4-Bromo-2'-(thiomethyl)benzophenone

2-Chloro-5-(3-ethoxycarbonylbenzoyl)pyridine

Ethyl 6-(6-chloropyridin-3-yl)-6-oxohexanoate

Ethyl 5-(6-chloropyridin-3-yl)-5-oxovalerate

5-(2-Chloronicotinoyl)-2-furoic acid

Ethyl 5-(3-oxocyclohexyl)-2-thiophenecarboxylate

3-(2-cyanobenzoyl)thiophene

3-(3-Fluorobenzoyl)thiophene

3-(4-Chloro-3-fluorobenzoyl)thiophene

3-(3,5-Dichlorobenzoyl)thiophene

Ethyl 5-oxo-5-(3-thienyl)valerate