Showing structure for (1r,2r,4r,6s,7s,10r,11r)-6-(furan-3-yl)-17-hydroxy-1,7,11,15,15-pentamethyl-3-oxapentacyclo[8.8.0.0²,⁴.0²,⁷.0¹¹,¹⁶]octadeca-12,16-diene-14,18-dione