| abstract |
The present invention provides compounds of formula (Ia) and pharmaceutically acceptable salts thereof. The present invention also provides the use of the compound or salt as a Kv3.1 and/or Kv3.2 modulator, and its use in the treatment of diseases or conditions that require a Kv3.1 and/or Kv3.2 modulator, such as depression and affective disorders, hearing disorders, schizophrenia, substance use disorders, sleep disorders, or epilepsy. |