Synthesis of 5-imino- and 5-oxothiazolo[3,2-a]pyridines (microreview)

This microreview is devoted to the recent developments in the synthesis of 5-imino- and 5-oxothiazolo-[3,2-a]pyridines. General synthetic strategy toward fused thiazolopyridine ring system utilizing azahetaryl precursors is discussed.