Solid HOBT (552 mg, 3.60 mmol) was added in one charge to a stirred solution of 5-hydroxy-2-[(phenylmethyl)oxy]benzoic acid (may be prepared as described in Description 38; 800 mg, 3.28 mmol), 3-pyridinamine (339 mg, 3.60 mmol) and EDC (691 mg, 3.60 mmol) in DMF (30 mL) at room temp. The reaction mixture was stirred at room temperature for 4 h. After 4 h, water was added to the reaction mixture. The reaction mixture was filtered and the residue was washed with ethyl acetate to yield the title compound as a white solid. 500 mg.
