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

HRID 1261061Notes

Reaction equation

HRID 1261061 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-fa4d68a0452a4d89ad4501f7fbbb9de9
Source dataset
uspto-grants-2013_06
Patent number
US08470818B2

Reaction notes

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