Abstract: Compounds of formula (I): wherein: R1 represents a hydrogen atom or an alkyl group; R2 represents an alkyl group; R3 represents an aryl or heteroaryl group. Medicinal products containing the same which are useful in the treatment or prevention of psychiatric and neurological disorders characterized by cognitive deficits.

Abstract: The invention relates the use of 4-chloro-5-{2-[4-(6-fluoro-1,2-benz[d]isoxazole-3-yl)piperidin-1-yl]ethyl-amino}-2-methyl-3-(2H)pyridazinone of the Formula (I) or pharmaceutically acceptable salts thereof for the preparation of medicaments suitable for the improvement of cognitive function or obtaining neuroprotective effect. The medicaments containing 4-chloro-5-{2-[4-(6-fluoro-1,2-benz[d]isoxazol-3-yl)piperidin-1-yl]ethyl-amino}-2-methyl-3-(2H)pyridazinone of the Formula (I) or therapeutically acceptable salt thereof can be used for the treatment or prevention of neuronal death, mental decline, sclerosis multiplex, Creuzfeld-Jacobs disease, Huntington-syndrome, amyotrophic lateral sclerosis, Parkinson-disease, memory disturbance, loss of memory, amnesia, stroke or for the improvement of memory function or learning ability.

Abstract: Novel 2,3,4-benzothiadiazepines-2,2-dioxides and processes for the preparation thereof are disclosed. The compounds influence the central nervous system and may be used to treat or prevent Alzheimer's disease, Parkinson's disease or Huntington's disease, senile dementia not of the Alzheimer's type, vascular dementia, post-stroke dementia, Korsakoff's syndrome, Down's syndrome, schizophrenia, panic disorder, post-traumatic stress disorder, anxiety or depression.

Abstract: Compounds of formula (I): wherein: R1 represents a hydrogen atom or an alkyl group; R2 represents an alkyl group; R3 represents an aryl or heteroaryl group. Medicinal products containing the same which are useful in the treatment or prevention of psychiatric and neurological disorders characterised by cognitive deficits.

Abstract: The present invention relates to the enantiomers of 5,7-dichloro-3-{4-[4-(4-chlorophenyl)-piperazin-1-yl]butyl}-3-ethyl-1,3-dihydro-2H-indol-2-one of the Formula (II) pharmaceutically acceptable salts thereof, process for the preparation thereof, medicinal products containing said enantiomers and the use thereof and their pharmaceutically acceptable salts in the treatment of the disorders of the central nervous system.

Abstract: The present invention is concerned with new indol-2-one derivatives of Formula (I), which have favorable activity profile for the prophylaxis and treatment of disorders in the central nervous or in the cadiovascular system.

Abstract: The present invention is concerned with new 3,3-disubstituted indol-2-one derivatives of the general Formula (I), wherein R1 stands for hydrogen, halogen, alkyl having 1-7 carbon atom(s) or sulfonamido; R2 represents hydrogen or halogen; R3 denotes hydrogen, alkyl having 1-7 carbon atom(s) optionally carrying an aryl substituent or aryl optionally carrying one or two halogen substituent(s); R4 stands for alkyl having 1-7 carbon atom(s); R5 represents a group of the general Formula (II a) or (II b), wherein Q and W each represents nitrogen or CH; R6, R7 and R8 each stands for hydrogen, halogen, trifluoromethyl, alkyl or alkoxy having 1-7 carbon atom(s), or R6 and R7 together represent ethylenedioxy; m is 0, 1, or 2; a is a single, double or triple bond; n is 0, 1 or 2; and pharmaceutically acceptable acid addition salts thereof which are useful in the treatment or prophylaxis of diseases of the central nervous system, the gastrointestinal system and the cardiovascular system.

Abstract: The present invention is related to new 3,4-dihydroberizo[1,2,3]thiadiazine-1,1-dioxide derivatives of the Formula (I), medicaments containing said new compounds, process for the preparation thereof and the use of said derivatives in the medicine. The compounds according to the present invention are suitable for the treatment or prevention of disorders of the central nervous system.

Abstract: The present invention relates to new benzo[1,2,3]thiadiazine-1,1-dioxide derivatives of the general Formula (I), medicaments containing such compounds and the use thereof in the medicine. Benzo[1,2,3]thiadiazine-1,1-dioxide derivatives of the general Formula (I) are suitable for the prevention or treatment of the diseases of the central nervous system.

Abstract: The invention relates the use of 4-chloro-5-{2-[4-(6-fluoro-1,2-benz[d]isoxazole-3-yl)piperidin-1-yl]ethyl-amino}-2-methyl-3-(2H) pyridazinone of the Formula (I) or pharmaceutically acceptable salts thereof for the preparation of medicaments suitable for the improvement of cognitive function or obtaining neuroprotective effect. The medicaments containing 4-chloro-5-{2-[4-(6-fluoro-1,2-benz[d]isoxazol-3-yl)piperidin-1-yl]ethyl-amino}-2-methyl-3-(2H) pyridazinone of the Formula (I) or therapeutically acceptable salt thereof can be used for the treatment or prevention of neuronal death, mental decline, sclerosis multiplex, Creuzfeld-Jacobs disease, Huntington-syndrome, amyotrophic lateral sclerosis, Parkinson-disease, memory disturbance, loss of memory, amnesia, stroke or for the improvement of memory function or learning ability.

Abstract: New 3,3-disubstituted indol-2-one derivatives of the general formula (I) Compounds according to the invention are useful for the prophylaxis or treatment of the disorders of the central nervous system.

Abstract: The invention refers to novel 2,3-benzodiazepine derivatives of formula (I) and pharmaceutical compositions containing the same as the active ingredient. The novel compounds antipasmodic, muscle relaxant and neuroprotective activities. In formula I; X represents a hydrogen atom, a chloro atom or a methoxy group; Y stands for a hydrogen atom or a halo atom; Z means a methyl group or a chloro atom; R is a C1-4 alkyl group or a group of the formula —NR1R2, wherein R1 and R2 represent, independently, a hydrogen atom, a C1-4 alkyl group, a C1-4 alkoxy group or a C3-6 cycloalkyl group.

Abstract: The invention relates to new piperidinyl-alkylamino-pyridazinone derivatives of the general Formula (I) (wherein R is hydrogen or C1-4-alkyl; one of X and Y stands for hydrogen and the other represents a group of the general Formula (II) Hal stands for halogen; and n is 1 or 2) and pharmaceutically acceptable acid addition salts thereof a process for the preparation thereof and pharmaceutical compositions comprising said compounds.

Abstract: 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.

Abstract: The invention relates to new 2,3-benzodiazepine derivatives of general Formula (I), (wherein R1 stands for methyl, formyl, carboxy, cyano, —CH?NOH, —CH?NNHCONH2 or —NR5R6, wherein R5 and R6 independently from each other represent hydrogen or lower alkyl or together with the nitrogen atom, they are attached to, form a 5- or 6-membered, saturated or unsaturated heterocyclic ring optionally containing one or more further nitrogen, sulfur and/or oxygen atom(s); R2 is nitro or amino; R3 stands for hydrogen, lower alkanoyl or CO—NR7R8, wherein R7 and R8 independently from each other stand for hydrogen, lower alkoxy, lower alkyl or lower cycloalkyl or together with the nitrogen atom, they are attached to, form a 5- or 6-membered, saturated or unsaturated heterocyclic ring optionally containing one or more further nitrogen, sulfur and/or oxygen atom(s); R4 is hydrogen or lower alkyl; the dotted lines have the following meaning: if R3 and R4 are not present, the bond between positions C8 and C9 is a single bond and th

Abstract: The invention relates to substituted alkylaminopyridazinone derivatives of the general Formula (I), (wherein R1 is hydrogen or alkyl having 1-4 carbon atoms; one of X and Y stands for hydrogen or halogen and the other represents a group of the general Formula (II), R2 is hydrogen or alkyl having 1-4 carbon atoms; n is 1, 2 or 3; R3 stands for hydrogen, alkyl having 1-4 carbon atoms or aryl-(C1-4 alkyl); Z stands for oxygen; or R3 and Z together with the groups placed between them form a piperazine ring; and R4 stands for hydrogen, halogen, trifluoromethyl or alkoxy having 1-4 carbon atoms) and pharmaceutically acceptable acid addition salts thereof. The invention compounds are useful in the treatment of anxiolytic conditions and cognitive disorders.