3-Bromo-3',4'-(ethylenedioxy)benzophenone

4-Bromo-3'-fluoro-5'-methylbenzophenone

4'-Fluoro-3-iodo-3'-methylbenzophenone

3-Iodo-4'-isopropylbenzophenone

3,4-Dichloro-2'-methylbenzophenone

2-Chloro-4'-methylbenzophenone

2-Iodo-4'-n-pentylbenzophenone

3,4-Difluoro-4'-n-pentylbenzophenone

4-Chloro-2'-(thiomethyl)benzophenone

2-Bromo-4'-(methylthio)benzophenone

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