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

摘要

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.