作者:Blanca Madrigal、Pilar Puebla、Rafael Peláez、Esther Caballero、Manuel Medarde
DOI:10.1021/jo0263364
日期:2003.2.1
The methodology for the synthesis of podophyllotoxin and thuriferic acid-type lignans has been applied to derivatives carrying a naphthalene moiety. Starting from the 1,3-dithiane of 2-naphthaldehyde afforded the expected analogues in the 2,1-naphthalene series. The preferred conformations of these compounds are influenced by the bulky naphthalene system. By contrast, 1,8-bridged products were obtained
鬼臼毒素和苏铁酸型木脂素的合成方法已应用于带有萘部分的衍生物。从2-萘的1,3-二噻吩开始,提供了2,1-萘系列的预期类似物。这些化合物的优选构象受庞大的萘体系影响。相反,从1-萘醛的1,3-二噻吩中获得1,8-桥连产物。在该系列中,脱保护和/或脱硫反应后分离出多环萘木脂素类似物。在该方法中产生的环化是由于3,4,5-三甲氧基苯基部分和1,3-二噻吩环的反应C-2之间的接近性。