Synthèse de dérivés N-5 substitués des 5<i>H</i>-pyrido[4,3-<i>b</i>]benzo[<i>f</i>]indoles, isomères des 6<i>H</i>-pyrido[4,3-<i>b</i>]carbazoles (ellipticines)
作者:Chi Hung Nguyen、Émile Bisagni、Jean-Marc Lhoste
DOI:10.1139/v86-087
日期:1986.3.1
giving the corresponding tertiary alcohols. After dehydration into 1,1-diarylethylenes and subsequent reduction to 1,1 -diarylethanes, the synthesis of 1-chloro-5-alkyl-5H-pyrido[4,3-b]benzo[f]indoles was achieved either by direct cyclization with dichloromethylmethylether plus stannic chloride or by formylation and cyclodehydration with polyphosphoric acid. Finally, the substitution of the chlorine atom
1-烷基-4-氯吡咯并[3,2-c]吡啶的2-锂衍生物与苯乙酮反应,得到相应的叔醇。在脱水成 1,1-二芳基乙烯并随后还原成 1,1-二芳基乙烷后,1-氯-5-烷基-5H-吡啶并[4,3-b]苯并[f]吲哚的合成是通过直接环化实现的用二氯甲基甲醚加四氯化锡或用多磷酸甲酰化和环脱水。最后,用二烷基氨基烷基胺取代氯原子产生1-氨基取代的5-烷基-5H-吡啶并[4,3-b]苯并[f]吲哚,即1-二烷基氨基烷基氨基6-取代玫瑰树碱的异构体。