HOBT (102 mg, 0.67 mmol) was added in one charge to a stirred solution of 5-[(dimethylamino)carbonyl]-2-[(phenylmethyl)oxy]benzoic acid (may be prepared as described in Description 59; 200 mg, 0.67 mmol), 3-pyridinamine (62.9 mg, 0.67 mmol) and EDC (128 mg, 0.67 mmol) in N,N-dimethylformamide (5 ml) under nitrogen at room temperature. The reaction mixture was stirred at room temperature for 4 h. The mixture was diluted with water (50 ml). The precipitate was collected by filtration. The solid was dissolved in ethyl acetate (100 ml), and the organic phase was washed with NaOH (1 mol/l 25 ml), water (25 ml), saturated brine (25 ml), dried over sodium sulfate, and evaporated in vacuo to yield the title compound as a white solid. 78 mg.
