p. 1142 - 1148
(2007/10/02)1-bromomethyl-4-nitro-benzene
N-<<(p-nitrobenzyl)oxy>carbonyl>thienamycin lithium salt
thienamycin
p-nitrobenzyl (5R,6S)-2-<<2-<<<(p-nitrobenzyl)oxy>carbonyl>amino>ethyl>thio>-6-<(R)-1-hydroxyethyl>carbapen-2-em-3-carboxylate
4-nitrobenzyl chloroformate