A compound of general formula (I) in which R 1 represents a hydrogen atom； -CO 5 R3, -C (O) OR3, -C (O) NR3R4, -C = NR3, -CN, -OR3, -OC (O) R3, -S (O) n-R3, - NR3R4, - NR3C (O) R4, -NO2, -N = CR3R4 or a halogen atom； a branched or unbranched, saturated or unsaturated C1-10 aliphatic radical, optionally at least monosubstituted； a substituted or unsubstituted C3-9 cycloalkyl radical； a branched or unbranched cycloalkyl-C1-10 alkyl radical group in which the alkyl group and / or the cycloalkyl group is optionally at least monosubstituted； a C3-9 cycloalkyl or substituted or unsubstituted C1-10 cycloalkylalkyl group in which the cycloalkyl group is fused to another substituted or unsubstituted mono- or polycyclic ring system； a substituted or unsubstituted aryl radical； a branched or unbranched, substituted or unsubstituted C1-10 arylalkyl radical, at least monosubstituted benzhydryl group； a substituted or unsubstituted heteroaryl radical； a branched or unbranched, substituted or unsubstituted C1-10 heteroarylalkyl radical； a substituted or unsubstituted C3-9 heterocyclyl radical； a branched or unbranched, substituted or unsubstituted C3-9 heterocyclylalkyl radical； a substituted or unsubstituted C3-9 heterocyclyl or C1-10 heterocycloalkyl radical in which the heterocyclyl group is fused to another substituted or unsubstituted mono- or polycyclic ring system； R2 represents a hydrogen atom； -COR3, -C (O) OR3, -C (O) NR3R4, -C = NR3, -CN, -OR3, -OC (O) R3, -S (O) n-R3, - NR3R4, -NR3C ( O) R4, -NO2, -N = CR3R4 or a halogen atom； a branched or unbranched, saturated or unsaturated C1-10 aliphatic radical, optionally at least monosubstituted； a substituted or unsubstituted C3-9 cycloalkyl radical； a branched or unbranched cycloalkyl-C1-10 alkyl radical group in which the alkyl group and / or the cycloalkyl group is optionally at least monosubstituted； a C3-9 cycloalkyl or C1-10 substituted or unsubstituted cycloalkylalkyl group in which the cycloalkyl group is fused to anot
