Antikonvulsiv virkende 2,5-dihydro-pyrazolo3,4-dpyrimidin-4- oner og fremgangsmåter for deres fremstilling

摘要

The invention relates to 2,5-dihydropyrazolo[3,4-d]pyrimidin-4-ones and their tautomers which contain in the 5-position an ar(alkyl) radical and in the 2-position a hydrogen or an ar(alkyl) radical, processes for their preparation and their use as medicaments, in particular for the treatment of epilepsy of various forms.