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Eur. J. Mass Spectrom. 7, 249 - 258 (2001)

Studies of unsaturated C-aryl glycosides by fast-atom bombardment mass spectrometry

Christophe Moineau and Denis Sinou*
Laboratoire de Synthèse Asymétrique, UMR 5622, CPE Lyon, Université Claude Bernard Lyon 1, 43 boulevard du 11 novembre 1918, 69622 Villeurbanne cedex, France
Michel Becchi and Marie JoČlle Bobenrieth
SCA-CNRS, BP 22, 69390 Vernaison, France

ABSTRACT:
Fast-atom bombardment (FAB) spectra, FAB mass-analyzed ion kinetic energy (FAB MIKE) spectra and FAB MIKE spectra with collision-activated dissociation (FAB CAD-MIKE) were obtained for some unsaturated anomeric C-aryl glycosides. Although the FAB MIKE and FAB CAD-MIKE spectra of the [M + H]+ ion showed no differences, differentiation of the regioisomers and anomers was possible by analyzing the MIKE and CAD-MIKE spectra of the [M + Li]+ or [M + Na]+ ions.

Keywords: unsaturated carbohydrate, C-aryl glycoside, anomers, tandem mass spectrometry, fast-atom bombardment

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