作者:Malcolm W. Moon、Connie G. Chidester、Richard F. Heier、Jeanette K. Morris、R. James Collins、Roland R. Russell、Jonathan W. Francis、G. Patrick Sage、Vimala H. Sethy
DOI:10.1021/jm00112a002
日期:1991.8
alpha-position in the acetylenic chain (8b) were antagonists. Various analogues of these imidazole acetylenes where the pyrrolidinone ring was replaced by an amide, carbamate, or urea residue were prepared. Several compounds which contained 5-methylimidazole as the amine substituent were partial agonists. The activities of the imidazole compounds are compared with those of the related pyrrolidine and dimethylamine
制备了一系列与oxotremorine相关的炔属咪唑(1a),并通过体外结合试验和小鼠体内药理学试验评估了它们为胆碱能药物。1- [4-(1H-咪唑-1-基)-2-丁炔基] -2-吡咯烷酮(1b)是胆碱能激动剂,氧代雷莫林的效力为二分之一。在咪唑环中具有5-或2-甲基取代基的1b的类似物(化合物1c和1g)是胆碱能部分激动剂。1b在吡咯烷酮环的5位(7b)或炔链的α位(8b)具有甲基取代基的类似物是拮抗剂。制备了这些咪唑乙炔的各种类似物,其中吡咯烷酮环被酰胺,氨基甲酸酯或尿素残基取代。含有5-甲基咪唑作为胺取代基的几种化合物是部分激动剂。将咪唑化合物的活性与相关的吡咯烷和二甲胺类似物的活性进行比较。提出了这些化合物在毒蕈碱受体上的激动剂和拮抗剂构象。