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Communication | Regular issue | Vol 23, No. 1, 1985, pp.33-35
Published online, 1st January, 1970
DOI: 10.3987/R-1985-01-0033
Facile Syntheses of Pyrido[2,1-c]-1,4-thiazine Derivatives

Akikazu Kakehi,* Suketaka Ito, Shingo Yonezu, Katsunori Maruta, and Kazuhiro Yuito

*Department of Chemistry and Material Engineering, Faculty of Engineering, Shinshu University, 4-17-1 Wakasato, Nagano 380-8553, Japan

Abstract

Alkaline treatment of 1-[2-(cyano- or acylmethylthio)vinyl]pyridinium bromides gave smoothly new heterocyclic compounds, 1-cyano- or 1-acyl-1,9a-dihydropyrido[2,1-c]-1,4-thiazine derivatives.