反应详情

To a suspension of NaH (60%, 246 mg) in THF (dry) (10 mL) was added 2-chloroethanesulfonyl chloride (0.388 mL) at 0° C. and the mixture was stirred for 10 min at the same temperature. A solution of 3-[6-(cyclohexyloxy)pyridin-3-yl]pyrazin-2-amine (332 mg) in THF (dry) (10 mL) was added at 0° C. and the mixture was stirred at room temperature under nitrogen for 1 day. The mixture was quenched with water at 0° C. carefully. EtOAc and THF were added and the organic layer was separated, washed with brine, dried over anhydrous sodium sulfate and concentrated in vacuo. The residue was crystallized from MeCN-THF/IPE to give the title compound (104 mg) as colorless crystals.

1. stirringthe mixture was stirred at room temperature under nitrogen for 1 day
2. customThe mixture was quenched with water at 0° C. carefully
3. additionEtOAc and THF were added
4. customthe organic layer was separated
5. washwashed with brine
6. dry with materialdried over anhydrous sodium sulfate
7. concentrationconcentrated in vacuo
8. customThe residue was crystallized from MeCN-THF/IPE