4,5-Dihydropyridazin-3-one derivatives as histamine H3 receptor inverse agonists
摘要:
H3R structure-activity relationships for a new class of 4,5-dihydropyridazin-3-one H3R antagonists/inverse agonists are disclosed. Modification of the 4,5-dihydropyridazinone moiety to block in vivo metabolism identified 4,4-dimethyl-6-{4-[3-((R)-2-methyl-pyrrolidin-1-yl)-propoxy]-phenyl}-4,5-dihydro-2H-pyridazin-3-one 22 as a lead candidate demonstrating potent in vivo functional H3R antagonism in the rat dipsogenia model and robust wake promoting activity in the rat EEG/EMG model. (C) 2011 Elsevier Ltd. All rights reserved.
4,5-Dihydropyridazin-3-one derivatives as histamine H3 receptor inverse agonists
摘要:
H3R structure-activity relationships for a new class of 4,5-dihydropyridazin-3-one H3R antagonists/inverse agonists are disclosed. Modification of the 4,5-dihydropyridazinone moiety to block in vivo metabolism identified 4,4-dimethyl-6-{4-[3-((R)-2-methyl-pyrrolidin-1-yl)-propoxy]-phenyl}-4,5-dihydro-2H-pyridazin-3-one 22 as a lead candidate demonstrating potent in vivo functional H3R antagonism in the rat dipsogenia model and robust wake promoting activity in the rat EEG/EMG model. (C) 2011 Elsevier Ltd. All rights reserved.
Compounds of the Formulae:
and
are antagonists of leukotrienes of C4, D4 and E4, the slow reacting substance of anaphylaxis. These compounds are useful as anti-asthmatic, anti-allergic, anti-inflammatory, and cytoprotective agents.
这些化合物可用作抗哮喘、抗过敏、抗炎和细胞保护剂。
Leukotriene antagonists, their production, and compositions containing them
申请人:MERCK FROSST CANADA INC.
公开号:EP0104885B1
公开(公告)日:1986-06-04
4,5-Dihydropyridazin-3-one derivatives as histamine H3 receptor inverse agonists
作者:Robert L. Hudkins、Lisa D. Aimone、Reddeppa reddy Dandu、Derek Dunn、John A. Gruner、Zeqi Huang、Kurt A. Josef、Jacquelyn A. Lyons、Joanne R. Mathiasen、Ming Tao、Allison L. Zulli、Rita Raddatz
DOI:10.1016/j.bmcl.2011.11.037
日期:2012.1
H3R structure-activity relationships for a new class of 4,5-dihydropyridazin-3-one H3R antagonists/inverse agonists are disclosed. Modification of the 4,5-dihydropyridazinone moiety to block in vivo metabolism identified 4,4-dimethyl-6-4-[3-((R)-2-methyl-pyrrolidin-1-yl)-propoxy]-phenyl}-4,5-dihydro-2H-pyridazin-3-one 22 as a lead candidate demonstrating potent in vivo functional H3R antagonism in the rat dipsogenia model and robust wake promoting activity in the rat EEG/EMG model. (C) 2011 Elsevier Ltd. All rights reserved.