3,5-dichloro-2-(2,4-dioxopentan-3-yl)cyclohexa-2,5-diene-1,4-dione

2-chloro-6-(4-methylpent-3-en-1-yl)naphthalene-1,4-dione

2-chloro-7-(4-methylpent-3-enyl)naphthalene-1,4-dione

1,3,6,8-四羟基蒽-9,10-二酮

1,3-dichloro-2,5-dimethoxybenzene