Abstract
This work provides an overview of the role of carbohydrates as precursors for the synthesis of heterocycles. It is limited to heterocycles where one or more of their carbon atoms are from carbohydrate reactants. A part of the sugar may remain linked to the heterocycles thus providing nucleoside analogues. The following heterocycles were included: furans, pyrrols, thiophenes, pyrazoles, imidazoles, oxazoline, dioxolanes, thiazolidines, triazoles, oxadiazoles, oxadiazolines, thiadiazoles, thiadiazolines, pyridines, pyridazines, pyrimidines, oxazines, pyrazines, quinoxalines, triazines, seven-membered rings and their fused ring systems.