(1S,3bR,4R,5aR,9aR,9bR,11aS)-1-(1-hydroxy-4-oxobutan-2-yl)-3b,6,6,9a,11a-pentamethyl-7-oxo-1H,2H,3bH,4H,5H,5aH,6H,7H,9aH,9bH,10H,11H,11aH-cyclopenta[a]phenanthren-4-yl acetate
(1s,3br,4r,5ar,9ar,9br,11as)-1-(1-hydroxy-4-oxobutan-2-yl)-3b,6,6,9a,11a-pentamethyl-7-oxo-1h,2h,3bh,4h,5h,5ah,6h,7h,9ah,9bh,10h,11h,11ah-cyclopenta[a]phenanthren-4-yl acetate