1 D8D 1-[(1r)-1-cyclohexyl-2-(methylamino)-2-oxoethyl]-L-proline 1.000 2 11Q 1-(cyclohexylmethyl)-L-proline 0.789 3 87L (2s)-2-phenyl-2-pyrrol-1-yl-ethanoic acid 0.700 4 FZX 1-(phenylmethyl)imidazole-2-carboxylic acid 0.700