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methyl 7-(acetyloxy)-5,16,17,19,21,23,24-heptahydroxy-4,8,12,16,18,22,24,26-octamethyl-11,27-dioxo-11,16,17,18,19,20,21,22,23,24-decahydro-10H-6,9-methano[1,3]dioxino[4,5,6-uv][4]benzazacyclotricosine related products: