Chemical Constituents from fruits of Eucalyptus globulus / 中草药

ABSTRACT

Objective: To study the chemical constituents from the fruits of Eucalyptus globulus. Methods: The chemical constituents were separated by column chromatography, such as silica gel, sephadex LH-20, and semi-preparative HPLC. On the basis of spectral data analysis, their structures were elucidated. Results: Twelve compounds were isolated and purified which structures were elucidated as 1,10-dioxotayloriane (1), litseagermacrane (2), (-)-globulol (3), (-)-epiglobulol (4), viridiflorol (5), oleanolic acid (6), betulinic acid (7), ursolic acid (8), robustanic acid (9), 1-(2,6-dihydroxy-4-methoxy-3,5-dimethylphenyl)-2-methylbutan-1-one (10), ellagic acid (11), and 3-O-methylellagic acid-4'-O-α-L-rhamnopyranoside (12). Conclusion: Compounds 1 and 2 are isolated from the Eucalyptus L. Herit for the first time, compounds 9 and 10 are isolated from this plant for the first time.