Showing structure for methyl (1r,4s,7s,9s,10s,12s,15s)-7-(furan-3-yl)-4-hydroxy-9-methyl-5,14-dioxo-6,13-dioxatetracyclo[10.2.2.0¹,¹⁰.0⁴,⁹]hexadecane-15-carboxylate