反应详情

Sodium hydride, 60% in oil (0.141 mL, 6.70 mmol) was added portionwise to a solution of tert-butyl(trans-3-hydroxycyclobutyl)carbamate (0.57 g, 3.04 mmol) and 2-chloro-1-methyl-1H-benzoimidazole (0.558 g, 3.35 mmol) in DMF (3 mL). The reaction mixture was stirred at room temperature for 3 h, diluted with water and extracted with EtOAc. EtOAc extract was concentrated and residue purified with ISCO eluting with 0-40% EtOAc/hexanes to give the desired product tert-butyl(trans-3-((1-methyl-1H-benzo[d]imidazol-2-yl)oxy)cyclobutyl)carbamate (0.388 g, 1.222 mmol, 40.2% yield). m/z: 318.2 (M+1)

1. extractionextracted with EtOAc
2. extractionEtOAc extract
3. concentrationwas concentrated
4. customresidue purified with ISCO
5. washeluting with 0-40% EtOAc/hexanes