3-HETEROARYL-3, 5-DIHYDRO-4- OXO-4H-PYRIDAZINO [4, 5-B]INDOLE-1 -CARBOXAMIDE DERIVATIVES, THEIR PREPARATION AND THERAPEUTIC USE.

摘要

The invention concerns compounds of general formula (I), wherein: X represents a hydrogen or halogen atom; R1 represents a hydrogen atom or a (C1-C4)alkyl group; R2 and R3, represent each, independently of each other, a hydrogen atom or a (C1-C4)alkyl group, or R2 and R3 form, with the atom which bears them, a pyrrolidinyl, piperidinyl, morpholinyl or 4-alkylpiperazinyl group; and Het represents a heteroaromatic group of pyridinyl, 1-oxidopyridinyl, quinolinyl, isoquinolinyl, pyrimidinyl, pyrazinyl, pyridazinyl type, the heteroaromatic group may represent one or several halogen atoms and/or one or several (C1-C4)alkyl, (C1-C4)alkoxyl groups; in the form of bases, addition salts to acids, solvates or hydrates. The invention also concerns pharmaceutical compositions containing same, methods for preparing same and synthesis intermediates.