Showing structure for (1's,3r,3'r,5r,5'r,6's,7'r)-5-(furan-3-yl)-3',6',7'-trimethyl-2,8'-dioxo-9'-oxaspiro[oxolane-3,2'-tricyclo[5.2.2.0¹,⁶]undecan]-5'-yl (2r)-2-methylbutanoate