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(5E,9E)-(3aS,12aR)-3a,6,10-Trimethyl-1,2,3,3a,4,7,8,11,12,12a-decahydro-cyclopentacycloundecene-1-carboxylic acid methyl ester
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(6E,10E)-(4aR,13aS)-1-Diazo-4a,7,11-trimethyl-1,4a,5,8,9,12,13,13a-octahydro-benzocycloundecen-2-one
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(5E,9E)-(3aS,12aS)-1-Hydroxy-3a,6,10-trimethyl-1,2,3,3a,4,7,8,11,12,12a-decahydro-cyclopentacycloundecene-1-carboxylic acid methyl ester
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(6E,10E)-(4aS,13aR)-4a,7,11-Trimethyl-1,3,4,4a,5,8,9,12,13,13a-decahydro-benzocycloundecen-2-one
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