benzyl (S)-2-{[(4R,5R)-5-(biphenyl-2-ylcarbamoyl)-[1,3]dioxolane-4-carbonyl]amino}-3-[4-(2,6-dichlorobenzyloxy)phenyl]propionate 在
甲醇 、 palladium 10% on activated carbon 作用下,
以87%的产率得到(S)-2-{[(4R,5R)-5-(biphenyl-2-ylcarbamoyl)-[1,3]dioxolane-4-carbonyl]amino}-3-[4-(2,6-dichlorobenzyloxy)phenyl]propionic acid