Showing structure for (1r,2s,4s,6s,7s,8r,9s,10s,11s,12r,13r,15r)-4,7,9,11,12,13-hexakis(acetyloxy)-10-hydroxy-2,6,14,14-tetramethyl-3-oxo-16-oxatetracyclo[8.6.1.0¹,¹⁵.0⁴,⁸]heptadecan-6-yl 2-methylpropanoate