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(2aS,2a1R,3R,4aR,5S,8R,8aS,9R)-2a1-methyl-9-(prop-1-en-2-yl)-2a,3,4a-tris((trimethylsilyl)oxy)octahydro-1,7-dioxa-5,8-methanocyclopenta[cd]azulene-2,6-dione
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(2aS,3R,4aR,5S,6R,7R,7aS,7bR)-7-Hydroxy-6-isopropenyl-7b-methyl-2-oxo-2a,3,4a-tris-trimethylsilanyloxy-decahydro-indeno[7,1-bc]furan-5-carboxylic acid methyl ester
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(2aS,3R,4aR,5S,6R,7R,7aS,7bR)-7-Acetoxy-6-isopropenyl-7b-methyl-2-oxo-2a,3,4a-tris-trimethylsilanyloxy-decahydro-indeno[7,1-bc]furan-5-carboxylic acid methyl ester
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(2S,2aR,2a1R,4aR,5S,8R,8aS,9R)-2,2a,4a-trihydroxy-2a1-methyl-9-(prop-1-en-2-yl)-2a,2a1,4a,5,8,8a-hexahydro-1,7-dioxa-5,8-methanocyclopenta[cd]azulen-6(2H)-one
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(2aS,2a1R,3R,4aR,5S,8R,8aS,9R)-4a-hydroxy-2a1-methyl-9-(prop-1-en-2-yl)-2a,3-bis((trimethylsilyl)oxy)octahydro-1,7-dioxa-5,8-methanocyclopenta[cd]azulene-2,6-dione