5-(3-羟基丁酰基)-4-甲氧基-6-甲基吡喃-2-酮

5-acetyl-4-methoxy-6-methylpyran-2-one

5-hydroxy-4-methoxy-5,7-dimethyl-7,8-dihydro-2H,5H-pyrano[4,3-b]pyran-2-one

6-羟基-2-庚酮

8-乙基-2-甲基喹啉