A formal synthesis of the telomerase inhibitory marine pyrrolocarbazole alkaloid dictyodendrin B is described. The key features are consecutive palladium-catalyzed cross-coupling reactions and intramolecular reductive coupling reaction to construct the pyrrolo[2,3-c]carbazole framework.
描述了端粒酶抑制性海洋吡咯并咔唑生物碱双氰菊酯B的正式合成。关键特征是连续的钯催化的交叉偶联反应和分子内的还原偶联反应,以构建吡咯并[2,3- c ]咔唑骨架。