Novel benzothiazine and benzothiadiazine derivatives, method for preparing same and pharmaceutical compositions containing same

摘要

Compounds of formula (I): wherein: R1 represents aryl or heteroaryl, R2 represents hydrogen, halogen or hydroxy, X represents oxygen or sulphur, Y represents oxygen, sulphur or NR wherein R represents hydrogen or alkyl, A represents CR4R5 or NR4, R3 represents hydrogen, alkyl or cycloalkyl, R4 represents hydrogen or alkyl, or A represents nitrogen and, together with adjacent -CHR3-, forms the ring wherein m represents 1, 2 or 3, R5 represents hydrogen or halogen, their isomers and also their addition salts Medicaments.