Abstract: The invention relates to pyrimidone derivative represented by formula (I) or a salt thereof wherein X represents 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, a 1,2-cyclopropylene, an oxygen atom, a sulfur atom, a sulfonyl group, a sulfoxyde group, a carbonyl group, a nitrogen atom being optionally substituted; or a methylene group optionally substituted; R1 represent a 2,3 or 4-pyridyl group optionally substituted by a C3-6cycloalkyl group a C1-4alkyl group, a C1-4alkoxy group, a benzyl group or a halogen atom; when Y represents a bond, a methylene group optionally substituted or a carbonyl group then R2 represent a C1-16alkyl group, a C3-6cycloalkyl group, a C1-4alkylthio group, a C1-4alkoxy group, a C1-2perhalogenated alkyl group, a C1-3halogenated alkyl group, a 5,6,7,8-tetrahydronaphthyl ring, a naphthyl ring, a phenylthio group, a benzyl group, a phenyl ring, a pyridyl ring, an indole ring, a pyrrol

Abstract: Compound corresponding to the general formula (I) 1

Abstract: Compound of general formula (I) in which R1 represents an alkyl or cycloalkylmethyl group, X1 represents a hydrogen or halogen atom or an alkoxy group, or alternatively OR1 and X1 together represent an —OCH2O—, —O(CH2)2—, —O(CH2)3—, —O(CH2)2O— or —(CH2)3O— group, X2 represents a hydrogen atom or an amino group, X3 represents a hydrogen or halogen atom, and R2 represents a hydrogen atom, an optionally substituted alkyl group, an optionally substituted phenylalkyl group or a group —(CH2)nCO—Z in which n represents a number from 1 to 6 and Z represents a 1-piperidyl group. Therapeutic application.

Abstract: Compounds corresponding to the general formula (I) ##STR1## in which R.sub.1 represents a hydrogen atom, a (C.sub.1 -C.sub.6)alkyl group or a phenyl(C.sub.1 -C.sub.4)alkyl group, R.sub.2 represents a hydrogen atom or a (C.sub.1 -C.sub.6)alkyl group and R.sub.3, R.sub.4 and R.sub.5 each represent, independently of one another, a hydrogen or halogen atom or a trifluoromethyl, cyano, hydroxyl, (C.sub.1 -C.sub.6)alkyl or (C.sub.1 -C.sub.6)alkoxy group. Application in therapeutics.