6-methoxy-4,5,8,9-tetrakis(phenylmethoxy)naphtho<2,3-c>furan-1,3-dione
3-(diethoxymethyl)-1-methoxy-9-(methoxymethoxy)-8H-cyclopent
dimethyl 1,4-dihydroxy-6-methoxy-5,8-bis(phenylmethoxy)-2,3-naphthalenedicarboxylate
6-<(tert-butyldimethylsilyl)oxy>-3-(diethoxymethyl)-2,6,7,8-tetrahydro-9-(methoxymethoxy)-1H-cyclopent
3-(diethoxymethyl)-2,6,7,8-tetrahydro-6-hydroxy-9-(methoxymethoxy)-1H-cyclopent