Methanol → 3-[2,6-difluoro-3-(propane-1-sulfonylamino)-phenyl]-hydroxy-methyl-1H-pyrrolo[2,3-b]pyridine-5-carboxylic acid methyl ester

HRID 1098423Notes

Reaction equation

HRID 1098423 reaction equation
[CH3:1][O:2][C:3]([C:5]1[CH:6]=[C:7]2[CH:13]=[CH:12][NH:11][C:8]2=[N:9][CH:10]=1)=[O:4].[F:14][C:15]1[C:20](C=O)=[C:19]([F:23])[CH:18]=[CH:17][C:16]=1[NH:24][S:25]([CH2:28][CH2:29][CH3:30])(=[O:27])=[O:26].[OH-:31].[K+].O.[CH3:34]O>>[CH3:1][O:2][C:3]([C:5]1[CH:6]=[C:7]2[C:13]([C:20]3[C:19]([F:23])=[CH:18][CH:17]=[C:16]([NH:24][S:25]([CH2:28][CH2:29][CH3:30])(=[O:26])=[O:27])[C:15]=3[F:14])=[C:12]([OH:31])[N:11]([CH3:34])[C:8]2=[N:9][CH:10]=1)=[O:4]

Participants

6

Reactant 5

HCID 887MethanolHCID 962WaterHCID 14797Potassium HydroxideHCID 22832049methyl 1H-pyrrolo[2,3-b]pyridine-5-carboxylateHCID 53419003N-(2,4-Difluoro-3-formylphenyl)-1-propanesulfonamide

Product 1

HCID 666463523-[2,6-difluoro-3-(propane-1-sulfonylamino)-phenyl]-hydroxy-methyl-1H-pyrrolo[2,3-b]pyridine-5-carboxylic acid methyl esterYield 28%

Procedure

To 1H-Pyrrolo[2,3-b]pyridine-5-carboxylic acid methyl ester (532, 155.0 mg, 0.88 mmol) in methanol (15.0 mL) were added propane-1-sulfonic acid (2,4-difluoro-3-formyl-phenyl)-amide (73, 260.0 mg, 0.99 mmol, prepared as described in Example 7) and potassium hydroxide (859 mg, 15.3 mmol) under an atmosphere of nitrogen. The reaction was stirred at room temperature overnight. The reaction was poured into water and extracted with ethyl acetate. The organic layer was dried over anhydrous sodium sulfate and filtered. The filtrate was concentrated and purified by silica gel column chromatography eluting with 20% ethyl acetate in hexane to give the compound as white solid (P-1545, 110 mg, 28%). MS (ESI) [M+H+]+=440.2.

Workup

  1. extractionextracted with ethyl acetate
  2. dry with materialThe organic layer was dried over anhydrous sodium sulfate
  3. filtrationfiltered
  4. concentrationThe filtrate was concentrated
  5. custompurified by silica gel column chromatography
  6. washeluting with 20% ethyl acetate in hexane

Sources & evidence

ORD record
ord-a6fe61d2e6e24d1c87839d7a6ace755f
Source dataset
uspto-grants-2012_03
Patent number
US08143271B2

Reaction notes

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