115887-84-8
(2R,3S)-2-(N-benzyloxycarbonyl)amino-3-hydroxy-4-butanolide
→
246252-56-2
(4S,1'S)-4-[1'-(N-benzyloxycarbonyl)amino-2'-hydroxyethyl]-2,2-dimethyl-1,3-dioxolane
159878-02-1
[(1R,2S)-3-氯-2-羟基-1-[(苯基硫)甲基]丙基]氨基甲酸苄酯