FISCH, A.;COISNE, J. M.;FIGEYS, H. P., SYNTHESIS, BRD, 1982, N 3, 211-212
作者:FISCH, A.、COISNE, J. M.、FIGEYS, H. P.
DOI:——
日期:——
Synthetic studies towards bruceantin. Part 1. Establishment of the carbon network
作者:Sultan Darvesh、Andrew S Grant、David I MaGee、Zdenek Valenta
DOI:10.1139/v91-902
日期:1991.4.1
In a syntheticapproach to the biologically active quassinoid bruceantin 1, intermediate 47 was prepared, which contains all required C-atoms, rings A and B, and four of the 10 chiral centers of bruceantin. The possibilities for a convergent strategy were explored, in which a 5-carbon unit would be joined to a 15-carbon unit by three bonds. After the study of various alkylations and Michael additions
在合成生物活性 quassinoid bruceantin 1 的方法中,制备了中间体 47,其中包含所有必需的 C 原子、环 A 和 B 以及 10 个 bruceantin 手性中心中的四个。探索了收敛策略的可能性,其中 5 个碳单元将通过三个键连接到 15 个碳单元。在研究了关键步骤所需的各种烷基化和迈克尔加成之后,发现 3-iodo-1-trimethylsilyl-5-hexenyne44 以化学选择性、非对映选择性和对映选择性加成到甲基酮腈 3 和 13 的二价阴离子中。词:bruceantin,类黄酮,烷基化,迈克尔加成。