Uncommon Bis-Amide Matrine-type Alkaloids From Sophora alopecuroides With Anti-inflammatory Effects

Autor: Ding Luo, Zhenchao Tu, Wenjing Yin, Chunlin Fan, Nenghua Chen, Zhongnan Wu, Weilong Ding, Yaolan Li, Guocai Wang, Yubo Zhang
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Frontiers in Chemistry, Vol 9 (2021)
Druh dokumentu: article
ISSN: 2296-2646
DOI: 10.3389/fchem.2021.740421
Popis: Four new alkaloids (1–4) belonging to rare examples of bis-amide matrine-type were isolated from the seeds of sophora alopecuroides. Their structures including absolute configuration were determined by extensive spectroscopic analysis, electronic circular dichroism (ECD) interpretation, and X-ray diffraction crystallography. Chemically, bis-amide matrine-type alkaloids can provide new molecular template for structural modification. Compounds 3–4 displayed obvious anti-inflammatory effects based on the inhibition of two key pro-inflammatory cytokines [tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6)] in a dose-dependent manner, with IC50 values from 35.6 to 45.8 μm.
Databáze: Directory of Open Access Journals