ethyl 3-(dimethylamino)-2-isocyanoprop-2-enoate

3-(二甲基氨基)-2-异氰基-2-丙烯酸甲酯

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

3-(dimethylaminomethylidene)oxan-2-one

二甲基氨基甲酸乙酯