Stereoselective total synthesis of (±)-7-deoxy-trans-dihydronarciclasine, a potent antineoplastic phenanthridone alkaloid
作者:Gábor Szántó、László Hegedűs、Lenke Mattyasovszky、András Simon、Ákos Simon、István Kádas
DOI:10.1016/j.tetlet.2009.03.162
日期:2009.6
efficient stereoselective total synthesis of (±)-7-deoxy-trans-dihydronarciclasine, a highly potent antineoplastic agent and constituent of the Amaryllidaceae alkaloids, is described. Starting from a known arylcyclohexylamine-type precursor 6, the C-ring with the required stereochemistry is constructed using a chemo- and stereoselective enone reduction (NaBH4/CaCl2 system) and a Mitsunobu reaction. For
描述了一种短而有效的立体选择全合成的(±)-7-脱氧-反式-二氢水杨酸,这是一种高效的抗肿瘤药,是金眼科生物碱的组成部分。从已知的芳基环己胺型前体6开始,使用化学和立体选择性烯酮还原(NaBH 4 / CaCl 2体系)和Mitsunobu反应构建具有所需立体化学的C环。对于B环封闭,应用了Bischler-Napieralski反应的Banwell修饰。