3-氨基-5,5-二甲基-2-环己烯-1-酮

丙炔酸乙酯

7,7-二甲基-2,5-二氧代-1,2,5,6,7,8-六氢-3-喹啉羧酸

2-(γ-N,N-dimethylamino-γ-N',N'-dimethylacetamidino-propylidene)-5,5-dimethylcyclohexane-1,3-dione

2-(dimethylaminomethylidene)-5,5-dimethylcyclohexane-1,3-dione