SEARCH Articles Figures Tables 1,4-Thiazine Chemistry of pyrido thiazines Ethyl 9-ethoxycarbonyl-3-methyl-6-oxo2H,6H-pyrido thiazine-4carboxylates Of pyrido thiazines Pyrido thiazines, and their benzologs Pyrido-thiazines, recent developments in the Pyrido-thiazines, recent developments in the chemistry Thiazin