Ethyl 5-cyano-2-oxovalerate

7-氯-2-氧代庚酸乙酯, Ethyl 7-Chloro-2-oxoheptanoate

Ethyl 2-methoxybenzoylformate

Ethyl 4-bromo-3-fluorobenzoylformate

Ethyl 3-chloro-6-methoxybenzoylformate

Ethyl 2,4-dichlorobenzoylformate

Ethyl 2,4-dimethylbenzoylformate

Ethyl 3-(1,3-dioxan-2-yl)-4-methoxybenzoylformate

Ethyl 4-fluoro-1-naphthoylformate

Ethyl 2-iso-propylbenzoylformate

Ethyl 9-phenanthroylformate

Ethyl 5-methylthiophene-2-glyoxylate

cis-1,2-Cyclopentanedicarboxylic anhydride

环戊烷-1,2-二甲酸酐

cis-3-(3-methylbenzoyl)cyclopentane-1-carboxylic acid

cis-3-(2-ethylbenzoyl)cyclopentane-1-carboxylic acid