3-chloro-6-(2-furyl)pyridazine-4-carbonitrile

ethyl 6-(2-furyl)-3-oxo-2,3-dihydropyridazine-4-carboxylate

ethyl 6-(2-furyl)-3-oxo-2,3,4,5-tetrahydropyridazine-4-carboxylate

6-(2-furyl)-3-oxo-2,3-dihydropyridazine-4-carboxamide

2-溴-1-(2-呋喃)-1-乙酮