Showing structure for (2r,4'as,5'r,5''r,6'r,8's,8'ar)-8'-(acetyloxy)-5''-(furan-3-yl)-6'-methyl-2''-oxo-hexahydro-2'h-dispiro[oxirane-2,1'-naphthalene-5',3''-oxolan]-8'a-ylmethyl acetate