Water → propane-1-sulfonic acid {2-fluoro-3-[hydroxy-(5H-pyrrolo[2,3-b]pyrazin-7-yl)-methyl]-phenyl}-amide

HRID 1639591Notes

Reaction equation

HRID 1639591 reaction equation
[F:1][C:2]1[C:7]([CH:8]=[O:9])=[CH:6][CH:5]=[CH:4][C:3]=1[NH:10][S:11]([CH2:14][CH2:15][CH3:16])(=[O:13])=[O:12].[N:17]1[CH:22]=[CH:21][N:20]=[C:19]2[NH:23][CH:24]=[CH:25][C:18]=12.[OH-].[K+].O>CO>[F:1][C:2]1[C:7]([CH:8]([OH:9])[C:25]2[C:18]3[C:19](=[N:20][CH:21]=[CH:22][N:17]=3)[NH:23][CH:24]=2)=[CH:6][CH:5]=[CH:4][C:3]=1[NH:10][S:11]([CH2:14][CH2:15][CH3:16])(=[O:13])=[O:12]

Participants

6

Reactant 4

HCID 962WaterHCID 14797Potassium HydroxideHCID 53708035H-Pyrrolo[2,3-b]pyrazineHCID 58086814Propane-1-sulfonic acid (2-fluoro-3-formyl-phenyl)-amide

Product 1

HCID 58001698propane-1-sulfonic acid {2-fluoro-3-[hydroxy-(5H-pyrrolo[2,3-b]pyrazin-7-yl)-methyl]-phenyl}-amideYield 49%

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Procedure

To propane-1-sulfonic acid (2-fluoro-3-formyl-phenyl)-amide (18, 50 mg, 0.42 mmol) in 0.8 mL of methanol, 5H-pyrrolo[2,3-b]pyrazine (3, 103 mg, 0.42 mmol) and potassium hydroxide (71 mg, 1.3 mmol) were added under an atmosphere of nitrogen. The reaction was stirred at room temperature for 48 hours, then poured into water and extracted with ethyl acetate. The organic layer was washed with brine, dried over sodium sulfate, filtered and the filtrate concentrated under vacuum. The resulting material was purified by silica gel column chromatography eluting with 60% ethyl acetate in dichloromethane. Appropriate fractions were combined and concentrated under vacuum to provide the desired compound as a solid (19, 74 mg, 49%). MS (ESI) [M−H+]−=363.5.

Workup

  1. extractionextracted with ethyl acetate
  2. washThe organic layer was washed with brine
  3. dry with materialdried over sodium sulfate
  4. filtrationfiltered
  5. concentrationthe filtrate concentrated under vacuum
  6. customThe resulting material was purified by silica gel column chromatography
  7. washeluting with 60% ethyl acetate in dichloromethane
  8. concentrationconcentrated under vacuum

Sources & evidence

ORD record
ord-851285fb3ca945689f3e52db34a97085
Source dataset
uspto-grants-2012_02
Patent number
US08110576B2

Reaction notes

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