(3S,3aR,5R,7R,8S,8aR,9S)-5-allyl-3-((tert-butyldimethylsilyl)oxy)-8-methyl-6-oxooctahydro-1H-3a,7-methanoazulen-9-yl benzoate

(3S,3aR,5S,6S,7S,8S,8aR,9S)-3-((tert-butyldimethylsilyl)oxy)-6-hydroxy-5-(2-hydroxyethyl)-8-methyloctahydro-1H-3a,7-methanoazulen-9-yl benzoate

(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

(3S,3aR,5S,6S,7S,8S,8aR,9S)-3-((tert-butyldimethylsilyl)oxy)-5-(2-((tert-butyldimethylsilyl)oxy)ethyl)-6-hydroxy-8-methyloctahydro-1H-3a,7-methanoazulen-9-yl benzoate

(3S,3aR,5R,6R,7S,8S,8aR,9S)-5-allyl-3-((tert-butyldimethylsilyl)oxy)-6-hydroxy-8-methyloctahydro-1H-3a,7-methanoazulen-9-yl benzoate