摘要 |
A subject-matter of the invention is the compounds of general formula (I) in which X represents a hydrogen or halogen atom; R<SUB>1 </SUB>represents a hydrogen atom or a (C<SUB>1</SUB>-C<SUB>4</SUB>)alkyl group; R<SUB>2 </SUB>and R<SUB>3 </SUB>each represent, independently of one another, a hydrogen atom or a (C<SUB>1</SUB>-C<SUB>4</SUB>)alkyl group or else R<SUB>2 </SUB>and R<SUB>3 </SUB>form, with the nitrogen atom which carries them, a pyrrolidinyl, piperidinyl, morpholinyl or 4-alkylpiperazinyl group; and Het represents a heteroaromatic group of pyridinyl, 1-oxidopyridinyl, quinolinyl, isoquinolinyl, pyrimidinyl, pyrazinyl or pyridazinyl type, it being possible for the heteroaromatic group to carry one or more halogen atoms and/or one or more (C<SUB>1</SUB>-C<SUB>4</SUB>) alkyl or (C<SUB>1</SUB>-C<SUB>4</SUB>) alkoxy groups; in the form of bases, of addition salts with acids, of solvates or of hydrates, the pharmaceutical compositions comprising them, processes for their preparation and synthetic intermediates.
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