反应详情

温度

70 °C

DIPEA (142 mg, 1.10 mmol), tert-butyl 2-(2-(2-aminoethoxy)ethoxy)ethylcarbamate (273 mg, 1.10 mmol), and 2 (150 mg, 0.55 mmol) were dissolved in THF (5 mL). The mixture was stirred at 70° C. under N2 overnight. The solvent was removed under reduced pressure. The resulting residue was purified by column chromatography on silica gel (eluent CH3OH/CH2Cl2=2/98) to give 3 as a white solid (124 mg, 47%): ESI-MS m/z 485.2 (M+H+) calculated for C19H37N10O5 485.3.

1. customThe solvent was removed under reduced pressure
2. customThe resulting residue was purified by column chromatography on silica gel (eluent CH3OH/CH2Cl2=2/98)