Atazanavir Impurity 16

Chemical Name: (5S,10S,11S,14S)-11-benzyl-5,14-di-tert-butyl-3,6,13,16-tetraoxo-8-(4-(pyridin-2-yl)benzyl)-2,17-dioxa-4,7,8,12,15-pentaazaoctadecan-10-yl (S)-2-((methoxycarbonyl)amino)-3,3-dimethylbutanoate

Smile: O=C([C@H](C(C)(C)C)NC(OC)=O)O[C@@H](CN(NC([C@H](C(C)(C)C)NC(OC)=O)=O)CC1=CC=C(C2=CC=CC=N2)C=C1)[C@@H](NC([C@H](C(C)(C)C)NC(OC)=O)=O)CC3=CC=CC=C3