Showing structure for 2-({1-ethenyl-9a,11a-dimethyl-1h,2h,3h,3ah,3bh,4h,6h,7h,8h,9h,9bh,10h,11h-cyclopenta[a]phenanthren-7-yl}oxy)-3,5-dihydroxyoxan-4-yl acetate