(6R,8R)-3-Bromo-4,4-dimethoxy-6,8-bis-methoxymethoxy-6-(2-methyl-[1,3]dioxolan-2-yl)-1,4,5,6,7,8-hexahydro-naphthalen-1-ol

1-(1,4-dimethoxy-3-naphthylcarbonyl)-2-methoxycarbonyl-4-acetyl-4-hydroxy-cyclohexane

1-(1,4-dimethoxy-3-naphthylmethyl)-2-benzyloxycarbonyl-4-(1-hydroxyethyl)-4-hydroxy-cyclohexane

1,2,3,4,4a,5,12,12a-octahydro-2-acetyl-2-hydroxy-6,11-dimethoxy-12-oxo-naphthacene