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(3aS,3bS,5aS,6R,7R,8aS,8bR,10aS)-6-Ethynyl-6-hydroxy-3a,5a,7-trimethyl-tetradecahydro-dicyclopenta[a,f]naphthalen-2-one
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(3aS,3bS,5aS,6R,7S,8aS,8bR,10aS)-6-Ethynyl-6-hydroxy-3a,5a,7-trimethyl-tetradecahydro-dicyclopenta[a,f]naphthalen-2-one
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(1R,2R,3aS,3bR,5aS,7R,8aS,8bS,10aS)-1-Ethynyl-2,8a,10a-trimethyl-hexadecahydro-dicyclopenta[a,f]naphthalene-1,7-diol
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(1R,2S,3aS,3bR,5aS,7R,8aS,8bS,10aS)-1-Ethynyl-2,8a,10a-trimethyl-hexadecahydro-dicyclopenta[a,f]naphthalene-1,7-diol