2,6-dimethyl-6-(trimethylsiloxy)-1-heptene-3,5-dione

3-羟基-3-甲基-2-丁酮

2,2-dimethyl-5-[1-methyl-1-(phenylseleno)ethyl]-3(2H)-furanone

3-hydroxy-3-methyl-2-butanone isobutyric ester

2,6-dimethyl-3-hydroxy-6-(trimethylsiloxy)-1-hepten-5-one