Total Synthesis of Oxyfagaronine, Phenolic Benzo[c]phenanthridine and General Synthetic Way of 2,3,7,8- and 2,3,8,9-Tetrasubstituted Benzo[c]phenanthridine Alkaloids
作者:Thanh Nguyen Le、Won-Jea Cho
DOI:10.1248/cpb.54.476
日期:——
Benzo[c]phenanthridine alkaloids such as oxynitidine, oxysanguinarine, oxyavicine and phenolic oxyfagaronine were synthesized from easily available starting benzonitriles 5 and toluamides 6 using a lithiated toluamide-benzonitrile cycloaddition reaction. The coupling reaction provided 3-arylisoquinolinones that were transformed to the benzo[c]phenanthridones. This method is highly efficient and could
使用锂化甲苯酰胺-苄腈环加成反应,由易得的起始苯甲腈5和甲苯酰胺6合成苯并[c]菲啶生物碱,例如氧硝啶,氧山桂碱,氧鸟嘌呤和酚氧法加宁。偶联反应提供了3-芳基异喹啉酮,其被转化为苯并[c]菲蒽酮。该方法是高效的,并且可用于以克为单位制备各种取代的芳族苯并[c]菲啶化合物。