173908-43-5 1H-Pyrrole-2-carboxylic acid, 1-[(5-amino-2-chlorophenyl)sulfonyl]-, ethyl ester AIDS-043438 AIDS043438 Ethyl 1-[(2-chloro-5-aminophenyl)sulfonyl]-1H-pyrrole-2-carboxylate Pyrrolyl Phenyl Sulfone deriv.