4-hydroxy-2,4-dimethyl-2,5-cyclohexadien-1-one

3,6,8-trimethyl-2,4-dihydro-1,3-benzoxazine

6-bromo-2,4-dimethyl-4-(phenylamino)cyclohexa-1,4-dienone

2,4-dimethylphenyl benzoylglycinate