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(1aR,1bS,2S,3R,4R,4aS,7aS,9R,10aR)-2-((tert-butyldimethylsilyl)oxy)-4,4a-dihydroxy-1,1,3,6,9-pentamethyl-1a,1b,2,3,4,4a,5,9,10,10a-decahydrocyclopropa[3,4]cyclohepta[1,2-d]inden-8(1H)-one
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(1S,1a'R,3'R,3a'R,5'R,6'R,7'R,7a'R,7b'R)-7'-((tert-butyldimethylsilyl)oxy)-3a',5'-dihydroxy-1',1',3,3',6'-pentamethyl-1',1a',2',3',3a',5',6',7',7a',7b'-decahydrospiro[cyclopentane-1,4'-cyclopropa[a]naphthalen]-2-en-5-one
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(1R,1a'R,3'R,3a'R,5'R,6'R,7'R,7a'R,7b'R)-7'-((tert-butyldimethylsilyl)oxy)-5'-hydroxy-1',1',3,3',6'-pentamethyl-3a'-((trimethylsilyl)oxy)-1',1a',2',3',3a',5',6',7',7a',7b'-decahydrospiro[cyclopentane-1,4'-cyclopropa[a]naphthalen]-2-en-5-one
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