A Novel Approach to the Pyridoacridine Ring System: Synthesis of the Topoisomerase Inhibitor 13-Deazaascididemin
作者:Stephan Raeder、Franz Bracher
DOI:10.1002/ardp.201200019
日期:2012.10
A novel approach to the pyridoacridine ring system of the ascididemin‐type marine alkaloids is presented. This approach allows for the introduction of the ring A of the alkaloids by using a simple aromatic aldehyde building block. The viability of this approach is demonstrated with the synthesis of AK37, a bioactive deaza analogue of the alkaloid ascididemin. Starting from 3‐cyano‐4‐methylquinoline
提出了一种新的方法来研究 ascididemin 型海洋生物碱的吡啶并吖啶环系统。这种方法允许通过使用简单的芳香醛结构单元引入生物碱的 A 环。这种方法的可行性通过 AK37 的合成得到证明,AK37 是生物碱 ascididemin 的生物活性脱氮类似物。从 3-氰基-4-甲基喹啉开始,一系列区域选择性均裂苯甲酰化、溴吡啶环的环化和自由基环化导致五环系统。