Acta Chimica Sinica ›› 2010, Vol. 68 ›› Issue (17): 1735-1740. Previous Articles     Next Articles

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  1. (1中国科学院长春应用化学研究所 长春质谱中心 长春 130022)
    (2吉林大学化学学院 长春130021)
    (3中国科学院研究生院 北京100039)
  • 收稿日期:2009-10-24 修回日期:2010-01-18 出版日期:2010-09-14 发布日期:2010-04-16
  • 通讯作者: 刘志强
  • 基金资助:

    国家自然科学基金(No. 30672600,30772721)资助

A Fragmentation Study of Kaempferide 3,7-Di-O-glycosides by Electrospray Ionization Tandem Mass Spectrometry

Lu Lin1,3 Shi Ying1,3 Song Fengrui1 Jin Yongri2 Liu Zhiqiang*,1 Liu Shuying1   

  1. (1 Changchun Center of Mass Spectrometry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022)
    (2 Jilin University, College of Chemistry, Changchun 130023)
    (3 Graduate School of the Chinese Academy of Sciences, Beijing 100039)
  • Received:2009-10-24 Revised:2010-01-18 Online:2010-09-14 Published:2010-04-16

A serious of new methoxylated flavonol including kaempferide mono-O-glycosides and kaempferide 3,7-di-O-glycosides from Actinidia kolomikta were studied by using electrospray ionization tandem mass spectrometry. The results indicated kaempferide mono-O and di-O have substantial difference in their fragmentation behaviors. Kaempferide mono-O-glycosides yielded abundant aglycone ion ([Y0]) by loss of glycan residues, however, 3,7-di-O-glycosides mostly generated [ ] and [ ] ions through removal of glycan residues substituted in C-7 and C-7 respectively, but little aglycone ion from loss of all substituted glycans. Furthermore, the glycosylation site could be easily determined because the [ ] and [ ] ions shown different fragmentation pathways.

Key words: flavonol, tandem mass spectrometry, di-O-glycosides