A Synthesis of 9-Methoxy-1-Methyl-1H,6H-Pyrazolo[4,3-c]Carbazole

Abstract
The synthesis of 9-Methoxy-1-methyl-1H,6H-pyrazolo[4,3-c]carbazole is reported in four steps from 6-nitroindazole. Palladium acetate mediated cyclization gave only the “bent” tetracyclic derivative.