Showing structure for 5-hydroxy-1-(5-methoxy-2-oxo-5h-furan-3-yl)-3b,6,6,9a,11a-pentamethyl-7-oxo-1h,2h,4h,5h,5ah,9bh,10h,11h-cyclopenta[a]phenanthren-4-yl 3-methylbut-2-enoate