3-(dimethylaminomethylidene)-1-methylpiperidine-2,6-dione

3-异丙基吡唑

1,1,3,3-四甲基脲

2-(dimethylaminomethylidene)cyclohexan-1-one

3 - （二甲氨基）- 1 -苯基 -2-丙烯-1-酮