1,2,3,4 di o isopropylidene beta levo arabinopyranos 5 yl 2 2 phenyl 5 glycosyl 1,3,4 oxadiazole 2 Acylation 2 Aromatic compounds 2 Butanes 2 Derivatives 2 Gas-phase conversion 2 Gas-phase reaction 2 Heterocycles 2 Ion-molecule reaction 2 Ionization 2 Mass Spectrometry 2 Mass spectrometry 2 Oxadiazoles 2 Rearrangement 2 Spectrum analysis 2 Tetrazoles 2 acetylation 2 article 2 chemical structure 2 controlled study 2 dissociation 2 gas 2 ionization 2 mass spectrometer 2 nitrogen 2 oxadiazole derivative 2 plasma 2 priority journal 2 pyrone derivative 2