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Cytotoxic trichilin-type limonoids from Melia azedarach
1Department of Natural Medicines, Tokyo University of Pharmacy & Life Science, Japan.
Bioorganic & Medicinal Chemistry
|August 1, 1996
Summary
Researchers isolated nine trichilin compounds, including five novel ones, from Melia azedarach root bark. These compounds were tested for cytotoxic activity against P388 cells using the MTT assay.
Area of Science:
- Natural Product Chemistry
- Pharmacognosy
- Medicinal Chemistry
Background:
- Melia azedarach (neem) is a plant species known for its diverse phytochemical constituents.
- Trichilins are a class of limonoids found in M. azedarach, with potential biological activities.
- Understanding the chemical diversity and bioactivity of natural products is crucial for drug discovery.
Purpose of the Study:
- To isolate and characterize new trichilin-type limonoids from the root bark of Melia azedarach.
- To evaluate the cytotoxic potential of the isolated compounds against P388 cancer cells.
Main Methods:
- Phytochemical investigation of Melia azedarach root bark extract.
- Isolation of compounds using chromatographic techniques.
- Structure elucidation through comprehensive spectroscopic analysis (e.g., NMR, MS).
- In vitro cytotoxic activity assessment using the MTT assay against P388 cells.
Main Results:
- Five new trichilin-type limonoids (1-5) were identified and named.
- Four known trichilin compounds (6-9) were co-isolated.
- The structures of all nine compounds were fully elucidated.
- Cytotoxic activity against P388 cells was evaluated for the isolated compounds.
Conclusions:
- The study successfully expanded the known chemical diversity of trichilin limonoids.
- The isolated compounds from Melia azedarach root bark warrant further investigation for their therapeutic potential.
- Spectroscopic methods are effective for structural determination of complex natural products.