Showing structure for (1s,2r,4s,7r,8s,12r,19r)-7-(5-hydroxy-2-oxo-5h-furan-3-yl)-1,8,12,16,16-pentamethyl-5,15-dioxo-3,6-dioxapentacyclo[9.8.0.0²,⁴.0²,⁸.0¹²,¹⁷]nonadec-13-en-19-yl acetate