Chemical Research in Chinese Universities ›› 2018, Vol. 34 ›› Issue (4): 564-570.doi: 10.1007/s40242-018-8013-5

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Synthesis and Activity Evaluation of Novel Prenylated Flavonoids as Antiproliferative Agents

Kingsadingthongkham VONGDETH1,2, RAN Liqiong1, YAN Lili1, WANG Qiuan1   

  1. 1. College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China;
    2. Department of Chemistry, Faculty of Natural Sciences, National University of Laos, Vientiane P. O. BOX 7322 Lao P. D. R
  • Received:2018-01-12 Online:2018-08-01 Published:2018-05-07
  • Contact: WANG Qiuan E-mail:wangqa@hnu.edu.cn
  • Supported by:
    Supported by the National Natural Science Foundation of China(Nos.J1210040, 21173074).

Abstract: Twenty prenylated flavonoids 1-20 were synthesized by glycoside hydrolysis, dehydrogenation, selective O-methylation, O-prenylation and Claisen rearrangement reaction, from abundant and inexpensive natural flavonoids naringin, hespiredin, quercetin and myricetin. Among them, 1-7, 10-15 and 17-20 are novel compounds, the natural product 3,3',4',7-tetramethoxy-8-prenyl-5-hydroxy flavonoid(16) was synthesized in a high yield. Their antiprolirative activities were evaluated in vitro on a panel of three human cancer cell lines(HeLa, HCC1954 and SK-OV-3). The results show that most of the target compounds displayed moderate to potent antiprolirative activities against the three cancer cells with half maximal inhibitory concentration(IC50) values from 0.49 μmol/L to 95.07 μmol/L. Among them, 3',4',7-trimethoxyl-5-hydroxyl-8-prenyl flavonoid(12) exhibited the strongest antiprolirative activity against the three cancer cells mentioned above with IC50 values of 0.91-7.08 μmol/L. 3',7-Dimethoxy-5-O-prenyl flavone(6) and 3',4',7-trimethoxy-5-O-prenyl flavone(10) showed selective antiproliferative activity against HCC1954 cells with IC50 value of 0.49 and 5.32 μmol/L, respectively.

Key words: Prenylated flavonoid, Claisen rearrangement, Antiproliferative activity, Cancer cell