Studies on the Narciclasine Alkaloids: Total Synthesis of (+)-Narciclasine and (+)-Pancratistatin
作者:James H. Rigby、Umar S. M. Maharoof、Mary E. Mateo
DOI:10.1021/ja000930i
日期:2000.7.1
Enantioselective total syntheses of the antitumor alkaloids, (+)-narciclasine and (+)-pancratistatin, are reported. These syntheses feature a stereo- and regiocontrolled aryl enamide photocyclization to construct a common, advanced intermediate possessing a trans-fused BC substructure. Differential functional group interchange in the C-ring of this phenanthridone core structure allows for the production
报道了抗肿瘤生物碱 (+)-narciclasine 和 (+)-pancratastatin 的对映选择性全合成。这些合成具有立体和区域控制的芳基烯酰胺光环化,以构建具有转融合 BC 亚结构的通用高级中间体。这种菲啶酮核心结构的 C 环中的差异官能团交换允许以对映异构纯形式生产两种目标天然产物。