Synthesis of pyrrolophenanthridone alkaloid kalbretorine from indolecarboxylic acids via hypervalent iodine(III) mediated halodecarboxylation and reduction
作者:Yasuyoshi Miki、Hideaki Umemoto、Masashi Dohshita、Hiromi Hamamoto
DOI:10.1016/j.tetlet.2012.01.132
日期:2012.4
The treatment of 8,9,10-trimethoxy-7H-pyrrolo[3,2,1-de]phenanthridine-4,5-dicarboxylic acid with phenyliodine diacetate and potassium iodide in tetrahydrofuran gave the corresponding 4,5-diiodo derivative, which was converted to kalbretorine via reduction, demethylation, followed by alkylation. (C) 2012 Elsevier Ltd. All rights reserved.