173908-56-0 1H-Pyrrole-2-carboxylic acid, 1-[[5-chloro-2-(formylamino)phenyl]sulfonyl]-, ethyl ester AIDS-043517 AIDS043517 Ethyl 1-[5-chloro-2-formamidophenyl)sulfonyl]-1H-pyrrole-2-carboxylate Pyrrolyl Phenyl Sulfone deriv.