NATURAL PRODUCT RESEARCH AND DEVELOPMENT ›› 2025, Vol. 37 ›› Issue (7): 1252-1258. doi: 10.16333/j.1001-6880.2025.7.007 cstr: 32307.14.1001-6880.2025.7.007

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Chemical constituents from Cinnamomi Camphorae Radix and their anti-inflammatory activities

HUANG Ying1,JIN Zi-yue1,MA Guo-xu1,RU Qing1,YU De-fa2,FU Zhi-wen2,LUO Jiao-yang1*,YANG Mei-hua 1*   

  1. 1Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine,Ministry of Education,Institute of Medicinal Plant Development,Chinese Academy of Medical Sciences & Peking Union Medical College,Beijing 100193,China; 2Jiangxi Kangenbei Traditional Chinese Medicine Co.,Ltd.,Shangrao 334400,China
  • Online:2025-07-28 Published:2025-07-28

Abstract:

To investigate the chemical constituents and anti-inflammatory activity of Cinnamomi Camphorae Radix, various chromatographic separation methods were employed to isolate and purify the chemical components. The structures of compounds were identified based on their physicochemical properties, spectroscopic data, and literature reports, and their anti-inflammatory activities were evaluated using lipopolysaccharide (LPS)-induced RAW 264.7 cell inflammation model. Seventeen compounds were identified as 3,7-dimethyl-oct-1-ene-3,6,7-triol (1), 1α,2β,4β-trihydroxy-p-menthane (2), 1-hydroxy-4-(2-hydroxypropan-2-yl)-1-methylcyclohex-3-en-2-one (3), 2-exo-hydroxycineole (4), 2,3,6,7,10-pentaol (5), 9-oxo-nerolidol (6), 3,7,11-trimethyl-1,7(E),10-dodecatriene-3-ol-9-one (7), 1β,6α-dihydroxy-4(14)-eudesmene (8), (1S,2S)-1,2,3-trihydroxy-1-(3,4-methylenedioxyphenyl) propane (9), 3,4-methylenedioxycinnamyl alcohol (10), quercetin (11), naringenin (12), calamusin I (13), pinnatolide (14), 9β-hydroxysesamin (15), 2-(3,4-methylenedioxyphenyl)-1,2-ethanediol (16), and bis(2-ethylhexyl) terephthalate (17). Among these, compounds 2, 3, 5, 8, 9, 10, 13, 14, 16, and 17 were isolated from Cinnamomum camphora (L.) J. Presl for the first time. Compounds 1, 5, and 11 exhibited inhibitory effects on NO release in LPS-induced RAW 264.7 cells and demonstrated no cytotoxicity. Notably, compound 11 exhibited the most potent inhibition, with an IC50 value of 39.5 ± 4.4 μmol/L, which is comparable to that of the positive control indomethacin (34.2 ± 5.7 μmol/L).

Key words: Cinnamomi Camphorae Radix, anti-inflammatory activity, monoterpenes; sesquiterpenes, flavonoids

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