NATURAL PRODUCT RESEARCH AND DEVELOPMENT ›› 2011, Vol. 23 ›› Issue (2): 253-257.

• Article • Previous Articles     Next Articles

Chemical Constituents from the Roots of Rhododendron spiciferum

吴兆圆，李蓉涛*   

  1. College of Life Science and Technology, Kunming University of Science and Technology, Kunming
  • Received:2009-09-21 Online:2011-04-25 Published:2011-10-14

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Abstract:

Fifteen compounds were isolated from the roots of Rhododendron spiciferum by silica gel and Sephadex LH-20 column chromatography. The structures were elucidated on the basis of spectral characteristics and identified as: (–)-lyoniresinol (1)，(+)-cyclo-olivil (2)，(–)-lyoniresinol-9-O-β-D-glucopyranoside (3)，(–)-lyoniresinol-9-O-β-D-xylopyranoside (4)，eucryphin (5)，3，5，7-trihydroxychromone-3-O-α-L-arabinopyranoside (6)，naringenin (7)，eriodictyol (8)，taxifolin (9)，catechin (10)，trans-taxifolin-3-O-α-L-arabinopyranoside (11)，engelitin (12)，trans-taxifolin-3-O-α-L-arabinofuranside (13)，taraxerol (14)，taraxerol acetate (15). Compounds 1-6，8，9 and 13-15 were obtained from Rhododendron spiciferum for the first time.

Key words: Rhododendron spiciferum, Ericaceae, lignans, flavonoids, triterpenoids