Abstract
Preparative high-speed counter-current chromatography (HSCCC) was successfully applied to purify phenylpropanoids from the stem and root bark of Daphne giraldii Nitsche, a traditional Chinese medicine. Their structures were identified on the basis of 1H NMR and 13C NMR technology. The two-phase solvent system composed of n -hexane–ethyl acetate–methanol–water (2: 3: 0.5: 4, v/v/v/v) was selected for HSCCC. A total of 8.0 mg woonenoside XI (1) and 18.0 mg daphnetin (2) were obtained in one-step separation from 200 mg of the crude extract with purity of 96.0 and 99.1%, respectively, as determined by LC. And the major compound (2) showed antithrombotic activity in vitro.
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Acknowledgment
We thank the Bureau of Science & Technology of Dalian City (2008J23JH042).
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Li, FY., Gou, ZP., Ma, XC. et al. Preparative Isolation and Purification of Two Phenylpropanoids from Daphne giraldii Nitsche by HSCCC. Chroma 71, 481–485 (2010). https://doi.org/10.1365/s10337-009-1457-5
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DOI: https://doi.org/10.1365/s10337-009-1457-5