprise their pharmaceutically acceptable salts as well as hydrates, solvates and polymorphic forms thereof.


The present invention is not to be limited in scope by the specific embodiments described herein. Various modifications of the invention in addition to those described herein may become apparent to those skilled in the art from the present disclosure. Such modifications are intended to fall within the scope of the appended claims.


For avoidance of any doubt, the disclosure of each of the documents and patent applications cited herein is specifically incorporated herein by reference in its entirety.


Further embodiments, features and advantages of the present invention may become apparent from the following examples. The following examples serve to illustrate, by way of example, the principles of the invention without restricting it.


EXAMPLES
Synthesis/Preparation

0.5 g of the free base of BI 1356 are suspended at room temperature in 4 ml of EtOH. The suspension is heated under reflux until a clear solution is obtained which typically is obtained after a few minutes. 1 mol equivalent of the respective acid (see Table 1), either dissolved in EtOH or water is added to the hot solution of BI 1356. Afterwards heating is removed and the solution is slowly cooled down and stored over night at room temperature. In case precipitation is observed, the obtained crystals are removed by filtering and afterwards dried over night at ambient conditions. In case no precipitation was observed the solution is evaporated partially (by approx. 50%) and than stored for another night in the refrigerator (4° C.). Precipitated crystals are also removed by filtering and afterwards dried over night at ambient conditions. The obtained crystals are analysed by polarized light microscopy, X-ray powder diffraction and thermal analysis.


Used Equipment for X-Ray Powder Diffraction Measurements:


STOE Stadi P X-ray powder diffractometer with a position sensitive detector working in transmission mode with a curved Germanium (111) primary monochromator; used wavelength: CuKαI mit λ=1.540598 Å; power settings of X-ray tube: 40 kV, 40 mA; 2 custom character-range: 3-40°


For indexing of the X-ray powder patterns where single crystal structure data is available the program TREOR was used which is part of the STOE Stadi P software package. Tables 2-13 show the characteristic X-ray peaks including normalised intensities up to 30° in 2 custom character. The respective XRPD-diagrams are shown in FIGS. 1-12 in the appendix.


Used Equipment for Thermoanalysis:


A DSC 822 from Fa. Mettler Toldeo was used. The following standard parameters were applied: heating rate: 10 K/min; crucible type: pin-holed aluminium crucible; atmosphere: N2, 80 ml/min flow rate; typical weight-in quantities: 3-10 mg.


A TGA/SDTA 851 from Mettler Toledo coupled with a Nicolet FT-IR 4700 spectrometer was used (for analysis of volatile material). The following standard parameters were applied: heating rate: 10 K/min; crucible type: open aluminium oxide crucible; atmosphere: N2, 20 ml/min flow rate; typical weight-in quantities: 15-25 mg.


The melting point (=Tfus) measured by DSC is given in Table 1.









TABLE 1







Salt formation of BI 1356











stoichi-




salt form
ometry
thermal analysis


(used acid)
base:c.i.
(m.p.)
XRPD-data





besylate
1:1
Tfus: ca. 175° C.
see Tab. 2


(benzenesulfonic acid)


& FIG. 1


bromide
1:1
Tfus: ca. 175° C.
see Tab. 3


(hydrobromic acid)


& FIG. 2


benzoate
1:1
Tfus: ca. 155° C.
see Tab. 4


(benzoic acid)


& FIG. 3


esylate
1:1
Tfus: ca. 190° C.
see Tab. 5


(ethanesulfonic acid)


& FIG. 4


fumarate
1:1
Tfus: ca. 225° C.
see Tab. 6


(fumaric acid)


& FIG. 5


mesylate
1:1
Tfus: ca. 160° C.
see Tab. 7


(methanesulfonic acid)


& FIG. 6


salicylate
1:1
Tfus: ca. 165° C.
see Tab. 8


(salicylic acid)


& FIG. 7


tosylate
1:1
Tfus: ca. 160° C.
see Tab. 9


(p-toluenesulfonic acid)


& FIG. 8


chloride
1:1
Tfus: ca. 175° C.
see Tab. 10


(hydrochloric acid)


& FIG. 9


glyoclate
1:1
Tfus: ca. 165° C.
see Tab. 11


(glycolic acid)


& FIG. 10


malonate
1:1
Tfus: ca. 100° C.
see Tab. 12


(malonic acid)


& FIG. 11


gentisate
1:1
Tfus: ca. 170° C.
see Tab. 13


(2,5-dihydroxybenzoic


& FIG. 12


acid)
















TABLE 2







X-ray diffraction peaks (up to 30° 2 Θ) including


normalised intensities of the besylate salt of BI 1356









2 Θ
dhkl



[°]
[Å]
I/Io












3.95
22.37
41


7.35
12.02
12


7.86
11.24
37


9.73
9.09
67


10.95
8.07
15


11.95
7.40
100


13.18
6.71
14


14.71
6.02
16


15.12
5.85
46


15.49
5.71
50


17.38
5.10
16


18.25
4.86
26


19.01
4.66
81


19.95
4.45
19


21.49
4.13
27


22.59
3.93
52


23.15
3.84
25


24.16
3.68
16


25.71
3.46
22


26.60
3.35
14


27.32
3.26
15


28.44
3.14
6


29.60
3.02
6
















TABLE 3







X-ray diffraction peaks (up to 30° 2 Θ) including


normalised intensities of the bromide salt of BI 1356









2 Θ
dhkl



[°]
[Å]
I/Io












4.14
21.31
29


8.31
10.63
36


9.53
9.27
100


10.43
8.48
31


11.62
7.61
49


11.83
7.47
32


12.58
7.03
58


13.31
6.64
9


14.45
6.13
24


15.03
5.89
42


15.67
5.65
23


16.66
5.32
41


17.23
5.14
34


19.17
4.63
41


19.57
4.53
23


19.80
4.48
88


20.84
4.26
27


21.43
4.14
20


21.82
4.07
83


22.19
4.00
56


22.75
3.91
48


23.57
3.77
33


23.84
3.73
27


24.10
3.69
19


24.67
3.61
17


25.32
3.51
84


27.51
3.24
23


27.78
3.21
29


29.17
3.06
26
















TABLE 4







X-ray diffraction peaks (up to 30° 2 Θ) including


normalised intensities of the benzoate salt of BI 1356









2 Θ
dhkl



[°]
[Å]
I/Io












3.91
22.56
88


7.82
11.30
6


9.75
9.06
100


10.84
8.16
11


11.38
7.77
19


11.76
7.52
59


12.26
7.22
22


13.04
6.78
6


14.76
6.00
11


15.29
5.79
12


15.94
5.56
25


16.35
5.42
25


16.95
5.23
28


18.17
4.88
25


18.86
4.70
71


19.28
4.60
7


19.60
4.53
8


20.32
4.37
12


21.49
4.13
19


21.76
4.08
11


22.07
4.02
6


22.40
3.97
23


23.23
3.83
8


23.76
3.74
47


24.34
3.65
10


24.64
3.61
21


25.22
3.53
3


25.90
3.44
15


26.07
3.42
13


26.85
3.32
6


27.43
3.25
14


28.02
3.18
5


28.52
3.13
10


28.87
3.09
4


29.84
2.99
8
















TABLE 5







X-ray diffraction peaks (up to 30° 2 Θ) including


normalised intensities of the esylate salt of BI 1356









2 Θ
dhkl



[°]
[Å]
I/Io












4.06
21.75
46


8.12
10.87
30


9.70
9.11
100


10.74
8.23
24


11.51
7.68
40


11.83
7.48
69


12.35
7.16
10


12.59
7.03
8


14.52
6.09
17


15.17
5.83
46


16.07
5.51
15


16.32
5.43
44


16.79
5.28
26


18.15
4.88
18


18.47
4.80
23


18.78
4.72
21


19.56
4.53
60


20.37
4.36
23


21.45
4.14
32


21.64
4.10
28


22.41
3.96
53


23.35
3.81
10


24.19
3.68
9


24.76
3.59
24


24.98
3.56
25


25.30
3.52
8


25.99
3.43
5


26.83
3.32
17


27.08
3.29
12


28.10
3.17
10


29.32
3.04
5
















TABLE 6







X-ray diffraction peaks (up to 30° 2 Θ) including


normalised intensities of the fumarate salt of BI 1356









2 Θ
dhkl



[°]
[Å]
I/Io












4.23
20.86
36


6.06
14.58
15


8.24
10.72
100


9.92
8.91
34


10.82
8.17
21


11.69
7.56
28


12.26
7.22
70


12.43
7.12
39


12.89
6.86
43


13.70
6.46
36


13.87
6.38
15


14.50
6.10
13


15.19
5.83
17


15.98
5.54
39


16.67
5.31
25


18.75
4.73
37


20.16
4.40
13


20.30
4.37
20


20.58
4.31
32


20.93
4.24
24


21.25
4.18
20


21.93
4.05
40


22.57
3.94
24


23.47
3.79
21


23.71
3.75
30


24.09
3.69
28


24.42
3.64
46


25.04
3.55
22


25.67
3.47
19


25.90
3.44
7


26.62
3.35
14


26.94
3.31
16


27.22
3.27
25


27.50
3.24
25


29.19
3.06
7
















TABLE 7







X-ray diffraction peaks (up to 30° 2 Θ) including


normalised intensities of the mesylate salt of BI 1356









2 Θ
dhkl



[°]
[Å]
I/Io












4.15
21.29
71


8.29
10.66
83


9.59
9.22
93


10.59
8.35
12


11.56
7.65
66


11.80
7.49
70


12.42
7.12
39


12.57
7.03
56


14.45
6.12
17


14.91
5.94
25


15.16
5.84
31


15.40
5.75
72


16.05
5.52
26


16.47
5.38
80


17.03
5.20
35


17.32
5.12
19


18.02
4.92
15


18.38
4.82
15


18.83
4.71
27


19.58
4.53
98


19.87
4.46
27


20.14
4.41
14


20.61
4.31
46


21.61
4.11
75


22.15
4.01
20


22.51
3.95
100


23.38
3.80
22


23.72
3.75
15


23.96
3.71
20


24.16
3.68
14


25.02
3.56
93


25.29
3.52
25


26.60
3.35
27


27.01
3.30
17


27.60
3.23
16


28.15
3.17
20


29.20
3.06
11
















TABLE 8







X-ray diffraction peaks (up to 30° 2 Θ) including


normalised intensities of salicylate salt of BI 1356









2 Θ
dhkl



[°]
[Å]
I/Io












3.91
22.61
100


7.79
11.33
6


9.85
8.97
69


11.15
7.93
12


11.74
7.53
59


12.12
7.30
12


12.86
6.88
7


14.77
5.99
8


15.08
5.87
11


15.32
5.78
14


15.69
5.64
23


15.98
5.54
12


16.42
5.39
16


17.05
5.20
10


18.27
4.85
20


18.74
4.73
23


18.92
4.69
34


19.95
4.45
18


20.32
4.37
7


21.41
4.15
12


21.96
4.04
9


22.46
3.96
8


23.10
3.85
8


23.52
3.78
62


24.34
3.65
11


25.16
3.54
6


25.87
3.44
9


26.69
3.34
7


27.50
3.24
10


28.85
3.09
4


29.69
3.01
3


30.28
2.95
10
















TABLE 9







X-ray diffraction peaks (up to 30° 2 Θ) including


normalised intensities of tosylate salt of BI 1356









2 Θ
dhkl



[°]
[Å]
I/Io












3.79
23.32
25


7.58
11.66
10


7.74
11.42
14


10.05
8.79
18


11.20
7.89
27


11.96
7.39
100


12.42
7.12
33


12.79
6.92
16


13.34
6.63
7


14.34
6.17
39


15.47
5.72
16


15.99
5.54
23


16.46
5.38
13


17.55
5.05
8


18.47
4.80
12


18.85
4.70
20


20.05
4.42
50


21.22
4.18
43


21.61
4.11
19


22.14
4.01
59


22.79
3.90
10


23.42
3.80
10


24.03
3.70
29


24.55
3.62
24


26.62
3.35
16


27.62
3.23
15
















TABLE 10







Indexed X-ray diffraction peaks (up to 30° 2 Θ) including normalised


intensities of the tetrahydrate of the hydrochloride of BI 1356











2 Θ
dhkl

Indexing
2 Θobs − 2 Θcalc













[°]
[Å]
I/Io
h
k
l
[°]
















4.52
19.55
43
0
0
1
0.002


9.86
8.97
100
2
0
0
−0.002


10.56
8.37
7
−2
0
1
0.001


11.60
7.62
70
0
1
1
0.011


11.77
7.52
64
1
1
0
0.005


12.49
7.08
92
−1
1
1
0.006


12.72
6.95
13
1
1
1
−0.005


13.83
6.40
58
2
0
2
−0.007


15.04
5.89
56
−2
1
1
0.005


15.43
5.74
41
2
1
1
−0.006


16.78
5.28
6
−2
1
2
−0.009


17.50
5.06
42
2
1
2
−0.006


18.28
4.85
6
1
1
3
0.028


19.08
4.65
47
3
1
1
−0.008


19.47
4.56
17
−3
0
3
0.036


20.00
4.44
27
−3
1
2
0.029


20.61
4.31
8
4
0
1
−0.002


20.90
4.25
16
3
1
2
0.017


21.44
4.14
29
0
2
0
−0.003


22.01
4.04
49
1
2
0
−0.003


22.37
3.97
96
4
0
2
0.013


22.78
3.90
16
−2
1
4
−0.002


23.44
3.79
35
3
1
3
−0.010


23.95
3.71
12
−2
2
1
−0.010


24.22
3.67
10
2
2
1
<0.001


24.82
3.58
61
5
0
0
0.017


25.12
3.54
78
−2
2
2
0.004


25.64
3.47
27
2
2
2
0.033


26.13
3.41
7
1
2
3
0.004


26.38
3.38
18
−3
0
5
0.040


27.38
3.25
20
−3
2
2
0.001


27.75
3.21
25
5
1
1
<0.001


28.47
3.13
22
−1
2
4
0.036


29.14
3.06
16
5
1
2
−0.006


29.49
3.03
20
−4
2
1
0.008





Indexing is possible with a monoclinic cell, space group P21, with the following lattice parameters: a = 17.974(4) Å, b = 8.282(3) Å, c = 19.607(6), β = 93.9(2)°, V = 2912(2) Å3. All 35 peaks can be indexed with a figure of merit of 42.1













TABLE 11







X-ray diffraction peaks (up to 30° 2 Θ) including


normalised intensities of glycolate salt of BI 1356









2 Θ
dhkl



[°]
[Å]
I/Io












3.16
27.94
18


5.54
15.95
4


6.35
13.90
100


8.41
10.51
31


9.55
9.25
15


11.05
8.00
5


11.48
7.70
26


13.88
6.37
13


15.94
5.56
14


17.81
4.98
2


18.11
4.90
2


18.96
4.68
4


19.45
4.56
4


19.95
4.45
10


21.01
4.22
29


21.97
4.04
3


22.67
3.92
26


23.12
3.84
14


24.01
3.70
2


24.63
3.61
2


25.27
3.52
7


26.49
3.36
8


26.88
3.31
13


27.65
3.22
7


28.75
3.10
1


29.44
3.03
2


30.21
2.96
1
















TABLE 12







X-ray diffraction peaks (up to 30° 2 Θ) including


normalised intensities of malonate salt of BI 1356









2 Θ
dhkl



[°]
[Å]
I/Io












4.14
21.34
62


7.96
11.10
11


8.30
10.65
40


9.67
9.14
51


10.14
8.72
5


10.39
8.50
10


11.48
7.70
39


11.76
7.52
35


11.97
7.39
15


12.52
7.06
100


13.54
6.53
5


14.45
6.12
11


14.97
5.91
19


15.10
5.86
16


15.52
5.71
35


16.07
5.51
4


16.50
5.37
54


17.01
5.21
14


17.28
5.13
19


18.07
4.91
17


18.44
4.81
31


18.67
4.75
13


18.95
4.68
11


19.32
4.59
20


19.70
4.50
60


19.98
4.44
13


20.55
4.32
23


20.86
4.25
14


21.50
4.13
33


21.73
4.09
38


22.37
3.97
33


22.75
3.91
71


23.51
3.78
31


24.00
3.70
21


25.19
3.53
57


25.89
3.44
10


26.45
3.37
8


26.87
3.32
17


27.53
3.24
16


28.14
3.17
13


28.75
3.10
4


29.22
3.05
11


29.46
3.03
11
















TABLE 13







X-ray diffraction peaks (up to 30° 2 Θ) including


normalised intensities of gentisate salt of BI 1356









2 Θ
dhkl



[°]
[Å]
I/Io












4.06
21.73
100


9.69
9.12
90


10.83
8.16
11


11.30
7.83
75


11.72
7.55
85


13.15
6.73
12


14.34
6.17
20


14.70
6.02
31


15.14
5.85
21


15.70
5.64
11


16.15
5.48
35


16.50
5.37
8


16.89
5.24
15


18.02
4.92
7


18.71
4.74
6


19.08
4.65
25


19.41
4.57
64


21.15
4.20
23


21.37
4.16
18


21.80
4.07
11


22.33
3.98
7


22.72
3.91
10


23.21
3.83
26


23.85
3.73
81


24.20
3.67
30


24.51
3.63
16


24.92
3.57
18


25.79
3.45
18


25.99
3.43
13


26.27
3.39
9


26.81
3.32
8


27.32
3.26
9


27.84
3.20
5


28.62
3.12
5


29.27
3.05
8


29.61
3.01
8


29.96
2.98
9








Claims
  • 1. A salt of 1-[(4-methyl-quinazolin-2-yl)methyl]-3-methyl-7-(2-butyn-1-yl)-8-(3-(R)-amino-piperidin-1-yl)-xanthine and a pharmaceutically acceptable acid in a 1:1 stoichiometry in the form of an organic solvate, hydrate, or mixed hydrate/organic solvate thereof.
  • 2. An acid addition salt of 1-[(4-methyl-quinazolin-2-yl)-methyl]-3-methyl-7-(2-butyn-1-yl)-8-(3-(R)-amino-piperidin-1-yl)-xanthine with an acid selected from hydrochloric acid, hydrobromic acid, phosphoric acid, nitric acid, sulfuric acid, acetic acid, 2,2-dichloroacetic acid, adipic acid, D-ascorbic acid, L-ascorbic acid, D-aspartic acid, L-aspartic acid, benzenesulfonic acid, benzoic acid, 4-acetamido-benzoic acid, (+)-camphoric acid, (−)-camphoric acid, (+)-camphor-10-sulfonic, (−)-camphor-10-sulfonic, capric acid (decanoic acid), caproic acid (hexanoic acid), caprylic acid (octanoic acid), carbonic acid, cinnamic acid, citric acid, cyclamic acid, dodecylsulfuric acid, ethane-1,2-disulfonic acid, ethanesulfonic acid, 2-hydroxy-ethanesulfonic acid, formic acid, fumaric acid, galactaric acid, gentisic acid, D-glucoheptonic acid, L-glucoheptonic acid, D-gluconic acid, L-gluconic acid; D-glucuronic acid, L-glucuronic acid, glutamic acid, glutaric acid, 2-oxo-glutaric acid, glycerophosphoric acid, glycolic acid, hippuric acid, isobutyric acid, D-lactic acid, L-lactic acid, lactobionic acid, lauric acid, maleic acid, D-malic acid, L-malic acid, malonic acid, D-mandelic acid, L-mandelic acid, methanesulfonic acid, naphthalene-1,5-disulfonic acid, naphthalene-2-sulfonic acid, 1-hydroxy-2-naphthoic acid, nicotinic acid, oleic acid, orotic acid, oxalic acid, palmitic acid, pamoic acid (embonic acid), propionic acid, D-pyroglutamic acid, L-pyroglutamic acid, salicyclic acid, 4-aminosalicyclic acid, sebacic acid, stearic acid, succinic acid, D-tartaric acid, L-tartaric acid, thiocyanic acid, p-toluenesulfonic acid and undecylenic acid, in the form of an organic solvate, hydrate, or mixed hydrate/organic solvate thereof.
  • 3. The salt according to claim 2, which is selected from the group consisting of a besylate salt, a hydrobromide salt, a benzoate salt, an esylate salt, a fumarate salt, a mesylate salt, a salicylate salt, a tosylate salt, a hydrochloride salt, a glycolate salt, a malonate salt and a gentisate salt.
  • 4. The salt according to claim 2, in the form of a solvate.
  • 5. The salt according to claim 2, in the form of an organic solvate.
  • 6. The salt according to claim 2, in the form of a hydrate.
  • 7. The salt according to claim 2, in the form of a mixed hydrate/organic solvate.
  • 8. The salt according to claim 2, in crystalline, partially crystalline, amorphous or polymorphous form.
  • 9. A pharmaceutical composition comprising a salt according to claim 1, optionally together with one or more pharmaceutically acceptable carriers and/or diluents.
  • 10. The pharmaceutical composition according to claim 9, further comprising one or more other active substances.
Priority Claims (1)
Number Date Country Kind
08172785 Dec 2008 EP regional
PCT Information
Filing Document Filing Date Country Kind 371c Date
PCT/EP2009/067772 12/22/2009 WO 00 9/27/2011
Publishing Document Publishing Date Country Kind
WO2010/072776 7/1/2010 WO A
US Referenced Citations (266)
Number Name Date Kind
2056046 Fourneau Sep 1936 A
2375138 Salvin May 1945 A
2629736 Krimmel Feb 1953 A
2730544 Sahyun Jan 1956 A
2750387 Krimmel Jun 1956 A
2928833 Leake et al. Mar 1960 A
3174901 Sterne Mar 1965 A
3236891 Seemuller Feb 1966 A
3454635 Muth Jul 1969 A
3673241 Marxer Jun 1972 A
3925357 Okada et al. Dec 1975 A
4005208 Bender et al. Jan 1977 A
4061753 Bodor et al. Dec 1977 A
4382091 Benjamin et al. May 1983 A
4599338 Regnier et al. Jul 1986 A
4639436 Junge et al. Jan 1987 A
4687777 Meguro et al. Aug 1987 A
4743450 Harris et al. May 1988 A
4816455 Schickaneder et al. Mar 1989 A
4873330 Lindholm Oct 1989 A
4968672 Jacobson et al. Nov 1990 A
5041448 Janssens et al. Aug 1991 A
5051517 Findeisen et al. Sep 1991 A
5084460 Munson, Jr. et al. Jan 1992 A
5130244 Nishimaki et al. Jul 1992 A
5219870 Kim Jun 1993 A
5223499 Greenlee et al. Jun 1993 A
5234897 Findeisen et al. Aug 1993 A
5258380 Janssens et al. Nov 1993 A
5266555 Findeisen et al. Nov 1993 A
5273995 Roth Dec 1993 A
5284967 Macher Feb 1994 A
5300298 LaNoue Apr 1994 A
5329025 Wong et al. Jul 1994 A
5332744 Chakravarty et al. Jul 1994 A
5389642 Dorsch et al. Feb 1995 A
5399578 Buhlmayer et al. Mar 1995 A
5407929 Takahashi et al. Apr 1995 A
5470579 Bonte et al. Nov 1995 A
5591762 Hauel et al. Jan 1997 A
5594003 Hauel et al. Jan 1997 A
5602127 Hauel et al. Feb 1997 A
5614519 Hauel et al. Mar 1997 A
5719279 Kufner-Muhl et al. Feb 1998 A
5728849 Bouchard et al. Mar 1998 A
5753635 Buckman et al. May 1998 A
5830908 Grunenberg et al. Nov 1998 A
5879708 Makino et al. Mar 1999 A
5958951 Ahrndt et al. Sep 1999 A
5965555 Gebert et al. Oct 1999 A
5965592 Buhlmayer et al. Oct 1999 A
6011049 Whitcomb Jan 2000 A
6107302 Carter et al. Aug 2000 A
6166063 Villhauer Dec 2000 A
6248758 Klokkers et al. Jun 2001 B1
6303661 Demuth et al. Oct 2001 B1
6342601 Bantick et al. Jan 2002 B1
6372940 Cavazza Apr 2002 B1
6548481 Demuth et al. Apr 2003 B1
6579868 Asano et al. Jun 2003 B1
6727261 Gobbi et al. Apr 2004 B2
6784195 Hale et al. Aug 2004 B2
6821978 Chackalamannil et al. Nov 2004 B2
6869947 Kanstrup et al. Mar 2005 B2
6995183 Hamann et al. Feb 2006 B2
7060722 Kitajima et al. Jun 2006 B2
7074794 Kitajima et al. Jul 2006 B2
7074798 Yoshikawa et al. Jul 2006 B2
7074923 Dahanukar et al. Jul 2006 B2
7109192 Hauel et al. Sep 2006 B2
7179809 Eckhardt et al. Feb 2007 B2
7183280 Himmelsbach et al. Feb 2007 B2
7192952 Kanstrup et al. Mar 2007 B2
7217711 Eckhardt et al. May 2007 B2
7235538 Kanstrup et al. Jun 2007 B2
7247478 Eberhardt et al. Jul 2007 B2
7291642 Kauffmann-Hefner et al. Nov 2007 B2
7361687 Barth et al. Apr 2008 B2
7393847 Eckhardt et al. Jul 2008 B2
7407955 Himmelsbach et al. Aug 2008 B2
7407995 Ok et al. Aug 2008 B2
7432262 Eckhardt et al. Oct 2008 B2
7439370 Eckhardt Oct 2008 B2
7470716 Eckhardt et al. Dec 2008 B2
7476671 Eckhardt et al. Jan 2009 B2
7482337 Himmelsbach et al. Jan 2009 B2
7495002 Langkopf et al. Feb 2009 B2
7495003 Eckhardt et al. Feb 2009 B2
7495005 Himmelsbach et al. Feb 2009 B2
7501426 Himmelsbach et al. Mar 2009 B2
7550455 Himmelsbach et al. Jun 2009 B2
7560450 Eckhardt et al. Jul 2009 B2
7566707 Eckhardt et al. Jul 2009 B2
7569574 Maier et al. Aug 2009 B2
7579449 Eckhardt et al. Aug 2009 B2
7610153 Carter, Jr. et al. Oct 2009 B2
7645763 Himmelsbach et al. Jan 2010 B2
7718666 Boehringer et al. May 2010 B2
7799782 Munson et al. Sep 2010 B2
7820815 Pfrengle et al. Oct 2010 B2
7838529 Himmelsbach et al. Nov 2010 B2
8039477 Hendrix et al. Oct 2011 B2
8071583 Himmelsbach Dec 2011 B2
8106060 Pfrengle et al. Jan 2012 B2
8119648 Himmelsbach et al. Feb 2012 B2
8158633 Hendrix et al. Apr 2012 B2
8178541 Himmelsbach et al. May 2012 B2
8232281 Dugi et al. Jul 2012 B2
20010020006 Demuth et al. Sep 2001 A1
20010051646 Demuth et al. Dec 2001 A1
20020019411 Robl et al. Feb 2002 A1
20020137903 Ellsworth et al. Sep 2002 A1
20020161001 Kanstrup et al. Oct 2002 A1
20020169174 Chackalamannil et al. Nov 2002 A1
20020198205 Himmelsbach et al. Dec 2002 A1
20030078269 Pearson et al. Apr 2003 A1
20030100563 Edmondson et al. May 2003 A1
20030105077 Kanstrup et al. Jun 2003 A1
20030114390 Washburn et al. Jun 2003 A1
20030130313 Fujino et al. Jul 2003 A1
20030149071 Gobbi et al. Aug 2003 A1
20030166578 Arch et al. Sep 2003 A1
20030199528 Kanstrup et al. Oct 2003 A1
20030224043 Appel et al. Dec 2003 A1
20030232987 Dahanukar et al. Dec 2003 A1
20030236272 Carr Dec 2003 A1
20040023981 Ren et al. Feb 2004 A1
20040034014 Kanstrup et al. Feb 2004 A1
20040063725 Barth et al. Apr 2004 A1
20040077645 Himmelsbach et al. Apr 2004 A1
20040082570 Yoshikawa et al. Apr 2004 A1
20040087587 Himmelsbach et al. May 2004 A1
20040097510 Himmelsbach et al. May 2004 A1
20040116328 Yoshikawa et al. Jun 2004 A1
20040122048 Benjamin et al. Jun 2004 A1
20040122228 Maier et al. Jun 2004 A1
20040126358 Warne et al. Jul 2004 A1
20040138214 Himmelsbach et al. Jul 2004 A1
20040138215 Eckhardt et al. Jul 2004 A1
20040166125 Himmelsbach et al. Aug 2004 A1
20040171836 Fujino et al. Sep 2004 A1
20040180925 Matsuno et al. Sep 2004 A1
20040259903 Boehringer et al. Dec 2004 A1
20050020574 Hauel et al. Jan 2005 A1
20050026921 Eckhardt et al. Feb 2005 A1
20050032804 Cypes et al. Feb 2005 A1
20050065145 Cao et al. Mar 2005 A1
20050070562 Jones et al. Mar 2005 A1
20050070594 Kauschke et al. Mar 2005 A1
20050130985 Himmelsbach et al. Jun 2005 A1
20050143377 Himmelsbach et al. Jun 2005 A1
20050171093 Eckhardt et al. Aug 2005 A1
20050187227 Himmelsbach et al. Aug 2005 A1
20050203095 Eckhardt et al. Sep 2005 A1
20050234108 Himmelsbach et al. Oct 2005 A1
20050234235 Eckhardt et al. Oct 2005 A1
20050239778 Konetzki et al. Oct 2005 A1
20050256310 Hulin et al. Nov 2005 A1
20050261271 Feng et al. Nov 2005 A1
20050261352 Eckhardt Nov 2005 A1
20050266080 Desai et al. Dec 2005 A1
20050276794 Papas et al. Dec 2005 A1
20060004074 Eckhardt et al. Jan 2006 A1
20060034922 Cheng et al. Feb 2006 A1
20060039974 Akiyama et al. Feb 2006 A1
20060047125 Leonardi et al. Mar 2006 A1
20060058323 Eckhardt et al. Mar 2006 A1
20060063787 Yoshikawa et al. Mar 2006 A1
20060074058 Holmes et al. Apr 2006 A1
20060079541 Langkopf et al. Apr 2006 A1
20060094722 Yasuda et al. May 2006 A1
20060100199 Yoshikawa et al. May 2006 A1
20060106035 Hendrix et al. May 2006 A1
20060111372 Hendrix et al. May 2006 A1
20060111379 Guillemont et al. May 2006 A1
20060134206 Iyer et al. Jun 2006 A1
20060142310 Pfrengle et al. Jun 2006 A1
20060154866 Chu et al. Jul 2006 A1
20060159746 Troup et al. Jul 2006 A1
20060173056 Kitajima et al. Aug 2006 A1
20060205711 Himmelsbach et al. Sep 2006 A1
20060205943 Dahanukar et al. Sep 2006 A1
20060247226 Himmelsbach et al. Nov 2006 A1
20060270668 Chew et al. Nov 2006 A1
20060270701 Kroth et al. Nov 2006 A1
20070027168 Pfrengle et al. Feb 2007 A1
20070060530 Christopher et al. Mar 2007 A1
20070072803 Chu et al. Mar 2007 A1
20070072810 Asakawa Mar 2007 A1
20070088038 Eckhardt et al. Apr 2007 A1
20070093659 Bonfanti et al. Apr 2007 A1
20070142383 Eckhardt et al. Jun 2007 A1
20070185091 Himmelsbach et al. Aug 2007 A1
20070196472 Kiel et al. Aug 2007 A1
20070197522 Edwards et al. Aug 2007 A1
20070219178 Muramoto Sep 2007 A1
20070259900 Sieger et al. Nov 2007 A1
20070259925 Boehringer et al. Nov 2007 A1
20070259927 Suzuki et al. Nov 2007 A1
20070281940 Dugi et al. Dec 2007 A1
20070299076 Piotrowski et al. Dec 2007 A1
20080039427 Ray et al. Feb 2008 A1
20080107731 Kohlrausch et al. May 2008 A1
20080108816 Zutter May 2008 A1
20080249089 Himmelsbach et al. Oct 2008 A1
20080255159 Himmelsbach et al. Oct 2008 A1
20080312243 Eckhardt et al. Dec 2008 A1
20080318922 Nakahira et al. Dec 2008 A1
20090023920 Eckhardt Jan 2009 A1
20090088408 Meade et al. Apr 2009 A1
20090088569 Eckhardt et al. Apr 2009 A1
20090093457 Himmelsbach et al. Apr 2009 A1
20090131432 Himmelsbach et al. May 2009 A1
20090136596 Munson et al. May 2009 A1
20090137801 Himmelsbach et al. May 2009 A1
20090149483 Nakahira et al. Jun 2009 A1
20090186086 Shankar et al. Jul 2009 A1
20090192314 Pfrengle et al. Jul 2009 A1
20090297470 Franz Dec 2009 A1
20090301105 Loerting Dec 2009 A1
20090325926 Himmelsbach Dec 2009 A1
20100074950 Sesha Mar 2010 A1
20100092551 Nakamura et al. Apr 2010 A1
20100173916 Himmelsbach et al. Jul 2010 A1
20100179191 Himmelsbach et al. Jul 2010 A1
20100183531 Johncock et al. Jul 2010 A1
20100204250 Himmelsbach et al. Aug 2010 A1
20100209506 Eisenreich Aug 2010 A1
20100310664 Watson et al. Dec 2010 A1
20110009391 Braun et al. Jan 2011 A1
20110046076 Eickelmann et al. Feb 2011 A1
20110065731 Dugi et al. Mar 2011 A1
20110092510 Klein et al. Apr 2011 A1
20110098240 Dugi et al. Apr 2011 A1
20110112069 Himmelsbach et al. May 2011 A1
20110144083 Himmelsbach et al. Jun 2011 A1
20110144095 Himmelsbach et al. Jun 2011 A1
20110190322 Klein et al. Aug 2011 A1
20110195917 Dugi et al. Aug 2011 A1
20110206766 Friedl et al. Aug 2011 A1
20110263493 Dugi et al. Oct 2011 A1
20110263617 Mark et al. Oct 2011 A1
20110275561 Graefe-Mody et al. Nov 2011 A1
20110301182 Dugi Dec 2011 A1
20120003313 Kohlrausch et al. Jan 2012 A1
20120035158 Himmelsbach et al. Feb 2012 A1
20120040982 Himmelsbach et al. Feb 2012 A1
20120053173 Banno et al. Mar 2012 A1
20120094894 Graefe-Mody et al. Apr 2012 A1
20120107398 Schneider et al. May 2012 A1
20120121530 Klein et al. May 2012 A1
20120122776 Graefe-Mody et al. May 2012 A1
20120129874 Sieger et al. May 2012 A1
20120142712 Pfrengle et al. Jun 2012 A1
20120165251 Klein et al. Jun 2012 A1
20120208831 Himmelsbach et al. Aug 2012 A1
20120219622 Kohlrausch et al. Aug 2012 A1
20120219623 Meinicke Aug 2012 A1
20120252782 Himmelsbach et al. Oct 2012 A1
20120252783 Himmelsbach et al. Oct 2012 A1
20120296091 Sieger et al. Nov 2012 A1
20130122089 Kohlrausch et al. May 2013 A1
20130172244 Klein et al. Jul 2013 A1
20130184204 Pfrengle et al. Jul 2013 A1
20130196898 Dugi et al. Aug 2013 A1
20130236543 Ito et al. Sep 2013 A1
Foreign Referenced Citations (277)
Number Date Country
2003280680 Jun 2004 AU
2009224546 Sep 2009 AU
1123437 May 1982 CA
2136288 May 1995 CA
2418656 Feb 2002 CA
2496249 Mar 2004 CA
2496325 Mar 2004 CA
2498423 Apr 2004 CA
2505389 May 2004 CA
2508233 Jun 2004 CA
2529729 Dec 2004 CA
2543074 Jun 2005 CA
2555050 Sep 2005 CA
2556064 Sep 2005 CA
2558067 Oct 2005 CA
2561210 Oct 2005 CA
2562859 Nov 2005 CA
2576294 Mar 2006 CA
2590912 Jun 2006 CA
2651019 Nov 2007 CA
2651089 Nov 2007 CA
101234105 Aug 2008 CN
2205815 Aug 1973 DE
2758025 Jul 1979 DE
10109021 Sep 2002 DE
10117803 Oct 2002 DE
10238243 Mar 2004 DE
102004019540 Nov 2005 DE
102004024454 Dec 2005 DE
102004044221 Mar 2006 DE
102004054054 May 2006 DE
0023032 Jan 1981 EP
0149578 Jul 1985 EP
0223403 May 1987 EP
0237608 Sep 1987 EP
0248634 Dec 1987 EP
0389282 Sep 1990 EP
0399285 Nov 1990 EP
0400974 Dec 1990 EP
409281 Jan 1991 EP
0412358 Feb 1991 EP
443983 Aug 1991 EP
0475482 Mar 1992 EP
0524482 Jan 1993 EP
0657454 Jun 1995 EP
0775704 May 1997 EP
0950658 Oct 1999 EP
1054012 Nov 2000 EP
1066265 Jan 2001 EP
1333033 Aug 2003 EP
1338595 Aug 2003 EP
1406873 Apr 2004 EP
1500403 Jan 2005 EP
1514552 Mar 2005 EP
1535906 Jun 2005 EP
1537880 Jun 2005 EP
1557165 Jul 2005 EP
1586571 Oct 2005 EP
1743655 Jan 2007 EP
1760076 Mar 2007 EP
1829877 Sep 2007 EP
1852108 Nov 2007 EP
1897892 Mar 2008 EP
2143443 Jan 2010 EP
385302 Apr 1973 ES
2256797 Jul 2006 ES
2263057 Dec 2006 ES
2707641 Jan 1995 FR
2084580 Apr 1982 GB
9003243 May 1990 HU
9902308 Jul 2000 HU
S374895 Jun 1962 JP
770120 Mar 1995 JP
8333339 Dec 1996 JP
11193270 Jul 1999 JP
2000502684 Mar 2000 JP
2001213770 Aug 2001 JP
2002348279 Dec 2002 JP
2003286287 Oct 2003 JP
2003300977 Oct 2003 JP
2004161749 Jun 2004 JP
2006045156 Feb 2006 JP
2010053576 Mar 2010 JP
2010524580 Jul 2010 JP
20070111099 Nov 2007 KR
9107945 Jun 1991 WO
9205175 Apr 1992 WO
9219227 Nov 1992 WO
9402150 Feb 1994 WO
9403456 Feb 1994 WO
9532178 Nov 1995 WO
9609045 Mar 1996 WO
9611917 Apr 1996 WO
9636638 Nov 1996 WO
9723447 Jul 1997 WO
9723473 Jul 1997 WO
9746526 Dec 1997 WO
9807725 Feb 1998 WO
9811893 Mar 1998 WO
9818770 May 1998 WO
9822464 May 1998 WO
9828007 Jul 1998 WO
9840069 Sep 1998 WO
9846082 Oct 1998 WO
9856406 Dec 1998 WO
9929695 Jun 1999 WO
9950248 Oct 1999 WO
9956561 Nov 1999 WO
9967279 Dec 1999 WO
0073307 Dec 2000 WO
0107441 Feb 2001 WO
0140180 Jun 2001 WO
0152825 Jul 2001 WO
0152852 Jul 2001 WO
0166548 Sep 2001 WO
0168646 Sep 2001 WO
0172290 Oct 2001 WO
0177110 Oct 2001 WO
0196301 Dec 2001 WO
0197808 Dec 2001 WO
0202560 Jan 2002 WO
0214271 Feb 2002 WO
0224698 Mar 2002 WO
02053516 Jul 2002 WO
02068420 Sep 2002 WO
03000241 Jan 2003 WO
03002531 Jan 2003 WO
03004496 Jan 2003 WO
03024965 Mar 2003 WO
03033686 Apr 2003 WO
03037327 May 2003 WO
03053929 Jul 2003 WO
03055881 Jul 2003 WO
03057200 Jul 2003 WO
03064454 Aug 2003 WO
03088900 Oct 2003 WO
03094909 Nov 2003 WO
03099279 Dec 2003 WO
03099836 Dec 2003 WO
03104229 Dec 2003 WO
03106428 Dec 2003 WO
2004002924 Jan 2004 WO
2004011416 Feb 2004 WO
2004016587 Feb 2004 WO
2004018467 Mar 2004 WO
2004018468 Mar 2004 WO
2004018469 Mar 2004 WO
2004028524 Apr 2004 WO
2004033455 Apr 2004 WO
2004035575 Apr 2004 WO
2004041820 May 2004 WO
2004046148 Jun 2004 WO
2004048379 Jun 2004 WO
2004050658 Jun 2004 WO
2004052362 Jun 2004 WO
2004058233 Jul 2004 WO
2004062689 Jul 2004 WO
2004065380 Aug 2004 WO
2004081006 Sep 2004 WO
2004082402 Sep 2004 WO
2004096806 Nov 2004 WO
2004096811 Nov 2004 WO
2004106279 Dec 2004 WO
2004108730 Dec 2004 WO
2004111051 Dec 2004 WO
2005000846 Jan 2005 WO
2005000848 Jan 2005 WO
2005007647 Jan 2005 WO
2005007658 Jan 2005 WO
2005012288 Feb 2005 WO
2005023179 Mar 2005 WO
2005049022 Jun 2005 WO
2005051950 Jun 2005 WO
2005058901 Jun 2005 WO
2005061489 Jul 2005 WO
2005063750 Jul 2005 WO
2005082906 Sep 2005 WO
2005085246 Sep 2005 WO
2005092870 Oct 2005 WO
2005092877 Oct 2005 WO
2005095343 Oct 2005 WO
2005095381 Oct 2005 WO
2005097798 Oct 2005 WO
2005116000 Dec 2005 WO
2005116014 Dec 2005 WO
2005117861 Dec 2005 WO
2005117948 Dec 2005 WO
2006005613 Jan 2006 WO
2006027204 Mar 2006 WO
2006029769 Mar 2006 WO
2006036664 Apr 2006 WO
2006040625 Apr 2006 WO
2006047248 May 2006 WO
2006048209 May 2006 WO
2006048427 May 2006 WO
2006068163 Jun 2006 WO
2006071078 Jul 2006 WO
2006076231 Jul 2006 WO
2006083491 Aug 2006 WO
2006135693 Dec 2006 WO
2006137085 Dec 2006 WO
2007007173 Jan 2007 WO
2007014886 Feb 2007 WO
2007014895 Feb 2007 WO
2007017423 Feb 2007 WO
2007033350 Mar 2007 WO
2007035355 Mar 2007 WO
2007035665 Mar 2007 WO
2007041053 Apr 2007 WO
2007071738 Jun 2007 WO
2007072083 Jun 2007 WO
2007078726 Jul 2007 WO
2007093610 Aug 2007 WO
2007099345 Sep 2007 WO
2007120702 Oct 2007 WO
2007120936 Oct 2007 WO
2007128721 Nov 2007 WO
2007128724 Nov 2007 WO
2007128761 Nov 2007 WO
2007135196 Nov 2007 WO
2007137107 Nov 2007 WO
2007147185 Dec 2007 WO
2007148185 Dec 2007 WO
2007149797 Dec 2007 WO
2008005569 Jan 2008 WO
2008005576 Jan 2008 WO
2008017670 Feb 2008 WO
2008022267 Feb 2008 WO
2008055870 May 2008 WO
2008055940 May 2008 WO
2008070692 Jun 2008 WO
2008081205 Jul 2008 WO
2008083238 Jul 2008 WO
2008087198 Jul 2008 WO
2008093878 Aug 2008 WO
2008093882 Aug 2008 WO
2008113000 Sep 2008 WO
2008130998 Oct 2008 WO
2008131149 Oct 2008 WO
2009011451 Jan 2009 WO
2009022007 Feb 2009 WO
2009022008 Feb 2009 WO
2009022010 Feb 2009 WO
2009024542 Feb 2009 WO
2009063072 May 2009 WO
2009099734 Aug 2009 WO
2009112691 Sep 2009 WO
2009121945 Oct 2009 WO
2009123992 Oct 2009 WO
2009147125 Dec 2009 WO
2010015664 Feb 2010 WO
2010018217 Feb 2010 WO
2010029089 Mar 2010 WO
2010043688 Apr 2010 WO
2010045656 Apr 2010 WO
2010072776 Jul 2010 WO
2010079197 Jul 2010 WO
2010086411 Aug 2010 WO
2010092124 Aug 2010 WO
2010092125 Aug 2010 WO
2010092163 Aug 2010 WO
2010096384 Aug 2010 WO
2010106457 Sep 2010 WO
2010147768 Dec 2010 WO
2011039337 Apr 2011 WO
2011039367 Apr 2011 WO
2011064352 Jun 2011 WO
2011113947 Sep 2011 WO
2011138380 Nov 2011 WO
2011138421 Nov 2011 WO
2011161161 Dec 2011 WO
2012031124 Mar 2012 WO
2012065993 May 2012 WO
2012106303 Aug 2012 WO
2012120040 Sep 2012 WO
2013098372 Jul 2013 WO
2013103629 Jul 2013 WO
Non-Patent Literature Citations (223)
Entry
International Search Report and Written Opinion for PCT/EP2009/067772 mailed Apr. 14, 2010.
Januvia; Patient Information; 2010.
Kanada, S. et al., “Safety, tolerability, pharmacokenetics and pharmacodynamics of multiple doses of BI 1356 (proposed tradename ONDERO), a dipeptidyl peptidase 4 inhibitor, in Japanese patients with type 2 diabetes” Diabetes, vol. 57, No. Suppl. 1, Jun. 2008, p. A158-A159 and 68th Annual Meeting of the American Diabetes Association: San Francisco, CA , Jun. 6-10, 2008.
Kim, D. et al., “(2R)-4-Oxo-4-(3-(Trifluoremethyl)-5,6-dihydro[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl]-1-(2,4,5-trifluorophenyl)butan-2-amine: A Potent, Orally Active Dipeptidyl Peptidase IV inhibitor for the Treatment of Type 2 Diabetes.” Journal Med. Chem, 2005, 48, p. 141-151.
Korom, S. et al; Inhibition of CD26/dipeptidyl peptidase IV activity in vivo prolongs cardiac allograft survival in rat recipients1,2, Transplantation, May 27, 1997, vol. 63, No. 10, pp. 1495-1500.
Lambier, A.M. et al., Dipeptidyl-Peptidase IV from Bench to Bedside: An Update on Structural Properties, Functions, and Clinical Aspects of the Enzyme DPP IV. Critical Reviews in Clinical Laboratory Sciences, 2003, 40(3), p. 209-294.
March, J. “Advanced Organic Chemistry: Reactions, Mechanisms, and Structure”. Fourth Edition, 1992, pp. 652-653.
Mendes, F.D, et al. “Recent advances in the treatment of non-alcoholic fatty liver disease”. Expert Opinion on Investigational Drugs, vol. 14, No. 1, Jan. 1, 2005, p. 29-35.
Merck: “Initial Therapy with Janumet (sitagliptin/metformin) provided significantly greater blood sugar lowering compared to metformin alone in patients with type 2 diabetes”. Webwire.com, Jun. 8, 2009, p. 1-4. http://www.webwire.com/ViewPressRel.asp?ald=96695.
O'Farrell, et al., “Pharmacokinetic and Pharmacodynamic Assessments of the Dipeptidyl Peptidase-4 Inhibitor PHX1149: Double-Blind, Placebo-controlled, Single-and Multiple-Dose Studies in Healthy Subjects”. Clinical Therapeutics, Excerpta Medica, Princeton, NJ, vol. 29, No. 8, 2007, p. 1692-1705.
Patani George A. et al.: “Bioisoterism : A Rational Approach in Drug Design”, Chemical Reviews, 1996, vol. 96, No. 8, pp. 3147-3176.
Pei, Z.: “From the bench to the bedside: Dipeptidyl peptidase IV inhibitors, a new class of oral antihyperglycemic agents” Current Opinion in Drug Discovery and Development, Current Drugs, London, GB vol. 11, No. 4, Jul. 1, 2008 pp. 512-532.
Pospisilik, et al; Dipeptidyl Peptidase IV Inhibitor Treatment Stimulates ?—Cell Survival and Islet Neogenesis in Streptozotocin-Induced Diabetic Rats; Diabetes, vol. 52, Mar. 2003 pp. 741-750.
Priimenko, B. A., et al; Synthesis and Pharmacological Activity of Derivates of 6,8-Dimethyl Imidazo(1,2-f) Xanthine—(Russ.); Khimiko-Farmatsevticheskii zhurnal (1984) vol. 18, No. 12 pp. 1456-61.
Rhee et al.: “Nitrogen-15-Labeled Deoxynucleosides. 3. Synthesis of [3-15N]-2′-Deoxyadenosine” J. Am. Chem. Soc. 1990, 112, 8174-8175.
Rosenstock, et al., “Efficacy and tolerability of initial combination therapy with vildagliptin and pioglitazone compared with component montherapy in patients with type 2 diabetes”. Diabetes, Obesity and Metabolism, Mar. 2007, vol. 9, No. 2, p. 175-185.
Salomon, J., et al; Ultraviolet and g-Ray-Induced Reactions of Nucleic Acid Constituents. Reactions of Purines with Amines; Photochemistry and Photobiology (1974) vol. 19 pp. 21-27.
Sathananthan, A., et al., “Personalized pharmacotherapy for type 2 diabetes mellitus”. Personalized Medicine 2009 Future Medicine Ltd, vol. 6, No. 4, Jul. 2009, p. 417-422.
Sauer, R, et al. “Water-soluble phosphate prodrugs of 1-Propargyl-7-styrylxanthine derivatives, A2A-selective adenosine receptor antagonists”. Journal Med. Chem., vol. 43, Issue 3, Jan. 2000, p. 440-448.
Schwartz, M. S. et al., “Type 2 Diabetes Mellitus in Childhood: Obesity and Insulin Resistance”. JAOA Review Article, vol. 108, No. 9, Sep. 2008, p. 518.
Scientific Discussion: “Eucreas. Scientific discussion”. Online Oct. 2007, p. 1-27, URL:http://www.emea.europa.eu/humandocs/PDFs/EPAR/eucreas/H-807-en6.pdf. see point 2. quality aspects pp. 2-4. (EMEA).
Sedo, A. et al; “Dipeptidyl peptidase IV activity and/or structure homologs: Contributing factors in the pathogenesis of rheumatoid arthritis?” Arthritis Research & Therapy 2005, vol. 7, pp. 253-269.
Stahl, P.H., “Handbook of Pharmaceutical Salts”. C.G. Wermuth, Wiley-VCH, 2002, p. 61.
Tamm, E, et al., “Double-blind study comparing the immunogenicity of a licensed DTwPHib-CRM197 conjugate vaccine (Quattvaxem TM) with three investigational, liquid formulations using lower doses of Hib-CRM197 conjugate”. Science Direct, Vaccine, Feb. 2005, vol. 23, No. 14, p. 1715-1719.
Tanaka, S.. et al; “Suppression of Arthritis by the Inhibitors of Dipeptidyl Peptidase IV,” In. J. Immunopharmac., vol. 19, No. 1, pp. 15-24, 1997.
Thomas, L, et al: “BI 1356, a novel and selective xanthine beased DPP-IV inhibitor, exhibits a superior profile when compared to sitagliptin and vildagliptin.” Diabetologoa, vol. 50, No. Suppl. 1, Sep. 2007, p. S363.
Thomas, Leo et al: “(R)-8-(3-Amino-piperidin-1-yl)-7-but-2-ynyl-3-methyl-1-(4-methyl-quinazolin-2-ylmethyl)-3,7-dihydro-purine-2,6-dione (BI 1356), a Novel Xanthine-Based Dipeptidyl Peptidase 4 Inhibitor, Has a Superior Potency and Longer Duration of Action Compared with Other Dipeptidyl Peptidase-4 Inhibitors” Journal of Pharmacology and Experimental Therapeutics, American Socity for Therapeutics, US, vol. 325, No. 1, Apr. 1, 2008, pp. 175-182 abstract p. 177, col. 2, paragraph 1 table 1 p. 1B1, col. 2, last paragraph-p. 182, col. 1.
U.S. Appl. No. 12/724,653, filed Mar. 16, 2010—Xanthine Derivatives, the Preparation Thereof and Their Use as Pharmaceutical Compositions. Inventor: Frank Himmelsbach, et al.
U.S. Appl. No. 12/767,855, filed Apr. 27, 2010—Xanthine Derivatives, the Preparation Thereof and Their use as Pharmaceutical Compositions. Inventor: Frank Himmelsbach, et al.
Villhauer, E.B., “1-[[3-Hydroxy-1-adamantyl]amino]acetyl]-1-cyano-(S)-pyrrolidine: A Potent, Selective, and Orally Bioavailable Dipeptidyl Peptidase IV Inhibitor with Antihyperglycemic Properties” Journal Med. Chem, 2003, 46, p. 2774-2789.
Villhauer, E.B., et al., “1-{2-{5-Cyanopyridin-2-yl)amino)-ethylamino}acetyl-1-1(S)-pyrrolidine-carbonitrile: A Potent, Selective, and Orally Bioavailable Dipeptidyl Peptidase IV Inhibitor with Antihyperglycemic Properties”. Journal of Medical Chemistry, 2002, vol. 45, No. 12, p. 2362-2365.
Wang Y et al: “BI-1356. Dipeptidyl-peptidase IV inhibitor, antidiabetic agent” Drugs of the Future, Prous Science, ES,vol. 33, No. 6, Jun. 1, 2008, pp. 473-477.
White, J.R., “Dipeptidyl Peptidase-IV Inhibitors: Phamacological Profile and Clinical Use”. Clinical Diabetes, vol. 26, 2008, p. 53-57.
Wikipedia, Annulation. Jun. 23, 2008, http://en.wikipedia.org/wiki/Annelation.
Williams-Herman, D. et al., “Efficacy and safety of initial combination therapy with sitagliptin and metformin in patients with type 2 diabetes: a 54-week study”. Current Medical Research and Opinion, Informa Healthcare, GB, vol. 25, No. 3, Jan. 2009, p. 569-583.
Wolff, M.E: “Burger's Medicinal Chemistry and Drug Discovery” Fifth Edition, vol. 1: Principles and Practice, pp. 975-977, 1994, John Wiley & Sons, Inc.
World Health Organization (WHO). “Addendum 1 to “The use of stems in the selection of International Nonproprietary names (INN) for pharmaceutical substances”” Online Jun. 19, 2007, pp. 1-3, retrieved from URL: http://www.who.int/medicindedocs/index/assoc/s1414e/s1414e.pdf.
X-Ray Diffraction. The United States Pharmacopeia, 2002, USP 25 NF20, p. 2088-2089.
Yasuda, et al. “E3024 3-but-2-ynyl-5-methyl-2-piperazin-1-y1-3,5-dihydro-4H-imidazol [ 4,5-d]pyridazin-4-one tosylate, is a move, selective and competitive dipeptidyl peptidase-IV inhibitor”. European Journal of Pharmacology, vol. 548, No. 1-3, Oct. 24, 2006, p. 181-187. Abstract.
Yoshikawa, Seiji et al.: Chemical Abstract of Japanese Patent No. WO 2003/104229 Preparation of purinone derivatives as dipeptidylpeptidase IV (DPP-IV) inhibitors, 2003.
Zejc, Alfred, et al; “Badania Nad Piperazynowymi Pochodnymi Dwumetyloksantyn” Acta Polon Pharm, XXXV (1976) Nr. 4 pp. 417-421.
Zhong, Qing et al; “Glucose-dependent insulinotropic peptide stimulates proliferation and TGF—? release from MG-63 cells,” Peptides 24 (2003) 611-616.
Zimmer et al; Synthesis of 8-Substituted Xanthines and their Oxidative Skeleton Rearrangement to 1-Oxo-2,4,7,9-tetraazaspiro[4,5]dec-2-ene-6,8,10-triones; Euripean Journal Organic Chemistry (1999) vol. 9 pp. 2419-2428.
Abstract in English for German DE2205815, 1972.
Abstract in English for German EP0023032, 1981.
Abstract in English, for KR20070111099, Nov. 11, 2007.
Ahren B: “DPP-4 inhibitors”, Best practice and research in clinical endocrinology and metabolism—New therapies for diabetes 200712 GB LNKD—DOI:10.1016/J. Beem.2007.07.005, vol. 21, No. 4, Dec. 2007, pp. 517-533.
Augeri, D.J. “Discovery and Preclinical Profile of Saxagliptin (GMB-477118): A Highly Potent, Long-Acting, Orally Active Dipeptidyl Peptidase IV Inhibitor for the Treatment of Type 2 Diabetes”. Journal Med. Chem, 2005, vol. 48, No. 15, p. 5025-5037.
Augusti, D.V. et al., “Quantitative determinatio of the enantiomeric composition of thalidomide solutions by electrospray ionizatio tandem mass spectrometry”. Chem Comm, 2002, p. 2242-2243.
Augustyns, K. et al., The Unique Properties of Dipeptidyl-peptidase IV (DPP IV/CD 26) and the Therapeutic Potential of DPP-IV Inhibitors, Current Medicinal Chemistry, vol. 6, No. 4, 1999, pp. 311-327.
Aulinger, B.A. et al., “Ex-4 and the DPP-IV Inhibitor Vildagliptin have Additive Effects to Suppress Food Intake in Rodents”. Abstract No. 1545-P, 2008.
Balaban, Y.H.et al., “Dipeptidyl peptidase IV (DDP IV) in NASH patients” Annals of Hepatology, vol. 6, No. 4, Oct. 1, 2007, pp. 242-250, abstract.
Balkan, B. et al, “Inhibition of dipeptidyl peptidase IC with NVP-DPP728 increases plasma GLP-1 (7-36 amide) concentrations and improves oral glucose tolerance in obses Zucker rates”. Diabetologia, 1999, 42, p. 1324-1331.
Beljean-Leymarie et al., Hydrazines et hydrazones heterocycliques. IV. Syntheses de derives de l'hydrazine dans la serie des imidazo[4,5-d]pyridazinones-4, Can. J. Chem., vol. 61, No. 11, 1983, pp. 2563-2566.
Bollag, R.J. et al; “Osteoblast-Derived Cells Express Functional Glucose-Dependent Insulinotropic Peptide Receptors,” Endocrinology, vol. 141, No. 3, 2000, pp. 1228-1235.
Brazg, R. et al: “Effect of adding sitagliptin, a dipeptidyll peptidase-4 inhibitor, to metformin on 24-h glycaemic control and beta-cell function in patients with type 2 diabetes.” Diabetes, Obesity and Metabolism, Mar. 2007, vol. 9, No. 2, Mar. 2007 pp. 18-193.
Brittain, H.G., “Methods for the Characterization of Polymorphs: X-Ray Powder Diffraction,” Polymorphism in Pharmaceutical Solids, 1999, p. 235-238.
Bundgaard, H. “Design of prodrugs: Bioreversible derivatives for various functional groups and chemical entities”. Royal Danish School of Pharmacy, 1985, p. 1-92.
Busso et al., “Circulating CD26 is Negatively Associated with Inflammation in Human and Experimental Arthritis,” Am. J. Path., vol. 166, No. 2, Feb. 2005, pp. 433-442.
Caira, M.R., “Crystalline polymorphism of organic compounds” Topics in Current Chemistry, Springer, Berlin, vol. 198, 1998, p. 163-208.
Chemical Abstract. EP412358, 1991:185517, Findeisen.
Chemical Abstract: FR2707641, 1995:543545, Dodey.
Chemical Abstracts Accession No. 106:95577 Romanenko et al., “Synthesis and Biological Activity of 3-Methyl, 7- or 8-alkyl-7,8dialkyl, heterocyclic, and cyclohexylaminoxanthines,” Zaporozh. Med. Institute (1986).
Chemical Abstracts Accession No. 1987:95577: Abstract of Romanenko et al., “Synthesis and biological activity of 3-methyl, 7- or 8-alkyl, 7,8-dialkyl, heterocyclic, and cyclohexylaminoxanthines,” Zapoeozh, USSR, Farmatsevtichnii Zhurnal, 1986, (Kiev), vol. 5, 1986, pp. 41-44.
Clinical Trials. “View of NCT00601250 on Jan. 25, 2008: Efficacy and Safety of BI 1356 vs Placebo added to Metformin Background Therapy in Patients with Type 2 Diabetes” Clinical Trials. Gov Archive, [Online] Jan. 25, 2008 URL:http://clinicaltrials.gov/archive/NCTO0601250/2008—01—25 [retrieved on Feb. 27, 2009].
Clinical Trials. NCT00622284. “Efficacy and safety of BI 1356 in combination with metformin in patients with type 2 diabetes” ClinicalTrials.gov (Online) No. NCT00622284, Feb. 13, 2008, p. 1-5, URL:http://clinicaltrial.gov/ct2/show/.
Clinical Trials. View of NCT00730275 updated on Aug. 7, 2008. “A study to assess the pharmacokinetics, safety and tolerability of Sitagliptin in adolescents”. http://clinicaltrials.gov/archive/NCT00730275/2008—08—07.
Clinical Trials: NCT00309608. Efficacy and safety of BI 1356 in combination with metformin in patients with type2 diabetes. Boehringer Ingelheim Pharmaceuticals, Jan. 27, 2009. Clinical Trials.gov . http://clinicaltrials.gov/archive/NCT00309608/2009—01—27.
Clinical Trials: NCT00602472. “BI 1356 in combination withe metformin and a sulphonylurea in Type 2 Diabetes”. DrugLib.com, Nov. 3, 2008. http://www.druglib.com/tria1/08/NCT00309608.html.
Clinical Trials: NCT00622284. Efficacy and Safety of BI 1356 in Combination with Metformin in Patients with Type 2 Diabetes. Boehringer Ingelheim Pharmaceuticals, Aug. 2008. http://clinicaltrials.gov/archive/NCT00622284/2010—01—13.
Clinical Trials: NCT00798161. “Safety and efficacy of Bi 1356 Plus Metformin in Type 2 Diabetes, Factorial Design”. Clinical Trials.gov archive. A Service of the U.S> National Institutes of Health. Nov. 24, 2008, p. 1-3. http://clinicaltrials.gov/archive/NCT00798161/2008—11—24.
Combs, D. W. et al., “Phosphoryl Chloride Induced Ring Contraction of 11,4-Benzodiazepinones to Chloromethylquinazolines”. J. Heterocyclic Chemistry, BD. 23, 1986, p. 1263-1264.
Conarello, S.L. et al., “Mice lacking dipeptidyl peptidase IV are protected against obesity and insulin resistance”. PNAS, May 27, 2003, vol. 100, No. 11, p. 6825-6830.
Cygankiewicz, Andrzej et al., Investigations into the Piperazine Derivatives of Dimethylxanthine:, Acta Polon. Pharm. [Papers of Polish Pharmacology], XXXOV, No. 5, pp. 607-612, 1977.
Dave, K.G. et al., “Reaction of Nitriles under Acidic Conditions, Part I. A General Method of Synthesis of Condensed Pyrimidines”, J. Heterocyclic Chemistry, BD, 17, 1, ISSN 0022-152X,Nov. 1980, p. 1497-1500.
Deacon, C.F. et al; “Dipeptidyl peptidase IV inhabitation as an approach to the treatment and prevention of type 2 diabetes: a historical perspective;” Biochemical and Biophysical Research Communications (BBRC) 294 (2002) 1-4.
Deacon, C.F., et al. Inhibitors of dipeptidyl peptidase IV: a novel approach for the prevention and treatment of Type 2 diabetes? Expert Opinion on Investigational Drugs, Sep. 2004, vol. 13, No. 9, p. 1091-1102.
DeMeester, I. et al.; “CD26, let it cut or cut it down”, Review: Immunology Today; Aug. 1999, vol. 20, No. 8 pp. 367-375.
Dugi, K.A. et al., “BI 1356, a novel xanthine-based DPP-IV inhibitor, exhibits high potency with a wide therapeutic window and significantly reduces postprandial glucose excursions after an oGTT”. Diabetologia, vol. 50, No. Suppl 1, Sep. 2007, p. S367, and 43rd Annual Meeting of the European Association for the Study of Diabetes; Amsterdam, Netherlands, Sep. 18-21, 2007.
Eckhardt Matthias et al: 8-(3-(R)-aminopiperidin-1-yl)-7-but-2-yny 1-3-methyl-1-(4-methyl-quina zolin-2-ylmethyl)-3,7-dihydropurine-2,6-dione (BI 1356), a highly potent, selective, long-acting, and orally bioavailable DPP-4 inhibitor for the treatment of type 2 diabetes: Journal of Medicinal Chemistry, American Chemical Society. Washington.; US, vol. 50, No. 26, Dec. 1, 2007, p. 6450-6453.
Eckhardt, M. et al., “3,5-dihydro-imidazo[4,5-d]pyridazin-4-ones: a class of potent DPP-4 inhibitors” Bioorganic & Medicinal Chemistry Letters, Pergamon, Elsevier Science, GB, vol. 18, No. 11, Jun. 1, 2008, pp. 3158-3162, XP022711188.
Elrishi M a et al: “The dipeptidyl-peptidase-4 (D::-4) inhibitors: A new class of oral therapy for patients with type 2 diabetes mellitus” Practical Diabetes International Chichester, vol. 24, No. 9, Nov. 1, 2007 pp. 474-482.
Florez, Jose C., et al., “TCF7L2 Polymorphisms and progression to diabetes in the diabetes prevention program”. New England Journal of Medicine, MA Medical Society, vol. 355, No. 2, Jul. 20, 2006, p. 241-250.
Gallwitz, B. et al., “Saxagliptin, a dipeptidyl peptidase IV inhibitor for the treatment of type 2 diabetes”. IDrugs, vol. 11, No. 12, Dec. 2008, p. 906-917.
Garber, A.J. et al., “Update: Vildaglitin for the treatment of Type 2 diabetes” Expert Opinion on Investigational Drugs, 200801GB, vol. 17, No. 1, Jan. 2008, p. 105-113.
Garcia-Soria, et al., “The dipeptidyl peptidase-4 inhibitor PHX1149 improves blood glucose control in patents with type 2 diabetes mellitus”. Diabetes, Obesity and Metabolism, Apr. 2008, vol. 10, No. 4, p. 293-300.
Gennaro, Alfonso, R; Remington: The Science and Practice of Pharmacy: Oral Solid Dosage Forms; Mack Publishing Company, Philadelphia, PA (1995) vol. II, 19th Edition, Ch. 92 pp. 1615-1649.
Giron, D.; Thermal Analysis and Calorimetric Methods in the Characterisation of Polymorphs and Solvates; Thermochimica Acta (1995) vol. 248 pp. 1-59.
Graefe-Mody et al., “The novel DPP-4 inhibitor” Diabetes, (online) 2008, XP002561421 http://professional.diabetes.org/content/posters/2008/p553-p.pdf.
Greene, T.W, et al., “Protection for the Amino Group”. Protective Groups in Organic Synthesis, 3rd edition, 1999, p. 494-653.
Gwaltney, S. “Medicinal Chemistry Approaches to the Inhibition of Dipeptidyl Peptidase IV”, Current Topics in Medicinal Chemistry, 2008, 8, p. 1545-1552.
He, Y.L. et al., “The influence of hepatic impariment on the pharmacokinetics f the dipeptidyl peptidase IV (DPP-4) inhibitor vildagliptin” European Journal of Clinical Pharmacology, vol. 63, No. 7, May 8, 2007, p. 677-686.
Huettner Silks et al: “BI 1356, a novel and selective xanthine based DPP-IV inhibitor, demonstrates good safety and tolerability with a wide therapeutic window” Diabetes< American Diabetes Association, US, vol. 56, No. Suppl 1, Jun. 1, 2007, p. A156.
Plummer, C.J.G. et al., “The Effect of Melting Point Distributions on DSC Melting Peaks.” Polymer Bulletin, 1996, vol. 36, pp. 355-360.
Office Action for U.S. Appl. No. 10/695,597 mailed May 2, 2008.
Lakatos, P. L. et al., “Elevated Serum Dipeptidyl IV (CD26, EC 3.4.14.5) Activity in Experimental Liver Cirrhosis.” European Journal of Clinical Investigation, 2000, vol. 30, No. 9, pp. 793-797.
Tribulova, N. et al. “Chronic Disturbances in NO Production Results in Histochemical and Subcellular Alterations of the Rat Heart.” Physiol. Res., 2000, vol. 49, No. 1, pp. 77-88.
Schmidt, D. et al., “Fibromatosis of Infancy and Childhood Histology, Ultrastructure and Clinicopathologic Correlation.” Zeitschrift für Kinderchirurgie, 1985, vol. 40, No. 1, pp. 40-46.
Edosada, C. Y. et al. “Selective Inhibition of Fibroblast Activation Protein Protease Based on Dipeptide Substrate Specificity.” The Journal of Biological Chemistry, 2006, vol. 281, No. 11, pp. 7437-7444.
Hu, Y. et al., “Synthesis and Structure-activity Relationship of N-alkyl Gly-boro-Pro Inhibitors of DPP4, FAP, and DPP7.” Bioorganic & Medicinal Chemistry Letters 15, 2005, pp. 4239-4242.
Charkevich, D. A., Pharmacology, M., Medicina, 1987, pp. 47-48.
Tradjenta, Highlights of Prescribing Information (revised Sep. 2012).
Inukai, T., “Treatment of Diabetes in Patients for Whom Metformin Treatment is Not Appropriate.” Modern Physician, 2008, vol. 28, No. 2, pp. 163-165.
Matsumiya, T. et al., “Therapeutic Drugs for Clinicians.” Diagnosis and Therapy, 2008, vol. 96, No. 2, pp. 389-390.
Hayashi, M. “Recipe for Oral Hypoglcemic Agents According to Pathological Condition.” Pharmacy, 2006, vol. 57, No. 9, pp. 2735-2739.
Shintani, M. et al. “Insulin Resistance and Genes.” Circulatory Science, 1997, vol. 17, No. 12, pp. 1186-1188.
Gennaro, Alfonso R., Remington Farmacia, 19th Edition, Spanish copy, 1995, p. 2470.
Berge, S. et al., “Pharmaceutical Salts.” Journal of Pharmaceutical Sciences, 1977, vol. 66, No. 1, pp. 1-19.
Chemistry Review: Tradjenta, “NDA 201280, CMC Director Review Tradjenta (Linagliptin) Tablets.” Center for Drug Evaluation and Research, Aug. 9, 2010, Retrieved from the internet on Nov. 1, 2013, http://www.accessdata.fda.gov/drugsatfda—docs/nda/2011/201280Orig1s000ChemR.pdf.
Nihon Ijinpo, Japan Medicinal Journal, 2001, No. 4032, p. 137.
Definition of “prevent”, e-dictionary, Aug. 15, 2013, http://dictionary.reference.com/browse/prevent.
Medline Plus, “Obesity” 2013, Retrieved from internet on Aug. 22, 2013, http://www.nlm.nih.gov/medlineplus/obesity.html.
St. John Providence Health Center, “Preventing Obesity in Children and Teens.” Retrieved from internet on Aug. 22, 2013, http://www.stjohnprovidence.org/Health I nfoLib/swarticle.aspx?type=85&id= P07863.
Ferry, Robert Jr., “Diabetes Causes.” eMedicine Health, MedicineNet.com, 2013, Retrieved from internet on Aug. 22, 2013, http://www.onhealth.com/diabetes—health/page3.htm#diabetes—causes.
United Healthcare, “Diabetes.” Retrieved from internet on Aug. 22, 2013, http://www.uhc.com/source4women/health—topics/diabetesirelatedinformation/dOf0417b073bf110VgnVCM1000002f1Ob1Oa —. htm.
Florez, J. et al. “TCF7L2 Polymorphisms and Progression to Diabetes in the Diabetes Prevention Program.” The New England Journal of Medicine, 2006, vol. 355, No. 3, pp. 241-250.
Targher, G. et al., “Prevalence of Nonalcoholic Fatty Liver Disease and Its Association With Cardiovascular Disease Among Type 2 Diabetic Patients.” Diabetes Care, 2007, vol. 30, No. 5, pp. 1212-1218.
Diabetesincontrol.com “EASD: Eucreas, a Combination of Galvus and Metformin, Recommended for Approval.” Diabetes in Control.com, Sep. 25, 2007, Retrieved from internet on Nov. 30, 2012, http:/ /www.diabetesincontrol.com/articles/53-diabetes-news/5145.
Ferreira, L. et al., “Effects of Sitagliptin Treatment on Dysmetabolism, Inflammation, and Oxidative Stress in an Animal Model of Type 2 Diabetes (ZDF Rat).” Mediators of Inflammation, 2010, vol. 2010, pp. 1-11.
Drucker, et al.., The incretin system:glucagon-like peptide-1 receptor agonists and dipeptidyl peptidase-4 inhibitors in type 2 diabetes. Lancet, 2006, 368: 1696-705.
Horsford, E. N. “On the source of free hydrochloric acid in the gastric juice.” Proceedings of the Royal Society of London, Published in 1868-1869, vol. 17, pp. 391-395.
Halimi, et al. “Combination treatment in the management of type 2 diabetes” focus on vildagliptin and metformin as a single tablet, Vascualr Health and Risk Management, 2008, 4(3) p. 481-492.
Nielsen, L., “Incretin mimetics and DPP-IV inhibitors for the treatment of type 2 diabetes.” Drug Discovery Today, 2005, vol. 10, No. 10, pp. 703-710.
Anstee, Quentin M., “Mouse models in non-alcoholic fatty liver disease and steatohepatitis research” (2006) International Journal of Experimental Pathology, v. 87, p. 1-16.
Sarafidis, P. et al., “Cardiometabolic Syndrome and Chronic Kidney Disease: What is the link?”JCMS 2006, 1: p. 58-65.
Kim, Kwang-Rok et al., “KR-62436, 6-{2-{2-(5-cyano4,5-dihydropyrazol-1-yl)-2-oxoethylamino}ethylamino} nicotinonitrile, is a novel dipeptidyl peptidase-IV (DDP-IV inhibitor with anti-hyperglycemic activity” European Journal of Pharmacology 518, 2005, p. 63-70.
Deacon, Carolyn F., et al., “Linagliptin, a xanthine based dipeptyl peptidase-4 inhibitor with an unusual profile for the treatment of type 2 diabetes” Expert Opinion Investig. Drugs 2010, 19 (1) p. 133-140.
Lakatos, P. L., et al., “Elevated Serum Dipeptidyl IV (CD26, EC3.4.14.5) Activity in Experimental Liver Cirrhosis” European Journal of Clinical Investigation, 2000, V. 30, No. 9, p. 793-797.
Russell-Jones, D. et al., “Liraglutide vs insulin glargine and placebo in combination with metformin and sulfonylurea therapy in type 2 diabetes mellitus (LEAD-5 met+Su): a randomised controlled trial.” Diabetologia, 2009, vol. 52, pp. 2046-2055.
Dave, Rutesh H. “Overview of pharmaceutical excipients used in tablets and capsules.” Drug Topics, Oct. 24, 2008.
Abstract in English for German DE10109021, 2002.
International Search Report and Written Opinion for PCT/EP2011/054169 mailed Aug. 4, 2011.
Jones, R.M. et al., “GPR119 agonists for the treatment of type 2 diabetes”. Expert Opinion on Therapeutic Patents 2009 Informa Healthcare for GBR LNKSD—DOI: 10.1517/13543770903153878, vol. 19, No. 10, Oct. 2009, p. 1339-1359.
Sune Negre, J. M. “New Galenic Contributions to Administration Forms”. Continued Training for Hospital Pharmacists 3.2., (Publication date unavailable), Retrieved from internet on Feb. 23, 2011, http://www.ub.es/legmh/capitols/sunyenegre.pdf.
Clinical Trials: NCT00954447, View on Jun. 14, 2010. “Efficacy and Safety of Linagliptin in Combination with Insulin in Patients with Type 2 Diabetes”. <http://clinicaltrials.gov/archive/NCT00954447/2010—06—14> .
Meece, J. “When Oral Agents Fail: Optimizing Insulin Therapy in the Older Adult”. Consultant Pharmacist, The Society, Arlington, VA US. vol. 24, No. Suppl B, Jun. 1, 2009, p. 11-17.
Rosenstock, J. et al., “Alogliptin added to insulin therapy in patients with type 2 diabetes reduces HbA1c without causing weight gain or increased hypoglycaemia”. Diabetes, Obesity and Metabolishm, Dec. 2009, vol. 11. No. 12, p. 1145-1152.
Thomas, L., “Chronic treatment with the Dipeptidyl Peptidase-4 Inhibitor BI 1356[9R)-8-(3-Amino-piperidin-1-yl)-7-but-2-yny1-3-methy1-1(4-methyl-quinazolin-2-ylmethyl)-3,7-dihydro-purine-2,6-dione] Increases Basal Glucagon-Like Peptide-1 and Improves Glycemic Control in Diabetic Rodent Models” The Journal of Pharmacology and Experimental Therapeutics, Feb. 2009, vol. 328, No. 2, pp. 556-563.
Levien,T.L. et al, “New drugs in development for the treatment of diabetes”, Diabetes Spectrum, American Diabetes Association, US, vol. 22, No. 2, Jan. 1, 2009, pp. 92-106.
He, Y. L. et al., “Bioequivalence of Vildagliptin/Metformin Combination Tablets and Coadministration of Vildagliptin and Metformin as Free Combination in Healthy Subjects”. J. Clinical Pharmacology, 2007, vol. 47, No. 9, Abstracts of the 36th Annual Meeting of the American College of Clinical Pharmacology, San Francisco, CA, Abstract 116, p. 1210.
Bastin, R.J. et al., “Salt Selection and Optimization Procedures for Pharmaceutical New Chemical Entities”. Organic Process Research and Development, 2000, vol. 4, p. 427-435.
Knorr, M. et al., “Comparison of Direct and Indirect Antioxidant Effects of Linagliptin (BI 1356, Ondero) with other Gliptins—Evidence for Anti-Inflammatory Properties of Linagliptin”. Free Radical Biology and medicine, Elsevier Science, U.S. vol. 49, Oct. 23, 2010, p. S197.
International Search Report and Written Opinion for PCT/EP2010/064691 mailed Apr. 6, 2011.
Demuth, H-U. et al., “Type 2 diabetes—Therapy with dipeptidyl peptidase IV inhibitors”. Biochimica et Biophysica Acta, vol. 1751(1), 2005, p. 33-44.
Hunziker, D. et al, “Inhibitors of DPP IV-recent advances and structural views”, Current Topics in Medicinal Chemistry, 2005, vol. 5 issue 16, pp. 1623-1637.
Gallwitz, B. “Sitagliptin with Metformin: Profile of a Combination for the Treatment of Type 2 Diabetes”. Drugs of Today, Oct. 2007, 43(10), p. 681-689.
Graefe-Mody, et al; Evaluation of the Potential for Steady-State Pharmacokinetic and Phamacodynamic Interactions Between the DPP-4 Inhibitor Linagliptin and Metformin in Healthy Subjects; Currents Medical Research and Opinion (2009) vol. 25, No. 8 pp. 1963-1972.
Conarello, S.L. et al; “Mice lacking dipeptidyl peptidase IV are protected against obesity and insulin resistance,” PNAS 2003; 100:6825-6830; originally published online May 14, 2003; information current as of Dec. 2006. www.pnas.org/cgi/content/full/100/11/6825.
European Search Report for EP 08 15 9141 mailed Apr. 6, 2009 (European counterpart of U.S. Appl. No. 12/143,128).
International Search Report for PCT/EP03/12821 mailed Mar. 30, 2004.
International Search Report for PCT/EP03/13648 mailed Apr. 5, 2004.
International Search Report for PCT/EP2007/058181 mailed Nov. 28, 2007.
International Search Report and Written Opinion for PCT/EP2012/063852 mailed Sep. 6, 2012.
Uhlig-Laske, B. et al., “Linagliptin, a Potent and Selective DPP-4 Inhibitior, is Safe and Efficacious in Patients with Inadequately Controlled Type 2 Diabetes Despite Metformin Therapy”. 535-P Clinical Therapeutics/New Technology—Pharmacologic Treatment of Diabetes or Its Complications, Posters, vol. 58, Jun. 5, 2009, p. A143.
International Search Report and Written Opinion for PCT/EP2011/057256 mailed Jul. 22, 2011.
Kibbe, A., Editor. Handbook of Pharmaceutical Excipients, Third Edition, Copovidon—pp. 196-197, Date of Revision: Dec. 16, 2008. Mannitol—pp. 424-425, Date of Revision: Feb. 19, 2009, Published in 2009.
Mayo Clinic Staff: “Nonalchoholic fatty liver disease: Prevention” [retrieved on Nov. 30, 2012]. retrieved from the Internet: ,URL: http://www.mayoclinic.com/health/nonalcoholic-fatty-liver-disease/DS00577DSECTION=prevention>.
Shanks, N. et al., Are animal models predictive for humans?, PEHM, Philosophy, Ethics, and Humanaities in Medicine, 4(2), 2009, 1-20.
Hermann, Robert, et al; Lack of Association of PAX4 Gene with Type 1 Diabetes in the Hungarian Populations; Diabetes (2005) vol. 54 pp. 2816-2819.
Ahren, Bo, et al; Improved Meal-Related b-Cell Function and Insulin Sensitivity by the Dipeptidyl Peptidase-IV Inhibitor Vildagliptin in Metformin-Treated Patients with Type 2 Diabetes Over 1 Year; Diabetes Care (2005) vol. 28, No. 8 pp. 1936-1940.
Brazg, Ronald, et al; Effect of Adding MK-0431 to On-Going Metforming Therapy in Type 2 Diabetic Patients Who Have Inadequate Glycemic Control on Metformin; Diabetes ADA (2005) vol. 54, Suppl. 1 p. A3.
Gallwitz, B. et al., DPP IV inhibitors for the Treatment of Type 2 Diabetes; Diabetes Frontier (2007) vol. 18, No. 6 pp. 636-642.
Garber, A. J. et al., “Effects of Vildagliptin on Glucose Control in Patients with Type 2 Diabetes Inadequately Controlled with a Sulphonylurea”. Diabetes, Obesity and Metabolism (2008) vol. 10 pp. 1047-1055.
Hermansen, K., “Efficacy and Safety of the Dipeptidyl Peptidase-4 Inhibitor, Sitagliptin, in Patients with Type 2 Diabetes Mellitus Inadequately Controlled on Glimepiride Alone or on Glimepiride and Metformin”. Diabetes, Obesity and Metabolism (2007) vol. 9, No. 5 pp. 733-745.
Hayashi, Michio., “Recipe for Oral Hypoglycemic Agents to Pathological Condition” Pharmacy (2006) vol. 57, No. 9 pp. 2735-2739.
Komori, Kiyoshi., “Treatment of Diabetes in Patients for Whom Metforming Treatment is Not Appropriate” Modern Physician (2008) vol. 27, No. 2 pp. 163-165.
Matsumiya, Teruhiko, et al., “Therapeutic Drugs for Clinicians” Diagnosis and Treatment (2008) vol. 96, No. 2 pp. 389-390.
Shintani, Maki, et al., “Insulin Resistance and Genes” Circulatory Sciences (1997) vol. 17, No. 12 pp. 1186-1188.
Kharkevich, D. A., “Educational Literature” Pharmacology (1987) Third Edition, Meditsina Press, Moscow pp. 47-48.
Herman, Gary et al. “Co-Administration of MK-0431 and Metformin in Patients with Type 2 Diabetes Does Not Alter the Pharmacokinetics of MK-0431 or Metformin” (2005) Journal of American Diabetes Association vol. 54, Supplement 1, 3 pgs.
Clinical Trial NCT00622284 (published online at clinicaltrials.gov on Feb. 22, 2008).
Anstee, Quentin M. et al. “Mouse models in non-alcholic fatty liver disease and steatohepatitis research” (2006) International Journal of Expermental Pathology, vol. 87, pp. 1-16.
Nauck, M. A. et al., “Efficacy and Safety of Adding the Dipeptidyl Peptidase-4 Inhibitor Alogliptin to Metformin Therapy in Patients with Type 2 Diabetes Inadequately Controlled with Metformin Monotherapy: A Multicentre, Randomised, Double-Blind, Placebo-Cotrolled Study.” Clinical Practice, 2008, vol. 63, No. 1, pp. 46-55.
Bosi, E. et al., “Effects of Vildagliptin on Glucose Control Over 24 Weeks in Patients With Type 2 Diabetes Inadequately Controlled With Metformin.” Diabetes Care, 2007, vol. 30, No. 4, pp. 890-895.
Charbonnel, B. et al., “Efficacy and Safety of the Dipeptidyl Peptidase-4 Inhibitor Sitagliptin Added to Ongoing Metformin Therapy in Patients With Type 2 Diabetes Inadequately Controlled With Metformin Alone.” Diabetes Care, 2006, vol. 29, No. 12, pp. 2638-2643.
Nauck, M. A. et al., “Efficacy and Safety of the Dipeptidyl Peptidase-4 Inhibitor, Sitagliptin, Compared with the Sulfonylurea, Glipizide, in Patients with Type 2 Diabetes Inaduately Controlled on Metformin alone: A Randomized, Double-Blind, Non-Inferiority Trial.” Diabetes Obesity and Metabolism, 2007, vol. 9, No. 2, pps. 194-205.
Huttner, S. et al., “Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of Single Oral Doses of BI 1356, an Inhibitor of Dipeptidyl Peptidase 4, in Healthy Male Volunteers.” Journal of Clinical Pharmacology, 2008, vol. 48, No. 10, pp. 1171-1178.
Tounyoubyou, “Symposium-19: Future Perspectives on Incretion Therapy in Diabetes.” 2008, vol. 51, Suppl. 1, p. S-71, S19-2.
Sarafidis, Panteleimon et al. “Cardiometabolic Syndrome and Chronic Kidney Disease: What is the Link?” JCMS (2006) 1: pp. 58-65.
Kim, Kwang-Rok et al. “KR-62436, 6-{2-[2-(5-cyano-4,5-dihydropyrazol-1-yl)-2-oxoethylamino]ethylamino} nicotinonitrile, is a novel dipeptidyl peptidase-IV (DPP-IV) inhibitor with anti-hyperglycemic activity” European Journal of Pharmacology 518 (2005) pp. 63-70.
Deacon, Carolyn F. et al. “Linaglipitn, a xanthine-based dipeptidyl peptidase-4 inhibitor with an unusual profile for the treatment of type 2 diabetes” Expert Opin. Investig. Drugs (2010) 19(1): 133-140.
Abstract in English for JP 2002/348279, Dec. 4, 2002.
Abstract in English for JP 2003/286287, Oct. 10, 2003.
Adebowale, K.O. et al., “Modification and properties of African yam bean (Sphenostylis stenocarpa Hochst. Ex A. Rich.) Harms starch I: Heat moisture treatments and annealing.” Food Hydrocolloids, 2009, vol. 23, No. 7, pp. 1947-1957.
Alter, M. et al., “DPP-4 Inhibition on Top of Angiotensin Receptor Bockade Offers a New Therapeutic Approach for Diabetic Nephropathy.” Kidney and Blood Pressue Research, 2012, vol. 36, No. 1, pp. 119-130.
American Diabetes Association, “Standards of Medical Care in Diabetes—2008.” Diabetes Care, Jan. 2008, vol. 31, Supplement 1, pp. S12-S54.
Anonymous, Clinicaltrials.gov, 2008, No. NCT00622284, “Efficacy and Safety of BI 1356 in combination with metformin in patients with type 2 diabetes” p. 1-5.
Balbach, S. et al., Pharmaceutical evaluation of early development candidates “the 100 mg-approach.” International Journal of Pharmaceutics, 2004, vol. 275, pp. 1-12.
Bernstein, Joel “Polymorphism in Molecular Crystals.” Oxford University Press, 2002, p. 9.
Borloo, M. et al. “Dipeptidyl Peptidase IV: Development, Design, Synthesis and Biological Evaluation of Inhibitors.” 1994, Universitaire Instelling Antwerpen, vol. 56, pp. 57-88.
Byrn, Stephen R. “Solid-State Chemistry of Drugs.” Academic Press, 1982, pp. 1-27.
Campbell, R. Keith “Rationale for Dipeptidyl Peptidase 4 Inhibitors: A New Class of Oral Agents for the Treatment of Type 2 Diabetes Mellitus.” The Annals of Pharmacotherapy, Jan. 2007, vol. 41, pp. 51-60.
Chan, J.C. et al., “Safety and efficacy of sitagliptin in patients with type 2 diabetes and chronic renal insufficiency.” 2008, Diabetes, Obesity and Metabolism, vol. 10, pp. 545-555.
Chaykovska, L. et al., “Effects of DPP-4 Inhibitors on the Heart in a Rat Model of Uremic Cardiomyopathy.” www.plosone.org, 2011, vol. 6, No. 11, p. e27861.
Chemical Abstracts Service, Database Accession number No. RN 668270-12-01, 2004, “1H-Purine-2,6,dione, 8-[(3R)-3-amino-1-piperidinyl]-7-(2-butyn-1-yl)-3,7-diydro-3-methyl-1-[(4-methyl-2-quinazolinyl)methyl]”.
Diabetes Health Center, “Diabetic Retinopathy—Prevention.” Retrieved online Mar. 22, 2011. www.diabetes.webmd.com/tc/diabetic-retinopathy-prevention <http://www.diabetes.webmd.com/tc/diabetic-retinopathy-prevention?print=true>.
Diabetic Neuropathy, Retrieved online Mar. 6, 2012. www.mayoclinic.com/health/diabetic-neuropathy/DS01045/METHOD=print&DSE <http://www.mayoclinic.com/health/diabetic-neuropathy/DS01045/METHOD=print&DSE>.
Dunitz, J. et al., “Disappearing Polymorphs.” Acc. Chem. Res. 1995, vol. 28, No. 4, pp. 193-200.
eMedicine Health, “Diabetes Causes.” Retrieved from internet on Aug. 22, 2013. <http://www.onhealth.com/diabetes—health/page3.htm#diabetes—causes>.
Eucreas Scientific Discussion, 2007, p. 1-27, www.emea.europa.eu/humandocs/PD/Fs/EPAR/eucreas/H-807-en6.pdf, Anonymous.
Forst, T. et al., “The Novel, Potent, and Selective DPP-4 Inhibitor BI 1356 Significantly Lowers HbA1c after only 4 weeks of Treatment in Patients with Type 2 Diabetes.” Diabetes, Jun. 2007, Poster No. 0594P.
Fukushima et al., Drug for Treating Type II Diabetes (6), “action-mechanism of DPP-IV inhibitor and the availability thereof” Mebio, 2009, vol. 26, No. 8, p. 50-58.
Graefe-Mody, U. et al., “Effect of Renal Impairment on the Pharmacokinetics of the Dipeptidyl Peptidase-4 Inhibitor Linagliptin.” Diabetes, Obesity and Metabolism, 2011, pp. 939-946.
Groop, P.-H. et al., “Effects of the DPP-4 Inhibitor Linagliptin on Albuminuria in Patients with Type 2 Diabetes and Diabetic Nephropathy.” 48th EASD Annual Meeting, Berlin, Abstract 36, Oct. 2012, URL:http://www.abstractsonline.com/Plan/ViewAbstract.aspx?sKey=8b8817b9-ge98-4695-b9af-b6878e96a921&cKey=421edb9c-b948-48f8-b2.
Hansen, H. et al., “Co-Administration of the DPP-4 Inhibitor Linagliptin and Native GLP-1 Induced Body Weight Loss and Appetite Suppression.” 73rd Annual Meeting Science Session, ADA, Chicago, Jun. 21, 2013.
Headland, K. et al., “The Effect of Combination Linagliptin and Voglibose on Glucose Control and Body Weight.” 73rd Annual Meeting Science Session, ADA, Chicago, Jun. 21, 2013.
Heihachiro, A. et al., “Synthesis of Prolyl Endopeptidase Inhibitors and Evaluation of Their Structure-Activity Relationships: In Vitro Inhibition of Prolyl Endopeptidase from Canine Brain.” 1993, Chemical and Pharmaceutical Bulletin, vol. 41, pp. 1583-1588.
Heise, T. et al., “Treatment with BI 1356, a Novel and Potent DPP-IV Inhibitor, Significantly Reduces Glucose Excursions after and oGTT in Patients with Type 2 Diabetes.” A Journal of the American Diabetes Association, Jun. 2007, vol. 56, Supplement 1, Poster No. 0588P.
Herman, G. A. et al., “Dipeptidyl Peptidase-4 Inhibitors for the Treatment of Type 2 Diabetes: Focus on Sitagliptin.” Clinical Pharmacology and Therapeutics, 2007, vol. 81, No. 5, pp. 761-767.
Hilficker, R. et al., “Relevance of Solid-state Properties for Pharmaceutical Products.” Polymorphism in the Pharmaceutical Industry, 2006, Chapter 1, pp. 1-19.
Johansen, O.E. et al., “b-cell Function in Latnet Autoimmune Diabetes in Adults (LADA) Treated with Linagliptin Versus Glimepiride: Exploratory Results from a Two Year Double-Blind, Randomized, Controlled Study.” www.abstractsonline.com, Jun. 10, 2012, XP-002708003.
Kidney Disease (Nephropathy), Retrieved online May 13, 2013, www.diabetes.org/living-with-diabetes/complications/kidney-disease-nephropathy.html <www.diabetes.org/living-with-diabetes/complications/kidney-disease-nephropathy.html>.
Kroller-Schön, S. et al., “Glucose-independent Improvement of Vascular Dysfunction in Experimental Sepsis by Dipeptidyl Peptidase-4 Inhibition.” Cardiovascular Research, 2012, vol. 96, No. 1, pp. 140-149.
Lovshin, J.A. et al., “Incretin-based therapies for type 2 diabetes mellitus.” Nature Reviews Endocrinology, 2009, vol. 5, pp. 262-269.
Nathan, D. et al., “Management of Hyperglycemia in Type 2 Diabetes: A Consensus Algorithm for the Initiation and Adjustment of Therapy.” Diabetes Care, Aug. 2006, vol. 29, No. 8, pp. 1963-1972.
Nielsen, L., “Incretin Mimetics and DPP-IV Inhibitors for the Treatment of Type 2 Diabetes.” DDT, 2005, vol. 10, No. 10, pp. 703-710.
Pratley, R. et al., “Inhibition of DPP-4: a new therapeutic approach for the treatment of type 2 diabetes.” Current Medical Research and Opinion, 2007, vol. 23, No. 4, pp. 919-931.
Rosenstock, et al., Sitagliptin Study 019 Groups, Efficacy and safety of the dipeptidyl peptidase-4 inhibitor sitagliptin, Clinical Therepeutics, 2006, vol. 28, Issue 10, p. 1556-1568.
Sharkovska, Y., et al., “DPP-4 Inhibition with Linagliptin Delays the Progression of Diabetic Nephropathy in db/db Mice.” 48th EASD Annual Meeting, Berlin, Abstract 35, Oct. 2012, URL:http://www.abstractsonline.com/Plan/ViewAbstract.aspx?sKey=Ob0017b9-ge90-4695-b9af-b6870e96a921&cKey=8eff47ae-db49-4c36-al42-848ac038c405&mKey=(2DBFCAF7-1539-42D5-8.
Singhal, D. et al., “Drug polymorphism and dosage form design: a practical perspective.” Advanced Drug Delivery Reviews, 2004, vol. 56, pp. 335-347.
Third Party Observation for application No. EP20070728655, May 13, 2013.
Tsujihata, et al., “TAK-875, an orally available G protein-Coupled receptor 40/Free fatty acid receptor 1 Agonist, Enhances Glucose Dependent Insulin Secretion and improves both Postprandial and Fasting hyperglycemic in type 2 Diabetic rats”, J. Pharm Exp. 2011, vol. 339, No. 1, p. 228-237.
Tsuprykov, O. et al., Linagliptin is as Efficacious Telmisartan in Preventing Renal Disease Progression in Rats with 5/6 Nephrectomy, 73rd Annual Meeting Science Session, ADA, Chicago, Jun. 2013 URL:http://wwww.abstractsonline.com/Plan/ViewAbstract.aspx?sKey=e68ac573-fe45-4c2f-9485-6278854fc18b&cKey=3c387569-84de-4f8c-b8.
Related Publications (1)
Number Date Country
20120129874 A1 May 2012 US