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(2007/10/02)4-nitrobenzyl chloride
hydroxymethylphosphonic acid
O-(p-nitrobenzyl)-N,N'-dicyclohexylisourea
trifluoromethanesulfonic acid [bis(4-nitrophenylmethoxy)phosphinyl]methyl ester
(S)-2-Benzyloxycarbonylamino-4-{(S)-1-[bis-(4-nitro-benzyloxy)-phosphorylmethoxycarbonyl]-propylcarbamoyl}-butyric acid benzyl ester
(S)-2-Benzyloxycarbonylamino-4-{(S)-1-[bis-(4-nitro-benzyloxy)-phosphorylmethoxycarbonyl]-ethylcarbamoyl}-butyric acid benzyl ester
2-Benzyloxycarbonylamino-pentanedioic acid 1-benzyl ester 5-[bis-(4-nitro-benzyloxy)-phosphorylmethyl] ester
2-Benzyloxycarbonylamino-pentanedioic acid 5-[bis-(4-nitro-benzyloxy)-phosphorylmethyl] ester 1-tert-butyl ester