2-oxo-4-(2-phenylethenyl)chromene-3-carbonitrile

4-[2-(4-methoxyphenyl)ethenyl]-2-oxochromene-3-carbonitrile

3-氨基-4H-噻吩并[3,4-c]色烯-4-酮

4-甲基香豆素

4-(but-3-en-1-yl)-2H-chromen-2-one