methyl (4S)-5-azido-4-[(tert-butoxycarbonyl)amino]pentanoate

tert-butyl (S)-(1-(benzyloxy)-6-oxopiperidin-3-yl)carbamate

二碳酸二叔丁酯

L-焦谷氨醇

[(2S)-5-oxopyrrolidin-2-yl]methyl methanesulfonate