Synonyms: L-Proline,4-(phenylmethoxy)-, methyl ester, hydrochloride, (4R)- (9CI); L-Proline,4-(phenylmethoxy)-, methyl ester, hydrochloride, trans-; Methyl(4R)-4-(benzyloxy)-L-prolinate hydrochloride; trans-4-Benzyloxy-L-prolinemethyl ester hydrochloride