5,6-dimethyl-2-methylsulfanyl-3H-thieno[2,3-d]pyrimidin-4-one

4-(α-Methoxybenzyl)pyridazin

phenyl(pyridazin-4-yl)methanone

ethyl 2-methylsulfanyl-2-sulfanylideneacetate

1-(甲基氨基)乙硫酮