整合生物学期刊网

应用天然产物 ›› 2023, Vol. 13 ›› Issue (2): 8-8.DOI: 10.1007/s13659-023-00372-5

• Original Article • 上一篇    下一篇

Anti-inflammatory maistemonine-class alkaloids of Stemona japonica

Cheng-Yong Tan1,2, Bao-Bao Shi3, Mei-Fen Bao1, Xiang-Hai Cai1   

  1. 1. State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China;
    2. University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China;
    3. School of Pharmaceutical Sciences, South-Central MinZu University, Wuhan, 430074, People's Republic of China
  • 收稿日期:2023-02-16 出版日期:2023-04-24 发布日期:2023-05-18
  • 通讯作者: Xiang-Hai Cai,E-mail:xhcai@mail.kib.ac.cn
  • 基金资助:
    This project was supported in part by the Xingdian Talent Support Plan and the Bualuang ASEAN Chair Professor Research Grant, Thailand.

Anti-inflammatory maistemonine-class alkaloids of Stemona japonica

Cheng-Yong Tan1,2, Bao-Bao Shi3, Mei-Fen Bao1, Xiang-Hai Cai1   

  1. 1. State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China;
    2. University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China;
    3. School of Pharmaceutical Sciences, South-Central MinZu University, Wuhan, 430074, People's Republic of China
  • Received:2023-02-16 Online:2023-04-24 Published:2023-05-18
  • Contact: Xiang-Hai Cai,E-mail:xhcai@mail.kib.ac.cn
  • Supported by:
    This project was supported in part by the Xingdian Talent Support Plan and the Bualuang ASEAN Chair Professor Research Grant, Thailand.

摘要: Three hitherto undescribed Stemona alkaloids, named stemajapines A-C (1-3), along with six known alkaloids (4-9), were isolated and identified from the roots of Stemona japonica (Blume) Miq. (Stemonaceae). Their structures were established by the analysis of the mass data, NMR spectra, and computational chemistry. Stemjapines A and B were degraded maistemonines without spiro-lactone ring and skeletal methyl from maistemonine. Concurrence of alkaloids 1 and 2 revealed an undescribed way to form diverse Stemona alkaloids. Bioassay results disclosed the anti-inflammatory natural constituents stemjapines A and C with IC50 values of 19.7 and 13.8 μM, respectively, compared to positive control dexamethasone with 11.7 μM. The findings may point out a new direction of Stemona alkaloids inaddition to its traditional antitussive and insecticide activities.

关键词: Stemona japonica, Stemona alkaloids, Stemajapines A–C, Anti-inflammatory

Abstract: Three hitherto undescribed Stemona alkaloids, named stemajapines A-C (1-3), along with six known alkaloids (4-9), were isolated and identified from the roots of Stemona japonica (Blume) Miq. (Stemonaceae). Their structures were established by the analysis of the mass data, NMR spectra, and computational chemistry. Stemjapines A and B were degraded maistemonines without spiro-lactone ring and skeletal methyl from maistemonine. Concurrence of alkaloids 1 and 2 revealed an undescribed way to form diverse Stemona alkaloids. Bioassay results disclosed the anti-inflammatory natural constituents stemjapines A and C with IC50 values of 19.7 and 13.8 μM, respectively, compared to positive control dexamethasone with 11.7 μM. The findings may point out a new direction of Stemona alkaloids inaddition to its traditional antitussive and insecticide activities.

Key words: Stemona japonica, Stemona alkaloids, Stemajapines A–C, Anti-inflammatory