Methyl 3-bromo-4-chloro-2-methyl-1H-pyrrolo[2,3-b]pyridine-1-carb oxylate

4-Chloro-2-methyl-1-(phenylsulfonyl)-1H-pyrrolo[2,3-b]pyridine

3-溴-4-氯-2-甲基-1H-吡咯并[2,3-B]吡啶