title: Two new compounds from the flowers of Rhododendron molle.
abstract: OBJECTIVE
  To study the chemical constituents of the flowers of Rhododendron molle.
  
  
  METHODS
  Compounds were isolated by repeated chromatography over silica gel and Sephadex LH-20. Structures were elucidated based on spectral techniques, mainly 1D- and 2D-NMR and mass spectrometric analyses.
  
  
  RESULTS
  Two compounds (1 and 2) were isolated.
  
  
  CONCLUSIONS
  Compounds 1 and 2 were identified as two new compounds: 2α, 10α-epoxy-3β, 5β, 6β, 14β, 16α-hexahydroxy-grayanane and benzyl 2, 6-dihydroxybenzoate-6-O-α-L-rhamnopyranosyl-(1→3)-β-D-glucopyranoside, respectively.
authors.affiliation: Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China; College of Pharmacy, University of Illinois at Chicago, Chicago IL, 60612, USA.
authors.forename: Shao-Nong
authors.initials: SN
authors.lastname: Chen
authors.affiliation: Key Laboratory of Tea Biochemistry Biotechnology, Ministry of Education, Anhui Agricultural University, Hefei 230036, China.
authors.forename: Guan-Hu
authors.initials: GH
authors.lastname: Bao
authors.affiliation: Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China.
authors.forename: Li-Quan
authors.initials: LQ
authors.lastname: Wang
authors.affiliation: Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China. Electronic address: gwqin@mail.shcnc.ac.cn.
authors.forename: Guo-Wei
authors.initials: GW
authors.lastname: Qin
mesh_terms: D004365:Drugs, Chinese Herbal / Q000737:chemistry* / Q000302:isolation & purification; D035264:Flowers / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D029793:Rhododendron / Q000737:chemistry*
chemical_list: D004365:Drugs, Chinese Herbal
keywords: Ericaceae; Grayanane diterpenoid; NMR spectroscopy; Rhododendrum molle