有机化学 ›› 2013, Vol. 33 ›› Issue (03): 535-541.DOI: 10.6023/cjoc201210035 上一篇    下一篇

研究论文

新型黄酮半乳糖缀合物的合成与生物活性研究

娄定辉, 汪钢强, 夏立, 陈凌, 汪秋安   

  1. 湖南大学化学化工学院 长沙 410082
  • 收稿日期:2012-10-18 修回日期:2012-12-13 发布日期:2012-12-18
  • 通讯作者: 汪秋安 E-mail:wangQA@hnu.edu.cn
  • 基金资助:

    湖南省研究生科研创新(No. CX2012B160)和湖南省科技计划(No. 2011FJ3214)资助项目.

Synthesis and Biological Activity of Novel Flavonoids Galactoconjugates

Lou Dinghui, Wang Gangqiang, Xia Li, Chen Ling, Wang Qiuan   

  1. College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082
  • Received:2012-10-18 Revised:2012-12-13 Published:2012-12-18
  • Supported by:

    Project supported by the Hunan Provincial Innovation Foundation for Postgraduate (No. CX2012B160) and the Science and Technology Planning Project of Hunan Province (No. 2011FJ3214).

以香叶木素或野漆树苷为原料, 经过O-甲基化、酸性水解、O-苄基化和过氧丙酮(DMDO)氧化等反应步骤, 合成了5,7,3',4'-四甲氧基黄酮醇(1), 5,7,3'-三苄氧基-4'-甲氧基黄酮醇(2), 5,7,4'-三甲氧基黄酮醇(3), 金合欢素(4)和5,7-二羟基- 4'-苄氧基黄酮(5), 运用“点击化学”方法, 将所合成黄酮类的炔基化合物610β-叠氮化乙酰基半乳糖通过铜催化的1,3-偶极环加成反应链接起来, 合成了一系列未见文献报道的新型黄酮半乳糖缀合物1120. MTT蛋白染色法体外抗肿瘤细胞生物活性测试发现, 化合物11, 1320对白血病细胞(HL-60)、肝癌细胞(SMMC-7721)、乳腺癌细胞(MCF-7)、结肠癌细胞(SW480)和肺癌细胞(A-549)具有一定的抑制活性.

Five flavonoids 5,7,3',4'-tetramethoxyflavonol (1), 5,7,3'-tribenzyloxy-4'-methoxy flavonol (2), 5,7,4'-trimethoxy- flavonol (3), acacetin (4) and 5,7-dihydroxy-4'-benzyloxyflavone (5) were synthesized from diosmetin or rhoifolin by O-methylation, dehydrogenation, glycoside hydrolysis, O-benzylation and dimethyldioxirane (DMDO) oxidation. Based on “Click chemistry”, ten novel flavonoids galactoconjugates 1120 were synthesized in good yield using copper-mediated 1,3-dipolar cycloaddition reactions of acetylgalactose azides and alkynyl-substituted flavonoids 610. Their biological activities against five human cancer cell lines were evaluated by the standard MTT method. The results showed that 11, 13 and 20 exhibited moderate cytotoxicity against HL-60, SMMC-7721, MCF-7, SW480 and A-549 cancer cell lines.

Key words: flavonoids, galactoconjugates, Click chemistry, synthesis, biological activity