1 8PO (2r)-2-(4-hydroxyphenyl)-2-[[(2s)-2-methyl-3-sulfanyl-propanoyl]amino]ethanoic acid 1.000 2 8PL (2r)-2-(4-fluorophenyl)-2-[[(2s)-2-methyl-3-sulfanyl-propanoyl]amino]ethanoic acid 0.895 3 9DU (2r)-2-methyl-N-(phenylmethyl)-3-sulfanyl-propanamide 0.778 4 M9L (2~{R})-2-(aminocarbonylamino)-2-(4-hydroxyphenyl)ethanoic acid 0.737 5 5PG (2s)-(4-hydroxyphenyl)(methylamino)ethanoic acid 0.722 6 HGM (2r)-2-(4-hydroxyphenyl)-2-(methylamino)ethanoic acid 0.722 7 8JI N-succinyl-L-phenylglycine 0.714 8 NPG N-succinyl phenylglycine 0.714