5-methyl-3-phenyl-1,3,4-oxadiazol-2-one

1-乙酰基-2-苯基肼

2,2,4,4-tetramethylcyclohexane-1,3,5-trione

5-isopropyl-3,4,4-trimethyl-cyclopent-2-enone

乙烯酮