Synthesis of new chromeno-annulated cis-fused pyrano[3,4-c]pyran derivatives via domino Knoevenagel–hetero-Diels–Alder reactions and their biological evaluation towards antiproliferative activity
作者:A. Venkatesham、R. Srinivasa Rao、K. Nagaiah、J. S. Yadav、G. RoopaJones、S. J. Basha、B. Sridhar、A. Addlagatta
DOI:10.1039/c2md20023f
日期:——
A new series of chromeno-annulated cis-fused pyrano[3,4-c]pyran derivatives have been synthesized by intramolecular [4 + 2] domino Knoevenagel–hetero-Diels–Alder reactions of 1-oxa-1,3-butadienes derived in situ from 1,3-dicarbonyls/active methylenes and 7-O-prenyl derivatives of 8-formyl-2,3-disubstituted chromenones in the presence of 20 mol% ethylenediamine diacetate (EDDA) in acetonitrile under
通过一系列的分子内[4 + 2]多米诺骨牌Knoevenagel–杂Diels–Alder反应合成1-xa-1,3-丁二烯,合成了一系列新的色均氟环式吡喃并[3,4- c ]吡喃衍生物。在20摩尔%存在下由8-甲酰基-2,3-二取代的色农酮的1,3-二羰基/活性亚甲基和7- O-异戊烯基衍生物原位形成乙二胺二乙酸酯 (EDDA)在 乙腈在回流条件下,收率很好。根据光谱数据建立结构,并通过X射线衍射分析进一步证实。使用体外MTT细胞毒性试验评估这些化合物的抗增殖活性。结果清楚地表明,化合物4a,4b,4c,4j,4k,4l,4m和4n对人A549肺癌和非癌MRC-5细胞系表现出显着的抗增殖活性以及对人神经母细胞瘤SK的有效抑制活性。 -N-SH癌细胞系。其中,化合物4a与标准的阿霉素相比,图4b和图4j显示出对人肺癌A549细胞系最有效的抗增殖活性,而图4a和图4b显示出抗神经母细胞瘤SK-N-SH癌细胞系。