反应详情

To a tetrahydrofuran (2 mL) solution of 2-amino-N-(6-hydroxy-benzofuran-2-ylmethyl)-6-methoxymethyl-nicotinamide (20 mg, 61 μmol) described in Production Example 5-1 were added 2-(hydroxymethyl)pyridine (6.5 μL, 67 μmol), triphenylphosphine (19.2 mg, 73 μmol) and diethylazodicarboxylate (33 μL, 73 μmol) at room temperature, which was stirred at room temperature for 30 minutes. After filtering the reaction solution, the filtrate was purified by reverse phase high-performance liquid chromatography (using an acetonitrile-aqueous mobile phase (containing 0.1% trifluoroacetic acid)) to obtain a mixture of the title compound and 2-amino-N-(6-hydroxy-benzofuran-2-ylmethyl)-6-methoxymethyl-nicotinamide. Then, this mixture was purified by silica gel column chromatography (ethyl acetate:methanol=10:1) to obtain the title compound (6 mg, 24%) as a white solid.

1. filtrationAfter filtering the reaction solution
2. customthe filtrate was purified by reverse phase high-performance liquid chromatography (
3. additionan acetonitrile-aqueous mobile phase (containing 0.1% trifluoroacetic acid))
4. customto obtain