Showing structure for (11r,12r,13s,14r)-3,22-dimethoxy-12,13-dimethyl-14-{[(2z)-2-methylbut-2-enoyl]oxy}-5,7,18,20-tetraoxapentacyclo[13.7.0.0²,¹⁰.0⁴,⁸.0¹⁷,²¹]docosa-1(22),2(10),3,8,15,17(21)-hexaen-11-yl (2e)-2-methylbut-2-enoate