反应详情

温度

-42 °C

4-(2-chloro-9-(tetrahydro-2H-pyran-2-yl)-9H-purin-6-yl)morpholine (20.0 g, 0.062 mol) was cooled to −42° C. in THF (400 mL). A solution of n-butyllithium (2.5 M in hexanes, 48 mL, 0.12 mol) was added portionwise over 10 min. The mixture gradually turned yellow. The reaction mixture was then allowed to stir at −42° C. for 30 minutes and then anhydrous acetone (10 mL, 0.1 mol) was added at once. The resulting reaction mixture was slowly warmed to 0° C. over a 2 hour period. The mixture was subsequently quenched with water, extracted with EtOAc and dried over MgSO4. The slurry was filtered and concentrated in vacuo to provide 2-(2-chloro-6-morpholino-9-(tetrahydro-2H-pyran-2-yl)-9H-purin-8-yl)propan-2-ol (23 g, 98%) as a yellow solid. MS (ESI+): m/z 382.1 (M+H+)2-(2-chloro-6-morpholino-9-(tetrahydro-2H-pyran-2-yl)-9H-purin-8-yl)propan-2-ol

1. customThe resulting reaction mixture
2. temperaturewas slowly warmed to 0° C. over a 2 hour period
3. customThe mixture was subsequently quenched with water
4. extractionextracted with EtOAc
5. dry with materialdried over MgSO4
6. filtrationThe slurry was filtered
7. concentrationconcentrated in vacuo