Synonyms: (2S,4R)-1-(Benzyloxycarbonyl)-4-hydroxyproline;(2S,4R)-4-Hydroxypyrrolidine-1,2-dicarboxylic acid 1-benzyl ester;1-(Benzyloxycarbonyl)-trans-4-hydroxy-(S)-proline;N-(Benzyloxycarbonyl)-trans-4-Hydroxy-D-proline;N-Carbobenzoxy-4-hydroxy-L-proline;Z-Hyp-OH;1,2-Pyrrolidinedicarboxylic acid, 4-hydroxy-, 1-benzyl ester, L-trans-(6CI,8CI);