Dimethyl quaternary salts of cis- and trans-piperidine-3, 4-diol acetonides (9 and 15) were prepared from readily available intermediates, 1-benzoyl and 1-ethoxycarbonyl derivatives of 1, 2, 5, 6-tetrahydropyridine (4a and 4b). The activity of 9 was examined and the presence of the rigid skeleton was shown to markedly decrease the cholinomimetic effect compared with the partially opened skeleton. The relationship between 9 and known potent muscarinic agents is discussed.
顺式和反式-
哌啶-3, 4
-二醇乙酰酮的二甲基季
铵盐(9和15)是由易于获得的中间体1-苯甲酰基和1-乙氧基碳酰基的1, 2, 5, 6-四氢
吡啶衍生物(4a和4b)制备而成。对9的活性进行了研究,并表明刚性骨架的存在显著降低了与部分打开骨架相比的
胆碱仿效效应。讨论了9与已知的强效毒蕈碱剂之间的关系。