Semisynthesis of (−)-Rutamarin Derivatives and Their Inhibitory Activity on Epstein–Barr Virus Lytic Replication
作者:Yongsheng Lin、Qian Wang、Qiong Gu、Hongao Zhang、Cheng Jiang、Jiayuan Hu、Yan Wang、Yuan Yan、Jun Xu
DOI:10.1021/acs.jnatprod.6b00415
日期:2017.1.27
(+)-Rutamarin inhibits EBV lytic DNA replication with an IC50 of 7.0 mu M. (-)-Chalepin, a (-)-rutamarin derivative, was isolated from the whole plant of Ruta graveolens and used as a precursor of (-)-rutamarin. Altogether, 28 (-)-rutamarin derivatives were synthesized starting from (-)-chalepin. Of these, 16 compounds (2a-e, 3b-e, 3g, 4f, 4k, 4m-p) were found to be more potent against EBV lytic DNA replication than (-)-chalepin. Compounds 4m, 4n, and 4p exhibited IC50 values of 1.5, 0.32, and 0.83 mu M and showed selectivity index values (SI) of 801, 211, and >120, respectively. Thus, compounds 4m, 4n, and 4p are considered promising leads for further laboratory investigation.
(+)-Rutamarin能够抑制EBV裂解DNA复制,其IC50值为7.0微摩尔。(-)-Chalepin,一种(-)-rutamarin衍生物,是从Ruta graveolens全株中分离出来的,并且被用作(-)-rutamarin的前体。总共合成了28种(-)-rutamarin衍生物,起始原料是(-)-chalepin。其中,16个化合物(2a-e、3b-e、3g、4f、4k、4m-p)对EBV裂解DNA复制的抑制效果比(-)-chalepin更优异。化合物4m、4n和4p的IC50值分别为1.5、0.32和0.83微摩尔,选择性指数(SI)分别为801、211和>120。因此,化合物4m、4n和4p被视为有潜力的候选物,值得进一步的实验室研究。