(+/-)-2-acetyl-6-(2-methoxycarbonylbenzoyl)-5,8-dimethoxy-1,2,3,4-tetrahydro-2ol
(+/-)-2-acetyl-6-(2-carboxybenzoyl)-5,8-dimethoxy-1,2,3,4-tetrahydro-2-naphthol
(R)-2-acetyl-2-hydroxy-5,8-dimethoxy-1,2,3,4-tetrahydronaphthalene
5,8-dimethoxy-2-tetralone
(+/-)-2-acetyl-2-hydroxy-1,2,3,4-tetrahydro-5,8-dimethoxynaphthalene