Affiliation:
1. Research Institute, School of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou, China
Abstract
Two oxygenated eremophilane-type sesquiterpenoids, possessing C21 skeleton, a pair epimers, have been isolated from the whole plants of Ligularia macrophylla (Compositae). Their structures were determined by analysis of infrared, ultraviolet, nuclear magnetic resonance, high-resolution electrospray ionization mass spectrometry data, and electronic circular dichroism as well as comparison with literature data. Of the two compounds, the compound 1 is unknown, and the other is known. These compounds are evaluated for antibacterial activity of Staphylococcus aureus, Escherichia coli, Bacillus subtilis, and Bacillus cereus.
Funder
innovation and entrepreneurship talent project of lanzhou
Research Foundation of Education Bureau of Gansu Province
national natural science foundation of china
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