3,5-Difluoro-2'-ethylbenzophenone

4-Ethyl-4'-iodobenzophenone

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

3-Bromo-3'-fluorobenzophenone

3,5-Dichloro-4'-fluorobenzophenone

3,3',4-Trifluoro-4'-methylbenzophenone

4-Chloro-3'-fluoro-5'-methylbenzophenone

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

4-tert-Butyl-4'-fluoro-3'-methylbenzophenone

4-tert-Butyl-4'-isopropylbenzophenone

3,5-Dichloro-3'-methylbenzophenone