76969-87-4
methyl (2S)-4-bromo-2-[(2-methylpropan-2-yl)oxycarbonylamino]butanoate
→
~92%
101650-14-0
(S)-N-叔丁氧羰基-4-碘代-2-胺基丁酸甲酯
101650-17-3
(S)-(+)-2-氨基-4-溴丁酸甲酯