Abstract: The invention relates to a dihydrospiro-[cycloalkylamine]-pyrimidone derivative represented by formula (I) or a salt thereof: wherein X, Y, R1, R2, R3, R4, o, m, n, p and q are as defined herein. The invention relates also to a medicament comprising the said derivative or a salt thereof as an active ingredient which is used for preventive and/or therapeutic treatment of a neurodegenerative disease caused by abnormal activity of GSK3?, such as Alzheimer disease.

Abstract: The invention relates to a dihydrospiro-[cycloalkyl]-pyrimidone derivative represented by formula (I) or a salt thereof: wherein X, Y, R1, R2, R3, m, n, p and q are as described herein. The invention relates also to a medicament comprising the said derivative or a salt thereof as an active ingredient which is used for preventive and/or therapeutic treatment of a neurodegenerative disease caused by abnormal activity of GSK3?, such as Alzheimer disease.

Abstract: The invention relates to use of a pyrimidone derivative represented by formula (I) or a salt thereof wherein: X, Y, R1, R2, R3, R4, R5, m, n and p are as defined herein. In particular, the invention relates to a medicament comprising the said derivative or a salt thereof as an active ingredient which is used for preventive and/or therapeutic treatment of a neurodegenerative disease caused by abnormal activity of GSK3? or GSK3? and cdk5/p25, such as Alzheimer disease.

Abstract: The invention relates to use of a substituted-pyrimidone derivative represented by formula (I) or a salt thereof: wherein X, Y, R1, R2, R3, R4, R5, n, p and q are as described herein for treating a variety of disease states. More specifically, the invention relates to a medicament comprising the said derivative or a salt thereof as an active ingredient which is used for preventive and/or therapeutic treatment of a disease caused by abnormal activity of GSK3?, such as Pick's disease.

Abstract: Compounds complying with the general formula in which R either represents a halogen atom or a phenyl group substituted by one or more groups chosen from halogen atoms and (C1-C6)alkyl, (C1-C6)alkoxy, nitro, amino, trifluoromethyl, cyano, hydroxy, acetyl or methylenedioxy groups, or represents a pyridinyl group, a thienyl group, an indolyl group, or a pyrimidinyl group optionally substituted by one or more (C1-C6)alkoxy groups, where, of the two carbon-carbon bonds represented by one is single and the other may be single or double. The compounds of this invention are useful as therapeutic agents.

Abstract: The invention relates to substituted-pyrimidone derivatives represented by formula (I) or a salt thereof: wherein X, Y, R1, R2, R3, R4, R5, n, p and q are as defined herein. The invention relates also to a medicament comprising the said derivative or a salt thereof as an active ingredient which is used for preventive and/or therapeutic treatment of a neurodegenerative disease caused by abnormal activity of GSK3?, such as Alzheimer's disease.

Abstract: The invention relates to therapeutic uses of a 2-(diaza-bicyclo-alkyl)-pyrimidone derivative represented by formula (I): Wherein R1, R2, R3, R4 and n are as defined herein. Specifically, the compounds of formula (I) are used for preventive and/or therapeutic treatment of a neurodegenerative disease caused by abnormal activity of GSK3?, such as Alzheimer's disease. The invention relates also to intermediates for the preparation of compound of formula (I).

Abstract: The invention relates to an use of pyrimidone derivative represented by formula (I) or a salt thereof: wherein m, n, p, X, Y, R1, R2, R3, R4 and R5 are as defined herein for treating a variety of disease states. More specifically, the invention relates to a medicament comprising the said derivative or a salt thereof as an active ingredient which is used for preventive and/or therapeutic treatment of a neurodegenerative disease caused by abnormal activity of GSK3? or GSK3? and cdk5/p25, such as Alzheimer's disease.

Abstract: The invention relates to a compound of formula (I): Wherein R1, X, P, Q, R and W are as defined herein. The invention also relates to the use of same in therapeutics.

Abstract: The invention relates to a pyrimidone derivative represented by formula (I) or a salt thereof wherein: (I) X represents two hydrogen atoms, a sulphur atom, an oxygen atom or a C1-2 alkyl group and a hydrogen atom; Y represents a bond, an ethenylene group, an ethynylene group or a methylene group optionally substituted; R1 represents a 2, 3 or 4-pyridine ring or a 2, 4 or 5-pyrimidine ring optionally substituted; R2 represents a heterocyclic bicyclic rings, having 1–4 heteroatoms selected from an oxygen atom, a sulfur atom and a nitrogen atom and having 5–9 carbon atoms, of formula (II) R3 represents a hydrogen atom, a C1-6 alkyl group, a hydroxy group, a C1-4 alkoxy group or a halogen atom; R4 represents a hydrogen atom, a C1-6 alkyl group, a C1-4 alkoxy group or a halogen atom.

Abstract: Compounds complying with the general formula (I) in which R either represents a halogen atom or a phenyl group substituted by one or more groups chosen from halogen atoms and (C1–C6)alkyl, (C1–C6)alkoxy, nitro, amino, trifluoromethyl, cyano, hydroxy, acetyl or methylenedioxy groups, or represents a pyridinyl group, a thienyl group, an indolyl group, or a pyrimidinyl group optionally substituted by one or more (C1–C6)alkoxy groups, where, of the two carbon-carbon bonds represented by , one is single and the other may be single or double. Therapeutic application.

Abstract: Compound corresponding to the general formula (I) in which X represents an oxygen or sulphur atom or an NH group and R1, R2, R3 and R4 each represent a hydrogen or halogen atom or a nitro, amino, trifluoromethyl, trifluoroalkoxy, cyano, hydroxyl, (C1–C6)alkyl, (C1–C6)alkoxy or phenyl group. Application in therapeutics.

Abstract: The invention relates to a substituted-pyrimidone derivative represented by formula (I) or a salt thereof: wherein X, Y, R1, R2, R3, R4, R5, n, p and q are as described herein. The invention relates also to a medicament comprising the said derivative or a salt thereof as an active ingredient which is used for preventive and/or therapeutic treatment of a neurodegenerative disease caused by abnormal activity of GSK3?, such as Alzheimer disease.

Abstract: The invention relates to a pyrimidone derivative represented by formula (I) or a salt thereof wherein X represents two hydrogen atoms, a sulfur atom, an oxygen atom or a C1-2 alkyl group and a hydrogen atom; Y represents a bond, an ethenylene group, an ethynylene group an oxygen atom, a sulfur atom, a sulfonyl group, a sulfoxide group, a carbonyl group, a hydroxyiminomethylene group, a dioxolan group, a nitrogen atom being optionally substituted; or a methylene group optionally substituted; or a methylene group optionally substituted; R1 represents a 2, 3 or 4-pyridine ring optionally substituted; R2 may represent a C1-6 alkyl group optionally; a C3-6 cycloalkyl group, a C1-4 alkythio group, a C1-4 alkoxy group, a C1-2 perhalogenated alkyl group, a C1-3 halogenated alkyl group, a phenylthio group, a benzyl group, a benzene ring, an indan ring, a 5,6,7,8-tetrahydronaphthalene ring, a naphthalene ring, a pyridine ring, a pyrrole ring, a thiophene ring, a furan ring or an imidazole ring; R3 and R4 represent, eac

Abstract: The invention relates to a 2-(diaza-bicyclo-alkyl)-pyrimidone derivative represented by formula (I): wherein: R1 represents a hydrogen atom, a C1-6 alkyl group or a halogen atom; R2 represents a hydrogen atom, a C1-6 alkyl group optionally substituted by 1 to 4 substituents selected from a halogen atom, a hydroxyl group, a C1-4 alkoxy group; a C1-2 perhalogenated alkyl group, a benzyl group, a phenethyl group, a benzyloxycarbonyl group, a C1-4 alkoxy carbonyl group, a benzene ring, a naphthalene ring, a quinoline ring, a phthalazine ring, a 5,6,7,8-tetrahydronaphthalene ring, a pyridine ring, an indole ring, a pyrrole ring, a thiophene ring, a benzenesulfonyl group, a benzoyl group, a pyridazine ring, a furan ring and an imidazole ring; each of the benzyl group, the phenethyl group, the benzyloxycarbonyl group, the benzenesulfonyl group, the benzoyl group and the benzene, naphthalene, quinoline, phthalazine, 5,6,7,8-tetrehydronaphthalene, pyridine, indole, pyrrole and thiophene rings being optionally sub

Abstract: The invention relates to a dihydrospiro-[cycloalkylamine]-pyrimidone derivative represented by formula (I) or a salt thereof: wherein X, Y, R1, R2, R3, R4, o, m, n, p and q are as defined herein. The invention relates also to a medicament comprising the said derivative or a salt thereof as an active ingredient which is used for preventive and/or therapeutic treatment of a neurodegenerative disease caused by abnormal activity of GSK3?, such as Alzheimer disease.

Abstract: Compound corresponding to the general formula (I) in which R2 represents a chlorine atom, a methyl group or a 3-thienyl group. Therapeutic application.

Abstract: The invention relates to a method of treatment of a variety of neurodegenerative diseases such as Alzheimer disease using a imidazo[1,2-a]pyrimidone derivative represented by formula (I) or a salt thereof: Wherein X, R1, R2, and n are as defined herin.

Abstract: The invention relates to an imidazo[1,2-a]pyrimidone derivative represented by formula (1) or a salt thereof, wherein: X represents a bond, an ethenylene group, and ethenylene group, a methylene group optionally substituted by one or two groups selected from a C1-6 alkyl group, a hydroxy group and a C1-4 alkoxy group; a carbonyl group, an oxygen atom, a sulfur atom, a sulfonyl group, a sulfoxide group or a nitrogen atom being optionally substituted by a C1-6 alkyl group; R1 represents a 2,3 or 4-pyridyl group optionally substituted by a C1-4 alkyl group, C1-4 alkoxy group or a halogen atom; R2 represents a C1-6 alkyl group, a C1-2 perhalogenated alkyl group, a C1-3 halogenated alkyl group, a benzyl group, a phenyl ring, a naphthyl ring, 5,6,7,8-tetrahydronaphthyl ring, a pyridyl ring, an indole ring, a pyrrole ring, a thiophene ring, a furan ring or an imidazole ring, the benzyl group and the rings being optionally substituted by 1 to 4 substituents selected from a C1-6 alkyl group, a phenyl ring, a halogen a

Abstract: The invention relates to compounds of the Formula I, to pharmaceutical compositions comprising them, and to the method of use thereof in the treatment or prevention of disorders linked to a dysfunction of the nicotinic receptors.