| abstract |
The present invention relates to compounds of general formula (I) wherein: X represents a hydrogen or halogen atom, R 1 represents a hydrogen atom or a (C 1 -C 4) alkyl group, R 2 and R 3 represent, each independently of one another, a hydrogen atom or (C 1 -C 4) ) alkyl group, or R2 and R3 form, with the nitrogen atom to which they are attached, a pyrrolidinyl group, piperidinyl, morpholinyl or 4-alkylpiperazinyl group, and Het represents a heteroaromatic group of the type pyridinyl, 1-oxidopyridinyl, quinolinyl, pyroquinolinyl pyridazinyl, wherein the heteroatomic group may bear one or more halogen atoms and / or one or more (C1-C4) alkyl, (C1-C4) alkoxy groups; in the form of a base, of an addition salt of an acid, of a solvate or of a hydrate. The invention also relates to pharmaceutical forms containing the same, methods for their preparation and the synthesis of intermediates. |