173908-19-5 1H-Pyrrole-2-carboxylic acid, 1-[(5-chloro-2-nitrophenyl)sulfonyl]-, phenylmethyl ester AIDS-043512 AIDS043512 Benzyl 1-[(5-Chloro-2-nitrophenyl)sulfonyl]-1H-pyrrole-2-carboxylate Pyrrolyl Phenyl Sulfone deriv.