Compounds of general formula (I), ** Formula ** in which A represents an NR3 group； m is selected from 0, 1, 2； n is selected from 0, 1, 2, 3, 4； the dashed line ----- represents a single or double bond； R1 and R2, identical or different, represent a hydrogen atom； an optionally at least monosubstituted, linear or branched, saturated or unsaturated aliphatic radical； an optionally at least monosubstituted cycloalkyl group that is optionally condensed to other at least monosubstituted monocyclic or polycyclic ring systems； an optionally at least monosubstituted aryl group that is optionally condensed to other at least monosubstituted monocyclic or polycyclic ring systems； an optionally at least monosubstituted heterocyclyl group that is optionally fused to other at least monosubstituted monocyclic or polycyclic ring systems； an optionally at least monosubstituted, branched or unbranched, saturated or unsaturated alkyl-cycloalkyl group in which the cycloalkyl group is optionally at least monosubstituted and / or condensed with a monocyclic or polycyclic ring system； an optionally at least branched or unbranched alkyl-aryl alkyl group, saturated in which the aryl group may optionally be at least monosubstituted and / or condensed with a monocyclic or polycyclic ring system； an alkyl-heterocyclyl group optionally at least monosubstituted, branched or unbranched, saturated, wherein the heterocyclyl group may optionally be at least monosubstituted and / or condensed with a monocyclic or polycyclic ring system； a group (C>； = O) -R7； a group (C>； = O) -O-R7； a group (SOt) -R7； an NR7R7a group； a group (C>； = O) -NR7R7a； an O-R7 group； or together with the nitrogen atom forming a bridge, or form a heterocyclyl group containing at least one monocyclic heteroatom, optionally at least monosubstituted which is optionally condensed with a monocyclic or polycyclic ring system at least optionally monosubstituted and / or linked by groups linear alkylene and / or is optionall
