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Published on: February 2, 2024
[Chemical Constituents from Usnea longgisima, a Traditional Mongolian Medicine(II)]
Objective:
To study the chemical constituents of traditional Mongolian medicine Usnea longissima.
Methods:
The compounds were isolated and purified by the methods of solvent extraction and chromatographic technique, and their structures were identified on the basis of the analyses of spectral data.
Results:
Three compounds were obtained and identified as 4-hydroxy-2-[ (2-hydroxy-4-methoxy-6-methylbenzoyl) oxy]-6-methylbenzoic acid (1), dibutyl phthalate (2) and diisobutyl phthalate (3).
Conclusion:
Compound 1 is a new compound and named as isoevernic acid, compounds 2 and 3 are isolated from Usnea longissima for the first time.
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