反应详情

To a solution of 8-amino-7-(4-chlorobenzyl)-3-methyl-1-(3-(tetrahydro-2H-pyran-2-yloxy)propyl)-1H-purine-2,6(3H,7H)-dione (95 mg, 0.21 mmol, intermediate 53) in THF (5 mL) was added sodium hydride (10 mg, 0.23 mmol) at 0° C. The reaction was stirred at room temperature for 1 h; then Isopropylsulphonyl chloride (29 mg, 0.21 mmol) was added dropwise at 0° C. The mixture was stirred at room temperature 1 h. The reaction was quenched with aqueous ammonium chloride (2 mL) at 0° C. and then was partitioned between ethyl acetate and water. The combined organic layer was dried over sodium sulfate, filtered and concentrated to give the product as a yellow syrup (60 mg) which was used without purification. LCMS retention time 1.519 min; LCMS MH+-THP 470.

1. stirringThe mixture was stirred at room temperature 1 h
2. customThe reaction was quenched with aqueous ammonium chloride (2 mL) at 0° C.
3. customwas partitioned between ethyl acetate and water
4. dry with materialThe combined organic layer was dried over sodium sulfate
5. filtrationfiltered
6. concentrationconcentrated