Synthesis of New Nitrogen-Containing Derivatives of Fumaropimaric Acid

Methods have been developed for the synthesis of a series of nitrogen-containing derivatives of fumaropimaric acid, in particular triamides, amido amidines, and amido diesters. New functionalized derivatives at the 11- and 12-positions (diol, bis-methanesulfonate, bis-p-toluenesulfonate, diazide, and bis-triazoles) have been synthesized from the 1-(piperidin-1-ylcarbonyl) derivative.