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(2008/09/18)benzyl 2-amino-4-methyl-1H-imidazole-1-carboxylate
N-(N-(benzyloxycarbonyl)carbamimidoyl)-5-formyl-1H-pyrrole-2-carboxamide
benzyl (S)-2-((N-((benzyloxy)carbonyl)carbamimidoyl)carbamoyl)pyrrolidine-1-carboxylate
benzyl 2-amino-4-ethyl-1H-imidazole-1-carboxylate