Showing structure for (1r,3r,4ar,5r,6r,8as)-4a,5-dimethyl-6-{[(2z)-2-methylbut-2-enoyl]oxy}-2-oxo-3-(prop-1-en-2-yl)-octahydronaphthalen-1-yl (2z)-2-methylbut-2-enoate