Showing structure for methyl (2z)-3-[(1r,2r,4s,7s,8s,9r,11r,12r,13r,17s)-9-(acetyloxy)-7-(furan-3-yl)-13,17-dihydroxy-1,8,12,15,15-pentamethyl-5,14-dioxo-3,6,16-trioxapentacyclo[9.6.0.0²,⁴.0²,⁸.0¹³,¹⁷]heptadecan-12-yl]prop-2-enoate