Showing structure for (1r,2r,4s,7s,8s,9r,11s,12r,18s,20s)-7-(furan-3-yl)-18,20-dihydroxy-20-methoxy-1,8,12,17,17-pentamethyl-5,15,19-trioxo-3,6,16-trioxapentacyclo[9.9.0.0²,⁴.0²,⁸.0¹²,¹⁸]icos-13-en-9-yl acetate