title: Drybonioside, a new glucoside from the Drynaria bonii H. Christ rhizomes.
abstract: Drynaria bonii H. Christ, a Vietnam traditional medicinal plant, is used for the treatment of osteoporosis, bone fractures, tinnitus, etc. (Ho PH. 2002. Vietnamese plants. Hanoi: Publisher of Young; Loi DT. 2004. Medicinal plants and remedy of Vietnam. Hanoi: Publisher of Medicine). Based on column chromatography, a new glucoside named drybonioside (5) and four known compounds α-tocopherol (1), 24-methylencycloartan-3β-ol (2), triphyllol (3) and ethyl β-D-fructopyranoside (4) were isolated and identified from hexane and methanol extracts of D. bonii. The structures of new compound were elucidated on the basis of NMR and MS spectroscopic analysis.
authors.affiliation: a Department of Chemistry , Faculty of General Science, Tiengiang University , National Highway No. 1, Chau Thanh Dist , Tiengiang Province , Vietnam.
authors.forename: Thi Nhat Trinh
authors.initials: TN
authors.lastname: Pham
authors.forename: Ðinh Tri
authors.initials: ÐT
authors.lastname: Mai
authors.forename: Thi My Nuong
authors.initials: TM
authors.lastname: Huynh
authors.forename: Tien Dung
authors.initials: TD
authors.lastname: Le
mesh_terms: D005960:Glucosides / Q000737:chemistry* / Q000302:isolation & purification; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D015394:Molecular Structure; D010936:Plant Extracts / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry; D029621:Polypodiaceae / Q000737:chemistry*; D027343:Rhizome / Q000737:chemistry; D014744:Vietnam
chemical_list: D005960:Glucosides; D010936:Plant Extracts; C000596499:drybonioside
keywords: Drynaria bonii; glucoside; new compound; terpenoids