Benzenebutanoic acid, α-[[(1S)-1-carboxy-5-[(2,2,2-trifluoroacetyl)amino]pentyl]amino]-, 1-ethyl ester, (αS)-
Benzenebutanoic acid, α-[[1-carboxy-5-[(trifluoroacetyl)amino]pentyl]amino]-, monoethyl ester, [S-(R*,R*)]-
Benzenebutanoic acid, α-[[(1S)-1-carboxy-5-[(trifluoroacetyl)amino]pentyl]amino]-, monoethyl ester, (αS)-
1-Ethyl (αS)-α-[[(1S)-1-carboxy-5-[(2,2,2-trifluoroacetyl)amino]pentyl]amino]benzenebutanoate