A solution of methyl 6-bromo-5-(tetrahydrofuran-3-yl)-pyridine-2-carboxylic acid methyl ester (0.185 g, 0.65 mmol), 3-chlorophenylboronic acid (CAN 63503-60-6, 0.15 g, 0.96 mmol), 1,1′-bis(diphenylphosphino)-ferrocene-palladium(II) dichloride methylene chloride complex (CAN 95464-05-4, 20 mg) and cesium carbonate (CAN 534-17-8, 0.63 g, 2 mmol) in DMF (10 mL) was stirred overnight at 80° C. under a nitrogen atmosphere. After filtration, the reaction mixture was poured into water (20 mL) and washed with ethyl acetate (2×20 mL). The organic layer was concentrated in vacuo to provide the title compound (0.75 g, 73%) as black oil which was used in the next step without further purification; MS (EI): m/e=318.1 [M+H]+.
