摘要 |
A method of treating migraine comprising the administration of a therapeutically effective amount of a compound of formula (I) including pharmaceutically acceptable salts, solvates, racemates, enantiomers, diastereoisomers and mixtures thereof in which: R1 represents H or one of th e following groups (optionally substituted with one or more of halo, cyano, hydroxy or amino): C1-6alkyl, C1-6alkoxy or C1-6alkanoyl; R2 and R3 independently represent H or one of the following groups (optionally substituted with one or more of halo, cyano, hydroxy or amino): C1-6alkyl, C 1- 6alkoxy, C1-6alkanoyl, C1-6alkylthio, C1-6alkylsulphinyl, C1-6alkylsulphonyl or hydroxy; R4 and R5 independently represent H, C1-6alkyl or R4 and R5 combined together with the carbon atom to which they are attached represent C3- 6cycloalkylidene (each alkyl or cycloalkylidene being optionally substituted with one or more of halo, cyano, hydroxy, amino or C1-6alkyl); and R6, R7 an d R8 independently represent H, halo, hydroxy, mercapto, nitro, cyano or one o f the following groups (optionally substituted with one or more of halo, cyano , hydroxy or amino; and any nitrogen atom being optionally substituted with on e or more C1-6alkyl): C1-6alkyl, C1-6alkanoyl, C1-6alkoxy, C2-6alkoxycarbonyl, carboxy, C1-6alkanoyloxy, C1-6alkylthio, C1-6alkylsulphinyl, C1- 6alkylsulphonyl, C1-6alkylsulphonylamino, sulphamoyl, carbamoyl, C2- 6alkylcarbamoyl or C1-6alkanoylamino; to a mammal in need thereof.
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