2-dibenzylamino-5-oxo-pentanoic acid benzyl ester

(2S,9R)-2-(tert-butoxycarbonylamino)-9-(tert-butyldimethylsilyloxy)-8-oxo-6-decanoic acid

Fmoc-D-脯氨酸

methyl 2-[(tert-butoxycarbonyl)amino]hex-5-enoate