5,6'-Dimethyl-[2,2']bipyridinyl

Ethyl 6-chloro-2-oxohexanoate

Ethyl 1-naphthoylformate

Ethyl 2-phenylbenzoylformate

Ethyl 2-cyano-3-fluorobenzoylformate

Ethyl 2,3-dichlorobenzoylformate

Ethyl 3,5-dimethoxybenzoylformate

Ethyl 4-thioethylbenzoylformate

Ethyl 2-fluoro-4-methylbenzoylformate

Ethyl 2-methoxy-1-naphthoylformate

Ethyl 4-methyl-1-naphthoylformate