Lactate dehydrogenase inhibitors and anti-epileptic drugs containing the same

The present invention provides an existing antiepileptic drugs can suppress the intractable epilepsy ineffective lactate dehydrogenase inhibitors, and anti-epileptic agents containing the same. Lactate dehydrogenase inhibitor of the present invention are compounds represented by the formula (III), i.e. it contains a compound having a isosafrole or isosafrole as mother core structures, antiepileptic agents according to the present invention, those compounds the as an active ingredient.