Chemical constituents from ethyl acetate extract of Ganoderma lucidum

Twelve compounds were isolated and purified from ethyl acetate extract of Ganoderma lucidum,and were identified as chrysophanol( 1 ),emodin( 2 ),baicalein( 3 ),rhamnetin( 4 ),isoliquiritigenin( 5 ),limonin( 6 ),2,5-dihydroxyacetophenone( 7 ),benzoic acid( 8 ),ganodermanontriol( 9 ),cerevisterol( 10 ),ergosta-7,22-dien-3β-ol( 11 ) and ergosterol( 12 ) by physicochemical properties and spectroscopic analysis.Compounds 1-6 were first isolated from the genus Ganoderma,while compound 7 was first isolated from this medicinal material.