Lisinopril EP Impurity C

Chemical Name: S,S,S-Diketopiperazine (lisinopril related compound A) ; (S)-2-((3S,8aS)-3-(4-aminobutyl)-1,4-dioxohexahydropyrrolo[1,2-a]pyrazin-2(1H)-yl)-4-phenylbutanoic acid

Smile: O=C(O)[C@@H](N(C1=O)[C@H](C(N2[C@@]1([H])CCC2)=O)CCCCN)CCC3=CC=CC=C3