Showing structure for (2r,2''s,4'ar,5's,5''s,6's,7'r,8'ar)-2''-(acetyloxy)-5''-(furan-3-yl)-7'-hydroxy-6'-methyl-8'-oxo-hexahydrodispiro[oxirane-2,1'-naphthalene-5',3''-oxolan]-8'a-ylmethyl acetate