Ethyl (2S)-2-[(3S,11aS)-3-methyl-1,4-dioxo-1H,2H,3H,4H,6H,11H,11ah-piperazino[1,2-b]isoquinolin-2-yl]-4-phenylbutanoate

quinapril usp rc a ; quinapril related compound a ; (αs,3s,11as)-1,3,4,6,11,11a-hexahydro-3-methyl-1,4-dioxo-α-(2-phenylethyl)-2h-pyrazino[1,2-b]isoquinoline-2-acetic acid ; quinapril ep impurity d ; pd 109488 ; (αs,3s,11as)-1,3,4,6,11,11a-hexahydro-3-methyl-1,4-dioxo-α-(2-phenylethyl)-2h-pyrazino[1,2-b]isoquinoline-2-acetic acid ethyl ester ; 2h-pyrazino[1,2-b]isoquinoline-2-aceticacid, 1,3,4,6,11,11a-hexahydro-3-methyl-1,4-dioxo-a-(2-phenylethyl)-, ethyl ester, (as,3s,11as)- ; (as,3s,11as)-1,3,4,6,11,11a-hexahydro-3-methyl-1,4-dioxo-a-(2-phenylethyl)-2h-pyrazino[1,2-b]isoquinoline-2-acetic acid ; (as,3s,11as)-1,3,4,6,11,11a-hexahydro-3-methyl-1,4-dioxo-α-(2-phenylethyl)-2h-pyrazino[1,2-β]isoquinoline-2-acetic acid ; 2h-pyrazino[1,2-b]isoquinoline-2-aceticacid, 1,3,4,6,11,11a-hexahydro-3-methyl-1,4-dioxo-a-(2-phenylethyl)-, ethyl ester, [3s-[2(r*),3a,11ab]]- ; (alphas,3s,11as)-1,3,4,6,11,11a-hexahydro-3-methyl-1,4-dioxo-alpha-(2-phenylethyl)-2h-pyrazino[1,2-b]isoquinoline-2-acetic acid ethyl ester ; quinapril diketopiperazine