1-methylphenoxazin-3-one

5,8-二甲基呋喃并[2,3-h]苯并吡喃-2-酮

10-hydroxy-8-methyl-3-oxo-3-phenyl-2,4-dihydro-1H-phosphinino[3,4-c]chromen-5-one

5-hydroxy-2-(4-methoxy-phenyl)-7-methyl-chromen-4-one

7-hydroxy-2-(4-methoxyphenyl)-5-methylchromen-4-one