5,7-二羟基-2,6-二甲基-4H-苯并吡喃-4-酮

5,7-dihydroxy-2,8-dimethylchromone

(1-benzoylcyclohexyl) acetate

2,5-二乙酰基噻吩

[1,3]二氧杂环戊并[4,5-g]苯并吡喃-6-酮