Total synthesis of new indolo[2,3-a]quinolizine alkaloids sempervirine type, potential pharmaceuticals
作者:Teodozja M. Lipińska
DOI:10.1016/j.tet.2006.03.085
日期:2006.6
the AB–DE synthons, has been obtained. The final stages: desulfuration, and formation of the C-ring via the Gribble method have led to the expected zwitterionic alkaloids. Model syntheses of the indolopyridocoline and its methoxy analogue from 2-acetylpyridine have been performed for investigation of the microwave-induced Fischer synthesis of sensitive indoles and for obtaining compounds for comparative
从5-乙酰基-3-甲硫基-1分五个步骤详细阐述了两个系列的新五环杂环[ g ]吲哚并[2,3- a ]喹诺嗪生物碱(改性的sempervirine具有广泛的活性)的全合成。,2,4-三嗪(得自简单的无环材料)。在两个关键步骤中:电子逆需求Diors–Alder反应与环烯胺反应的前体,以及随后的3-乙酰基-1-甲基硫代环烷基的费歇尔吲哚化反应[ c已经获得了AB-DE合成子]吡啶。最后阶段:脱硫和通过Gribble方法形成C环已导致预期的两性离子生物碱。已经进行了吲哚吡咯啉及其从2-乙酰基吡啶的甲氧基类似物的模型合成,以研究敏感的吲哚的微波诱导费歇尔合成,并获得用于光谱数据比较研究的化合物。