3,4-Dichloro-3'-fluorobenzophenone

2-Iodo-4'-methylbenzophenone

3-Chloro-4'-n-pentylbenzophenone

3,5-Dichloro-4'-n-pentylbenzophenone

3-Iodo-4'-n-propylbenzophenone

3-Bromo-2'-(thiomethyl)benzophenone

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

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

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

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

2-chloro-5-(3-methyl-2-thenoyl)pyridine