Showing structure for 10-hydroxy-15-[2-hydroxy-5-(2-methylprop-1-en-1-yl)oxolan-3-yl]-2,7,7,11,16-pentamethyl-6-oxatetracyclo[9.7.0.0²,⁸.0¹²,¹⁶]octadec-12-en-5-one