反应详情

A mixture of 5.4 g (E)-3-[1-(3-bromo-benzenesulfonyl)-1H-pyrrol-3-yl]-acrylic acid with 300 ml DMF and 2.34 g HOBt.H2O and 21.0 ml Triethylamine is stirred at ambient temperature for 0.5 h. Then it is added 8.8 g EDC.HCL and it is stirred again at ambient temperature for 0.5 h. Finally 3.2 g (2-amino-phenyl)-carbamic acid tert-butyl ester are added and the suspension is stirred at ambient temperature for 24 h. The DMF is evaporated and the residue is extracted with ethyl acetate and water. The organic layer is dried over sodium sulfate. The title product is isolated by flash chromatography. By this method 6.3 g of a yellow foam is obtained.

1. stirringthe suspension is stirred at ambient temperature for 24 h
2. customThe DMF is evaporated
3. extractionthe residue is extracted with ethyl acetate and water
4. dry with materialThe organic layer is dried over sodium sulfate