反应详情

温度

100 °C

A mixture of intermediate 59 (2.0 g, 5.42 mmol), 3-fluorobenzylamine (1.86 mL, 16.2 mmol) and MeOH (0.5 mL) is heated at 100° C. for 2 days. The reaction mixture is cooled to RT, and is purified twice by chromatography on silica gel; gradient elution with heptane:EtOAc (70:30-60:40) gives 1.5 g of the product 87. 1H NMR (CDCl3) δ 7.50 (s, 1H), 7.40-7.30 (m, 1H), 7.30-7.15 (m, 2H), 7.10-6.90 (m, 9H), 7.85-7.75 (m, 2H), 5.50-5.30 (m, 2H), 4.80-4.55 (m, 2H), 1.15 (s, 9H); MS: m/z 446 (M++1).

1. temperatureThe reaction mixture is cooled to RT
2. customis purified twice by chromatography on silica gel
3. washgradient elution with heptane:EtOAc (70:30-60:40)