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Communication | Regular issue | Vol 31, No. 8, 1990, pp.1393-1936
Published online, 1st January, 1970
DOI: 10.3987/COM-89-5238
■ Triazinobenzothiazine — A New Heterocyclic System via a Novel Cyclization Reaction

John H. Musser,* Susan C. Lewis, and Reinhold H. W. Bender

*Wyeth-Ayerst Research Inc., CN 8000, Princeton, NJ 08543-8000, U.S.A.

Abstract

The synthesis and X-ray structure of 9-chloro-2,4-dimethyl[1,3,5]triazino[2,1-c]-1,4-benzothiazine-1,3(2H,4H)-dione (2) are reported. A mechanism is proposed for the formation of this novel heterocyclic system.