Góp phần nghiên cứu thành phần hóa học cây cải đồng (Grangea maderaspatana L. Poir)

Two eudesmane derivatives 3-angeloyloxy-4-acetoxy-7,11-dehydroeudesmane-8-one, 3- angeloyloxy-4-acetoxy-6,7-dehydroeudesmane-11-hydroperoxy-8-one have been isolated from the n-hexane extract of Grangea maderaspatana L. Poir collected in Vietnam, besides stigmasterol, taraxasterol and taraxasteryl acetate. Their structures were deduced from spectroscopic studies, including 2D-shift correlation COSY, DEPT, HMQC, HMBC-NMR experiments.