163460-54-6 1H-Pyrrole-2-carboxylic acid, 1-[(4-chloro-2-nitrophenyl)sulfonyl]-, ethyl ester AIDS-043327 AIDS043327 Ethyl 1-[(4-Chloro-2-nitrophenyl)sulfonyl]-1H-pyrrole-2-carboxylate Pyrrolyl Phenyl Sulfone deriv.