Monoterpenoid indole alkaloids from the fruits of Gelsemium elegans and their anti-inflammatory activities.
Bioorg Chem
; 107: 104624, 2021 02.
Article
in En
| MEDLINE
| ID: mdl-33465669
ABSTRACT
Two novel monoterpenoid indole alkaloids (MIAs), gelsechizines A-B (1-2), along with four known ones (3-6) were isolated from the fruits of Gelsemium elegans. Compound 1 features a new carbon skeleton with two additional carbon atoms forming a 4-methylpyridine unit. Their structures with absolute configurations were elucidated by NMR, MS, X-ray diffraction and electronic circular dichroism (ECD) calculations. Compounds 1-3 showed significant anti-inflammatory effects in vivo and in vitro, which may be related to the inhibition of the trecruitment of neutrophils and macrophages as well as the secretion of TNF-α and IL-6. Preliminary structure-activity relationship analysis revealed that the ß-N-acrylate moiety plays an important role in the anti-inflammatory effect.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Gelsemium
/
Secologanin Tryptamine Alkaloids
/
Macrophages
/
Anti-Inflammatory Agents
Limits:
Animals
Language:
En
Journal:
Bioorg Chem
Year:
2021
Document type:
Article