Ethyl 4-cyano-2-oxobutyrate

Ethyl 3,4,5-trimethoxybenzoylformate

Ethyl 2,6-difluorobenzoylformate

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

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

cis-2-(2-methylbenzoyl)cyclopentane-1-carboxylic acid

cis-3-(3,5-Dimethylbenzoyl)cyclopentane-1-carboxylic acid

cis-3-[2-(3-methylphenyl)-2-oxoethyl]cyclopentane-1-carboxylic acid

cis-3-[2-(3-methoxyphenyl)-2-oxoethyl]cyclopentane-1-carboxylic acid

cis-3-[2-(3-iodophenyl)-2-oxoethyl]cyclopentane-1-carboxylic acid

cis-3-[2-oxo-2-(3-nitrophenyl)ethyl]cyclopentane-1-carboxylic acid