2-(trifluoromethylthio)-5,5-dimethyl-1,3-cyclohexanedione

2,5,5-trimethylcyclohexane-1,3-dione

3,3-dimethylpentanedinitrile

2-amino-5-cyano-4,4-dimethyl-6-oxo-3,5-dihydropyridine-3-carboxamide

2-溴-5,5-二甲基-1,3-环己二酮