Chemistry of Heterocyclic Compounds p. 1189 - 1193 (2005)
Update date:2022-08-04
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7-Acetyl-8-aryl-2-(1-chloro-2-hydroxy-3-propyl)thio-9-cyano-6-methyl-1, 4-dihydropyndines were obtained by treatment of 1,4-dihydropyridine-2(3H)- thiones with epichlorohydrin in the presence of sodium bicarbonate. When treated with NaOMe, these compounds are readily intramolecularly alkylated with formation of 7-acetyl-8-aryl-3-hydroxy-9-cyano-6-methyl-3,4-dihydro-2H,8H- pyrido[2,1-b]-[1,3]thiazines. We have studied amination of 2-(1-chloro-2- hydroxy-3-propyl)thio-1,4-dihydropyridines and acylation of 3-hydroxy-3,4- dihydro-2H,8H-pyrido[2,1-b][1,3]thiazines. 2005 Springer Science+Business Media, Inc.
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