7,8-Bis-benzyloxy-6-[1-hydroxy-4-(3-hydroxy-1,4,5,6,8-pentamethoxy-naphthalen-2-yl)-3-oxo-butyl]-1-oxo-1H-isochromene-3-carboxylic acid methyl ester

1,4-dihydroxy-5,6,8-trimethoxy-naphthalene-2,3-dicarboxylic acid dimethyl ester

2,3-bis-(tert-butyl-dimethyl-silanyloxymethyl)-1,4,5,6,8-pentamethoxy-naphthalene

7,8-Bis-benzyloxy-1-oxo-6-[3-(1,4,5,6,8-pentamethoxy-3-triethylsilanyloxy-naphthalen-2-ylmethyl)-4,5-dihydro-isoxazol-5-yl]-1H-isochromene-3-carboxylic acid methyl ester

[1,4,5,7,8-pentamethoxy-3-(2-nitro-ethyl)-naphthalen-2-yl]-methanol

1,4,5,6,8-pentamethoxy-naphthalene-2,3-dicarboxylic acid dimethyl ester

7,8-dibenzyloxy-6-(1-hydroxy-ethyl)-1-oxo-1H-isochromene-3-carboxylic acid methyl ester