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