反应详情

6-[3-(4-Fluoro-phenyl)-5-formyl-isoxazol-4-ylmethoxy]-nicotinic acid methyl ester (2.50 g, 7.02 mmol) and sodium borohydride (553 mg, 14.0 mmol) in methanol (125 mL) were stirred for 2 h at room temperature. Addition of 10% aqueous citric acid (200 mL) and extraction with ethyl acetate yielded 6-[3-(4-fluoro-phenyl)-5-hydroxymethyl-isoxazol-4-ylmethoxy]-nicotinic acid methyl ester (2.60 g, quant.) as white solid. MS: m/e=359.2 [M+H]+.