反应详情

To a solution of 5-(4-fluoro-2-methoxyphenyl)-N-methylpyridazin-4-amine (27 mg, 116 μmol) in dichloromethane (1 mL) were added 3-(methylsulfonyl)-5-(trifluoromethyl)benzoyl chloride (66.4 mg, 232 mmol) and N,N-diisopropylethylamine (60 mg, 80.9 μL, 463 μmol). The clear, light brown solution was stirred at room temperature for 1.75 h and then poured on saturated aqueous ammonium chloride solution and dichloromethane and the layers were separated. The aqueous layer was extracted three times with dichloromethane. The organic layers were dried over magnesium sulfate, filtered, treated with silica gel and evaporated. The compound was purified by silica gel chromatography on a 10 g column using a MPLC system (CombiFlash Companion, Isco Inc.) eluting with a gradient of n-heptane:ethyl acetate (100:0 to 0:100) to give the desired compound as a light brown solid (15 mg; 25%). MS (ESI+): m/z=483.09 ([M+H]+).

1. customthe layers were separated
2. extractionThe aqueous layer was extracted three times with dichloromethane
3. dry with materialThe organic layers were dried over magnesium sulfate
4. filtrationfiltered
5. additiontreated with silica gel
6. customevaporated
7. customThe compound was purified by silica gel chromatography on a 10 g column
8. washeluting with a gradient of n-heptane:ethyl acetate (100:0 to 0:100)