1 4ZK 3,4-dichloro-5-(5-hydroxypyridin-3-yl)-L-phenylalanine 1.000 2 E42 (R)-2-amino-3-(3'-hydroxybiphenyl-3-yl)propanoic acid 0.818 3 0RA 3-[3-(1h-pyrrolo[2,3-B]pyridin-5-yl)phenyl]propanoic acid 0.708