1 D2U (2~{S})-2-[[(2~{R})-2-[(3,5-dimethylphenyl)carbonyl-methyl-amino]-3-(4-phenylphenyl)propanoyl]amino]-3-(1~{H}-indol-3-yl)propanoic acid 1.000 2 IRL (2r)-2-({(2s)-3-(biphenyl-4-yl)-2-[(3,5-dimethylbenzoyl)(methyl)amino]propanoyl}amino)-3-(1h-indol-3-yl)propanoic acid (non-preferred name) 1.000