NATURAL PRODUCT RESEARCH AND DEVELOPMENT ›› 2022, Vol. 34 ›› Issue (11): 1865-1870. doi: 10.16333/j.1001-6880.2022.11.007

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Study on active fraction screening and chemical constituents of Yao Medicine Callicarpa longissima fruits

ZOU Zhi-qi1,2,YU Ling-ling2,PAN Zheng-hong1,2 *,NING De-sheng2,FU Yu-xia2,LI Lian-chun2   

  1. 1College of Pharmacy,Guangxi University of Chinese Medicine,Nanning 530200,China;2Guangxi Key Laboratory of Plant Functional Phytochemicals and Sustainable Utilization, Guangxi Institute of Botany, Guangxi Zhuang Autonomous Region and Chinese Academy of Sciences,Guilin 541006, China
  • Online:2022-11-25 Published:2022-11-25

Abstract:

To screen the anti-inflammatory and anti-oxidative active fractions from fruits of Callicarpa longissima and study its chemical constituents.The activities of different fractions and compounds from fruits of C. longissima were evaluated by the inhibition of NO production and the multiple antioxidant methods including FRAP,ABTS and DPPH radical scavenging.The compounds were isolated and purified from the active fractions by using various chromatography techniques including silica gel,Sephadex LH-20,MCI,HPLC and recrystallization,and their structures were identified by spectroscopic methods.The results showed that the anti-inflammatory and anti-oxidative activities of the ethyl acetate fraction were stronger than others.Nine compounds,obtained from active fractions,were identified as two flavonoids:chrysosplenetin (1) and pachypodol (2);and seven diterpene phenols:carnosol (3),rosmanol (4),7-methoxyrosmanol (5),7-ethoxyrosmanol (6),carnosic acid-11-methylether (7),rosmadial (8),20-deoxocarnosol (9),respectively.Compounds 3,4,6 were the main compounds,and 1,2,5-9 were isolated from this plant for the first time.Compounds 1-9 have anti-inflammatory effects,among which compounds 34 showed significant anti-inflammatory activity.

Key words: Callicarpa longissima, anti-inflammatory, anti-oxidative, chemical constituents, diterpene phenols

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