Showing structure for (3r,6r)-3-hydroxy-8-methyl-8-azabicyclo[3.2.1]octan-6-yl (3r,6r)-8-methyl-6-{[(2e)-2-methylbut-2-enoyl]oxy}-8-azabicyclo[3.2.1]octan-3-yl 2-methylidenebutanedioate