110714-43-7
ethyl bromo-[6-cyano-1,1-(ethylenedioxy)-5-oxo-1,2,3,5-tetrahydroindolizin-7-yl] acetate
→
128434-24-2
ethyl 2-acetoxy-2-[6-cyano-1,1-(ethylenedioxy)-5-oxo-1,2,3,5-tetrahydroindolizin-7-yl]butanoate