1-butyl-3-[4-(6-oxo-3-phenylpyridazin-1-yl)butyl]urea

4-羧基甲苯磺丁脲甲基酯

二[2-(4-溴苯基)-2-氧代乙基]2,2'-氧基二乙酸酯

3-butyl-1H-quinazoline-2,4-dione

methyl 3-(butylcarbamoylsulfanyl)propanoate