title: [Study on chemical constituents in herbs of Anoectochilus roxburghii II].
abstract: OBJECTIVE
  To study the chemical constituents of Anoectochilus roxburghii.
  
  
  METHODS
  Silica gel and sephadex LH-20 column chromotography were used in the isolation from the ethanol extracts of the whole plant, the compounds were determined on the basis of various modern spectroscopic analysis and physical constants.
  
  
  RESULTS
  Five compounds were isolated from the CHCl3 soluble portion, identified as p-Hydroxybenzaldehyde (I), ferulic acid (II), quercetin (III), daucosterol (IV), cirsilineol (V).
  
  
  CONCLUSIONS
  All these compounds were isolated from the plant for the first time, compound V was isolated from the Orchid Family for the first time, the other compounds were isolated from this genus for the first time.
authors.affiliation: Institute of Medical Plant Development, Chinese Academy of Medicinal Sciences and Peking Union Medical College, Beijing 100094, China.
authors.forename: Chun-nian
authors.initials: CN
authors.lastname: He
authors.forename: Chun-lan
authors.initials: CL
authors.lastname: Wang
authors.forename: Shun-xing
authors.initials: SX
authors.lastname: Guo
authors.forename: Jun-shan
authors.initials: JS
authors.lastname: Yang
authors.forename: Pei-gen
authors.initials: PG
authors.lastname: Xiao
mesh_terms: D001547:Benzaldehydes / Q000737:chemistry / Q000302:isolation & purification; D003373:Coumaric Acids / Q000737:chemistry / Q000302:isolation & purification; D047309:Flavones / Q000737:chemistry / Q000302:isolation & purification*; D029595:Orchidaceae / Q000737:chemistry*; D010946:Plants, Medicinal / Q000737:chemistry*; D011794:Quercetin / Q000737:chemistry / Q000302:isolation & purification; D012855:Sitosterols / Q000737:chemistry / Q000302:isolation & purification
chemical_list: D001547:Benzaldehydes; D003373:Coumaric Acids; D047309:Flavones; D012855:Sitosterols; C057618:cirsilineol; D011794:Quercetin; C004999:ferulic acid; C011483:4-hydroxybenzaldehyde; C011015:lyoniside