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(3R,4S,5R,6R,7R,9R,11R,12S,13R,14R)-4-{[(2R,4R,5S,6S)-4,5-dihydroxy-4,6-dimethyltetrahydro-2H-pyran-2-yl]oxy}-14-ethyl-6,7,12-trihydroxy-3,5,7,9,11,13-hexamethyloxacyclotetradecane-2,10-dione (non-pre related products: