title: [Phenols from the rhizomes of Arachniodes exilis].
abstract: OBJECTIVE
  To study the chemical constituents of Arachniodes exilis.
  
  
  METHODS
  The methanolic extract was isolated and purified by silica gel, C18 reverse phase silica gel and Sepadex LH-20 gel column chromatography. The chemical structures were elucidated on the basis of the physicochemical properties and spectral data.
  
  
  RESULTS
  Eight phenolic compounds were obtained and identified as aspidin-BB (I), 4-methyl-2-butyl-3,5-dihydroxyphenol (II ), eriodictyol (III), epicatechin (IV), procyanidin B2 (V), miscathoside (VI), eriodictyol-7-O-beta-D-glucopyranuronide (VII), luteolin-4'-O-beta-D-glucopyranuronide (VIII), respectively.
  
  
  CONCLUSIONS
  Compounds II-VIII are obtained from this plant for the first time.
authors.affiliation: College of Pharmacy,Tongji Medical Center, Huazhong University of Science and Technology, Wuhan 430030,China.
authors.forename: Dao-Nian
authors.initials: DN
authors.lastname: Zhou
authors.forename: Jin-Lan
authors.initials: JL
authors.lastname: Ruan
authors.forename: Ya-Ling
authors.initials: YL
authors.lastname: Cai
authors.forename: Song-An
authors.initials: SA
authors.lastname: Zhang
authors.forename: Xiao-Hui
authors.initials: XH
authors.lastname: Wu
authors.forename: Chao
authors.initials: C
authors.lastname: Feng
mesh_terms: D044946:Biflavonoids / Q000737:chemistry / Q000302:isolation & purification; D002392:Catechin / Q000737:chemistry / Q000302:isolation & purification; D032491:Dryopteridaceae / Q000737:chemistry*; D044950:Flavanones / Q000737:chemistry / Q000302:isolation & purification; D010636:Phenols / Q000737:chemistry / Q000302:isolation & purification*; D010946:Plants, Medicinal / Q000737:chemistry*; D044945:Proanthocyanidins / Q000737:chemistry / Q000302:isolation & purification; D027343:Rhizome / Q000737:chemistry*
chemical_list: D044946:Biflavonoids; D044950:Flavanones; D010636:Phenols; D044945:Proanthocyanidins; C479580:procyanidin B2; D002392:Catechin; C007619:eriodictyol