L-Threonine, N-[(1,1-dimethylethoxy)carbonyl]-O-(1,1-dimethylethyl)-
Butyric acid, 3-tert-butoxy-2-(carboxyamino)-, N-tert-butyl ester, L-
N-[(1,1-Dimethylethoxy)carbonyl]-O-(1,1-dimethylethyl)-L-threonine
(2S,3R)-3-tert-Butoxy-2-[(tert-butoxycarbonyl)amino]butanoic acid