Concise Synthesis of the Oxo Derivatives of Benzo(c)phenanthridine Bases by N-Deformylated Cyclization Based on Vilsmeier-Haack Reaction.
作者:Tutomu ISHIKAWA、Atsuya TAKAMI、Masatoshi ABE、Ih-Sheng CHEN、Takashi HARAYAMA、Hisashi ISHII
DOI:10.1248/cpb.43.766
日期:——
Chelerythrine-type oxobenzo[c]phenanthridine bases were effectively synthesized by the action of 1, 3-dimethoxy-benzene on 2-(2-methoxycarbonylphenyl)-1-(N-methylformamido)naphthalenes in the presence of phosphorus oxychloride. The N-deformylation based on the Vilsmeier-Haack reaction is also discussed.
在三氯氧磷存在下,1, 3-二甲氧基苯与2-(2-甲氧基羰基苯基)-1-(N-甲基甲酰氨基)萘反应,有效合成了白屈菜红碱型氧代苯并[c]菲啶碱。还讨论了基于 Vilsmeier-Haack 反应的 N-脱甲酰化。