Showing structure for 3-{7-hydroxy-3a,6,6,9a,11a-pentamethyl-1h,2h,3h,4h,5h,5ah,7h,8h,9h,10h,11h-cyclopenta[a]phenanthren-1-yl}-5-(3-methylbut-2-en-2-yl)oxolan-2-one