(8R,8aS)-8-(2-Methoxy-ethoxymethoxy)-6,7,8,8a-tetrahydro-1H-naphthalen-2-one

((1S,8R,8aS)-8-Hydroxy-2-oxo-1,2,6,7,8,8a-hexahydro-naphthalen-1-yl)-acetic acid

((1S,8R,8aS)-8-Hydroxy-2-methylene-1,2,6,7,8,8a-hexahydro-naphthalen-1-yl)-acetic acid methyl ester

methyl (1R*,8S*,8aR*)-8-hydroxy-2-oxo-1,2,6,7,8,8a-hexahydro-1-naphthalenemethylcarboxylate

((1R,8S,8aR)-2-Methylene-8-trimethylsilanyloxy-1,2,6,7,8,8a-hexahydro-naphthalen-1-yl)-acetic acid methyl ester