Chemical Name: (R)-4-Oxo-4-[3-(trifluoromethyl)-5,6-dihydro[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl]-1-(2,5-difluorophenyl)butan-2-amine hydrochloride
Synonym: 4-Desfluoro Sitagliptin HCl
Smile: N[C@@H](CC(N1CC2=NN=C(C(F)(F)F)N2CC1)=O)CC3=CC(F)=CC=C3F.Cl