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9,8,18,18-Tetraethoxy-2,3,4,5,6,7,10,11,12,13,14,15,16,18-tetradecahydro-1,5:3,7:10,14:12,16-tetramethano-1H,9H-cyclononacyclonona<2,3>pyrano<5,4-d>pyran
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(1R,5S,12bS,15S)-5,12b-dimethyl-1,2,3,3a,4,5,6,7,8,9,10,11,12,12b-tetradecahydro-1,5,4-(epipropane[1,1,3]triyl)-6,10:8,12-dimethanocyclonona[e]indene