1-Butanol → 4-(1H-Pyrazol-4-yl)-7-(2-(trimethylsilyl)ethoxy)methyl-7 H-pyrrolo(2,3-d)-pyrimidine

HRID 1617338Notes

Reaction equation

HRID 1617338 reaction equation
Cl[C:2]1[C:3]2[CH:10]=[CH:9][N:8]([CH2:11][O:12][CH2:13][CH2:14][Si:15]([CH3:18])([CH3:17])[CH3:16])[C:4]=2[N:5]=[CH:6][N:7]=1.C(O)CCC.C(OC([N:29]1[CH:33]=[C:32](B2OC(C)(C)C(C)(C)O2)[CH:31]=[N:30]1)C)C.C(=O)([O-])[O-].[K+].[K+]>C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.O>[NH:29]1[CH:33]=[C:32]([C:2]2[C:3]3[CH:10]=[CH:9][N:8]([CH2:11][O:12][CH2:13][CH2:14][Si:15]([CH3:18])([CH3:17])[CH3:16])[C:4]=3[N:5]=[CH:6][N:7]=2)[CH:31]=[N:30]1

Participants

7

Reactant 4

HCID 2631-ButanolHCID 11430Potassium CarbonateHCID 467367974-Chloro-7-((2-(trimethylsilyl)ethoxy)methyl)-7H-pyrrolo(2,3-d)pyrimidineHCID 467367981-(1-Ethoxyethyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole

Product 1

HCID 426313464-(1H-Pyrazol-4-yl)-7-(2-(trimethylsilyl)ethoxy)methyl-7 H-pyrrolo(2,3-d)-pyrimidine

Reagents, catalysts & solvents 2

HCID 178418397HCID 178418397, compoundCatalystHCID 962WaterSolvent

Conditions

Temperature
100 °C

Procedure

A 1000 mL round bottom flask was charged with 4-chloro-7-{[2-(trimethylsilyl)ethoxy]methyl}-7H-pyrrolo[2,3-d]pyrimidine (10.00 g, 35.23 mmol), 1-butanol (25.0 mL), 1-(1-ethoxyethyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (15.66 g, 52.85 mmol), water (25.0 mL) and potassium carbonate (12.17 g, 88.08 mmol). This solution was degased 4 times, filling with nitrogen each time. To the solution was added tetrakis(triphenylphosphine)palladium(0) (4.071 g, 3.523 mmol). The solution was degased 4 times, filling with nitrogen each time. The mixture was stirred overnight at 100° C. After being cooled to room temperature, the mixture was filtered through a bed of celite and the celite was rinsed with ethyl acetate (42 mL). The filtrate was combined, and the organic layer was separated. The aqueous layer was extracted with ethyl acetate. The organic extracts were combined and concentrated under vacuum with a bath temperature of 30-70° C. to give the final compound 4-(1H-pyrazol-4-yl)-7-{[2-(trimethylsilyl)ethoxy]methyl}-7H-pyrrolo[2,3-d]pyrimidine. Yield: 78%. LC-MS: 316.2 (M+H)+.

Workup

  1. customThis solution was degased 4 times
  2. customThe solution was degased 4 times
  3. temperatureAfter being cooled to room temperature
  4. filtrationthe mixture was filtered through a bed of celite
  5. washthe celite was rinsed with ethyl acetate (42 mL)
  6. customthe organic layer was separated
  7. extractionThe aqueous layer was extracted with ethyl acetate
  8. concentrationconcentrated under vacuum with a bath temperature of 30-70° C.

Sources & evidence

ORD record
ord-2b2486301d394b88a86e0d2ecdad64b0
Source dataset
uspto-grants-2014_07
Patent number
US08765734B2

Reaction notes

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