Hydrothiolation of benzyl mercaptan to arylacetylene: application to the synthesis of (E) and (Z)-isomers of ON 01910·Na (Rigosertib®), a phase III clinical stage anti-cancer agent
作者:Venkat R. Pallela、Muralidhar R. Mallireddigari、Stephen C. Cosenza、Balaiah Akula、D. R. C. Venkata Subbaiah、E. Premkumar Reddy、M. V. Ramana Reddy
DOI:10.1039/c3ob27220f
日期:——
A stereoselective and efficient method for free radical addition of benzyl thiol to aryl acetylene in the presence of Et3B-hexane has been developed for the synthesis of (Z) and (E)-styryl benzyl sulfides where base catalyzed hydrothiolations have failed. The scope of this reaction was successfully extended for the synthesis of (E)-ON 01910·Na, a phase III clinical stage anti-cancer agent and its inactive
一种立体选择性且高效的自由基加成方法苄硫醇在 Et 3 B-己烷存在下将芳基乙炔转化为芳基乙炔已被开发用于合成 ( Z ) 和 ( E )-苯乙烯基苄基硫醚,其中碱催化的氢硫醇化已失败。该反应范围被成功扩展,用于合成III期临床抗癌药物( E )-ON 01910·Na及其无活性几何异构体( Z )-ON 01910·Na。有趣的是,与Z异构体相比,所有合成的E异构体都对癌细胞表现出更好的细胞毒性。