3,4-Dichloro-5-(2,2,2-trifluoroethoxy)pyridazine
6-(2,6-Dichlorophenyl)-8-methyl-2-(methylthio)pyrimido[4,5-d]pyridazin-5(6H)-one
Benzyl 3-oxo-2,3,7,8-tetrahydropyrido[4,3-c]pyridazine-6(5H)-carboxylate
3-Bromo-5-(tosylmethyl)pyridine
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