3-ethylquinazolin-4-one

(E)-4-(2-(二甲基氨基)乙烯基)烟腈

5-(dimethylaminomethylidene)-1,3-diphenyl-1,3-diazinane-2,4,6-trione

2-氨基-6-氯-3,5-二氰基吡啶

(二甲基氨亚甲基)丙二腈