title: Triterpenoid from Lycopodium obscurum L.
abstract: To study the triterpenoid constituents from air-dried whole plants of Lycopodium obscurum L., the constituents were isolated by normal-phase and reverse-phase silica gel column chromatography from the EtOAc extract. Their structures were elucidated on the basis of spectral analysis. Five triterpenoids were purified and identified as 3beta, 19alpha-dihydroxy-20beta-acetate-serrat-14-en-21beta-ol (1), serratenediol (2), alpha-onocerin (3), 26-nor-8-oxo-alpha-onocerin (4), (3beta, 8beta, 14alpha, 21alpha)-26, 27-dinoronocerane-3, 8, 14, 21-tetrol (5). Compound 1 is a new serratane-type triterpene and compound 5 is isolated from this plant for the first time.
authors.affiliation: Laboratory for Natural Product Chemistry, College of Pharmacy, South Central University for Nationalities, Wuhan 430074, China.
authors.forename: Tie-Zhong
authors.initials: TZ
authors.lastname: Deng
authors.forename: Yong
authors.initials: Y
authors.lastname: Ai
authors.forename: Yu
authors.initials: Y
authors.lastname: Chen
authors.forename: Guang-Zhong
authors.initials: GZ
authors.lastname: Yang
mesh_terms: D032502:Lycopodium / Q000737:chemistry*; D010946:Plants, Medicinal / Q000737:chemistry; D014315:Triterpenes / Q000737:chemistry* / Q000302:isolation & purification*
chemical_list: D014315:Triterpenes; C438932:serratenediol; C409888:alpha-onocerin