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

5-(1,3-Dioxolan-2-yl)-2-thienyl heptyl ketone

5-(1,3-Dioxolan-2-yl)-2-thienyl octyl ketone

2-Chloroethyl 5-(1,3-dioxolan-2-yl)-2-thienyl ketone