2,2-二氟-1,3-环己烷二酮

3,3-dimethyl-1,5-dioxaspiro[5.5]undecan-10-one

6,7-二氢-2-甲基苯并[d]噁唑-4(5h)-酮

9-(4-nitrophenyl)-2,3,4,5,6,7,9,10-octahydroacridine-1,8-dione

2-丁基-1,3-环己烷二酮