Chinese Journal of Magnetic Resonance ›› 1991, Vol. 8 ›› Issue (4): 379-386.

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NMR STUDY ON THE STRUCTURE OF A NEW PHYTOECDYSTEROID

Gao Congyuan1, Guo Dean2, Qiao Liang1, He Wenyi1, Lou Zhicen2   

  1. Center of Analysis & Computation, Beijing Medical University, Beijing 100083, China
  • Received:1990-08-15 Revised:1991-02-25 Published:1991-12-05 Online:2018-01-20

Abstract: The chemical structure of a new phytoecdysteroid obtained from Rhaponticum uniflorum (L.)DC. has been first reported in this paper. It has been identified as 2β, 3β, llα, 14α, 20,22,24-heptahydroxy-5β (20R, 22R, 24S)-choiest-7-en-6-one by using several NMR techniques and other spectraldata.

Key words: Rhaponticum unifloruin L.DC, Phytoecdysteroid, Rhapontisterone, NMR