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6-[12-(acetyloxy)-10-[5-(acetyloxy)-4-(dimethylamino)-4,6-dimethyltetrahydro-2H-pyran-2-yl]-2-(but-2-en-2-yl)-11-hydroxy-12-methoxy-5-methyl-4,7-dioxo-7,12-dihydro-4H-naphtho[2,3-h]chromen-8-yl]-4-(di related products: