Phytochemical Investigation on Eucalyptus globulus Labill

摘要

Twelve compounds have been isolated from the methanolie extract of the whole plant of Eucalyptus globulus Labill namely, stigmasterol (1), stigmasterol 3-O-β-D-glucopyranoside (2), ursolic acid (3), α-amyrin (4), α-amyrin acetate (5) 4',5.7-trimethoxykaernpferol (6), genistein (7). naringenin (8), catechin (9), apicatechin (10), octyl-β-D-glucopyranoside (11), 7,8-dihydroxycoumarin (12), respectively. Their chemical structures were established on the basis of spectroscopic methods 1D (~1H and ~(13)C) NMR and 2D (COSY, HMQC and HMBC) NMR in addition to mass spectrometry and comparison with literature data.