0.42 g (1.62 mmol) of 1-(2-methoxyethyl)-3-piperidin-4-yl-1H-pyrrolo[2,3-b]pyridine and 0.45 g (1.94 mmol) of 3-bromomethylbenzoic acid methyl ester were solved in 9 ml of 4-methyl-2-butanone and 0.67 g (4.86 mmol) of potassium carbonate and 0.02 g (0.16 mmol) of sodium iodide were added. The mixture was refluxed for 18 hours and, after cooling, water was added, the organic layer separated and washed with water and brine. The solvent was distilled off. The crude material weighed 0.67 g and was used in the following step without further purification.
