One-pot synthesis of substituted pyrrolo[3,4-<i>b</i>]pyridine-4,5-diones based on the reaction of <i>N</i>-(1-(4-hydroxy-6-methyl-2-oxo-2<i>H</i>-pyran-3-yl)-2-oxo-2-arylethyl)acetamide with amines
Beilstein journal of organic chemistry