The invention relates to a method of manufacture of dimiracetam (2,5-dioxohexahydro-1 H-pyrrolo[1,2-a]imidazole), characterized in that a 4-oxo-butanoic acid ester is condensed with glycinamide in a one-pot reaction with a controlled pH. The reaction may be performed in aqueous solution or in an anhydrous lower alcohol solution.
本发明涉及一种制备二甲基乙酰胺(2,5-二氧代己氢-1H-
吡咯[1,2-a]
咪唑)的方法,其特征在于将4-氧代
丁酸酯与甘
氨酰胺在控制pH的单锅反应中缩合。该反应可以在
水溶液或无
水低级醇溶液中进行。