Abstract: The present disclosure relates to an improved process for the preparation of fluticasone propionate.

Abstract: The present disclosure relates to an improved process for the purification of fluticasone propionate by: a) dissolving fluticasone propionate in a ketone solvent to produce a mixture, b) heating the mixture slowly for 1-2 hours to get a clear solution, c) adding water to the step (b) solution at 50-60° C., d) cooling to ?5° C. to 10° C., and e) isolating fluticasone propionate.

Abstract: The present invention relates to novel processes for the preparation of enantiomerically enriched ?-amino acid derivatives such as ?-amino esters useful for the synthesis of enantiomerically enriched biologically active molecules such as sitagliptin. The key step involves the resolution of the racemate with mandelic acid.

Abstract: The present invention relates to processes for the preparation of 4-hydroxy-??-[[[6-(4-phenylbutoxy)hexyl]amino]methyl]-1,3-benzenedimethanol 1-hydroxy-2-naphthoate (salmeterol xinafoate) (12a), the preparation of 4-hydroxy-??-[[[6-(4-phenylbutoxy)hexyl]amino]methyl]-1,3-benzenedimethanol (salmeterol) (11), the preparation of protected N-[6-(4-phenylbutoxy)hexyl]amine intermediates (7), and the preparation of 6-substituted (4-phenylbutoxy)hexane intermediates (5), shown below, wherein X is a leaving group and Pg is a protecting group.

Abstract: The present invention relates to novel processes for the preparation of enantiomerically enriched ?-amino acid derivatives such as ?-amino esters useful for the synthesis of enantiomerically enriched biologically active molecules such as sitagliptin. The key step involves the resolution of the racemate with mandelic acid.

Abstract: The present invention relates to a novel process for the preparation of ?-amino acids, such as (±)-3-(aminomethyl)-5-methyl-hexanoic acid (1), which is a key intermediate in the preparation of the potent anticonvulsant pregabalin, (S)-(+)-3-(aminomethyl)-5-methyl-hexanoic acid (2), and its analogues.

Abstract: The present invention relates to novel crystalline forms of the platelet aggregation inhibitor (+)-(S)-methyl-2-(2-chlorophenyl)-(6,7-dihydro-4H-thieno[3,2-c]pyrid-5-yl)acetate, clopidogrel (1), in the form of hydrogen bromide salts, identified as polymorph forms 1, 2 and 3. The present invention further relates to processes for preparing such forms, pharmaceutical compositions comprising such forms, and uses for such forms and compositions. The pharmaceutical compositions may be used, in particular, for inhibiting platelet aggregation or for treating, preventing or managing thrombosis, atherothrombosis, an atherothrombotic event, ischaemic stroke, myocardial infarction, non-Q-wave myocardial infarction, atherosclerosis, peripheral arterial disease, or unstable angina. The present invention also relates to methods of treating said disorders. Formula (1).

Abstract: The present invention relates to novel crystalline forms of the platelet aggregation inhibitor (+)-(S)-methyl-2-(2-chlorophenyl)-(6,7-dihydro-4H-thieno[3,2-c]pyrid-5-yl)acetate, clopidogrel (1), in the form of hydrogen bromide salts, identified as polymorph forms 1, 2 and 3. The present invention further relates to processes for preparing such forms, pharmaceutical compositions comprising such forms, and uses for such forms and compositions. The pharmaceutical compositions may be used, in particular, for inhibiting platelet aggregation or for treating, preventing or managing thrombosis, atherothrombosis, an atherothrombotic event, ischaemic stroke, myocardial infarction, non-Q-wave myocardial infarction, atherosclerosis, peripheral arterial disease, or unstable angina. The present invention also relates to methods of treating said disorders. Formula (1).