有机化学 ›› 2012, Vol. 32 ›› Issue (02): 413-419 .DOI: 10.6023/cjoc1105143 上一篇    下一篇

研究简报

新型他克林-吲哚杂二联体的微波促进Husigen [3+2]环加成反应合成及生物活性

郭永彪, 刘海波, 许明   

  1. 防化研究院 北京 102205
  • 收稿日期:2011-05-14 修回日期:2011-10-09 发布日期:2012-03-09
  • 通讯作者: 许明 E-mail:uxwangxu@sohu.com; xiaoqiang19851224@126.com

Synthesis and Bioactivity of Novel Tacrine-Indole Hybrids by Microwave-Assisted Huisgen [3+2] Cycloaddition Reaction

Guo Yongbiao, Liu Haibo, Xu Ming   

  1. Research Institute of Chemical Defense, Beijing 102205
  • Received:2011-05-14 Revised:2011-10-09 Published:2012-03-09

以吲哚-3-丙酸和吲哚-3-丁酸为原料, 分别与炔丙胺发生缩合反应得到3-(丙酰丙炔胺)吲哚(4a)和3-(丁酰丙炔胺)吲哚(4b), 然后4a4b 分别与9-(叠氮基乙基氨基)-1,2,3,4-四氢吖啶类衍生物5a5c 在微波辐射下发生Husigen[3+2]环加成反应得到12 个新型乙酰胆碱酯酶抑制剂——他克林-吲哚杂二联体, 其结构经NMR, IR 和HRMS 表征.初步生物活性测试表明, 目标化合物均具有较强的乙酰胆碱酯酶抑制能力, 其中化合物2b2d 抑制鱼鳐乙酰胆碱酯酶的IC50 值分别为1.6 和2.0 nmol·L-1, 是6T6BA (IC50=11.0 nmol·L-1, 鱼鳐)的6.9 和5.5 倍.

关键词: 他克林-吲哚杂二联体, Huisgen [3+2]环加成, 乙酰胆碱酯酶抑制剂, 微波

3-(Propargyl-propionamine)indole (4a) and 3-(propargyl-butyramide)indole (4b) were prepared from indole-3-propionic acid (3a) and indole-3-butyric acid (3b) by condensation with propargylamine, respectively. Twelve novel acetylcholinesterase inhibitors, tacrine-indole hybrids, were synthesized from 4a, 4b and 9-(azido-ethyl-amino)- 1,2,3,4-tetrahydroacridine derivatives (5a5c) by microwave-assisted Huisgen [3+2] cycloaddition reaction. These novel compounds were determined by NMR, IR and HRMS techniques. The preliminary bioassay showed that all of them exhibited better AChE (electrophorus) inhibitory activity. Particularly, the IC50 values of compounds 2b and 2d were 1.6 and 2.0 nmol· L-1 respectively, which were 6.9 and 5.5 times respectively more potent than N-[6-(6-chloro-1,2,3,4-tetrahydroacridin-9- yl-amino)hexyl]-3-(1H-Indol-3-yl)propionamide (6T6BA) (IC50=11.0 nmol·L-1, electrophorus).

Key words: tacrine-indole hybrids, Huisgen [3+2] cycloaddition, acetylcholinesterase inhibitors, microwave