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  • methyl (1S,2E,4E,6S,7R,8Z,13R,16R,17S,20S,21R,22R,23Z)-7,21-dihydroxy-6,13,16,20,24-pentamethyl-15-oxo-14-oxatricyclo[14.8.0.017,22]tetracosa-2,4,8,23-tetraene-8-carboxylate

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