An expedient microwave assisted regio- and stereoselective synthesis of spiroquinoxaline pyrrolizine derivatives and their AChE inhibitory activity
作者:Adinarayana Murthy Akondi、Sowmya Mekala、Mannepalli Lakshmi Kantam、Rajiv Trivedi、L. Raju Chowhan、Amitava Das
DOI:10.1039/c6nj02869a
日期:——
In this study, we report an efficient four-component cascade protocol to afford spiro indeno[1,2-b]quinoxaline-11,3′-pyrrolizines via the condensation of ninhydrin, phenylenediamine, proline, and nitrostyrene derivatives under microwave irradiation and classical conditions. The 1,3-dipolar cycloaddition reaction was found to proceed in a highly regio- and stereoselective manner. This methodology exemplifies
在这项研究中,我们报告了一种有效的四组分级联方案,通过茚三酮,苯二胺,脯氨酸和硝基苯乙烯衍生物在微波辐射和经典条件下的缩合,可得到螺茚并[1,2 - b ]喹喔啉-11,3'-吡咯啉条件。发现1,3-偶极环加成反应以高度区域选择性和立体选择性的方式进行。该方法例证了用于制备螺吡咯烷酮的绿色化学方案。此外,筛选了所有合成的化合物的AChE抑制活性,在21种化合物中,有6种在低微摩尔IC 50范围内表现出显着的活性。