An ultrasound assisted green protocol for the synthesis of quinoxaline based bisspirooxindoles: Crystal structure analysis, enone umpolung, DFT calculations, anti-cancer activity, and molecular docking studies
作者:Sravanthi Baddepuri、Bhargava Sai Allaka、Rama Krishna Gamidi、Mohmmad Faizan、Ravinder Pawar、Srinivas Basavoju
DOI:10.1080/00397911.2023.2199360
日期:2023.6.3
Abstract A series of novel quinoxaline based bisspirooxindolo-pyrrolizidines were synthesized through 1,3-dipolar cycloaddition under ultrasonication with shorter reaction time and good yields. The compounds were well characterized by various spectroscopic methods and finally single crystal X-ray diffraction method (4c, 4d). DFT energy calculations confirm the regioselectivity due to enone umpolung
摘要 通过超声处理下的 1,3-偶极环加成反应,以较短的反应时间和良好的收率合成了一系列基于喹喔啉的新型双螺吲哚并吡咯里西啶。这些化合物通过各种光谱方法和最后的单晶 X 射线衍射方法 ( 4c , 4d ) 得到了很好的表征。DFT 能量计算证实了由于烯酮泵效应引起的区域选择性。合成化合物( 4a–s )的体外抗癌活性表明化合物4g和4q表现出良好的抗癌活性,IC 50针对 DU-145 前列腺癌细胞系的值为 14.51 ± 1.1 和 11.36 ± 0.23 µM;与标准抗癌药物多柔比星(1.75 ± 0.06 和 1.35 ± 0.09 µM)相比,对 Hela 宫颈癌细胞系的作用分别为 16.78 ± 0.95 和 14.28 ± 0.64 µM。计算机分子对接研究表明,合成的化合物可能作为进一步开发新型抗癌药物的潜在线索。