Dopamine D<sub>3</sub> and D<sub>4</sub> Receptor Antagonists: Synthesis and Structure−Activity Relationships of (<i>S</i>)-(+)-<i>N</i>-(1-Benzyl-3-pyrrolidinyl)-5-chloro-4- [(cyclopropylcarbonyl)amino]-2-methoxybenzamide (YM-43611) and Related Compounds
作者:Junya Ohmori、Kyoichi Maeno、Kazuyuki Hidaka、Kazuhiro Nakato、Mitsuyuki Matsumoto、Shoko Tada、Hanae Hattori、Shuichi Sakamoto、Shin-ichi Tsukamoto、Shinji Usuda、Toshiyasu Mase
DOI:10.1021/jm9601720
日期:1996.1.1
(R1) on the benzamide nuclei and that cyclopropyl-, cyclobutyl-, and cyclopentylcarbonyl groups likely possess adequate bulkiness with respect to D3 and D4 affinity and selectivity over D2 receptors in this series. The results also suggested that the N-substituent (R2) on the pyrrolidin-3-yl group performs an important role in expressing affinity for D2, D3, and D4 receptors and selectivity among the
在这项研究中,我们合成了一系列(S)-N-(3-吡咯烷基)苯甲酰胺衍生物1、2a-d,5a-1和7及其对映体(R)-1和(R)- 5c-e,并评估了它们对克隆的多巴胺D2,D3和D4受体的结合亲和力以及它们对阿扑吗啡诱导的小鼠爬山行为的抑制活性。结果表明,D2,D3和D4受体对苯甲酰胺核上4-氨基(R1)的取代基具有不同的体积容忍度(D4> D3> D2),并且可能的是环丙基,环丁基和环戊基羰基在这个系列中,相对于D2受体,D3和D4的亲和力和选择性具有足够的体积。结果还表明,吡咯烷-3-基上的N-取代基(R2)在表达对D2,D3,D4受体和各亚型之间的选择性。化合物之一,(S)-(+)-N-(1-苄基-3-吡咯烷基)-5-氯-4-[(环丙基羰基+ ++)氨基] -2-甲氧基苯甲酰胺(5c)(YM-43611 )对D3和D4受体表现出高亲和力(Ki值分别为21和2.1 nM),D4选择性比