2-phenyl-6H-[1,3]thiazolo[4,5-d]pyridazine-7-thione

7-methylsulfanyl-2-phenyl-[1,3]thiazolo[4,5-d]pyridazine

ethyl 4-(acetyloxymethyl)-2-phenyl-1,3-thiazole-5-carboxylate

4-(2-phenyl-[1,3]thiazolo[4,5-d]pyridazin-7-yl)morpholine