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Water → N-{2-fluoro-3-[hydroxy-(5H-pyrrolo[2,3-b]pyrazin-7-yl)-methyl]-phenyl}-4-trifluoromethyl-benzenesulfonamide

HRID 1639598
Notes
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Reaction equation

HRID 1639598 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]([C:14]1[CH:19]=[CH:18][C:17]([C:20]([F:23])([F:22])[F:21])=[CH:16][CH:15]=1)(=[O:13])=[O:12].[N:24]1[CH:29]=[CH:28][N:27]=[C:26]2[NH:30][CH:31]=[CH:32][C:25]=12.[OH-].[K+].O>CO>[F:1][C:2]1[C:7]([CH:8]([OH:9])[C:32]2[C:25]3[C:26](=[N:27][CH:28]=[CH:29][N:24]=3)[NH:30][CH:31]=2)=[CH:6][CH:5]=[CH:4][C:3]=1[NH:10][S:11]([C:14]1[CH:19]=[CH:18][C:17]([C:20]([F:23])([F:21])[F:22])=[CH:16][CH:15]=1)(=[O:13])=[O:12]
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

6

Reactant 4

HCID 962WaterHCID 14797Potassium HydroxideHCID 53708035H-Pyrrolo[2,3-b]pyrazineHCID 57963257N-(2-fluoro-3-formyl-phenyl)-4-trifluoromethyl-benzenesulfonamide

Product 1

HCID 58001697N-{2-fluoro-3-[hydroxy-(5H-pyrrolo[2,3-b]pyrazin-7-yl)-methyl]-phenyl}-4-trifluoromethyl-benzenesulfonamideYield 69%

Reagents, catalysts & solvents

1
HCID 887MethanolSolvent

Procedure

To N-(2-fluoro-3-formyl-phenyl)-4-trifluoromethyl-benzenesulfonamide (26, 162 mg, 0.47 mmol) in 1 mL of methanol, 5H-pyrrolo[2,3-b]pyrazine (3, 67 mg, 0.56 mmol) and potassium hydroxide (79 mg, 1.4 mmol) were added under an atmosphere of nitrogen. The reaction was stirred at room temperature for 24 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 70% ethyl acetate in hexane. Appropriate fractions were combined and concentrated under vacuum to provide the desired compound as a solid (27, 150 mg, 69%). MS (ESI) [M+H+]+=465.4.

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 70% ethyl acetate in hexane
  8. concentrationconcentrated under vacuum

Sources & evidence

ORD record
ord-e6ba0272e4774e77807471308e427ed8
Source dataset
uspto-grants-2012_02
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08110576B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes