Phenethyl-R-2-methylpyrrolidine containing biphenylsulfonamide compounds were shown to be potent and selective antagonists of the H3 receptor. Several of these compounds demonstrated in vivo activity in a rat model of (R)-α-methyl histamine (RAMH) induced dipsogenia, and one compound (4e) provided an increase in wakefulness in rats as measured by polysomnographic methods. However, more detailed analysis of the PK/PD
组胺-H 3受体的拮抗作用是探索增加清醒性以治疗诸如过度日间嗜睡(EDS)以及其他睡眠或认知障碍之类的疾病的一种策略。含有苯乙基-R -
2-甲基吡咯烷的
联苯磺酰胺化合物被证明是H 3受体的有效和选择性拮抗剂。这些化合物中的几种在(R)-α-甲基
组胺(R
AMH)诱导的成瘾症的大鼠模型中具有体内活性,一种化合物(4e)通过多导睡眠监测法测量了大鼠的清醒度。但是,对PK / PD关系的更详细分析表明存在共同的活性代谢物,这可能会使该系列化合物无法进一步开发。