1,1-DIOXO-2H-1, 2-BENZOTHIAZINE-3-CARBOXAMIDE DERIVATIVES, METHOD FOR PREPARING SAME AND PHARMACEUTICAL COMPOSITIONS COMPRISING SAME

摘要

wherein: represents a single or double bond, R1 represents a hydrogen atom or a hydroxy, alkoxy, acyloxy, alkylsulphonyloxy, arylsulphonyloxy or arylalkoxy group, R2 represents a hydrogen atom or an alkyl group, R3 and R4, which may be identical or different, each represent a hydrogen atom, a halogen atom or an alkyl, hydroxy or alkoxy group, Ak represents an alkylene chain, R5, R6 and R7, which may be identical or different, each represent an alkyl group, or R5, R6 and R7, taken together with the nitrogen atom carrying them, form a saturated or unsaturated nitrogen-containing heterocycle, X represents a halogen atom, and its optical isomers when they exist. Medicaments.