Hydrolyzable tannins and related polyphenols from Eucalyptus globulus.
Eucaglobulin (1), a new complex of gallotannin and monoterpene, was isolated from the leaves of Eucaloptus globulus. Its structure was elucidated on the basis of spectral data. Four known hydrolyzable tannins [tellimagrandin I (2), eucalbanin C (3), 2-O-digalloyl-1,3,4-tri-O-galloyl-beta-D-glucose (4), 6-O-digalloyl-1,2,3-tri-O-galloyl-beta-D-glucose (5)], as well as gallic acid (6) and (+)-catechin (7), were also isolated. The antibacterial effects of some of these compounds were examined.
Hou
A J
AJ
Laboratory of Phytochemistry, Kunming Institute of Botany, Chinese Academy of Sciences.
Liu
Y Z
YZ
Yang
H
H
Lin
Z W
ZW
Sun
H D
HD
D000900:Anti-Bacterial Agents / Q000494:pharmacology; D001419:Bacteria / Q000187:drug effects; D002845:Chromatography; D004365:Drugs, Chinese Herbal; D005052:Eucalyptus / Q000737:chemistry*; D006801:Humans; D006868:Hydrolysis; D047348:Hydrolyzable Tannins; D009682:Magnetic Resonance Spectroscopy; D008826:Microbial Sensitivity Tests; D015394:Molecular Structure; D039821:Monoterpenes; D018515:Plant Leaves / Q000737:chemistry; D010946:Plants, Medicinal; D013634:Tannins / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D013729:Terpenes / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology
D000900:Anti-Bacterial Agents; D004365:Drugs, Chinese Herbal; D047348:Hydrolyzable Tannins; D039821:Monoterpenes; D013634:Tannins; D013729:Terpenes; C429636:eucaglobulin