3-methyl-4-(2-methyl-3-oxobutyl)sulfanylbutan-2-one

2,6-dimethylhepta-1,5-dien-3-ol

4-(4-甲氧基苯基)-3-甲基丁烷-2-酮

2-acetamido-2-(2-methyl-3-oxobutyl)propanedioic acid

2-acetamido-4-methyl-5-oxohexanoic acid