instead of 4 chloro 2 iodo phenyl methanol 244104 55 0 in step c and 5 6 dihydro 5h pyrrolo 1 2 c imidazol 7 one 426219 43 4 instead of 6 7 dihydro 5h imidazo 1 5 a pyridin 8 one 426219 51 4 in step b the title compound is obtained according to the procedure described for example 5a starting from 2 bromo 4 chloro 5 fluoro phenyl acetic acid and is identified based on the rf value the title compound is obtained according to the procedure described for example 5b starting from 2 bromo 4 chloro 5 fluoro phenyl acetonitrile and is identified based on the rf value the title compound is obtained according to the procedure described for example 10c starting from 1 bromo 2 bromomethyl 5 chloro 4 fluoro benzene and is identified based on the rf value 0 55 mmol of phosphorous tribromid is added dropwise to a solution of 1 mmol of 2 bromo 4 chloro 5 fluoro phenyl methanol in 40 ml of dichloromethane the trouble reaction solution is stirred at room temperature for 2 hours diluted with 100 ml of diethylether and decanted the supernatant is washed with 10 ml of 2n sodium bicarbonate solution 20 ml of water and.