5-methyl-2,5,6,7-tetrahydro-pyrrolo[3,4-c]pyridin-4-one 、
N,N-二甲基甲酰胺 、
三氯氧磷 以to give 250 mg (33%) of 5-methyl-4-oxo-4,5,6,7-tetrahydro-2H-pyrrolo[3,4-c]pyridine-1-carbaldehyde的产率得到5-methyl-4-oxo-4,5,6,7-tetrahydro-2H-pyrrolo[3,4-c]pyridine-1-carbaldehyde