... sitagliptin intermediate and sitagliptin: 486460-32-6 Sitagliptin 654671-78-0 Sitagliptin phosphate 654671-77-9 Sitagliptin phosphate monohydrate 767340-03-4 ... (2Z)-4-Oxo-4-[3-(trifluoromethyl)-5,6-dihydro-[1,2 ... -[1,2,4]triazolo[4,3-a]pyrazine hydrochloride 486460-21-3 (Trifluoromethyl)-5,6,7,8-tetrahydro-[1,2,4]triazolo ...