(5-bromo-1-benzofuran-2-yl)methanamine

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To an N,N-dimethylformamide (10 mL) solution of C-(5-bromo-benzofuran-2-yl)-methylamine (455 mg, 2.01 mmol) described in Production Example 56-1-4 were added 2-amino-6-methoxymethyl-nicotinic acid (293 mg, 1.61 mmol) described in Production Example 4-1-5, triethylamine (700 μL, 5.03 mmol) and benzotriazol-1-yloxytris(dimethylamino)phosphonium hexafluorophosphate (1.07 g, 2.41 mmol) at room temperature, which was stirred for 12 hours. Water was added to the reaction solution at room temperature followed by extraction with ethyl acetate. The organic layer was washed with water and sat. NaCl followed by drying over anhydrous magnesium sulfate, filtering and concentrating the filtrate under a reduced pressure. The residue was purified by NH silica gel column chromatography (heptane:ethyl acetate=1:1) to obtain the title compound (255 mg, 33%) as a white solid. followed by extraction with ethyl acetate The organic layer was washed with water and sat. NaCl by drying over anhydrous magnesium sulfate filtering concentrating the filtrate under a reduced pressure The residue was purified by NH silica gel column chromatography (heptane:ethyl acetate=1:1)