作者:Joseph W. Epstein、Herbert J. Brabander、William J. Fanshawe、Corris M. Hofmann、Thomas C. McKenzie、Sidney R. Safir、Arnold C. Osterberg、D. B. Cosulich、F. M. Lovell
DOI:10.1021/jm00137a002
日期:1981.5
of 19, followed by base hydrolysis of the amide 25. The greatest analgesic potency in mouse writhing and rat paw-pain assays was observed for para-substituted compounds. Bicifadine, 1-(4-methylphenyl)-3-azabicyclo[3.1.0]hexane (2b), was the most potent member of the series and is presently undergoing clinical trials in man. Analgesic activity of 2b is limited to the (+) enantiomer 2v, which has the
通过氢化还原1-芳基环丙烷二芳基酰亚胺,合成了一系列1-芳基-3-氮杂双环[3.1.0]己烷。羟苯基类似物20、22和24是通过EtSNa-DMF醚裂解相应的甲氧基苯基类似物2m,2n和23制备的,仲胺20和22通过N-甲酰基中间体19和21。对甲氧基类似物26是通过19的O-乙基化,然后是酰胺25的碱水解而获得的。对对位取代的化合物,在小鼠扭体和大鼠爪痛试验中观察到了最大的镇痛效果。比西法定是1-(4-甲基苯基)-3-氮杂双环[3.1.0]己烷(2b),是该系列中最有效的成员,目前正在人体中进行临床试验。2b的镇痛活性仅限于(+)对映体2v,其具有1R,通过单晶X射线分析确定5S绝对构型。2b的N-甲基类似物(27d)显示出明显的止痛效果,而N-烯丙基(27a),N-(环丙基甲基)(27b)和N-(正己基)(27c)类似物没有活性。比西法定(2b)显示出与类似的氮杂双环烷烃和3-苯基吡咯烷镇痛药不同的非麻醉性特征。