title: A new pregnane steroid from Poria cum radix pini.
abstract: A new pregnane steroid and eight known compounds were isolated from Poria cum radix pini. Their structures were identified by spectroscopic data. All the known compounds were isolated from this species for the first time.
authors.affiliation: State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China.
authors.forename: Xiao-Gang
authors.initials: XG
authors.lastname: Tong
authors.forename: Jin-Lei
authors.initials: JL
authors.lastname: Liu
authors.forename: Yong-Xian
authors.initials: YX
authors.lastname: Cheng
mesh_terms: D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D055441:Poria / Q000737:chemistry*; D011278:Pregnanes / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D011278:Pregnanes; C549905:pregna-7-en-3,11,15,20-quadriol