11-(allyloxy)-10-((2S,4S,5S,6R)-4-((tert-butyldimethylsilyl)oxy)-5-hydroxy-6-methyltetrahydro-2H-pyran-2-yl)-5-(((tert-butyldimethylsilyl)oxy)methyl)-2-((2R,3R)-2,3-dimethyloxiran-2-yl)-4H-naphtho[2,3-h]chromene-4,7,12-trione

((4S,5S)-2,2,4,5-tetramethyl-1,3-dioxolan-4-yl)methanol