申请人:Pandey Bipin
公开号:US20140051856A1
公开(公告)日:2014-02-20
The present invention discloses new salts of (2R)-4-oxo-4-[3-(trifluoromethyl)-5,6-dihydro[1,2,4]-triazolo[4,3-a]pyrazin-7(8H)-yl]-1-(2,4,5-trifluorophenyl)butan-2-amine i.e. gentisate, adipate and trifluoro acetic acid salts. The invention also describes the new. crystalline and amorphous forms of (2R)-4-oxo-4-[3-(trifluoromethyl)-5,6-dihydro[1,2,4]-triazolo[4,3-a]pyrazin-7(8H)-yl]-1-(2,4,5-trifluorophenyl)butan-2-amine gentisate. The present invention also discloses novel crystalline salt form of (2R)-4-oxo-4-[3-(trifluoromethyl)-5,6-dihydro[1,2,4]-triazolo[4,3-a]pyrazin-7(8H)-yl]-1-(2,4,5-trifluorophenyl)butan-2-amine hydrochloride and novel crystalline and amorphous salt forms of besylate and process for their preparation and isolation.
本发明揭示了(2R)-4-氧基-4-[3-(三氟甲基)-5,6-二氢[1,2,4]-三唑并[4,3-a]吡嗪-7(8H)-基]-1-(2,4,5-三氟苯基)丁-2-胺即吉替酸盐、己二酸盐和三氟乙酸盐的新盐。本发明还描述了(2R)-4-氧基-4-[3-(三氟甲基)-5,6-二氢[1,2,4]-三唑并[4,3-a]吡嗪-7(8H)-基]-1-(2,4,5-三氟苯基)丁-2-胺吉替酸的新晶体和非晶体形式。本发明还揭示了(2R)-4-氧基-4-[3-(三氟甲基)-5,6-二氢[1,2,4]-三唑并[4,3-a]吡嗪-7(8H)-基]-1-(2,4,5-三氟苯基)丁-2-胺盐酸盐的新晶体盐形式以及苯磺酸盐的新晶体和非晶体盐形式及其制备和分离方法。