3-butyl-1,7-dimethylpurine-2,6-dione

2-butyl-1,1-dioxo-1,2-benzothiazol-3-one

2-butylsulfanyl-1H-benzimidazole

6-butoxy-3,4-dihydro-1H-quinolin-2-one

丁基对甲苯基砜