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Published on: August 16, 2018
New bioactive triterpenoids from Melia volkensii
L L Rogers1, L Zeng, J F Kozlowski
1Department of Medicinal Chemistry and Molecular Pharmacology, School of Pharmacy and Pharmacal Sciences, Purdue University, West Lafayette, Indiana 47907, USA.
Journal of Natural Products
|February 14, 1998
Summary
Two new natural products, meliavolkinin and melianin C, were isolated from Melia volkensii root bark. Compound 5 exhibited selective cytotoxicity against prostate and pancreatic cancer cells, comparable to adriamycin.
Area of Science:
- Natural Product Chemistry
- Medicinal Chemistry
- Phytochemistry
Background:
- Melia volkensii is a plant species with potential medicinal properties.
- Natural products are a rich source of novel therapeutic agents.
- Identifying bioactive compounds from plant sources is crucial for drug discovery.
Purpose of the Study:
- To isolate and characterize new bioactive compounds from Melia volkensii root bark.
- To evaluate the cytotoxic activities of isolated compounds against human tumor cell lines.
- To identify potential leads for cancer therapy.
Main Methods:
- Bioactivity-directed fractionation of Melia volkensii root bark extract.
- Structure elucidation using spectral data (NMR, MS) and chemical analysis.
- Cytotoxicity assays against various human tumor cell lines.
Main Results:
- Isolation of two new compounds, meliavolkinin (1) and melianin C (3), and two known compounds, 1,3-diacetylvilasinin (2) and melianin B (4).
- Synthesis of diketomelianin B (5) and triketomelianin B (6) from melianin B.
- Compounds 1-6 demonstrated marginal cytotoxicity; compound 5 showed selective cytotoxicity against PC-3 (prostate) and PACA-2 (pancreatic) cell lines.
Conclusions:
- Melia volkensii is a source of novel cytotoxic natural products.
- Compound 5 (diketomelianin B) displays selective cytotoxicity against specific cancer cell lines.
- Further investigation of compound 5 is warranted for its potential as an anticancer agent.
