Patent ID: 8796284

Claim:
A compound of formula (I): wherein R 1 represents a five-membered heteroaryl ring selected from the group consisting of a pyrazole, a thiazole, and a triazole ring optionally substituted by one or two halogen atoms or by one or two methyl groups; R 2 represents a hydrogen atom; R 3 represents bromine or chlorine atom; R 4 represents independently: a) a five-membered heteroaryl group optionally substituted by one or more halogen atoms or by one or more groups selected from the group consisting of alkyl, cycloalkyl, alkoxy, alkylthio, amino, mono- or dialkylamino b) a group —N(R 5 )(R 6 ) in which R 5 and R 6 represent independently: a hydrogen atom; an alkyl or cycloalkyl group of 3 to 6 carbon atoms, linear or branched, optionally substituted by one or more halogen atoms or by one or more groups selected from the group consisting of cycloalkyl (3-8 carbon atoms), hydroxy, alkoxy, amino, mono- and dialkylamino (1-8 carbon atoms); or R 5 and R 6 form together with the nitrogen atom to that they are attached a saturated heterocyclic group of 4 to 6 members in which further heteroatom may be inserted, which is optionally substituted by one or more halogen atoms or by one or more alkyl groups (1-8 carbon atoms), hydroxy, lower alkoxy, amino, mono- or dialkylamino, or c) a group —OR 7 or —SR 7 , where R 7 represents independently: an alkyl (1-8 carbon atoms) or cycloalkyl (3-8 carbon atoms) group, linear or branched, optionally substituted by one or more halogen atoms or by one or more groups selected from the group consisting of alkyl (1-8 carbon atoms), alkoxy (1-8 carbon atoms), amino, mono- or dialkylamino (1-8 carbon atoms); or a Phenyl ring optionally substituted with one or more halogen atoms.