Sodium hydride → 6-{[(1S,3S)-3-({[tert-butyl(dimethyl)silyl]oxy}methyl)cyclopentyl]oxy}-8-(1-naphthyl)-9-(tetrahydro-2H-pyran-2-yl)-9H-purine

HRID 1677942Notes

Reaction equation

HRID 1677942 reaction equation
[Si:1]([O:8][CH2:9][C@H:10]1[CH2:14][CH2:13][C@H:12]([OH:15])[CH2:11]1)([C:4]([CH3:7])([CH3:6])[CH3:5])([CH3:3])[CH3:2].[H-].[Na+].Cl[C:19]1[N:27]=[CH:26][N:25]=[C:24]2[C:20]=1[N:21]=[C:22]([C:34]1[C:43]3[C:38](=[CH:39][CH:40]=[CH:41][CH:42]=3)[CH:37]=[CH:36][CH:35]=1)[N:23]2[CH:28]1[CH2:33][CH2:32][CH2:31][CH2:30][O:29]1>CN(C=O)C>[Si:1]([O:8][CH2:9][C@H:10]1[CH2:14][CH2:13][C@H:12]([O:15][C:19]2[N:27]=[CH:26][N:25]=[C:24]3[C:20]=2[N:21]=[C:22]([C:34]2[C:43]4[C:38](=[CH:39][CH:40]=[CH:41][CH:42]=4)[CH:37]=[CH:36][CH:35]=2)[N:23]3[CH:28]2[CH2:33][CH2:32][CH2:31][CH2:30][O:29]2)[CH2:11]1)([C:4]([CH3:7])([CH3:6])[CH3:5])([CH3:3])[CH3:2]

Participants

5

Reactant 3

HCID 24758Sodium hydrideHCID 66797963(1S,3S)-3-({[tert-butyl(dimethyl)silyl]oxy}methyl)cyclopentanolHCID 866187096-chloro-8-(1-naphthyl)-9-(tetrahydro-2H-pyran-2-yl)-9H-purine

Product 1

HCID 667978956-{[(1S,3S)-3-({[tert-butyl(dimethyl)silyl]oxy}methyl)cyclopentyl]oxy}-8-(1-naphthyl)-9-(tetrahydro-2H-pyran-2-yl)-9H-purineYield 70%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent2×

Procedure

To a solution of (1S,3S)-3-({[tert-butyl(dimethyl)silyl]oxy}methyl)-cyclopentanol (111.0 mg, 0.0004817 mol) (azeotroped with toluene) in DMF (3.6 mL) at 0° C. under an atmosphere of nitrogen was added sodium hydride (24.1 mg, 0.000602 mol). The mixture was stirred for 15 min. To this cold solution was added a solution of 6-chloro-8-(1-naphthyl)-9-(tetrahydro-2H-pyran-2-yl)-9H-purine (163 mg, 0.000401 mol) in DMF (1.8 mL). The flask was rinsed with DMF (1.0 mL)) and this was added to the reaction as well. The resulting mixture was stirred for 20 h. The reaction mixture was quenched with water and the mixture was extracted with EtOAc (3×). The combined organic layers were dried over Na2SO4, filtered and collected in vacuo. The residue was purified by flash chromatography (10 to 40% EtOAc/hexanes) to obtain 156.9 mg (70%) of the title compound as a white solid.

Workup

  1. washThe flask was rinsed with DMF (1.0 mL)) and
  2. additionthis was added to the reaction as well
  3. stirringThe resulting mixture was stirred for 20 h
  4. customThe reaction mixture was quenched with water
  5. extractionthe mixture was extracted with EtOAc (3×)
  6. dry with materialThe combined organic layers were dried over Na2SO4
  7. filtrationfiltered
  8. customcollected in vacuo
  9. customThe residue was purified by flash chromatography (10 to 40% EtOAc/hexanes)

Sources & evidence

ORD record
ord-ddbcb381660b45beac846f6bcd103054
Source dataset
uspto-grants-2011_08
Patent number
US08008307B2

Reaction notes

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