申请人:ALMIRALL PRODESFARMA SA
                            
                            
                                公开号:WO2000018753A1
                            
                            
                                公开(公告)日:2000-04-06
                            
                            2-Phenylpyran-4-one derivatives of formula (I), wherein R1 represents an alkyl or -NR4R5 group, wherein R?4 and R5¿ each independently represents a hydrogen atom or an alkyl group; R2 represents an alkyl, C¿3?-C7 cycloalkyl, pyridyl, thienyl, naphthyl, tetrahydronaphthyl or indanyl group, or a phenyl group which may be unsubstituted or substituted by one or more halogen atoms or alkyl, trifluoromethyl, hydroxy, alkoxy, methylthio, amino, mono- or dialkylamino, hydroxyalkyl or hydroxycarbonyl groups; R?3¿ represents a methyl, hydroxymethyl, alkoxymethyl, C¿3?-C7 cycloalkoxymethyl, benzyloxymethyl, hydroxycarbonyl, nitrile, trifluoromethyl or difluoromethyl group or a CH2-R?6¿ group wherein R6 represents an alkyl group; and X represents a single bond, an oxygen atom, a sulfur atom or a methylene group; or pharmaceutically acceptable salts thereof, processes for their production and synthetic intermediates used in said processes, pharmaceutical compositions containing them and their use in medical treatment.