A facile chemo-, regio- and stereoselective synthesis and cholinesterase inhibitory activity of spirooxindole–pyrrolizine–piperidine hybrids
作者:Yalda Kia、Hasnah Osman、Raju Suresh Kumar、Vikneswaran Murugaiyah、Alireza Basiri、Subbu Perumal、Ibrahim Abdul Razak
DOI:10.1016/j.bmcl.2013.03.027
日期:2013.5
A series of novel hybrid spiro heterocycles comprising pyrrolizine, spiroxindole and piperidine moieties was synthesized chemo-, regio- and stereoselectively in good yields from 1,3-dipolar cycloaddition reaction of a series of 1-acryloyl-3,5-bisarylmethylidenepiperidin-4-ones with azomethine ylides generated in situ from 5-choloroisatin and l-proline in methanol. These cycloadducts displayed significant
通过一系列1-丙烯酰基-3,5-双芳基亚甲基哌啶-4-的1,3-偶极环加成反应,以化学,区域和立体选择性高收率合成了一系列新的杂螺环杂环,包括吡咯嗪,螺氧并吲哚和哌啶部分具有在甲醇中由5-胆红素和1-脯氨酸原位产生的甲亚胺基亚胺的化合物。这些环加合物显示出显着的胆碱酯酶抑制活性。在筛选的化合物中,8g和8e表现出对乙酰胆碱酯酶(AChE)和丁酰胆碱酯酶(BChE)的最大抑制活性,IC 50值分别为3.33和3.13μM。