Showing structure for methyl (1's,2'r,3r,5'r,7'r,8'r,11'r)-5',7',11'-trihydroxy-2'-methyl-4,10'-dioxo-9'-oxaspiro[oxetane-3,6'-tricyclo[6.3.1.0¹,⁵]dodecane]-7'-carboxylate