1: With sulfuric acid in water 20 h; Heating / reflux; 2: With sodium hydroxide; water

N-chloro-succinimide; trifluorormethanesulfonic acid; palladium diacetate; 1-(chloromethyl)-4-fluoro-1,4-diazoniabicyclo-[2.2.2]octane bis(tetrafluoroborate) in 1,2-dichloro-ethane T=70°C; 4 h; Sealed tube; regioselective reaction;

potassium fluoride; 18-crown-6 ether in tetrahydrofuran T=0°C; 45.5 h; Title compound not separated from byproducts.;