PROCESS FOR PRODUCING NEW BENZOTHIAZINE DIOXIDE DERIVATIVES

A compound of the formula:- or a pharmaceutically acceptable acid addition salt thereof, wherein R is 2-pyridyl, 6-methyl-2-pyridyl, 6-fluoro-2-pyridyl, 6-chloro-2-pyridyl, 5-methyl-3-isoxazolyl or 2-thiazolyl; Y is N,N-dialkylamino having up to three carbon atoms in each alkyl moiety, N-methyl-N-benzylamino, N-ethyl-N-benzylamino, N-methyl-N-( beta -phenylethyl)-amino, N-ethyl-N-( beta -phenylethyl)amino, N-methyl-N-cycloalkylamino and N-ethyl-N-cycloalkylamino each having up to six carbon atoms in the cycloalkyl moiety, N-methyl-N- phenylamino, N-ethyl-N-phenylamino, N-methyl-N- (p-chlorophenyl)amino, N-ethyl-N- (p-chlorophenyl) amino, N-methyl-N- (N min ,N min -dimethylcarbamylmethyl) amino, N-methyl-N- (N min ,N min -diethylcarbamylmethyl) -amino, pyrrolidino, piperidino, 2-methylpiperidino, 2-ethylpiperidino, homopiperidino, 1-azacyclooctyl, N-methylpiperazino, morpholino or thiomorpholino; Z is pyridinium, 2-methylpyridinium, 3-methylpyridinium, 4-methylpyridinium, 2,6-dimethylpyridinium, 2,4,6-trimethylpyridinium, 3-ethylpyridinium, 4-ethylpyridinium, 3-ethyl-4-methylpyridinium, 4-ethyl-2-methyl-pyridinium or 5-ethyl-2-methylpyridinium; and A is pharmacologically acceptable anion. The compounds are anti-inflammatory agents.