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

Smile: O[C@H]([C@H](CC1=CC=CC=C1)NC([C@@H](NC(OC)=O)C(C)(C)C)=O)CN(CC2=CC=C(C3=NC=CC=C3)C=C2)/N=C/C4=CC=C(C5=CC=CC=N5)C=C4