科研之友
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摘要
Phytochemical investigation of Eucommia ulmoides bark led to the isolation of a new phenolic glucoside which was named eucophenoside. The structure of eucophenoside was elucidated by extensive spectroscopic data analysis. In addition, seven known flavonoids were reported for the first time to be present in the bark of E. ulmoides: wogonin, oroxylin A, baicalein, 4,2',4'-trihydroxychalcone, (alpha R)-alpha,4,2',4'-tetrahydroxydihydrochalcone, (alpha R)-alpha-O-beta-D-glucopyranosyl-4,2', 4'-trihydroxydihydrochalcone, and wogonoside.
