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(E)-(1R,2R,3S,6R,10R,11S,12S,14S,15S)-3,7,7,10,14-Pentamethyl-16,17-dioxa-tricyclo[10.3.1.13,6]heptadec-8-ene-1,2,11,15-tetraol
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(E)-3-Methyl-pent-2-enoic acid (E)-(1S,2R,3S,6R,10R,11S,12S,14S,15S)-1,2,11-trihydroxy-3,7,7,10,14-pentamethyl-16,17-dioxa-tricyclo[10.3.1.13,6]heptadec-8-en-15-yl ester
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