Showing structure for (1r,2r,3s,8r,10r,11s,12r,14s,16s,17s)-3-(acetyloxy)-16-(furan-3-yl)-2,7,7,11,17-pentamethyl-5,15-dioxo-6,13-dioxapentacyclo[9.8.0.0²,⁸.0¹²,¹⁴.0¹²,¹⁷]nonadecan-10-yl acetate