3,5'-Dimethyl-[2,2']bipyridinyl

Ethyl 5-cyano-2-oxovalerate

Ethyl 5-acenaphthoylformate

Ethyl 2-phenylbenzoylformate

Ethyl 4-chloro-2-methylbenzoylformate

Ethyl 2,3-dimethylbenzoylformate

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

Ethyl 3-fluoro-2-methylbenzoylformate

Ethyl 5-methylthiophene-2-glyoxylate

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

cis-3-(4-fluorobenzoyl)cyclopentane-1-carboxylic acid