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A new tetracyclic triterpenoid compound from Mastich
Jian-Bo Gao1, Guo-Yu Li, Jian Huang
1School of Pharmacy, Shihezi University, Shihezi 832002, China.
Journal of Asian Natural Products Research
|March 9, 2013
Summary
Researchers isolated a novel tetracyclic triterpenoid, mastichinoic acid A, from Mastich. Its chemical structure was elucidated using advanced spectroscopic methods.
Area of Science:
- Natural Products Chemistry
- Organic Chemistry
- Phytochemistry
Background:
- Mastich is a plant source known for potential bioactive compounds.
- Triterpenoids represent a diverse class of natural products with various biological activities.
Purpose of the Study:
- To isolate and characterize new chemical entities from Mastich.
- To determine the precise chemical structure of the isolated compound.
Main Methods:
- Isolation of the compound using chromatographic techniques.
- Structure elucidation employing Mass Spectrometry (MS), 1D and 2D Nuclear Magnetic Resonance (NMR) spectroscopy.
- High-Resolution Time-of-Flight Mass Spectrometry (HRTOFMS) for accurate mass determination.
Main Results:
- A new tetracyclic triterpenoid, designated mastichinoic acid A (1), was successfully isolated.
- The structure was determined to be 3,7-dioxo-11β-hydroxy-5α-tirucalla-8,24(Z)-dien-26-oic acid.
- Comprehensive spectroscopic data confirmed the proposed structure.
Conclusions:
- Mastichinoic acid A is a novel tetracyclic triterpenoid.
- The study expands the known chemical diversity of compounds isolated from Mastich.
- The detailed structural information provides a basis for future investigations into its properties.
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