反应详情

Under a nitrogen atmosphere, ethoxyacetyl chloride (5.5 g, 45 mmol) was added dropwise to a solution of 2-chloro-N4-{[3-(4-fluorophenyl)isoxazol-5-yl]methyl}quinoline-3,4-diamine (15.00 g, 40.67 mmol) and triethylamine (8.5 mL, 61 mmol) in dichloromethane (200 mL) at 6° C. After the reaction was stirred for 30 minutes, an analysis by HPLC indicated the presence of starting material, and additional ethoxyacetyl chloride (1.01 g) was added. The stirring was continued, and over the course of five hours, a total of 13 g of ethoxyacetyl chloride was added. The work-up procedure described in Part A of Example 19 was followed to provide N-[2-chloro-4-({[3-(4-fluorophenyl)isoxazol-5-yl]methyl}amino)quinolin-3-yl]-2-ethoxyacetamide as an orange solid.

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