Lopinavir EP Impurity O

Chemical Name: (1S,3S)-1-[(1S)-1-[[2-(2,6-Dimethylphenoxy)acetyl]amino]-2-phenylethyl]-3-[[(2S)-3-methyl-2-[2-oxotetrahydropyrimidin-1(2H)-yl]butanoyl]amino]-4phenylbutyl(2S)-3-methyl-2-[2-oxotetrahydropyrimidin1(2H)-yl]butanoate (as per EP); (S)-{(2S,3S,5S)-2-[2-(2,6-Dimethylphenoxy)acetamido]-5-[(S)-3-methyl-2-(2-oxotetrahydropyrimidin-1(2H)-yl)butanamido]-1,6-diphenylhexan-3-yl} 3-methyl-2-[2-oxotetrahydropyrimidin-1(2H)-yl]butanoate (as per USP)