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Regioselective Synthesis of Ellipticine
Authors:Tse‐Lok Ho  Sheng‐Ying Hsieh
Abstract:
An eight‐step synthesis of the tetracyclic pyridocarbazole alkaloid ellipticine (= 5,11‐dimethyl‐6H‐pyrido[4,3‐b]carbazole; 1a ) in an overall yield of 13% is reported, starting from 4,7‐dimethyl‐1H‐indene. Key steps were iodination, Suzuki coupling, reductive cyclization, DDQ oxidation, and heterocyclization under loss of H2O.
Keywords:Ellipticine  Alkaloids  Pyridocarbazole alkaloid  Suzuki coupling
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