Spectroscopic and thermal characterization of some 5-acetyl-4-β-D-glycopyranosylaminopyrimidine derivatives and their acetylated sugar homologues

Abstract Six 5-acetyl-4-β- d -glycopyranosylaminopyrimidine derivatives and their acetylated sugar homologues have been characterized by elemental analysis, IR and 1 H-NMR spectroscopy. Thermal study of the compounds shows four types of process: (i) desolvation; (ii) solid-solid transition; (iii) melting; (iv) pyrolytic decomposition. Probable mechanisms for the onset of pyrolytic decomposition are proposed.