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

HRID 1817652Notes

Reaction equation

HRID 1817652 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][C:8]#[CH: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][C:8]#[CH:9])[CH2:5][CH2:4][CH2:3][CH2:2]1

Participants

4

Reactant 2

HCID 6422Trifluoroacetic acidHCID 574781104-[1-(1-Cyclopentylbut-3-yn-1-yl)-1H-pyrazol-4-yl]-7-[2-(trimethylsilyl)ethoxy]methyl-7H-pyrrolo[2,3-d]pyrimidine

Product 1

HCID 866130134-[1-(1-Cyclopentylbut-3-yn-1-yl)-1H-pyrazol-4-yl]-7H-pyrrolo[2,3-d]pyrimidine trifluoro-acetate saltYield 60%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

A solution of 4-[1-(1-cyclopentylbut-3-yn-1-yl)-1H-pyrazol-4-yl]-7-[2-(trimethylsilyl)-ethoxy]methyl-7H-pyrrolo[2,3-d]pyrimidine (52 mg, 0.12 mmol) in DCM (3 mL) and TFA (1 mL) was stirred for 2 hours. The solvents were removed in vacuo. The resulting residue was dissolved in THF (3 mL) and 6N NaOH (2 mL) was added. After stirring for 1 hour, the mixture 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 product (30 mg, 60%).

Workup

  1. customThe solvents were removed in vacuo
  2. dissolutionThe resulting residue was dissolved in THF (3 mL)
  3. addition6N NaOH (2 mL) was added
  4. customthe mixture was partitioned between water and ethyl acetate
  5. dry with materialThe organic layer was dried over sodium sulfate
  6. customthe solvent was removed in vacuo
  7. customPurification via preparative-HPLC/MS (C18
  8. washeluting with a gradient of H2O and ACN containing 0.1% TFA)

Sources & evidence

ORD record
ord-40cad161ea184f388061ea599e17f9a6
Source dataset
uspto-grants-2009_10
Patent number
US07598257B2

Reaction notes

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