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A new quassinoid from Castela texana
J Dou1, J D McChesney, R D Sindelar
1Department of Pharmacognosy, Research Institute of Pharmaceutical Sciences, University of Mississippi, University 38677, USA.
Journal of Natural Products
|January 1, 1996
Summary
A novel coumaroyl quassinoid was discovered in Castela texana, marking a first in natural product isolation. This new compound and others were evaluated for cytotoxicity and antiprotozoal efficacy.
Area of Science:
- Natural Product Chemistry
- Phytochemistry
- Medicinal Chemistry
Background:
- Castela texana is a plant source of bioactive quassinoids.
- Quassinoids are known for diverse biological activities.
Purpose of the Study:
- To isolate and characterize new quassinoid compounds from Castela texana.
- To evaluate the isolated compounds for cytotoxicity and antiprotozoal activities.
Main Methods:
- Isolation of compounds using chromatographic techniques.
- Structure elucidation via spectroscopic analysis (NMR, MS).
- In vitro assays for cytotoxicity and antiprotozoal activity.
Main Results:
- A new quassinoid, 11-O-trans-p-coumaroyl amarolide, was identified.
- This is the first reported natural coumaroyl quassinoid.
- Several known quassinoids were also isolated and identified.
- Biological activity screening was performed on all isolated compounds.
Conclusions:
- The discovery of 11-O-trans-p-coumaroyl amarolide expands the known diversity of quassinoids.
- Further research is warranted to explore the therapeutic potential of these compounds.