Chemical Name:Tert-butyl 2-[(2S,3S)-3-(tert-butoxyformamido)-2-hydroxy-4-phenylbutyl]-2-[[4-(pyridin-2-yl)phenyl]methyl]hydrazine-1-carboxylate (as per EP) ; Tert-Butyl 2-{(2S,3S)-3-[(tert-butoxycarbonyl)amino]-2-hydroxy-4-phenylbutyl}-2-[4-(pyridin-2-yl)benzyl]hydrazinecarboxylate (as per USP)
