Efficient synthesis of 5-demethyl-6-methylisoellipticine and utilization of the methodology to prepare angular and linear pyridocarbazoles
Abstract
5-Demethyl-6-methylisoellipticine and its analogue 7-methylpyrido[4,3-c]carbazole have been synthesized by thermal cyclization of N-methylcarbazoles having an active acid azide side-chain, followed by reduction.