2,7-dimethylpyrano[3,2-c]pyran-4,5-dione

4-methoxy-6-[2-(4-methoxyphenyl)ethyl]pyran-2-one

6-[2-(1,3-benzodioxol-5-yl)ethenyl]-4-methoxypyran-2-one

(2-methyl-6-oxopyran-4-yl) 4-methylbenzenesulfonate

4-羟基-6-苯乙基吡喃-2-酮