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(1S,2S,5S)-2-[(3aR,5S,6S,6aR)-5-((R)-2,2-Dimethyl-[1,3]dioxolan-4-yl)-2,2-dimethyl-6-vinyl-tetrahydro-furo[2,3-d][1,3]dioxol-6-yl]-5-vinyl-cyclohexanol
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(1S,3a'R,5S,5'S,6R,6a'R)-2',2'-dimethyl-5'-(2-methyl-1,3-dioxolan-4-yl)-7-(prop-1-enyl)dihydro-3a'H-3-oxaspiro[bicyclo[3.2.0]heptane-6,6'-furo[2,3-d][1,3]dioxole]
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