Showing structure for 3-{[8,9-dihydroxy-7,7-dimethyl-2-(2-methylbut-3-en-2-yl)-1h,8h,9h-pyrano[2,3-g]indol-3-yl]methyl}-1-hydroxy-3h,6h,7h,8h,8ah-pyrrolo[1,2-a]pyrazin-4-one