Atazanavir EP Impurity I

Chemical Name: Methyl [(2S)-1-[[(2S,3S)-3-hydroxy-1-phenyl-4-[(E)-1-[[4-(pyridin-2-yl)phenyl]methyl]-2-[[4-(pyridin-2-yl)phenyl]methylidene]hydrazin-1-yl]butan-2-yl]amino]-3,3-dimethyl-1-oxobutan-2-yl]carbamate (as per EP)

Synonym: (S)-PMPA