(3S,3aR,5S,8R,8aR)-3a-Benzyloxymethyl-3-(tert-butyl-dimethyl-silanyloxy)-5-[2-(tert-butyl-dimethyl-silanyloxy)-ethyl]-8-methyl-1,2,3,3a,4,5,8,8a-octahydro-azulene

1H-3a,7-Methanoazulene-6,9-diol,3-[[(1,1-dimethylethyl)dimethylsilyl]oxy]octahydro-8-methyl-5-(2-propenyl)-, 9-benzoate, (3a,3ab,5b,6b,7b,8b,8aa,9R*)-(±)-

(3R,3aS,6S,7R,8R,8aS,9R)-3-(tert-Butyl-dimethyl-silanyloxy)-8-methyl-2,3,6,7,8,8a-hexahydro-1H-3a,7-methano-azulene-6,9-diol