(E)-3-(2-Hydroxy-phenyl)-acrylic acid ethyl ester

6-溴色烯-2-酮

5-羟基-4-甲基-2H-1-苯并吡喃-2-酮

ethyl (E)-β-(1-hydroxy-6-methyl-9H-carbazol-2-yl)acrylate

8-methyl-11H-pyrano[2,3-a]carbazol-2-one