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Abstract
Rutinose and five R-β-rutinosides were obtained by means of rutin-degrading reaction in water or aqueous alcohol (ROH, R = methyl, ethyl, propyl, isopropyl, and benzyl) with rutin-degrading enzyme as catalyst and rutin as starting material in 84–94% yields, of which methyl-β-rutinoside, propyl-β-rutinoside, isopropyl-β-rutinoside, and benzyl-β-rutinoside are firstly reported in this paper. Based on spectral analysis, the structures of all products were elucidated.
Acknowledgements
We thank the National Science Foundation of China (30571402) for financial support to this research and Prof. Y. Chai in Northwest A&F University for friendly providing the plant material.