173908-21-9 1H-Pyrrole-2-carboxylic acid, 1-[(5-methyl-2-nitrophenyl)sulfonyl]-, ethyl ester AIDS-043484 AIDS043484 Ethyl 1-[(5-Methyl-2-nitrophenyl)sulfonyl]-1H-pyrrole-2-carboxylate Pyrrolyl Phenyl Sulfone deriv.