1 3JX 4'-[(2,3-dimethyl-5-{[(1s)-1-(4-nitrophenyl)ethyl]carbamoyl}-1h-indol-1-yl)methyl]biphenyl-2-carboxylic acid 1.000 2 3K2 4'-[(2,3-dimethyl-5-{[(1r)-1-(4-nitrophenyl)ethyl]carbamoyl}-1h-indol-1-yl)methyl]biphenyl-2-carboxylic acid 1.000 3 538 4'-[(2,3-dimethyl-5-{[(1s)-1-phenylpropyl]carbamoyl}-1h-indol-1-yl)methyl]biphenyl-2-carboxylic acid 0.905