Green Synthesis of Spiro Compounds with Potential Anticancer Activity through Knoevenagel/Michael/Cyclization Multicomponent Domino Reactions Organocatalyzed by Ionic Liquid and Microwave-Assisted
作者:Regina Westphal、Eclair Venturini Filho、Laiza Bruzadelle Loureiro、Cláudio Francisco Tormena、Claudia Pessoa、Celina de Jesus Guimarães、Mariana Palmeira Manso、Rodolfo Goetze Fiorot、Vinicius Rangel Campos、Jackson Antônio Lamounier Camargos Resende、Fabrizio Medici、Sandro José Greco
DOI:10.3390/molecules27228051
日期:——
generality of the methodology was evaluated by exploring the scope of the reaction, varying the starting materials (isatin, malononitrile, and barbituric acid). Overall, the twelve spiro compounds were synthesized in good yields (43–98%) and the X-ray structure of compound 1b was obtained. In addition, the in vitro antiproliferative activities of the spirocycles against four types of human cancer cell lines
在这项工作中,开发了微波辅助 Knoevenagel/Michael/环化多组分多米诺方法,使用乙醇作为溶剂,离子液体 1-甲基咪唑氯化物作为催化剂,用于合成螺化合物。理想的反应条件是根据不同溶剂、催化剂、催化剂用量、温度和加热模式的方法研究确定的。最后,通过探索反应范围、改变起始材料(靛红、丙二腈和巴比妥酸)来评估该方法的通用性。总体而言,12 种螺环化合物的合成收率良好 (43–98%),化合物1b的 X 射线结构获得。此外,螺环化合物对四种类型人类癌细胞系的体外抗增殖活性,包括 HCT116(人结肠癌)、PC3(前列腺癌)、HL60(早幼粒细胞白血病)和 SNB19(星形细胞瘤),通过基于 MTT 的方法进行筛选化验。值得注意的是,螺环化合物1c抑制了四种具有最低 IC 50值的测试细胞系:HCT116 为 52.81 µM,PC3 为 74.40 µM,SNB19 为 101 µM,HL60