Showing structure for (1r,2s,4ar,5r,6s,7r,8r,8ar)-2,7-bis(acetyloxy)-5-[2-(furan-3-yl)ethyl]-8-hydroxy-5,6-dimethyl-hexahydro-2h-spiro[naphthalene-1,2'-oxiran]-8a-ylmethyl acetate