P-NITRO BENZYL 2(S) CARBOXY TRANS 4(R) HYDROXY L P

(2S,4R)-1-(4-Nitrobenzyloxycarbonyl)-4-hydroxyproline

TRANS-4-HYDROXY-1-(4-NITROBENZYLOXYCARBONYL)-L-PROLINE

(2S,4R)-4-Hydroxy-1,2-pyrrolidinedicarboxylic Acid 1-(4-Nitrobenzyl) Ester

1,2-Pyrrolidinedicarboxylic acid, 4-hydroxy-, 1-[(4-nitrophenyl)Methyl] ester