title: Two new triterpenoids from the leaves and stems of Fritillaria hupehensis.
abstract: Two new cycloartane-type triterpenoids 25-hydroxyl-9,19-cycloart-22-ene-3-one (1) and (23Z)-9,19-cycloart-23-ene-3alpha,25-diol (2) along with 9,19-cycloart-25-ene-3beta, 24xi-diol (3) and cycloeucalenol (4) have been isolated from the leaves and stems of Fritillaria hupehensis Hsiao et K.C. Hsia. Their structures were elucidated on the basis of spectroscopic analysis.
authors.affiliation: Tongji Medical College of Huazhong University of Science and Technology, Wuhan, China.
authors.forename: Hui-Fang
authors.initials: HF
authors.lastname: Pi
authors.forename: Peng
authors.initials: P
authors.lastname: Zhang
authors.forename: Han-Li
authors.initials: HL
authors.lastname: Ruan
authors.forename: Yong-Hui
authors.initials: YH
authors.lastname: Zhang
authors.forename: Han-Dong
authors.initials: HD
authors.lastname: Sun
authors.forename: Ji-Zhou
authors.initials: JZ
authors.lastname: Wu
mesh_terms: D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000302:isolation & purification*; D031410:Fritillaria / Q000737:chemistry*; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D018515:Plant Leaves / Q000737:chemistry; D018547:Plant Stems / Q000737:chemistry; D013237:Stereoisomerism; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: C548426:25-hydroxyl-9,19-cycloart-22-ene-3-one; C102764:9,19-cycloart-23-ene-3,25-diol; D004365:Drugs, Chinese Herbal; D014315:Triterpenes