4-hydroxy-3-(2-methylprop-1-enyl)naphthalene-1,2-dione

2-hydroxy-3-(2-methyl-2-propenyl)-1,4-naphthoquinone

2-羟基-1,4-萘醌

异丁烯

2,3-dihydro-2,2-dimethylnaphtho[2,3-b]furan-4,9-dione