2-(4-fluorophenyl)cyclohexa-2,5-diene-1,4-dione

8,8-dimethyl-6,7-dihydro-5H-anthracene-1,4-dione

4-amino-4-hydroxycyclohexa-2,5-dien-1-one

6-chloro-5,8-dihydronaphthalene-1,4-diol

3-Bromo-5,6-dimethyl-2-pyridinamine