173908-27-5 1H-Indole-2-carboxylic acid, 1-[(5-chloro-2-nitrophenyl)sulfonyl]-, ethyl ester AIDS-043443 AIDS043443 Ethyl 1-[(5-Chloro-2-nitrophenyl)sulfonyl]-1H-indole-2-carboxylate Indolyl Phenyl Sulfone deriv.