2-苯基-1,3-二四氢呋喃

4-氧代-4H-苯并吡喃-2-羧酸甲酯

N-methyl-4-oxo-4H-chromene-2-carboxamide

3-benzylidene-2-phenyl-2,3-dihydro-4H-chromen-4-one

2-methyl-1-phenyl-1,2-dihydrochromeno[2,3-c]pyrrole-3,9-dione