Showing structure for (1r,3as,3bs,4r,9ar,9bs,11ar)-1-[(2s,3s)-3-hydroxy-4-[(2s)-2,3,3-trimethyloxiran-2-yl]butan-2-yl]-9a,11a-dimethyl-7-oxo-1h,2h,3h,3ah,3bh,4h,5h,9bh,10h,11h-cyclopenta[a]phenanthren-4-yl acetate