(-)-Epigallocatechin-3-gallate (EGCG), one of the important catechins in tea, has efficient bioactivity of cell experiment in vitro and animal models in vivo. However, it was not being fully utilized because of the disadvantages of poor liposolubility and stability, as well as low bioavailability, which was resulted from its'polyhydroxy' chemical structure. Excitingly, the molecular modification would be used to improve the physicochemical character of EGCG. This review will summarize the methods on molecular modification of EGCG and investigation of biological activities, which hopes to provide worthful references to the further study of EGCG.%表没食子儿茶素没食子酸酯(EGCG)是茶叶中一类重要儿茶素,在体外细胞实验及动物体内实验中,表现出多种生物活性.但EGCG的"多羟基"的化学结构具有脂溶性差,生物利用率低以及稳定性差等缺点,影响其被深度利用,而分子修饰能显著的改善EGCG多种理化性质.本文综述了最近国内外EGCG结构修饰的常见方法,合成过程以及相应的药理活性研究,以期为后续EGCG的进一步研究提供参考.
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