| abstract |
The invention concerns 3,5-dioxo-(2H,4H)-1,2,4-triazine derivatives of general formula (I), wherein: R1 and R2, identical or different, represent a branched or linear C1-C7 alkyl or alkenyl radical, a C1-C6 alkyl radical substituted by groups such as trifluoromethyl, C5-C6 cycloalkyl, nitrile, C1-C4 alkoxycarbonylvinyl, hydroxycarbonylvinyl, C1-C4 alkoxycarbonyl, carboxylate, benzyloxy or phenyl (for which the phenyl ring is optionally substituted by one or more groups such as C1-C4 alkoyl, C1-C4 alkoxy, nitro, halogen, trifluoromethyl); YR3 represents oxygen or NR3 for which R3 represents hydrogen, a linear or branched C1-C7 alkyl or alkenyl radical, a C1-C6 alkyl radical substituted by groups such as trifluoromethyl or phenyl (for which the phenyl ring is optionally substituted by one or more groups such as C1-C4 alkoyl, C1-C4 alkoxy, nitro, halogen, trifluoromethyl); Z represents an oxygen atom or a carbon atom capable of being bound to the ortho, meta or para positions of the phenyl group of formula I; n can be 0 to 5 when Z=C or 2 to 4 when Z=O; X represents oxygen or sulphur; R4, R5, R6, R7 and R8 represent hydrogen or fluorine; R9, R10 and R11 represent hydrogen or a linear or branched C1-C5 alkyl group as well as the pharmaceutically acceptable base addition salts, and the various enantiomers of compounds having asymmetric carbons, and their mixtures in all proportions including in particular the racemic mixtures. |