Methyl 5-nitro-1-phenylsulfonyl-7-azaindole-3-carboxylate

Methyl 5-nitro-1-(phenylsulfonyl)-1H-pyrrolo[2,3-b]pyridine-3-carboxylate

1H-Pyrrolo[2,3-b]pyridine-3-carboxylic acid, 5-nitro-1-(phenylsulfonyl)-, methyl ester