反应详情

A mixture of 2-(5-cyanopyridin-2-yl)ethyl methanesulfonate (4.0 g, crude), tert-butyl(2-aminoethyl)carbamate (4.8 g, 30 mmol) and K2CO3 (3.2 g, 30 mmol) in 40 mL of DMF was stirred overnight at room temperature. The reaction mixture was poured into ice water and extracted with EtOAc (100 mL×3). The combined EtOAc layer was washed with brine and concentrated. The residue was purified by silica gel column (DCM:MeOH=10:1) to afford the title compound.

1. extractionextracted with EtOAc (100 mL×3)
2. washThe combined EtOAc layer was washed with brine
3. concentrationconcentrated
4. customThe residue was purified by silica gel column (DCM:MeOH=10:1)