3,4-Difluoro-4'-ethoxybenzophenone

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

4-Bromo-3'-fluorobenzophenone

4-tert-Butyl-3'-fluorobenzophenone

3,4',5-Trifluorobenzophenone

2-Chloro-3'-fluoro-4'-methylbenzophenone

3'-Fluoro-4-iodo-4'-methoxybenzophenone

3'-Fluoro-3-iodo-5'-methylbenzophenone

3'-Fluoro-2-iodo-5'-methylbenzophenone

3,4-Dichloro-3'-fluoro-5'-methylbenzophenone

3,5-Dichloro-4'-fluoro-3'-methylbenzophenone