Showing structure for (1r,2r,4s,7r,8s,11r,12s,13s,15r,17s)-13-(acetyloxy)-7-(furan-3-yl)-1,8,12,16,16-pentamethyl-5,19-dioxo-3,6-dioxapentacyclo[9.8.0.0²,⁴.0²,⁸.0¹²,¹⁷]nonadecan-15-yl acetate