Novel 2h-pyridazine-3-one derivatives, pharmaceutical compositions containing the same and a process for the preparation of the active ingredient

The invention refers to novel 2H-pyridazine-3-one derivatives of the formula I, pharmaceutical compositions containing the same and a process for the preparation of the active ingredient. The novel compounds possess neuroleptic effect and can be used, primarily, for the treatment of schizophrenia. I...

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Main Authors EGYED ANDRAS, SZENASI GABOR, RACZNE BAJNOGEL JUDIT, SCHMIDT EVA, BARKOCZY JOZSEF, GACSALYI ISTVAN, KOTAY NAGY PETER, PALLAGI KATALIN, LEVAY GYORGY, SIMIG GYULA, MIKLOSNE KOVACS ANIKO, WELLMANN JANOS
Format Patent
LanguageEnglish
Published 02.09.2004
Edition7
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Summary:The invention refers to novel 2H-pyridazine-3-one derivatives of the formula I, pharmaceutical compositions containing the same and a process for the preparation of the active ingredient. The novel compounds possess neuroleptic effect and can be used, primarily, for the treatment of schizophrenia. In formula I, R stands for a hydrogen atom or a C1-4, alkyl group, X and Y represent, independently, a hydrogen atom, a halogen atom or a group of the formula II, with the proviso that one of X and Y means always a group of the formula II, and then the other one stands for a hydrogen atom or a halogen atom, wherein in formula II n has a value of 1 or 2.
Bibliography:Application Number: US20040484619