title: [Quinic acid esters from herba of Siphonostegia chinensis].
abstract: OBJECTIVE
  To study the bioactive constituents, quinic acid esters, from Siphonostegia chinensis.
  
  
  METHODS
  The compounds were extracted with solvents, isolated by various column chromatography and identified by spectroscopic methods.
  
  
  RESULTS
  Three quinic acid esters were isolated and identified as 3,4-di-O-caffeoylquinic acid(I), macranthoin F(II), and methyl ester of 3, 4,5-tri-O-caffeoylquinic acid (III).
  
  
  CONCLUSIONS
  All compounds were isolated from Siphonostegia for the first time.
authors.affiliation: Institute of Medicinal Plant, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100094, China.
authors.forename: Hong-liang
authors.initials: HL
authors.lastname: Jiang
authors.forename: Li-zhen
authors.initials: LZ
authors.lastname: Xu
authors.forename: Xue-dong
authors.initials: XD
authors.lastname: Yang
authors.forename: Da
authors.initials: D
authors.lastname: Zhang
authors.forename: Shi-lin
authors.initials: SL
authors.lastname: Yang
authors.forename: Zhong-mei
authors.initials: ZM
authors.lastname: Zou
mesh_terms: D002726:Chlorogenic Acid / Q000031:analogs & derivatives / Q000737:chemistry / Q000302:isolation & purification*; D010946:Plants, Medicinal / Q000737:chemistry*; D011786:Quality Control; D012503:Saponins / Q000737:chemistry / Q000302:isolation & purification*; D028083:Scrophulariaceae / Q000737:chemistry*
chemical_list: D012503:Saponins; C478101:macranthoin F; D002726:Chlorogenic Acid; C478100:3,4-di-O-caffeoylquinic acid