title: Triterpenoids from Angiopteris palmiformis.
abstract: Two new fernane triterpenoids, 7alpha-hydroxyfern-8-en-11-one (1) and 11beta-hydroxyfern-8-en-7-one (2), and two new filicane triterpenoids, 3beta-hydroxyfilic-4(23)-ene (3) and filicenol (5), together with one known filicane-type triterpenoid, 3alpha-hydroxyfilic-4(23)-ene (4), were isolated from the methyl alcohol extract of the leaves of Angiopteris palmiformis. Their structures were elucidated on the basis of extensive analyses of their spectroscopic data (NMR, MS, IR) and comparison with spectroscopic data in the literature.
authors.affiliation: Department of Biological Science and Technology, Meiho Institute of Technology, Pingtung 91201, Taiwan.
authors.forename: Chiy-Rong
authors.initials: CR
authors.lastname: Chen
authors.forename: Yun-Wen
authors.initials: YW
authors.lastname: Liao
authors.forename: Hui-Ting
authors.initials: HT
authors.lastname: Wu
authors.forename: Wen-Ling
authors.initials: WL
authors.lastname: Shih
authors.forename: Chih-Ying
authors.initials: CY
authors.lastname: Tzeng
authors.forename: Sheng-Zehn
authors.initials: SZ
authors.lastname: Yang
authors.forename: Carlos Eduardo
authors.initials: CE
authors.lastname: Hernandez
authors.forename: Chi-I
authors.initials: CI
authors.lastname: Chang
mesh_terms: D029624:Ferns / Q000737:chemistry*; D008968:Molecular Conformation; D018515:Plant Leaves / Q000737:chemistry*; D013045:Species Specificity; D013237:Stereoisomerism; D014315:Triterpenes / Q000737:chemistry* / Q000302:isolation & purification
chemical_list: C549746:3beta-hydroxyfilic-4(23)-ene; C549745:7alpha-hydroxyfern-8-en-11-one; D014315:Triterpenes; C549747:filicenol