英文别名2-Pentenoic acid, 4-[[(1,1-dimethylethoxy)carbonyl]amino]-, methyl ester, (2E,4S)-; methyl (E,4S)-4-[(tert-butoxycarbonyl)amino]-2-pentenoate; methyl (2E)(4S)-4-[(tert-butoxy)carbonylamino]pent-2-enoate; methyl (2E,4S)-4-(tert-butoxycarbonylamino)-2-pentenoate 
