Showing structure for (3s,3as,4r,6ar,9ar,9br)-4-hydroxy-3,9-dimethyl-6-methylidene-2-oxo-3h,3ah,5h,6ah,7h,9ah,9bh-azuleno[4,5-b]furan-4-yl (2e)-4-hydroxy-2-methylbut-2-enoate