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

5-(2-Chloro-3-pyridyl)-5-oxovaleronitrile

7-(2-Chloro-3-pyridyl)-7-oxoheptanenitrile

2-chloro-3-(7-chloroheptanoyl)pyridine

2-bromo-5-(4-nitrobenzoyl)thiophene

2-chloro-5-(4-nitrobenzoyl)thiophene

3-(2-cyanobenzoyl)thiophene

3-(2,6-Dimethylbenzoyl)thiophene

3-(3-Chlorobenzoyl)thiophene

3-(3-Chloro-5-fluorobenzoyl)thiophene

Cyclopropyl 3-thienyl ketone

Ethyl 7-oxo-7-(3-thienyl)heptanoate

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

Ethyl 5-(1,3-Dioxolan-2-yl)-2-thiophenecarboxylate

5-(1,3-dioxolan-2-yl)-2-thienyl 4-oxopentyl ketone