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