反应详情

温度

0 °C

To the solution of (S)-Methyl 5-[N-({5-[(3-{[(1,3-dimethyl-1H-pyrazol-5-yl)carbonyl]amino}phenyl)ethynyl]pyridin-3-yl}carbonyl)-S-phenylsulfonimidoyl]pentanoate (120 mg, 0.2 mmol) in THF (4 mL) at 0° C. was added dropwise a solution of aqueous NaOH (0.5 N, 2.0 mL). After the reaction mixture was stirred at 0° C. for 2 hours, 2 N HCl was carefully added to adjust the pH ˜5 followed by a partition between aqueous NH4Cl and EtOAc. The EtOAc layer was further washed with brine once and dried with anhydrous sodium sulfate. The organic layer was decanted, concentrated and subject to a gradient column chromatography (from EtOAc to MeOH-EtOAc 1:5) yielding the title compound as white foam in amount of (85 mg, 73%).

1. customa partition between aqueous NH4Cl and EtOAc
2. washThe EtOAc layer was further washed with brine once
3. dry with materialdried with anhydrous sodium sulfate
4. customThe organic layer was decanted
5. concentrationconcentrated