A formal new access to the benzo[c]phenanthridine alkaloids, synthesis of nitidine and o-methyl fagaronine analogues.
作者:Yves L. Janin、Emile Bisagni
DOI:10.1016/s0040-4020(01)80559-7
日期:1993.1
reaction but omitting the acetic anhydride usually present in the reaction mixture. From these amines, through the thermal cyclization of their corresponding ethyl carbamates, a new access to the benzo[c]phenanthridin-6(5H)-ones was found. Preparation of water-soluble Nitidine and O-Methyl Fagaronine analogues bearing an alkylamino side chain on the C-6 position was achieved from these compounds.
以前未报道的2-芳基-1-萘胺是通过使用Semmler-Wolf反应从2-芳基-1-四酮肟中以高收率获得的,但省略了通常存在于反应混合物中的乙酸酐。从这些胺中,通过它们相应的氨基甲酸乙酯的热环化反应,发现了一种新的苯并[c]菲咯啶-6(5H)-酮。由这些化合物可制备在C-6位带有烷基氨基侧链的水溶性亚硝啶和O-甲基法加罗宁类似物。