Showing structure for (1r,2s,4r,6r,9s,10s,11s,12s,14r,15r,18r)-14-hydroxy-6-[(2s)-2-hydroxy-5-oxo-2h-furan-3-yl]-10-(2-methoxy-2-oxoethyl)-7,9,11,15-tetramethyl-3,17-dioxapentacyclo[9.6.1.0²,⁹.0⁴,⁸.0¹⁵,¹⁸]octadec-7-en-12-yl 3-methylbut-2-enoate