A PROCESS FOR PREPARING 7-[(3R)-3-AMINO-1-OXO-4-(2,4,5TRIFLUOROPHENYL)BUTYL]- 5,6,7,8-TETRAHYDRO-3-(TRIFLUOROMETHYL)-1,2,4-TRIAZOLO[4,3-A]PYRAZINE PHOSPHATE MONOHYDRATE AND ITS NOVEL CRYSTALLINE FORM H
The present invention discloses the process for preparation of 7-[(3R)-3-amino-1-oxo-4- (2,4,5trifluorophenyl)butyl]-5,6,7,8-tetrahydro-3-(trifluoromethyl)-1,2,4-triazolo[4,3- a]pyrazine phosphate monohydrate.La présente invention concerne un procédé de préparation de monohydrate de 7-[(3R)-3-amino-1-oxo-4- (2,4,5trifluorophényl)butyl]-5,6,7,8-tétrahydro-3-(trifluorométhyl)-1,2,4-triazolo[4,3- a]pyrazine phosphate.