2-乙酰氧基丙酸丁酯

1,4-联苯基-1-丁酮

N-(6-chloro-3,4-dihydro-2H-chromen-3-yl)acetamide

2-acetoxymethyl-tetrahydro-pyran

6-acetyl-3,5-dibromo-6-hydroxycyclohexa-2,4-diene-1-carboxylic acid