methyl (2S)-4-amino-2-[(2-methylpropan-2-yl)oxycarbonylamino]-4-oxobutanoate

Boc-β-nitro-Ala-OMe

二碳酸二叔丁酯

methyl 2,3-diaminopropanoate,hydrochloride

Nα-Boc-Nβ-Cbz-amino-L-alanine methyl ester