benzyl 2-[(3S)-3-[(2-methylpropan-2-yl)oxycarbonylamino]-2-oxopiperidin-1-yl]acetate

Nα-(tert-butoxycarbonyl)-Nδ-(carboxymethyl)ornithine

N-叔丁氧羰基-N'-苄氧羰基-L-鸟氨酸

Boc-L-鸟氨酸

(S)-3-(Boc-氨基)-2-哌啶酮