Synthesis of the melatonin receptor agonist Ramelteon using a tandem C–H activation–alkylation/Heck reaction and subsequent asymmetric Michael addition
作者:XiaoDan Fu、XingQun Guo、XingWei Li、LiDong He、YuShe Yang、YouXi Chen
DOI:10.1016/j.tetasy.2013.05.006
日期:2013.7
An asymmetric synthesis of the melatonin receptor agonist Ramelteon 1 has been achieved, which involved a tandem C H activation-alkylation/Heck reaction and subsequent highly diastereoselective asymmetric Michael addition to generate the corresponding chiral intermediate, which was readily converted into Ramelteon 1 in 19% overall yield in 15 linear steps. (C) 2013 Published by Elsevier Ltd.