Showing structure for (1s,5r,6s,7r,8r,9r)-9-(acetyloxy)-8-methyl-4-methylidene-8-[(2s)-oxiran-2-yl]-3-oxo-7-(3-oxoprop-1-en-2-yl)-2-oxabicyclo[3.3.1]nonan-6-yl 2-hydroxy-2-methylpropanoate