Stereochemical differentiation of C-7 hydroxyltaxane isomers by electrospray ionization mass spectrometry

	Stereochemical differentiation of C-7 hydroxyltaxane isomers by electrospray ionization mass spectrometry
	Ge, Guang-Bo 1,2; Zhang, Rong 3; Ai, Chun-Zhi 1,2; He, Yu-Qi 4; Zhang, Yan-Yan 1,2; Liu, Xing-Bao 1; Yang, Li 4; Wang, Zheng-Tao 4; Yang, Ling 1
刊名	rapid communications in mass spectrometry
	2009-02-01
卷号	23 期号:3 页码:425-432
通讯作者	杨凌
产权排序	1;1
英文摘要	in this study, different electrospray ionization mass spectrometric (esi-ms) methods were utilized to analyze several pairs of taxane stereoisomers including paclitaxel and 7-epi-paclitaxel. both esi-ms and tandem mass spectrometry (ms/ms) techniques provided stereochemically dependent mass spectra in negative-ion mode, and all studied stereoisomers could be easily distinguished based on their characteristic ions or distinct fragmentation patterns. ms/ms experiments for several taxane analogues at various collision energies were performed to elucidate potential dissociation pathways. the gas-phase deprotonation potentials were also calculated to estimate the most thermodynamically favorable deprotonation site using dft b3lyp/6-31g(d). the results of the theoretical studies agreed well with the fragmentation patterns of paclitaxel and 7-epi-paclitaxel observed from ms/ms experiments. in addition, it was found that liquid chromatography (lc)/esi-ms was a useful and sensitive technique for assignment of c-7 taxane stereoisomers from realistic samples. copyright (c) 2009 john wiley & sons, ltd.
WOS标题词	science & technology ; life sciences & biomedicine ; physical sciences ; technology
类目[WOS]	biochemical research methods ; chemistry, analytical ; spectroscopy
研究领域[WOS]	biochemistry & molecular biology ; chemistry ; spectroscopy
关键词[WOS]	density-functional theory ; analyzer hybrid system ; human plasma ; molecular-structure ; triple quadrupole ; paclitaxel taxol ; dog plasma ; gas-phase ; metabolites ; quantification
收录类别	SCI
原文出处	true
语种	英语
WOS记录号	WOS:000262905800011
公开日期	2010-11-30
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/101519]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, Lab Pharmaceut Resource Discovery, Dalian 116023, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing, Peoples R China 3.Dalian Univ Technol, State Key Lab Fine Chem, Dalian, Peoples R China 4.Shanghai Univ Tradit Chinese Med, Inst Chinese Mat Med, Shanghai, Peoples R China
推荐引用方式 GB/T 7714	Ge, Guang-Bo,Zhang, Rong,Ai, Chun-Zhi,et al. Stereochemical differentiation of C-7 hydroxyltaxane isomers by electrospray ionization mass spectrometry[J]. rapid communications in mass spectrometry,2009,23(3):425-432.
APA	Ge, Guang-Bo.,Zhang, Rong.,Ai, Chun-Zhi.,He, Yu-Qi.,Zhang, Yan-Yan.,...&Yang, Ling.(2009).Stereochemical differentiation of C-7 hydroxyltaxane isomers by electrospray ionization mass spectrometry.rapid communications in mass spectrometry,23(3),425-432.
MLA	Ge, Guang-Bo,et al."Stereochemical differentiation of C-7 hydroxyltaxane isomers by electrospray ionization mass spectrometry".rapid communications in mass spectrometry 23.3(2009):425-432.