Patent ID: 7790753

Claim:
A compound of formula (I) in which R 1 represents either a hydrogen atom, or a linear or branched (C 1 -C 7 )alkyl group optionally substituted with one or more fluorine atoms, or a (C 3 -C 7 )cycloalkyl group, or a (C 3 -C 7 )cycloalkyl(C 1 -C 3 )alkyl group, or a phenyl(C 1 -C 3 )alkyl group optionally substituted with one or two methoxy groups, or a (C 2 -C 4 )alkenyl group, or a (C 2 -C 4 )alkynyl group; R 2 represents either a linear or branched (C 1 -C 7 )alkyl or (C 3 -C 7 )cycloalkyl group, or a (C 3 -C 7 )cycloalkyl(C 1 -C 3 )alkyl group; X represents either a hydrogen atom or one or more substituents chosen from halogen atoms and trifluoromethyl, linear or branched (C 1 -C 6 )alkyl and (C 1 -C 6 )alkoxy groups; R 3 represents either a hydrogen atom or one or more substituents chosen from halogen atoms and trifluoromethyl, linear or branched (C 1 -C 6 )alkyl, (C 3 -C 7 )cycloalkyl, (C 1 -C 6 )alkoxy, phenyl, cyano, acetyl, benzoyl, (C 1 -C 6 )thioalkyl, (C 1 -C 6 )alkylsulfonyl, carboxyl and (C 1 -C 6 )alkoxycarbonyl groups, or a group of general formula NR 4 R 5 or SO 2 NR 4 R 5 or CONR 4 R 5 in which R 4 and R 5 each independently represent a hydrogen atom or a linear or branched (C 1 -C 6 )alkyl or (C 3 -C 7 )cycloalkyl group, or R 4 and R 5 form, with the nitrogen atom that bears them, a pyrrolidine, piperidine or morpholine ring; in the form of free base or acid-addition salt.