A compound of general formula (I): ** Formula ** in which: ** Formula ** represents a group selected from: ** Formula ** in which * indicates the point of attachment of said groups with the rest of the molecule； R1 represents a linear C2-C6-alkyl group, a branched C3-C6-alkyl group or a C3-C6-cycloalkyl group which is optionally substituted with one or more substituents selected independently from each other from: a halogen atom, a group -CN, C1-C6- alkyl, C1-C6- haloalkyl, C2-C6- alkenyl, C2-C6- alkynyl, C3-C10- cycloalkyl, 3- to 6-membered heterocycloalkyl which is spirolated； arylo optionally substituted one or more times, independently of each other, with a substituent R； aryl-C1-C6 alkyloxy- optionally substituted one or more times, independently of each other, with a substituent R； heteroaryl- optionally substituted one or more times, independently of each other, with a substituent R； -C (>； = O) NH2, -C (>； = O) N (H) R ', -C (>； = O) N (R') R ", -C (>； = O) OH, -C ( >； = O) OR ', -NH2, -NHR', -N (R ') R ", -N (H) C (>； = O) R', -N (R ') C (>； = O) R ', -OH, C1-C6 alkoxy-, halo C1-C6-, -OC (>； = O) R', -OC (>； = O) NH2, -OC (>； = O) NHR ', -OC (>； = O) N (R ') R ", -SH, C1-C6-S-alkyl-； R2 represents a hydrogen atom； R3 represents a substituent selected from: a halogen atom, a group -CN, C1-C6 alkyl -, C1-C6- haloalkyl, C2-C6- alkenyl, C2-C6- alkynyl, -C (>； = O) R ', -C (>； = O) NH2, -C (>； = O) N (H) R ', -C (>； = O) N (R') R ", -NH2, -NHR ', -N (R') R", -N (H) C (>； = O) R ', -N (R) C (>； = O) R ', -N (H) C (>； = O) NH2, -N (H) C (>； = O) NHR', -N (H) C (>； = O) N (R ') R ", -N (R') C (>； = O) NH2, -N (R ') C (>； = O) NHR', -N (R ') C (>； = O) N (R ') R ", -N (H) C (>； = O) OR', -N (R ') C (>； = O) OR', -NO2, -N (H) S (>； = O) R ', -N (R') S (>； = O) R ', -N (H) S (>； = O) 2R', -N (R ') S (>； = O) 2R', -N>； = S (>； = O) (R ') R ", -OH, C1-C6-alkoxy-, halo-C1-C6-alkoxy, C3-C6-cycloalkoxy, C3-C6-cy
