<prompt> Nucleotides areHeterocyclic CompoundsN-GlycosidesPhosphorylated NucleosidesO-Glycosides  <response>: Purines Pyrimidines Are Heterocyclic Compounds.Nucleosides Are N-Glycosides.Nucleotides Are Phosphorylated Nucleosides .Ref: Harper;s Biochemistry; 30th edition; Chapter 32; Nucleotides 