反应详情

A solution of (6-fluoro-quinolin-3-yl)-carbamic acid tert-butyl ester (1.3 g, 4.95 mmol) in 1,2-dichloroethane (15 mL) was treated with trifluoroacetic acid (15 mL) and water (1 mL). The resultant solution was stirred at room temperature for 6 hours. The solvents were evaporated in vacuo, and the residue was triturated in diethyl ether. The solid was purified by flash chromatography using a gradient of 2 N ammonia in methanol (0% to 3%) in dichloromethane as the eluant, to give the product as a colorless solid, 0.47 g (59%). MS: m/z 162.9 (MH+).

1. customThe solvents were evaporated in vacuo
2. customthe residue was triturated in diethyl ether
3. customThe solid was purified by flash chromatography