title: [Studies on the constituents from Cacalia ambigua].
abstract: OBJECTIVE
  To study the constituents of Cacalia ambigua.
  
  
  METHODS
  The chemical constituents were isolated from the plant by all kinds of column chromatographies and their structures were identified by spectral methods.
  
  
  RESULTS
  Four compounds were isolated and identified as ent-kaur-16-en-19-oic acid (1), 13-beta-Kaur-16 beta-ol (2), beta-sitosterol (3) and 1-glyceryl nonadecanoic acid ester (4).
  
  
  CONCLUSIONS
  Compounds 1-4 are isolated from this plant for the first time, and compounds 1 and 2 and isolated from this genus for the first time.
authors.affiliation: School of Pharmacy, Zhengzhou University, Zhengzhou 450051, China. cfwang1040@126.com
authors.forename: Cai-Fang
authors.initials: CF
authors.lastname: Wang
authors.forename: Yu
authors.initials: Y
authors.lastname: Zhao
authors.forename: Jun-Ping
authors.initials: JP
authors.lastname: Li
authors.forename: Na
authors.initials: N
authors.lastname: Wang
authors.forename: Yan-Bing
authors.initials: YB
authors.lastname: Zhang
mesh_terms: D019659:Asteraceae / Q000737:chemistry*; D004224:Diterpenes / Q000737:chemistry / Q000302:isolation & purification; D005227:Fatty Acids / Q000737:chemistry / Q000302:isolation & purification; D015394:Molecular Structure; D010946:Plants, Medicinal / Q000737:chemistry*; D027343:Rhizome / Q000737:chemistry; D012855:Sitosterols / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D004224:Diterpenes; D005227:Fatty Acids; D012855:Sitosterols; C014341:argyrophilic acid; C517969:nonadecanoic acid