2-2'-carbobenzyloxy-6'-methoxy-4'-methylphenyl-3,5-dichloro-1,4-benzoquinone

2-2'-carbobenzyloxy-6'-methoxy-4'-methylphenyl-3,4a-dichloro-5,8,8a-trihydro-5-trimethylsilyloxy-1,4-naphthoquinone

5-acetoxy-2-2'-carbobenzyloxy-6'-methoxy-4'-methylphenyl-3-chloro-1,4-naphthoquinone

2-(3-hydroxymethoxy-1,4-dioxo-1,4-dihydro-2-naphthyl)-3-methyl-5-methoxybenzoic acid

4,8-dihydroxynaphthalene-1,2-dione