Showing structure for (4s,4as,5s,8ar,9r)-8a-hydroxy-3,4a,5-trimethyl-9-{[(2e)-2-methylbut-2-enoyl]oxy}-4h,5h,6h,7h,8h,9h-naphtho[2,3-b]furan-4-yl (2e)-3-methylpent-2-enoate