反应详情

1-(2-Trimethylsilylethoxymethyl)-1H-imidazole-4-methanol (100 g) was dissolved in dichloromethane (1 L), and under stirring TEA (122 mL), DMAP (5.35 g), and then TBDPSCl (149 mL) were added. After stirring for 1 day, the reaction mixture solution was washed with water, dried over anhydrous sodium sulfate, and subsequently the solvent was distilled off under reduced pressure. The resulting residue was purified by flash chromatography (ethyl acetate/hexane=25%-50%) using silica gel column (product name: Ultra Pack E, manufactured by Yamazen Corporation) to afford the title compound (146 g).

1. washthe reaction mixture solution was washed with water
2. dry with materialdried over anhydrous sodium sulfate
3. distillationsubsequently the solvent was distilled off under reduced pressure
4. customThe resulting residue was purified by flash chromatography (ethyl acetate/hexane=25%-50%)