Showing structure for (2r,3's,4'ar,5''s,6'r,7's,8'ar)-5''-(furan-3-yl)-7',8'a-dihydroxy-7'-methyl-1'-methylidene-2'',5'-dioxo-tetrahydrodispiro[oxirane-2,2'-naphthalene-6',3''-oxolan]-3'-yl acetate