DERIVATIVES OF PYRIDO-BENZOTHIAZINE, THEIR PHARMACEUTICAL COMPOSITION AND PROCESS OF PREPARATION THEREOF

摘要

Pyridobenzothiazine derivatives with high antimicrobial activity having the following general formula: …… wherein… R is H or CH3; n is 0 or 1 or 2 and Y is Cl or F, …… wherein R<1> is a C1-C6 alkyl… or a C2-C6 alkenyl, or an arylalkyl, arylalkylcarbonyl, alkylcarbonyl, alkyloxycarbonyl, possibly substituted with halogens or hydroxy groups. …The present invention relates also to the processes for obtaining the compounds having the general formula (I). Such processes consist in synthesis routes using as starting products 3-chloro-4-fluoraniline, or 2,3,4-trifluoronitrobenzene.