Showing structure for (1s,1'r,3'r,4'r,8'r,9'z)-1',10'-dimethyl-3-(4-methylpent-3-en-1-yl)-6',13'-dioxo-7',14'-dioxaspiro[cyclohexane-1,5'-tricyclo[9.2.1.0⁴,⁸]tetradecane]-3,9',11'-trien-3'-yl (2z)-2-methylbut-2-enoate