2-chloro-3-(5-ethoxycarbonyl-2-furoyl)pyridine

2-(4-nitrobenzoyl)thiophene

3-(4-cyanobenzoyl)thiophene

3-(2-cyanobenzoyl)thiophene

3-(3-Bromobenzoyl)thiophene

3-(4-Chlorobenzoyl)thiophene

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

3-(3-Trifluoromethylbenzoyl)thiophene

3-(2,4-Difluorobenzoyl)thiophene

Cyclohexyl 3-thienyl ketone

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