NATURAL PRODUCT RESEARCH AND DEVELOPMENT ›› 2020, Vol. 32 ›› Issue (6): 989-994. doi: 10.16333/j.1001-6880.2020.6.011

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Chemical consitituents and anti-TMV activity of the roots and stems of Cynanchum paniculaun in Guizhou Province

TANG Pan1,CHEN Jie1,YAN Ying1,2,HU Jia-qi2,XU Ran1,2,ZHANG Ji-quan1,2,TANG Lei1,2*   

  1. 1College of Pharmacy,Guizhou Medical University,Guiyang 550025,China; 2Engineering Technology Research Center for Chemical Drug R&D,Guizhou Medical University,Guiyang 550004,China

  • Online:2020-06-28 Published:2020-07-06

Abstract:

Thirteen compounds were obtained from the ethanol extract of the roots and stems of Cynanchum paniculatum by applying various chromatographic techniques.Their structures were elucidated and identified as glaucogenin A (1),glaucogenin A 3-O-β-D-cymaropyranoside (2),N-(N-benzoyl-S-phenylalaninyl)-S-phenylalaninol acetate (3),N-(N-benzoyl-S-phenylalaninyl)-S-phenylalaninol benzoate (4),androst-4,6-dien-3,17-dione (5),20-hydroxy-4,6-diene-gestrol-3-one (6),5,7-dihydroxy-6-methoxyflavone (7),5,7-dihydroxy-8-methoxyflavone (8),5-(hydroxymethyl)-1-isopentyl-1H-pyrrole-2-carbaldehyde (9),mono-terpenes (10),4-hydroxy-3,5-dimethoxybenzoic acid (11),pavonisol (12),4-hydroxy-3,5-dimethoxy-benzoic acid (13),respectively,based on the spectral data.Among them,compounds 2-5 and 7-10 were obtained from the fruits of C. paniculatum for the first time.The results showed that compounds 1-4 and 9 have anti-TMV activity,through in vitro disc method and inactivation effect tested.The protection effect test showed that compound 4 has anti-TMV activity.It was found that compound 3,4 and 9 have anti-TMV activity for the first time.

Key words: Cynanchum paniculatum, chemical constituents, separation and purification, anti-TMV activity

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