Patent ID: 6998399

Claim:
A compound of the formula (I) in which R represents a (C 1 –C 6 )cycloalkyl group or a phenyl group optionally substituted with one or more groups chosen from a halogen atom, a (C 1 –C 6 )alkyl, (C 1 –C 6 )alkoxy, nitro, amino, di(C 1 –C 6 )alkylamino, trifluoromethoxy, trifluoromnethyl, cyano, hydroxyl or methylenedioxy group or a 1-piperidyl, 4-morpholinyl, 1-pyrrolidinyl, 1-azetidinyl, 1-azepinyl, pyridyl, thienyl, pyrazinyl, furyl, benzofmyl, beuzothienyl, indolyl, pyrimidinyl, isoxazolyl, phenoxzinyl, phenoxathienyl, dibeuzofuryl, dibeuzothienyl, pyrrolyl or naphthyl group, each of these groups possibly being substituted with one or more groups chosen from a halogen atom and a (C 1 –C 6 )alkyl, (C 1 –C 6 )alkoxy, trifluoromethoxy, trifluoromethyl, nitro, cyano, hydroxyl, amino, di(C 1 –C 3 )alkylamino or (C 3 –C 8 )cycloalkylamino group, in base form or in the form of an acid-addition salt.