8-乙酰基-7-羟基-4-甲基-2H-1-苯并吡喃-2-酮

4-甲基-2-氧代-2H-色烯-7-基 氯乙酸酯

dihydrofuro[2,3-h]coumarin-9-one

2H-1-Benzopyran-2-one, 8-benzoyl-7-hydroxy-

8-Benzoyl-7-hydroxy-4-methylcoumarin