benzyl 4-isopropyl-2,5-dioxooxazolidine-3-carboxylate

benzyl (S)-1-(tert-butoxycarbonyl)-2-methylpropylcarbamate

3,3-dibromo-1-(tert-butylamino)-1-oxobutan-2-yl ((benzyloxy)carbonyl)-L-valinate

(S)-allyl 2-(((benzyloxy)carbonyl)amino)-3-methylbutanoate

甲基N-[(苄氧基)羰基]-L-缬氨酸酯