Aryl pyridazinone derivatives and their use as H3 receptor ligands

摘要

The present invention is directed to novel pyridazinone derivatives that mediate enzymatic activity. In particular, the compounds and/or their pharmaceutically acceptable salts may be effective in the treatment of diseases or disease states related to the activity of the histamine H3 receptor, including, for example, neurodegenerative disorders, sleep/wake disorders, attention deficit hyperactivity disorder and cognition/cognitive disorders.