Unique spirocyclopiperazinium salt. Part 2: synthesis and structure–activity relationship of dispirocyclopiperazinium salts as analgesics
作者:Xin Wang、Feng-Li Gao、Hong-Bin Piao、Tie-Ming Cheng、Run-Tao Li
DOI:10.1016/s0960-894x(03)00213-0
日期:2003.5
Three series of spirocyclopiperazinium derivatives 5a-d, 6a-f and 17a-d were synthesized and evaluated for their in vivo analgesic activities. Compounds 5a, 17a and 17b exhibited excellent analgesic activity. Two important structure-activity relationships were observed from this study: (1) the quaternary ammonium functionality is a critical pharmacophore for analgesic activity; (2) it is important
合成了三个螺环哌嗪鎓衍生物系列5a-d,6a-f和17a-d,并评估了它们的体内止痛活性。化合物5a,17a和17b表现出优异的止痛活性。从这项研究中观察到两个重要的结构-活性关系:(1)季铵官能度是止痛活性的关键药效团;(2)重要的是调节化合物的亲脂性以提高止痛活性。