| abstract |
The subject of the invention is the products of general formula (I): <IMAGE> syn isomer, in which: R1, R2, R3 and R5 represent a hydrogen atom, a halogen atom or a hydroxy, alkyloxy radical, mercapto, alkylthio, nitro, cyano, amino, alkylamino, dialkylamino, carbonyl, (alkylamino) carbonyl, (dialkylamino) carbonyl, carboxy, alkoxycarbonyl, acyloxy, R4 represents a hydroxy or alkyloxy radical, it being understood that when R3 represents a hydroxy radical, or alkyloxy, R1, R2 and R5 do not together represent a hydrogen atom, A and A 'represent a hydrogen atom, an equivalent of alkali metal, alkaline earth metal, magnesium, ammonium or a base organic amino, or one or each of the groups CO2A or CO2A 'represent CO2 <->. These products have interesting pharmacological properties which justify their use as medicines. |