2,4-dicarbethoxyfuran

7-氯-2H-嘧啶并[1,2-b]哒嗪-2-酮

7-morpholin-4-ylpyrimido[1,2-b]pyridazin-2-one

2-methylsulfanyl-3-phenylpyrimidin-4-one

3-(2-fluorophenyl)-2-methylsulfanylpyrimidin-4-one