Synthesis and structure–activity relationship of 5-pyridazin-3-one phenoxypiperidines as potent, selective histamine H3 receptor inverse agonists
作者:Ming Tao、Lisa D. Aimone、John A. Gruner、Joanne R. Mathiasen、Zeqi Huang、Jacquelyn Lyons、Rita Raddatz、Robert L. Hudkins
DOI:10.1016/j.bmcl.2011.11.118
日期:2012.1
Optimization of the R2 and R6 positions of (5-4-[3-(R)-2-methylpyrrolin-1-yl-propoxy]phenyl}-2H-pyridazin-3-one) 2a with constrained phenoxypiperidines led to the identification of 5-[4-(cyclobutyl-piperidin-4-yloxy)-phenyl]-6-methyl-2H-pyridazin-3-one 8b as a potent, selective histamine H3 receptor antagonist with favorable pharmacokinetic properties. Compound 8b had an excellent safety genotoxocity
约束苯氧基哌啶对(5- 4- [3-(R)-2-甲基吡咯啉-1-基-丙氧基]苯基} -2 H-哒嗪-3-酮)2a的R 2和R 6位置的优化鉴定5- [4-(环丁基-哌啶-4-基氧基)-苯基] -6-甲基-2 H-哒嗪-3-酮8b是一种有效的,选择性的组胺H 3受体拮抗剂,具有良好的药代动力学特性。在Ames和微核试验中,化合物8b对CNS活性化合物具有出色的安全遗传毒性,也显示出强效的H 3在大鼠成瘾模型中大脑中的R拮抗剂活性和在大鼠EEG / EMG模型中强大的唤醒活性。