Showing structure for (1s,3br,4r,5as,7r,9s,9as,9bs,11as)-7,9-bis(acetyloxy)-3b,6,6,9a,11a-pentamethyl-1-[(3r)-5-oxo-6-(propan-2-ylidene)oxan-3-yl]-1h,2h,4h,5h,5ah,7h,8h,9h,9bh,10h,11h-cyclopenta[a]phenanthren-4-yl acetate