p. 2033 - 2034
(1998)(1R,4S,4aR,6R,8R,8aS)-8-(tert-Butyl-dimethyl-silanyloxy)-6-hydroxy-5-oxo-1,4,4a,5,6,7,8,8a-octahydro-1,4-methano-naphthalene-6-carboxylic acid methyl ester
(1R,4S,4aR,8R,8aS)-8-(tert-Butyl-dimethyl-silanyloxy)-5-hydroxy-1,4,4a,7,8,8a-hexahydro-1,4-methano-naphthalene-6-carboxylic acid methyl ester
(-)-(1S,4R,4aS,5R,8aR)-5-tert-Butyldimethylsilyloxy-1,4,4a,6,7,8a-hexahydro-endo-1,4-methanonaphthalen-8(5H)-one
(1R,4S,4aR,6R,8R,8aS)-6-Acetoxy-8-(tert-butyl-dimethyl-silanyloxy)-5-oxo-1,4,4a,5,6,7,8,8a-octahydro-1,4-methano-naphthalene-6-carboxylic acid methyl ester