反应详情

NaHCO3 (0.21 g) was added to a solution of NH2OH HCl (0.14 g) in THF/water (5 mL each) at 0° C. and the mixture was stirred for ½ h. A solution of N-(2,6-dichlorobenzoyl)-4-(2,6-dimethoxyphenyl)-L-phenylalanyl chloride (0.1 g) in THF (5 mL) was added to the mixture at 0° C. and the mixture was stirred overnight at room temperature. The mixture was partitioned between EtOAc and water. The EtOAc layer was washed successively with 1 N HCl and brine, dried and evaporated. The residue was purified by preparative TLC (silica gel; eluent: CH2Cl2/MeOH 8%) to yield 27 mg of the title compound. ESMS: m/z 489 (MH+).

1. stirringthe mixture was stirred overnight at room temperature
2. customThe mixture was partitioned between EtOAc and water
3. washThe EtOAc layer was washed successively with 1 N HCl and brine
4. customdried
5. customevaporated
6. customThe residue was purified by preparative TLC (silica gel; eluent: CH2Cl2/MeOH 8%)