Ritonavir EP Impurity E

Chemical Name: Thiazol-5-yl-methyl [(1S,2S,4S)-1-benzyl-2-hydroxy-4-[[(2S)-2-[[[[2-(1-hydroxy-1-methylethyl)thiazol-4-yl]methyl]methylcarbamoyl]amino]-3-methylbutanoyl]amino]-5-phenylpentyl]carbamate (as per EP); Thiazol-5-ylmethyl (2S,3S,5S)-3-hydroxy-5-[(S)-2-(3-{[2-(2-hydroxypropan-2-yl)thiazol-4-yl]methyl}-3-methylureido)-3-methylbutanamido]-1,6-diphenylhexan-2-ylcarbamate (as per USP)

Smile: O=C(OCC1=CN=CS1)N[C@@H](CC2=CC=CC=C2)[C@@H](O)C[C@H](CC3=CC=CC=C3)NC([C@H](C(C)C)NC(N(C)CC4=CSC(C(C)(O)C)=N4)=O)=O