Synonyms: 1,2-Pyrrolidinedicarboxylicacid, 4-hydroxy-, 1-(1,1-dimethylethyl) 2-methyl ester, (2S-trans)-;(2S,4R)-1-tert-Butoxycarbonyl-4-hydroxypyrrolidine-2-carboxylic acid methylester;1-tert-Butyl 2-methyl (2S,4R)-4-hydroxy-1,2-pyrrolidinedicarboxylate;1-tert-Butyl 2-methyl 4(R)-hydroxypyrrolidine-1,2(S)-dicarboxylate;Methyl(2S,4R)-1-(tert-butoxycarbonyl)-4-hydroxypyrrolidine-2-carboxylate;Methyl(4R)-N-Boc-4-hydroxy-L-prolinate;N-(tert-Butoxycarbonyl)-(2S,4R)-4-hydroxyproline methyl ester;N-tert-Butoxycarbonyl-L-hydroxyprolinemethyl ester;tert-Butyl(2S,4R)-2-(methoxycarbonyl)-4-hydroxypyrrolidine-1-carboxylate;Boc-Hyp-OMe;