Showing structure for methyl (2z)-3-[(1r,2r,4s,7r,8s,11r,12r,13r,17s)-13,17-dihydroxy-7-(5-hydroxy-2-oxo-5h-furan-3-yl)-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