title: [Study on chemical constituents from petroleum ether-soluble parts of cones of Platycladus orientalis].
abstract: OBJECTIVE
  To study chemical constituents from petroleum ether-soluble parts of cones of Platycladus orientalis.
  
  
  METHODS
  The compound were isolaeed by repeated column chromatography of silica gel and Sephadex LH-20. The structures were elucidated by physicochemical properties and spectrum analysis.
  
  
  RESULTS
  Seven constituents were isolated and identified as sandaracopimaric acid (1), 6alpha-hydroxy sandaracopimaric acid (2), ent-isopimara-8 (14), 15-dien-3beta, 19-diol (3), ent-isopimara-8 (9), 15-dien-3beta-ol (4), ent-isopimara-8 (14),15- dien-3beta-ol (5), isocupressic acid (6) and 15-acetylisocupressic acid (7).
  
  
  CONCLUSIONS
  Compounds 2 and 7 are isolated from this genus for the first time.
authors.affiliation: School of Life Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, China.
authors.forename: Jian-Ping
authors.initials: JP
authors.lastname: Ma
authors.forename: Hu-Biao
authors.initials: HB
authors.lastname: Zhao
authors.forename: Xiu-Zhuang
authors.initials: XZ
authors.lastname: Li
authors.forename: Fang
authors.initials: F
authors.lastname: Dai
authors.forename: Ting-Ting
authors.initials: TT
authors.lastname: Pei
authors.forename: Yan-Yan
authors.initials: YY
authors.lastname: Wang
mesh_terms: D000473:Alkanes / Q000737:chemistry; D002264:Carboxylic Acids / Q000737:chemistry / Q000302:isolation & purification; D029779:Cupressaceae / Q000737:chemistry*; D004224:Diterpenes / Q000737:chemistry* / Q000302:isolation & purification; D004365:Drugs, Chinese Herbal / Q000737:chemistry* / Q000302:isolation & purification; D005638:Fruit / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D013764:Tetrahydronaphthalenes / Q000737:chemistry / Q000302:isolation & purification
chemical_list: D000473:Alkanes; D002264:Carboxylic Acids; D004224:Diterpenes; D004365:Drugs, Chinese Herbal; D013764:Tetrahydronaphthalenes; C110793:isocupressic acid; C082072:sandaracopimaric acid