title: Cycloartane-type triterpenoids from Sphaerophysa salsula.
abstract: Four novel cycloartanes, named sphaerophysone A (1), B (2), C (3) and D (4), were isolated from the ethanol extract of Sphaerophysa salsula (Pall.) DC. The structures were elucidated on the basis of spectral evidence, and the stereochemistry of compound 1 was defined by X-ray crystallographic analysis. Sphaerophysone B (2) may be an artifact formed in the isolation procedure.
authors.affiliation: Department of Natural Medicines, Shenyang Pharmaceutical University, China.
authors.forename: Zhong-Jun
authors.initials: ZJ
authors.lastname: Ma
authors.forename: Xian
authors.initials: X
authors.lastname: Li
authors.forename: Jin-Hui
authors.initials: JH
authors.lastname: Wang
authors.forename: Yang
authors.initials: Y
authors.lastname: Lu
authors.forename: Wei
authors.initials: W
authors.lastname: Li
authors.forename: Qi-Tai
authors.initials: QT
authors.lastname: Zheng
authors.forename: Cheng
authors.initials: C
authors.lastname: Wang
authors.forename: Yu-Xia
authors.initials: YX
authors.lastname: Wang
authors.forename: Isao
authors.initials: I
authors.lastname: Fujii
authors.forename: Yutaka
authors.initials: Y
authors.lastname: Ebizuka
mesh_terms: D004365:Drugs, Chinese Herbal; D007887:Fabaceae / Q000737:chemistry*; D008968:Molecular Conformation; D015394:Molecular Structure; D014315:Triterpenes / Q000737:chemistry* / Q000302:isolation & purification
chemical_list: D004365:Drugs, Chinese Herbal; D014315:Triterpenes