Synthesis and biological evaluation of novel 6,7-dihydro-5H-cyclopenta[d]pyrimidine and 5,6,7,8-tetrahydroquinazoline derivatives as sigma-1 (σ1) receptor antagonists for the treatment of pain
作者:Yu Lan、Yiyan Songyang、Lingli Zhang、Yan Peng、Jinchun Song
DOI:10.1016/j.bmcl.2016.02.077
日期:2016.4
The synthesis and biological evaluation of new series of 6,7-dihydro-5H-cyclopenta[d]pyrimidine and 5,6,7,8-tetrahydroquinazoline derivatives as selective sigma-1 receptor (σ1R) antagonists are reported. The receptor affinities of new compounds were evaluated in vitro in σ1 and σ2 receptor binding assays. The structure-active relationship study leads us to the most promising compound: 2-(4-chlorop
的合成和新系列6,7-二氢5的生物学评价ħ环戊二烯并[ d(]嘧啶和5,6,7,8-四氢喹唑啉衍生物作为选择性σ-1受体σ 1个R)报道拮抗剂。新化合物的受体亲和力在体外进行了评价σ 1和σ 2受体结合试验。通过结构-活性关系研究,我们得出了最有希望的化合物:2-(4-氯苯基)-4-(3-(4-甲基哌啶-1-基)丙氧基)-5,6,7,8-四氢喹唑啉(33)。化合物33具有用于施加纳摩尔亲和力σ 1个R(ķ我σ1 = 15.6 1nM)和高σ 1 / σ 2选择性(ķ我σ 2 > 2000纳米),和鉴定为σ 1 - [R拮抗剂。在动物模型中,化合物33在福尔马林试验中表现出剂量依赖性的抗伤害感受作用。这些结果表明,化合物33可能是用于疼痛治疗的有效止痛药。