反应详情

8-Hydroxymethyl-7-(2-methoxyphenyl)-3,3-dimethyl-3,4-dihydro-1H-quinoxalin-2-one (Reference Compound No. 3-1, 54.2 mg, 0.17 mmol) was dissolved in tetrahydrofuran (1.5 mL) and triethylamine (73.0 μL 0.52 mmol) and benzoyl chloride (30.0 μL, 0.26 mmol) were added thereto successively. The reaction mixture was stirred at room temperature for 24 hours. Ethyl acetate (30 mL) and water (30 mL) were added to the reaction mixture and partitioned. The organic layer was washed with water (30 mL) and saturated brine (30 mL) successively, dried over anhydrous magnesium sulfate, and then the solvent was removed under reduced pressure. The obtained residue was filtered with ethyl acetate to give the titled compound (54.1 mg) as a colorless solid. (Yield 76%)

1. custompartitioned
2. washThe organic layer was washed with water (30 mL) and saturated brine (30 mL) successively
3. dry with materialdried over anhydrous magnesium sulfate
4. customthe solvent was removed under reduced pressure
5. filtrationThe obtained residue was filtered with ethyl acetate