4-氨基-3-戊烯-2-酮

硫代异氰酸苯酯

4,6-dimethyl-3-phenyl-1,3-diazabicyclo[2.2.0]hex-5-en-2-one

6-methyl-1-phenyl-4-propylpyrimidin-2-one

1-(4-anilinopent-3-en-2-ylidene)-3-propylurea