Electrospray ionization mass spectra of derivatives of 2-phenylthio-N-trifluoroacetylneuraminic acid
2015
Chizhov, A. O. | Podvalnyy, N. M. | Zinin, A. I. | Malysheva, N. N. | Kononov, L. O.
Regularities in fragmentation of adduct ions [M + NH₄]⁺ and [M + Na]⁺ of N-trifluoroacetyl neuraminic acid phenyl thioglycosides under collisionally-induced decay (CID) activation are studied. For [M + Na]⁺ ions, elimination of the C₈H₈O₂S fragment (along with thiophenol molecule) proceeds both in the presence or the absence of an acetyl group, whereas for the [M + NH₄]⁺ ion, elimination of thiophenol C6H6S is observed. Similar elimination of the C₈H₈O₂S fragment has been observed previously only for cationized molecules of phenylthioglycoside acetates of hexoses.
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