2-甲基-1-丁烯-3-酮

1-(3,5,5-三甲基-1,2,4-三四氢呋喃-3-基)乙酮

2,3,4,5-tetramethylhexa-2,4-diene

2-acetoxy-5,5-dicyclopropyl-2-methyl-Δ3-1,3,4-oxadiazoline

2-acetoxy-5-(1-methylethyl)-2,5-dimethyl-Δ3-1,3,4-oxadiazoline