title: [New chemical constituents from Radix Polygoni Multiflori after processing].
abstract: OBJECTIVE
  To study the new chemical constituents from Radix Polygoni Multiflori after processing.
  
  
  METHODS
  Various kinds of chromatographic methods were used to deparate the chemical constituents from Radix Polygoni Multiflori after processing. Their structures were determined by NMR and MS spectral data.
  
  
  RESULTS
  The two new compounds were 2,3-dihydro-3,5-dihydroxy-6-meth-yl-4 (H)-pyran-4-one(I) and 5-hydruoxymethyl-furfuran(II).
  
  
  CONCLUSIONS
  It is the first time that compound I and 1I were isolated from Polygoni.
authors.affiliation: China Academy of Chinese Medical Science, The Institute of Basic Theory, Beijing 100700, China.
authors.forename: Zhen-li
authors.initials: ZL
authors.lastname: Liu
authors.forename: Lin-fu
authors.initials: LF
authors.lastname: Li
authors.forename: Zhi-qian
authors.initials: ZQ
authors.lastname: Song
authors.forename: Chun
authors.initials: C
authors.lastname: Wang
authors.forename: Ling
authors.initials: L
authors.lastname: Zhang
authors.forename: Zhi-mao
authors.initials: ZM
authors.lastname: Chao
mesh_terms: D002851:Chromatography, High Pressure Liquid / Q000379:methods; D004365:Drugs, Chinese Herbal / Q000737:chemistry* / Q000302:isolation & purification; D000431:Ethanol / Q000737:chemistry; D018517:Plant Roots / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D028502:Polygonum / Q000737:chemistry*; D011739:Pyrimethamine / Q000031:analogs & derivatives* / Q000737:chemistry / Q000302:isolation & purification; D012997:Solvents; D013678:Technology, Pharmaceutical
chemical_list: D004365:Drugs, Chinese Herbal; D012997:Solvents; C006308:metoprine; D000431:Ethanol; D011739:Pyrimethamine