4- [(1H - imidazol - 4 - YL) methyl] benzamidines and benzylamidines: novel antagonists of the histamine H3 receptor
作者:Robert Aslanian、Joan E. Brown、N.-Y. Shih、Mwangi wa Mutahi、Michael J. Green、Susan She、Maurice Del Prado、Robert West、John Hey
DOI:10.1016/s0960-894x(98)00399-0
日期:1998.8
A series of amidine substituted phenyl-, benzyl-, and phenethylimidazoles based on the known H3 agonist SK&F 91606 (4) has been synthesized and tested as ligands for the histamine H3 receptor. Insertion of a phenyl ring between the imidazole ring and the amidine moiety produces antagonists. The benzyl series was found to be the most potent and was further investigated. Compounds 9c and 18 (entries
基于已知的H3激动剂SK&F 91606(4),已合成了一系列of基取代的苯基,苄基和苯乙基咪唑,并作为组胺H3受体的配体进行了测试。在咪唑环和the部分之间插入苯环会产生拮抗剂。发现苄基系列是最有效的,并作了进一步研究。化合物9c和18(表1的条目5和12)是H3受体的有效配体,其K(i)值分别为16 nM和7.2 nM。在体内,两种化合物均显示出与标准H3拮抗剂硫代过酰胺(2)等效。