title: Cepharatines A-D, hasubanan-type alkaloids from Stephania cepharantha.
abstract: Four new hasubanan-type alkaloids, cepharatines A-D (1-4), were isolated from the leaves and stems of Stephania cepharantha, and their structures were elucidated by spectroscopic analysis. The structure of 1 was further confirmed by X-ray crystallographic diffraction.
authors.affiliation: The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, Guiyang Guizhou 550002, People's Republic of China.
authors.forename: Li
authors.initials: L
authors.lastname: He
authors.forename: Yuan-Hu
authors.initials: YH
authors.lastname: Zhang
authors.forename: Huan-Yu
authors.initials: HY
authors.lastname: Guan
authors.forename: Jian-Xin
authors.initials: JX
authors.lastname: Zhang
authors.forename: Qian-Yun
authors.initials: QY
authors.lastname: Sun
authors.forename: Xiao-Jiang
authors.initials: XJ
authors.lastname: Hao
mesh_terms: D000470:Alkaloids / Q000737:chemistry / Q000302:isolation & purification*; D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000302:isolation & purification*; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D018515:Plant Leaves / Q000737:chemistry; D031607:Stephania / Q000737:chemistry*
chemical_list: D000470:Alkaloids; D004365:Drugs, Chinese Herbal