天然产物研究与开发 ›› 2022, Vol. 34 ›› Issue (6): 1021-1026.doi: 10.16333/j.1001-6880.2022.6.015

• 开发研究 • 上一篇    下一篇

普洱大叶茶中对褪黑素受体具有激动作用的活性化合物

王   豪1,2,王   委2,刘艳芳1,郭志谋2,王超然2*   

  1. 1泰州新药创制服务中心,泰州 225300;2中国科学院大连化学物理研究所,大连 116023
  • 出版日期:2022-06-28 发布日期:2022-06-30
  • 基金资助:
    江苏省高校自然科学基金面上项目(18KJB350011)

Active compounds from Camellia sinensis and their agonistic activity on melatonin receptors

WANG Hao1,2,WANG Wei2,LIU Yan-fang1,GUO Zhi-mou2,WANG Chao-ran2*   

  1. 1 Center for Novel Drug Development of Taizhou,Taizhou 225300,China; 2 Dalian Institute of Chemical Physics,Chinese Academy of Sciences,Dalian 116023,China
  • Online:2022-06-28 Published:2022-06-30

摘要:

对普洱大叶茶中具有褪黑素受体激动作用的活性化合物进行了跟踪分离和活性测试。在活性跟踪指导下,综合运用硅胶柱层析和高效液相色谱等分离技术,从普洱大叶茶新鲜叶片中发现9个活性化合物,分别被鉴定为(+)-7′,7′-dimethyl-5-hydroxy-2R,3S-trans-pubeschin(1)、plumbocatechin A(2)、(-)-儿茶素(3)、儿茶素-3-氧-没食子酸酯(4)、没食子儿茶素没食子酸酯(5)、表没食子酸儿茶素没食子酸酯(6)、(-)-表儿茶素(7)、没食子酸儿茶素(8)和表没食子酸儿茶素(9),其中,化合物12为首次从山茶属中分离得到。MTT法测试表明化合物1~9对褪黑素受体均具有一定的激动作用,化合物3很有可能是茶叶调节MT受体而发挥抗精神疾病活性的主要成分。

关键词: 茶叶, 茶多酚, 褪黑素受体, 激动活性

Abstract:

To study the active constituents with agonistic activity on melatonin receptors,various chromatographic methods and preparative HPLC were used on fresh leaves of Camellia sinensis under an activity-guided isolation,affording nine compounds identified as (+)-7′,7′-dimethyl-5-hydroxy-2R,3S-trans-pubeschin (1),plumbocatechin A (2),(-)-catechin (3),catechin-3-O-gallate (4),gallocatechin-3-O-gallate (5),epigallocatechin-3-O-gallate (6),(-)-epicatechin (7),gallocatechin (8) and epigallocatechin (9).Among them,compounds 1 and 2 were obtained from the genus Camellia for the first time.Their agonistic activities were further evaluated by an MTT assay,and the result revealed the potential that compound 3 may be main active component of C. sinensis via regulation on melatonin receptors.

Key words: Camellia sinensis, tea polyphenol, melatonin receptor, agonistic activity

中图分类号:  R284.1