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