反应详情

tert-Butyl 2-(2-aminoethoxy)ethylcarbamate (420, 2.06 mmol) was then taken up in CH3CN (20 mL) along with nicotinic acid (253 mg, 2.06 mmol) and EDCI (434 mg, 2.3 mmol). The resulting reaction mixture was stirred at room temperature for 18 h. It was then diluted with EtOAc (20 mL), washed with saturated aqueous NaHCO3, brine, dried over Na2SO4, filtered and concentrated under reduced pressure. The resulting residue was purified by silica gel chromatography (9:1 CH2Cl2/MeOH) to afford tert-butyl 2-(2-(nicotinamido)ethoxy)ethylcarbamate (280 mg, 44%). MS calculated for C15H23N3O4: 309.17; found: [M+H]+310.

1. customThe resulting reaction mixture
2. washwashed with saturated aqueous NaHCO3, brine
3. dry with materialdried over Na2SO4
4. filtrationfiltered
5. concentrationconcentrated under reduced pressure
6. customThe resulting residue was purified by silica gel chromatography (9:1 CH2Cl2/MeOH)