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Two new diterpene polyesters from Euphorbia decipiens
Viqar Uddin Ahmad1, Javid Hussain, Hidayat Hussain
1H.E.J. Research Institute of Chemistry, University of Karachi, Karachi-75270, Pakistan. vuahmad@cyber.net.pk
Natural Product Research
|February 11, 2005
Summary
Two new diterpene polyesters were isolated from Euphorbia decipiens. These compounds, identified as myrsinol-type diterpenes, demonstrated urease enzyme inhibitory activity.
Area of Science:
- Natural Product Chemistry
- Organic Chemistry
- Pharmacology
Background:
- Euphorbia species are known sources of diverse bioactive compounds.
- Diterpene polyesters represent a significant class of natural products with varied biological activities.
Purpose of the Study:
- To isolate and characterize new myrsinol-type diterpene polyesters from Euphorbia decipiens.
- To evaluate the isolated compounds for their potential urease inhibitory activity.
Main Methods:
- Isolation of compounds using chromatographic techniques.
- Structure elucidation employing High-Resolution Electron Ionization Mass Spectrometry (HREIMS), Electron Ionization Mass Spectrometry (EIMS), Infrared (IR), Ultraviolet (UV) spectroscopy, and 1D and 2D Nuclear Magnetic Resonance (NMR) analyses (COSY, HMQC, HMBC, NOESY).
- In vitro assay to determine urease enzyme inhibition.
Main Results:
- Two novel myrsinol-type diterpene polyesters, 3,5,13,17-tetra-O-acetyl-7-O-benzoyl-15-hydroxymyrsinol (1) and 3,5,13,17-tetra-O-acetyl-7-O-butanoyl-13-hydroxymyrsinol (2), were successfully isolated.
- The structures of compounds 1 and 2 were confirmed through comprehensive spectroscopic analyses.
- Both isolated compounds exhibited significant activity against the urease enzyme.
Conclusions:
- The study successfully identified and characterized two new myrsinol-type diterpene polyesters from Euphorbia decipiens.
- The findings suggest that these novel compounds possess urease inhibitory properties, indicating potential therapeutic applications.