Addition of thiols to o-quinone methide: New 2-hydroxy-3-phenylsulfanylmethyl[1,4]naphthoquinones and their activity against the human malaria parasite Plasmodium falciparum (3D7)
作者:Abhinay Sharma、Isabela O. Santos、Pratibha Gaur、Vitor F. Ferreira、Celia R.S. Garcia、David R. da Rocha
DOI:10.1016/j.ejmech.2012.10.052
日期:2013.1
phenylsulfanylmethyl[1,4]naphthoquinones (7–42) were synthesized by a three-component reaction that involves lawsone, the appropriate aldehyde and thiols with variable substitution patterns. These reactions involve the in situ generation of o-quinone methides (o-QM) via Knoevenagel condensation and 1,4-nucleophilic addition under conventional heating or microwave irradiation. The new naphthoquinones obtained by
通过三组分反应合成了一系列36种新的苯基硫烷基甲基[1,4]萘醌(7 – 42),该反应涉及Lawone,适当的醛和具有可变取代方式的硫醇。这些反应包括在常规加热或微波辐射下通过Knoevenagel缩合和1,4-亲核加成反应原位生成邻醌甲基化物(o- QM)。通过这种方法获得的新萘醌显示出对恶性疟原虫(3D7)具有中等至良好的体外抗疟活性。