作者:Muthiah Suresh、Anusueya Kumari、Raj Bahadur Singh
DOI:10.1016/j.tet.2019.05.031
日期:2019.6
The first total synthesis of 4,8,14-trihydroxyilludala-2,6,8-triene 1 in racemic form was achieved in six steps from the indanone 5. The key feature of the synthesis is keto ester formation, α-methylation, silane mediated reduction, Friedel–Crafts acylation and demethylation to provide the crucial precursor 11. LAH was found to be a suitable reducing agent that helps to directly transform 11 into target
从茚满酮5的六个步骤中实现了外消旋形式的4,8,14-三羟基伊拉达拉-2,6,8-三烯1的第一个全合成。合成的关键特征是酮酸酯的形成,α-甲基化,硅烷介导的还原,Friedel-Crafts酰化和脱甲基,以提供关键的前体11。发现LAH是合适的还原剂,有助于直接将11转化为目标分子1。