Highly oxygenous trichilin-type limonoids from Trichilia sinensis
Fa-Liang An1, Yong Yin1, Jun Luo1
1Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, China.
Chinese Journal of Natural Medicines
|December 29, 2019
Summary
Researchers isolated seven new limonoids from Trichilia sinensis fruits. One compound showed weak inhibitory activity against Hela cancer cells, indicating potential for further drug discovery.
Area of Science:
- Natural Products Chemistry
- Organic Chemistry
- Pharmacology
Background:
- Trichilia sinensis is a plant source of bioactive compounds.
- Limonoids are a class of terpenoids with diverse biological activities.
- Identifying novel chemical structures is crucial for drug discovery.
Purpose of the Study:
- To isolate and characterize new limonoids from Trichilia sinensis.
- To evaluate the cytotoxic activities of isolated compounds against cancer cell lines.
Main Methods:
- Isolation of compounds using chromatographic techniques.
- Structure elucidation via extensive spectroscopic methods (NMR, MS).
- Cytotoxicity assessment using the sulforhodamine B (SRB) assay.
Main Results:
- Six new trichilin-type limonoids (1-6) and one new ring intact limonoid (7) were identified.
- Compound 7 exhibited weak inhibitory activity against Hela cells at 40 μmol·L⁻¹.
- Compounds 1-6 showed no significant activity against A549 or Hela cells.
Conclusions:
- The study expands the known chemical diversity of Trichilia sinensis limonoids.
- Compound 7 represents a potential lead for developing novel anticancer agents.
- Further investigation into the structure-activity relationship of these limonoids is warranted.
