1186401-03-5Relevant articles and documents
Synthesis of 2,3,4,5-Tetrahydrobenzo[1,4]thiazepines via N-Acyliminium Cyclization
Deng, Shixian,Cheng, Zhenzhuang,Ingalls, Charles,Kontes, Ferenc,Yan, Jiaming,Belvedere, Sandro
, p. 1801 - 1805 (2017)
We report an efficient and scalable synthesis of 7-methoxy-2,3,4,5-tetrahydrobenzo[1,4]thiazepine, the core structure of biologically active molecules like JTV-519 and S107. This synthetic route, starting with 4-methoxythiophenol and proceeding via acyliminum cyclization, gives the target product in four steps and 68% overall yield and is a substantial improvement over previously published processes. Nine additional examples of tetrahydrobenzo[1,4]thiazepine synthesis via acyliminium ring closure are also presented.