Trifluoroacetic acid → 4-[1-(1-Cyclopentylbut-3-en-1-yl)-1H-pyrazol-4-yl]-7H-pyrrolo[2,3-d]pyrimidine trifluoroacetate salt

HRID 41005Notes

Reaction equation

HRID 41005 reaction equation
[CH:1]1([CH:6]([N:10]2[CH:14]=[C:13]([C:15]3[C:16]4[CH:23]=[CH:22][N:21](COCC[Si](C)(C)C)[C:17]=4[N:18]=[CH:19][N:20]=3)[CH:12]=[N:11]2)[CH2:7][CH:8]=[CH2:9])[CH2:5][CH2:4][CH2:3][CH2:2]1.[C:32]([OH:38])([C:34]([F:37])([F:36])[F:35])=[O:33]>C(Cl)Cl>[F:35][C:34]([F:37])([F:36])[C:32]([OH:38])=[O:33].[CH:1]1([CH:6]([N:10]2[CH:14]=[C:13]([C:15]3[C:16]4[CH:23]=[CH:22][NH:21][C:17]=4[N:18]=[CH:19][N:20]=3)[CH:12]=[N:11]2)[CH2:7][CH:8]=[CH2:9])[CH2:5][CH2:4][CH2:3][CH2:2]1

Participants

4

Reactant 2

HCID 6422Trifluoroacetic acidHCID 574780344-[1-(1-Cyclopentylbut-3-en-1-yl)-1H-pyrazol-4-yl]-7-[2-(trimethylsilyl)ethoxy]methyl-7H-pyrrolo[2,3-d]pyrimidine

Product 1

HCID 665977304-[1-(1-Cyclopentylbut-3-en-1-yl)-1H-pyrazol-4-yl]-7H-pyrrolo[2,3-d]pyrimidine trifluoroacetate saltYield 80%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

4-[1-(1-Cyclopentylbut-3-en-1-yl)-1H-pyrazol-4-yl]-7-[2-(trimethylsilyl)ethoxy]methyl-7H-pyrrolo[2,3-d]pyrimidine (13 mg, 0.030 mmol) was dissolved in DCM (3 mL) and TFA (0.5 mL) was added. The resulting solution was stirred at room temperature for 3 hours. The solvent was removed in vacuo. The residue was dissolved in THF (2 mL), and 6 N NaOH (1 mL) was added. The mixture was stirred at room temperature for 1 hour, and then was partitioned between water and ethyl acetate. The organic layer was dried over sodium sulfate and the solvent was removed in vacuo. Purification via preparative-HPLC/MS (C18 eluting with a gradient of H2O and ACN containing 0.1% TFA) afforded the product (10 mg, 80%).

Workup

  1. customThe solvent was removed in vacuo
  2. dissolutionThe residue was dissolved in THF (2 mL)
  3. addition6 N NaOH (1 mL) was added
  4. stirringThe mixture was stirred at room temperature for 1 hour
  5. customwas partitioned between water and ethyl acetate
  6. dry with materialThe organic layer was dried over sodium sulfate
  7. customthe solvent was removed in vacuo
  8. customPurification via preparative-HPLC/MS (C18
  9. washeluting with a gradient of H2O and ACN containing 0.1% TFA)

Sources & evidence

ORD record
ord-1b5bd03ac70f44d9b557761ffe603b69
Source dataset
uspto-grants-2013_09
Patent number
US08530485B2

Reaction notes

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