1 9DW (2~{S})-2-azanyl-3-[4-(2-ethyl-4-methoxy-phenyl)phenyl]propanoic acid 1.000 2 BIF (R)-2-amino-3-(4-phenylcyclohexyl)propanoic acid 0.818 3 S5A 3-[4-(4-hydroxyphenyl)phenyl]propanoic acid 0.739