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题名: Structure analysis on complexes of xanthone glycosides and metal ions using Electrospray ionization tandem mass Spectrometry
作者: Sun, Y. G.;  Zhang, X.;  Wang, L.;  Xue, X. Y.;  Xiao, H. B.;  Liang, X. M.
通讯作者: 梁鑫淼
关键词: electrospray ionization ;  xanthone glycosides ;  metal complexes ;  coordination sites ;  MS/MS spectrum
刊名: POLISH JOURNAL OF CHEMISTRY
发表日期: 2007-10-01
卷: 81, 期:10, 页:1687-1700
收录类别: SCI
文章类型: Article
部门归属: 18
项目归属: 1803,1804
产权排名: 1;1
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Multidisciplinary
研究领域[WOS]: Chemistry
英文摘要: The structure and fragmentation mechanism of metal (Mn(II), Al(III) and Cu(II)) complexes of xanthone glycosides as well as metal coordination sites were investigated by electrospray ionization tandem mass spectrometry. Four Mn(II) complexes of xanthone glycoside with different stoichiometric ratios were observed from swertianin 7-O-rhamnosyl(l -> 2)xyloside, swertianin 7-O-xylosy](1 -> 2)xyloside and swertianolin, while only two complexes were formed for 3,7,8-trimethoxy-1-O-primeverosyloxanthone, 2,3,5-trimethoxy-1-O-primeverosyloxanthone and 2,3,4,5-tetramethoxy-1-O-primeverosyloxanthone, respectively. For xanthone glycoside-Cu(II) complexes, three complexes with different stoichiometric ratios were observed from swertianin 7-O-rhamnosyl(l -> 2)xyloside, swertianin 7-O-xylosyl(l -> 2) xyloside and swertianolin, but only one Al(III) complexes were formed for above three xanthone glycosides. Based on the analysis of metal complexes by tandem mass spectrometry, a fragmentation mechanism for 1:1 swertianin 7-O-rhamnosyl(l -> 2)xyloside-Mn(II) complex was proposed and the structures of four swertianin 7-O-rhamnosyl(1 -> 2)xyloside-Mn(II) complexes were interpreted. In addition, the hydroxyl groups in the oligosaccharide chains, the hydroxyl groups substituted at C-1 and C-8, and the carbonyl group in the C-ring of the aglycone, were proved to be the dominant coordination sites in the xanthone glycosidemetal complexes.
关键词[WOS]: COLLISIONALLY ACTIVATED DISSOCIATION ;  BINDING SELECTIVITIES ;  FLAVONOID GLYCOSIDES ;  TRAP ;  IDENTIFICATION ;  ANTIBIOTICS ;  CHELATION
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000250769800001
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/99535
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China

Recommended Citation:
Sun, Y. G.,Zhang, X.,Wang, L.,et al. Structure analysis on complexes of xanthone glycosides and metal ions using Electrospray ionization tandem mass Spectrometry[J]. POLISH JOURNAL OF CHEMISTRY,2007,81(10):1687-1700.
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