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(1S,2S,6S,7R,9S,12R,13R,14S)-9-Ethenyl-12,14-dihydroxy-11-methoxy-7,9,13,17,17-pentamethyl-3,5,8-trioxatetracyclo[11.4.0.02,6.07,12]heptadec-10-en-4-one


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