4-Iodo-3',4',5'-trifluorobenzophenone

2-Chloro-3-(2-thiazolylcarbonyl)pyridine

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

Ethyl 6-(2-chloro-3-pyridyl)-6-oxohexanoate

4-(2-Chloro-3-pyridyl)-4-oxobutyronitrile

2-chloro-3-(6-chlorohexanoyl)pyridine

3-Benzoylthiophene

3-(3-carboethoxybenzoyl)thiophene

3-(2,3-Dimethylbenzoyl)thiophene

3-(2-Fluorobenzoyl)thiophene

3-(2,5-Dichlorobenzoyl)thiophene