2-Bromo-3'-fluoro-4'-methoxybenzophenone

4-tert-Butyl-4'-n-propylbenzophenone

2-Bromo-2'-(thiomethyl)benzophenone

3,4-Difluoro-2'-(thiomethyl)benzophenone

4-tert-Butyl-4'-(thiomethyl)benzophenone

4-Bromo-3',4',5'-trifluorobenzophenone

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

2-chloro-5-picolinoylpyridine

2-chloro-5-(2-thenoyl)pyridine

Ethyl 7-(2-chloro-3-pyridyl)-7-oxoheptanoate

ethyl 5-thenoyl-2-thiophene carboxylate