Dihydrobenzoxathiazepine compounds, a process for their preparation and pharmaceutical compositions containing them

A compound selected from those of formula (I):

• wherein R1 represents a hydrogen atom, a cyano group, a linear or branched (C1-C6)alkoxycarbonyl group, a (C1-C6)alkylsulphonylamino-(C1-C6)alkyl group in which the alkyl moieties may each be linear or branched, an N-hydroxycarboximidamide group or a heterocyclic group,
• its enantiomers and diastereoisomers, and addition salts thereof with a pharmaceutically acceptable acid or base,
• wherein the term “heterocyclic group” means a 5-membered monocyclic aromatic group having one to four hetero atoms which may be the same or different and which are selected from nitrogen, oxygen and sulphur, wherein the heterocyclic group may be optionally substituted by one or more substituents selected from linear or branched (C1-C6)alkyl and linear or branched (C1-C6)polyhaloalkyl.