Showing structure for (1s,2s,3r,4r,5r,7s,8r,11s,12r,14r,17s)-12-(acetyloxy)-14-hydroxy-5,8,11-trimethyl-15-methylidene-10,18-dioxatetracyclo[9.7.0.0²,⁷.0³,¹⁷]octadecan-4-yl butanoate