Synthesis of Pyridone Derivatives from 7‐Hydroxy‐7‐polyfluoroalkylhexahydroimidazo[1,2‐a]pyridin‐5‐ones

Abstract

The synthesis of 1‐(2‐aminoethyl)‐6‐alkyl‐4‐polyfluoroalkylpyridin‐2‐ones based on the acidic cleavage of 7‐hydroxy‐7‐polyfluoroalkylhexahydroimidazo[1,2‐a]pyridin‐5‐ones is reported. Depending on the reaction conditions, the pyridones can be obtained as bases, salts, acetamides, or the products of intramolecular cyclization, dihydroimidazopyridines. High tuberculostatic activity was observed for some of the synthesized compounds.