Patent ID: 8138217

Claim:
A compound of formula (I) wherein R is an optionally substituted aryl or heteroaryl group; R 1 and R 2 represent, the same or different and independently from each other, a hydrogen atom, a straight or branched C 1 -C 3 alkyl or a group —CONH 2 or —CH 2 NR′R″ or, taken together with the carbon atom to which they are bonded, R 1 and R 2 may form a C 3 -C 6 cycloalkyl group; with the proviso that at least one of R 1 and R 2 is other than a hydrogen atom; R′ and R″ represent, the same or different and independently from each other, a hydrogen atom or a straight or branched C 1 -C 3 alkyl group or, taken together with the nitrogen atom to which they are bonded, R′ and R″ may form a heterocyclic ring of formula wherein R′″ is a hydrogen atom or a straight or branched C 1 -C 3 alkyl group; R 3 is a hydrogen or halogen atom or a group selected from hydroxy, cyano, straight or branched C 1 -C 3 alkyl or C 1 -C 3 alkoxy; or stereoisomers, tautomers, and pharmaceutically acceptable salts thereof with the proviso that the compound not have one of R 1 and R 2 be a hydrogen atom, the other one of R 1 and R 2 be a C 1 -C 3 alkyl and R be a 4-(1-methyl-piperazin-4-yl)phenyl.