反应详情

To a solution of 5-amino-1-(4-fluorophenyl)-N-{[2-(trifluoromethyl)-2-oxiranyl]methyl}-1H-pyrazole-4-carboxamide (1.03 g, 3 mmol) in anhydrous acetonitrile (10 ml) was added 2-fluoroethylamine hydrochloride (650 mg, 6 mmol, ca. 90% purity) and triethylamine (0.98 ml, 7 mmol) and the resulting suspension was shaken for 4 days. It was partitioned between ethyl acetate (70 ml) and water (20 ml), washed with saturated brine (20 ml), dried over sodium sulphate and evaporated to give a gum (1.57 g). This was purified on 100 g SiO2 using the Flashmaster 2 with 0-100°/0 ethyl acetate in cyclohexane 60 minute gradient as eluent. This gave the title compound (924 mg).

1. customIt was partitioned between ethyl acetate (70 ml) and water (20 ml)
2. washwashed with saturated brine (20 ml)
3. dry with materialdried over sodium sulphate
4. customevaporated