(R)-N-BOC-alpha-Ethylalanine

N-BOC-2-甲基-D-丝氨酸甲酯

(R)-2-((tert-butoxycarbonyl)amino)-3-((tert-butyldiphenylsilyl)oxy)-2-methyl-1-propanol

(R)-2-tert-Butoxycarbonylamino-3-(2,2-dimethyl-propionyloxy)-2-methyl-propionic acid methyl ester

(R)-2-N-(tert-butoxycarbonyl)amino-2-methyl-3-hydroxypropanoic acid methyl ester