The present invention is directed to novel pyridazinone derivatives that mediate enzymatic activity. In particular, the compounds 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.
The present invention is directed to novel pyridazinone derivatives that mediate enzymatic activity. In particular, the compounds 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.
Aryl pyridazinone derivatives and their use as H3 receptor ligands
申请人:Bacon Edward R.
公开号:US08586588B2
公开(公告)日:2013-11-19
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.
The present invention provides compounds of formula (I*):
their use as H3 inhibitors, processes for their preparation, and pharmaceutical compositions thereof.
本发明提供了式 (I*) 的化合物:
它们作为 H3 抑制剂的用途、制备工艺及其药物组合物。
4-Phenoxypiperidine pyridazin-3-one histamine H3 receptor inverse agonists demonstrating potent and robust wake promoting activity
作者:Robert L. Hudkins、Allison L. Zulli、Reddeppa reddy Dandu、Ming Tao、Kurt A. Josef、Lisa D. Aimone、R. Curtis Haltiwanger、Zeqi Huang、Jacquelyn A. Lyons、Joanne R. Mathiasen、Rita Raddatz、John A. Gruner
DOI:10.1016/j.bmcl.2012.01.026
日期:2012.2
Structure-activity relationships for a series of phenoxypiperidine pyridazin-3-one H3R antagonists/inverse agonists are disclosed. The search for compounds with improved hERG and DAT selectivity without the formation of in vivo active metabolites identified 6-[4-(1-cyclobutyl-piperidin-4-yloxy)phenyl]- 4,4-dimethyl-4,5-dihydro-2H-pyridazin-3-one 17b. Compound 17b met discovery flow criteria, demonstrated potent H3R functional antagonism in vivo in the rat dipsogenia model and potent wake activity in the rat EEG/EMG model at doses as low as 0.1 mg/kg ip. (C) 2012 Elsevier Ltd. All rights reserved.