5,8-dimethoxy-4-oxo-2,3-dihydro-1H-naphthalene-2-carboxylic acid

(+/-)-6-methoxy-(4arH,8acH)-4a,5,8,8a-tetrahydro-naphthoquinone-(1,4)

5,8-dimethoxy-2-(2-methyl-1,3-dithian-2-yl)-1,2,3,4-tetrahydronaphthalen-2-ol

(R)-6-acetyl-6-hydroxy-5,6,7,8-tetrahydronaphthalene-1,4-dione

Bicyclo[4.2.0]octa-1,3,5-triene-7,8-dione