四甲基碘化铵

4-(二甲基氨基)-2-氧代丁-3-烯酸乙酯

3-(二甲基氨基)-2-(2-噻吩甲酰基)丙烯腈

2-(dimethylaminomethylidene)-1H-indol-3-one

(5E)-5-(dimethylaminomethylidene)-3-oxo-6,7-dihydro-2H-cyclopenta[c]pyridine-4-carbonitrile