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Original Articles

Separation of High Purity Przewaquinone A by High‐Speed Countercurrent Chromatography

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Pages 1267-1274 | Received 17 Nov 2002, Accepted 22 Dec 2002, Published online: 06 Feb 2007

References

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  • Yang , B.‐J. , Qian , M.‐K. , Qin , G.‐W. and Chen , Z.‐X. 1981 . Studies on the active principles of Dan‐Shen. V. Isolation and structures of przewaquinone A and przewaquinone B . Acta Pharm. Sinica , 16 : 837 – 841 .
  • Ito , Y. 1986 . High‐speed countercurrent chromatography . CRC Crit. Rev. Anal. Chem. , 17 : 65 – 143 .
  • Li , B. , Niu , F.‐D. , Lin , Z.‐W. , Zhang , H.‐J. , Wang , D.‐Z. and Sun , H.‐D. 1991 . Diterponoids from the roots of Salvia przewalskii . Phytochemistry , 30 : 3815 – 3817 .
  • Qian , M.‐K. , Yang , B.‐J. , Qin , G.‐W. and Chen , Z.‐W. 1980 . Separation and chemical structure of przewaquinone A and B . Yao Hsueh Tung Pao , 15 : 193

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