Showing structure for (9r,10r)-10-(acetyloxy)-8,8-dimethyl-2-oxo-9h,10h-pyrano[2,3-h]chromen-9-yl (2r,3r)-2-hydroxy-2-methyl-3-{[(2s,3r,4s,5s,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}butanoate