| abstract |
Compound of formula (I) ** Formula ** in which R1; R 2, R 3 and R 4 are independently selected from the group consisting of C 1-4 alkoxy, C 1-4 alkylcarbonyloxy, benzyloxy, phenylcarbonyloxy, naphthylcarbonyloxy, quinolinylcarbonyloxy, isoquinolinylcarbonyloxy, trifluoromethyl, halogen and hydrogen; R5 is selected from the group consisting of halogen, nitrile, C1-4 alkoxy, C1-4 alkylthio, C1-4 alkyl, phenyl, phenoxy, phenylthio and trifluoromethyl; R6 is selected from the group consisting of hydrogen, fluorine and methyl; or a pharmaceutically acceptable salt, enantiomer, diastereomer, geometric isomer or solvate thereof. |