Related Experiment Video
Updated: Jun 17, 2026
Employing Pressurized Hot Water Extraction (PHWE) to Explore Natural Products Chemistry in the Undergraduate Laboratory
Published on: November 7, 2018
[Studies on the chemical constituents from Euphorbia chrysocoma]
Chun-yong Jiang1, Shu-zhen Mu, Bin Deng
1The College of Life Science, Guizhou University, Guiyang 550025, China. chunyong20@hotmail.com
Objective:
To study the chemical constituents from the aerial part of Euphorbia chrysocoma.
Methods:
All compounds were isolated and purified by many methods, including siliga gel and reversed phase RP-18 column chromatographies, preparative thin layer chromatography, Sephadex LH-20, and recrystallization. Their structures were mainly elucidated by ESI-MS and NMR spectra and their physical characters.
Results:
Six compounds were isolated from the petroleum ether section from 75% ethanol extraction of the material. Their structures were identified as taraxerol (1), epitaraxerol (2), beta-sistosterol (3), beta-sitostenone (4), jolkinolide E (5), and sesamin (6).
Conclusion:
Compounds 1, 2, 4, 5, and 6 are isolated from this plant for the first time.
More Related Videos
07:16High-resolution Tandem Mass Spectrometry for Studying Chemical Constituents of Gynura bicolor DC
Published on: February 2, 2024
08:20Systematic Approach to Identify Novel Antimicrobial and Antibiofilm Molecules from Plants' Extracts and Fractions to Prevent Dental Caries
Published on: March 31, 2021