tetramethyl 9aH-quinolizine-1,2,3,4-tetracarboxylate

tetramethyl 4H-quinolizine-1,2,3,4-tetracarboxylate

3-Methoxalyl-4-oxo-4H-chinolizin-1,2-dicarbonsaeure-dimethylester

4-hydroxy-3-(3-oxo-1,3-diphenylpropyl)chromen-2-one

5,6-dimethyl-2-pyridin-1-ium-1-yl-1H-benzimidazole,chloride