Urea and 2-imidazolidone derivatives of the muscarinic agents oxotremorine and N-methyl-N-(1-methyl-4-pyrrolidino-2-butynyl)acetamide
作者:Bjoern M. Nilsson、Hugo M. Vargas、Uli Hacksell
DOI:10.1021/jm00095a025
日期:1992.8
Some urea and 2-imidazolidone analogues of the muscarinic agents oxotremorine (1) and N-methyl-N-(1-methyl-4-pyrrolidino-2-butynyl)acetamide [10; BM-5] have been synthesized and assayed for muscarinic and antimuscarinic activity on the isolated guinea pig ileum. The new compounds (15-24) were found to be muscarinic agonists, partial agonists, or antagonists. The compounds were also tested for in vitro
毒蕈碱剂oxotremorine(1)和N-甲基-N-(1-甲基-4-吡咯烷基-2-丁炔基)乙酰胺的一些尿素和2-咪唑啉酮类似物[10; 已合成[BM-5],并测定了对分离的豚鼠回肠的毒蕈碱和抗毒蕈碱活性。发现新化合物(15-24)是毒蕈碱激动剂,部分激动剂或拮抗剂。还使用毒蕈碱拮抗剂[3H] -3-奎宁环烷基苯甲酸酯([3H] QNB)作为配体测试了化合物与大鼠大脑皮质匀浆的体外受体结合。在此分析中发现它们的效力不及1。在豚鼠回肠上,N-3-甲基取代的咪唑烷酮类似物20是所研究的新化合物中最有效的激动剂。20在诱导回肠收缩方面的功效是5倍,对回肠毒蕈碱受体的亲和力是3-甲基取代的2-吡咯烷酮6的4倍。但是,N-3-未取代的尿素和咪唑烷酮衍生物15和19与母体乙酰胺N-甲基-N-(4-吡咯烷基-2-丁炔基)乙酰胺相比,它们的效力要低几倍[9;[UH-5]和1。部分毒蕈碱激动剂10的尿素类似