反应详情

温度

70 °C

To a solution of 6-{[(1R,3S,4S)-3-{[tert-butyl(dimethyl)silyl]oxy}-4-({[tert-butyl(dimethyl)silyl]oxy}methyl)cyclopentyl]oxy}-9-(tetrahydro-2H-pyran-2-yl)-9H-purine (288 mg, 0.000512 mol) in THF (10 mL, 0.1 mol) was added N-Iodosuccinimide (0.576 g, 0.00256 mol), and the mixture was heated at 70° C. overnight. The reaction was cooled, quenched by addition of saturated aqueous NaHSO3 and the mixture was extracted with DCM (3×), washed with water, brine dried (Na2SO4), filtered and concentrated. The residue was purified by flash chromatography (0 to 10% EtOAc/hexanes) to obtain 271 mg (76.9%). Reference: Nolsoe, J. M. J.; Gundersen, L-L.; Rise, F. Acta Chemica Scandinavica, 1999, 53, 366-372.

1. temperatureThe reaction was cooled
2. customquenched by addition of saturated aqueous NaHSO3
3. extractionthe mixture was extracted with DCM (3×)
4. washwashed with water, brine
5. dry with materialdried (Na2SO4)
6. filtrationfiltered
7. concentrationconcentrated
8. customThe residue was purified by flash chromatography (0 to 10% EtOAc/hexanes)
9. customto obtain 271 mg (76.9%)