反应详情

温度

0 °C

N,N-Diisopropylethylamine (3.20 mL, 18.35 mM) was added to a solution of (5S)-5-(aminomethyl)-3-(3-fluorophenyl)-1,3-oxazolidin-2-one (0.77 g, 3.57 mM; see Dong Pharmaceuticals WO 0194342) in anhydrous methanol (25 mL). The solution was cooled to 0° C., and N′-[2,2-dichloro-1-methylethylidene]-4-methylbenzenesulfonohydrazide (1.28 g, 4.58 mM) was added. The solution was warmed to room temperature and stirred overnight. The reaction mixture was then concentrated under vacuum and chromatographed on silica gel using 2% methanol/dichloromethane to give 0.71 g of the title product.

1. temperatureThe solution was warmed to room temperature
2. concentrationThe reaction mixture was then concentrated under vacuum
3. customchromatographed on silica gel using 2% methanol/dichloromethane