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(2aα,4aα,5aR*,8α,8aα,8bα)-(+/-)-6-ethenyl-2a,3,4,4a,5,8,8a,8b-octahydro-8-hydroxy-2a-methyl-2H-cyclopropa<4a,5>naphtho<1,8-bc>furan-2-one
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(2aS,2a1R,5R,5aS,6S,8aR)-5-formyl-2a-methyl-2-oxo-2a,2a1,3,4,5,5a,6,8a-octahydro-2H-naphtho[1,8-bc]furan-6-yl acetate
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(2aα,5β,5aα,6aβ,7aβ,7bα,7cα)-(+/-)-5-(((tert-butyldimethylsilyl)oxy)methyl)-3,4,5,5a,6a,7a,7b,7c-octahydro-2a-methyl-2H-oxireno(2,3)naphtho(1,8-bc)furan-2,6-(2aH)-dione
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(2aα,4aα,5α,5aβ,7α,9bR*,9cα,10aα)-(+/-)-7-ethenyl-1,2,2a,4a,5,5a,6,7,8,9c,10,10a-dodecahydro-5-hydroxy-2a,7-dimethyl-3H-cyclopropa(4,4a)phenanthro(10,1-bc)furan-3-one