Synonyms: ;.methyl (2S,4R)-1-(tert-butoxycarbonyl)-4-(tert-butyldimethylsilyloxy)pyrrolidine-2-carboxylate;.(2S,4R)-4-(tert-butyldimethylsilanyloxy)pyrrolidine-1,2-dicarboxylic acid 1-tert-butyl ester 2-methyl ester;.(2S,4R)-1-tert-butyl 2-methyl 4-((tert-butyldimethylsilyl)oxy)pyrrolidine-1,2-dicarboxylate;.1-tert-butyl 2-methyl (2S,4R)-4-{[tert-butyl(dimethyl)silyl]oxy}pyrrolidine-1,2-dicarboxylate;[2S-(trans)]-N-[(1,1-dimethylethoxy)carbonyl]-4-[(1,1-dimethylethyl)dimethylsilyloxy]proline methyl ester;.(2S,4R)-1-(tert-butoxycarbonyl)-4-[(tert-butyldimethylsilyl)oxy]-2-carbomethoxypyrrolidine