Lopinavir Impurity 1

Chemical Name: (S)-N-((2S,4S,5S)-5-(2-(2,6-dimethylphenoxy)acetamido)-4-hydroxy-1,6-diphenylhexan-2-yl)-3-methyl-2-(2-oxo-3,6-dihydropyrimidin-1(2H)-yl)butanamide

Smile: O=C([C@H](C(C)C)N1CC=CNC1=O)N[C@@H](CC2=CC=CC=C2)C[C@H](O)[C@@H](NC(COC3=C(C)C=CC=C3C)=O)CC4=CC=CC=C4