New thieno:thiazine derivs. substd. on pyridine ring

摘要

Thienothiazine derivs. of formula (I) are new: X = a single bond or a 5-12 membered mono- or poly-cyclic opt. partially hydrogenated aryl or heteroaryl gp., opt. substd. with halogen, lower alkyl or lower alkoxy; Y = a single bond or a heteroatom; R = mono- or poly-cyclic, opt. partially hydrogenated 5-12 membered aryl or heteroaryl gp., opt. mono- or poly-substd. with halogen, lower alkyl or lower alkoxy; A = halogen; B = H or halogen.