Patent ID: 8268823

Claim:
Method for the treatment of epilepsy, multiple sclerosis, glaucoma and uevitis, cerebral traumas and cerebral ischaemias, stroke, head injury, spinal cord injury, surgical trauma, motorneurone disease, Alzheimer's disease, Parkinson's disease, chronic inflammatory pain, neuropathic pain, migraine, bipolar disorder, anxiety, schizophrenia or trigeminal autonomic cephalalgias in a patient suffering from one of said disorders, comprising administering to said patient an effective amount of a compound of formula (I): or a salt or solvate thereof, in which R 1 is C 2-10 alkenyl, C 1-3 alkylaryl, C 1-3 alkyl-heterocyclyl, hydroxyalkyl, carboxamido or C 3-10 cycloalkyl, any of which is optionally substituted by one or more of: halogen, halo C 1-6 alkyl, C 1-6 alkyl, hydroxyalkyl, carboxamido or C 1-6 alkoxy; R 2 to R 6 are independently selected from hydrogen, halogen, C 1-6 alkyl, alkenyl, alkynyl or alkoxy, amino, mono- or di-substituted amino, alkenyloxy, acyl, acyloxy, cyano, nitro, aryl and alkylthio groups.