整合生物学期刊网

应用天然产物 ›› 2021, Vol. 11 ›› Issue (3): 325-332.DOI: 10.1007/s13659-021-00299-9

• ORIGINAL ARTICLES • 上一篇    下一篇

Structurally Diverse Sesquiterpenoids with Anti-neuroinflammatory Activity from the Endolichenic Fungus Cryptomarasmius aucubae

Yi-Jie Zhai, Jian-Nan Li, Yu-Qi Gao, Lin-Lin Gao, Da-Cheng Wang, Wen-Bo Han, Jin-Ming Gao   

  1. Shaanxi Key Laboratory of Natural Products and Chemical Biology, College of Chemistry and Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, People's Republic of China
  • 收稿日期:2020-12-26 修回日期:2021-01-27 出版日期:2021-06-24 发布日期:2021-06-04
  • 通讯作者: Wen-Bo Han, Jin-Ming Gao
  • 基金资助:
    This work was financed by the National Natural Science Foundation of China (Grant Nos. 21702169, 22077102).

Structurally Diverse Sesquiterpenoids with Anti-neuroinflammatory Activity from the Endolichenic Fungus Cryptomarasmius aucubae

Yi-Jie Zhai, Jian-Nan Li, Yu-Qi Gao, Lin-Lin Gao, Da-Cheng Wang, Wen-Bo Han, Jin-Ming Gao   

  1. Shaanxi Key Laboratory of Natural Products and Chemical Biology, College of Chemistry and Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, People's Republic of China
  • Received:2020-12-26 Revised:2021-01-27 Online:2021-06-24 Published:2021-06-04
  • Contact: Wen-Bo Han, Jin-Ming Gao
  • Supported by:
    This work was financed by the National Natural Science Foundation of China (Grant Nos. 21702169, 22077102).

摘要: Two new sterpurane sesquiterpenoids named sterpurol D (1) and sterpurol E (2), and one skeletally new sesquiterpene, cryptomaraone (3), bearing a 5,6-fused bicyclic ring system, along with five known ones, sterpurol A (4), sterpurol B (5), paneolilludinic Acid (6), murolane-2α, 9β-diol-3-ene (7) and (-)-10,11-dihydroxyfarnesol (8) were isolated from an endolichenic fungus Cryptomarasmius aucubae. The structures of the new compounds were elucidated by analysis of NMR spectroscopic spectra and HRESIMS data. The absolute configurations of 1 and 2 were established by spectroscopic data analysis and comparison of specific optical rotation, as well as the biosynthetic consideration. Additionally, compounds 1, 2, 4-6, and 8 showed significant nitric oxide (NO) production inhibition in Lipopolysaccharide (LPS)-induced BV-2 microglial cells with the IC 50 values ranging from 9.06 to 14.81 μM.

关键词: Endolichenic fungus, Cryptomarasmius aucubae, Sesquiterpenes, Anti-neuroinflammatory activity

Abstract: Two new sterpurane sesquiterpenoids named sterpurol D (1) and sterpurol E (2), and one skeletally new sesquiterpene, cryptomaraone (3), bearing a 5,6-fused bicyclic ring system, along with five known ones, sterpurol A (4), sterpurol B (5), paneolilludinic Acid (6), murolane-2α, 9β-diol-3-ene (7) and (-)-10,11-dihydroxyfarnesol (8) were isolated from an endolichenic fungus Cryptomarasmius aucubae. The structures of the new compounds were elucidated by analysis of NMR spectroscopic spectra and HRESIMS data. The absolute configurations of 1 and 2 were established by spectroscopic data analysis and comparison of specific optical rotation, as well as the biosynthetic consideration. Additionally, compounds 1, 2, 4-6, and 8 showed significant nitric oxide (NO) production inhibition in Lipopolysaccharide (LPS)-induced BV-2 microglial cells with the IC 50 values ranging from 9.06 to 14.81 μM.

Key words: Endolichenic fungus, Cryptomarasmius aucubae, Sesquiterpenes, Anti-neuroinflammatory activity