A Concise Sultone Route to Highly Oxygenated 1,10-seco-Eudesmanolides – Enantioselective Total Synthesis of the Antileukemic Sesquiterpene Lactones(–)-Eriolanin and (–)-Eriolangin
作者:Jörn Merten、André Hennig、Pia Schwab、Roland Fröhlich、Sergey V. Tokalov、Herwig O. Gutzeit、Peter Metz
DOI:10.1002/ejoc.200500739
日期:2006.3
Using a sultone as the key intermediate, the first enantioselective total synthesis of the antileukemic 1,10-seco-eudesmanolides (–)-eriolanin (1) and (–)-eriolangin (2) was achieved, which also established the hitherto unknown absolute configuration of these sesquiterpene lactones. Starting from 2-bromo-1-(2-furyl)ethanone, 24 steps were required to generate the common basic structure and two additional
以磺内酯为关键中间体,首次实现了抗白血病 1,10-seco-eudesmanolides (-)-eriolanin (1) 和 (-)-eriolangin (2) 的对映选择性全合成,这也建立了迄今为止未知的绝对这些倍半萜内酯的构型。从 2-bromo-1-(2-furyl)ethanone 开始,需要 24 个步骤来生成共同的基本结构,并且在每种情况下需要两个额外的步骤来完成天然产物。通过流式细胞术研究1和2对人白血病(HL-60)细胞的细胞周期的影响。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006)