Potassium Carbonate → 7-benzyl-1-(3-(tetrahydro-2H-pyran-2-yloxy)propyl)-8-(3-(trifluoromethoxy)phenoxy)-3-((2-(trimethylsilyl)ethoxy)methyl)-1H-purine-2,6(3H,7H)-dione

HRID 2200683Notes

Reaction equation

HRID 2200683 reaction equation
[CH2:1]([N:8]1[C:16]2[C:15](=[O:17])[N:14]([CH2:18][CH2:19][CH2:20][O:21][CH:22]3[CH2:27][CH2:26][CH2:25][CH2:24][O:23]3)[C:13](=[O:28])[N:12]([CH2:29][O:30][CH2:31][CH2:32][Si:33]([CH3:36])([CH3:35])[CH3:34])[C:11]=2[N:10]=[C:9]1Cl)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[F:38][C:39]([F:49])([F:48])[O:40][C:41]1[CH:42]=[C:43]([OH:47])[CH:44]=[CH:45][CH:46]=1.C(=O)([O-])[O-].[K+].[K+]>CN(C=O)C.C(OCC)(=O)C.O>[CH2:1]([N:8]1[C:16]2[C:15](=[O:17])[N:14]([CH2:18][CH2:19][CH2:20][O:21][CH:22]3[CH2:27][CH2:26][CH2:25][CH2:24][O:23]3)[C:13](=[O:28])[N:12]([CH2:29][O:30][CH2:31][CH2:32][Si:33]([CH3:36])([CH3:35])[CH3:34])[C:11]=2[N:10]=[C:9]1[O:47][C:43]1[CH:44]=[CH:45][CH:46]=[C:41]([O:40][C:39]([F:38])([F:48])[F:49])[CH:42]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

Participants

7

Reactant 3

HCID 11430Potassium CarbonateHCID 27332613-(Trifluoromethoxy)phenolHCID 904025567-benzyl-8-chloro-1-(3-(tetrahydro-2H-pyran-2-yloxy)propyl)-3-((2-(trimethylsilyl)ethoxy)methyl)-1H-purine-2,6(3H,7H)-dione2×

Product 1

HCID 904027997-benzyl-1-(3-(tetrahydro-2H-pyran-2-yloxy)propyl)-8-(3-(trifluoromethoxy)phenoxy)-3-((2-(trimethylsilyl)ethoxy)methyl)-1H-purine-2,6(3H,7H)-dioneYield 89.4%

Reagents, catalysts & solvents 3

HCID 962WaterSolventHCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolvent

Conditions

Temperature
80 °C

Procedure

To a solution of 7-benzyl-8-chloro-1-(3-(tetrahydro-2H-pyran-2-yloxy)propyl)-3-((2-(trimethylsilyl)ethoxy)methyl)-1H-purine-2,6(3H,7H)-dione (4.7 g, 8.58 mmol, intermediate 18) in DMF (15 mL) was added 3-(trifluoromethoxy)phenol (1.83 g, 10.28 mmol) and potassium carbonate (2.4 g, 17.39 mmol). The mixture was stirred at 80° C. overnight. The mixture was diluted with ethyl acetate and water, and the phases were separated. The organic phase was washed with brine, dried over sodium sulfate, filtered and concentrated to give 7-benzyl-1-(3-(tetrahydro-2H-pyran-2-yloxy)propyl)-8-(3-(trifluoromethoxy)phenoxy)-3-((2-(trimethylsilyl)ethoxy)methyl)-1H-purine-2,6(3H,7H)-dione (5.3 g, 89.3% yield) as yellow oil. LCMS retention time 3.974 min; LCMS M+Na 713.

Workup

  1. customthe phases were separated
  2. washThe organic phase was washed with brine
  3. dry with materialdried over sodium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated

Sources & evidence

ORD record
ord-2d58c81a19184219a87c40858c557d0b
Source dataset
uspto-grants-2016_06
Patent number
US09359359B2

Reaction notes

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