1,2-Pyrrolidinedicarboxylic acid, 4,4-dimethyl-, 1-(1,1-dimethylethyl) ester, (2S)-
1-(1,1-Dimethylethyl) (2S)-4,4-dimethyl-1,2-pyrrolidinedicarboxylate
(2S)-1-[(tert-Butoxy)carbonyl]-4,4-dimethylpyrrolidine-2-carboxylic acid
(S)-1-(tert-Butoxycarbonyl)-4,4-dimethylpyrrolidine-2-carboxylicacid