1-((2-acetoxyethyl)amino)pyrido[3,4-d]pyridazin-4-yl acetate

3,4-吡啶二酰亚胺

吡啶-3,4-二羧酸酐

3,4-吡啶二羧酸

2-(2-hydroxyethyl)pyrrolo[3,4-c]pyridine-1,3-dione