Hydrochloric Acid → {2,4-difluoro-3-[hydroxy-(1H-pyrrolo[2,3-b]pyridin-3-yl)-methyl]-phenyl}-carbamic acid benzyl ester

HRID 1098446Notes

Reaction equation

HRID 1098446 reaction equation
Cl[C:2]1[CH:3]=[C:4]2[CH:10]=[CH:9][NH:8][C:5]2=[N:6][CH:7]=1.CO.[OH-].[K+].[CH2:15]([O:22][C:23](=[O:35])[NH:24][C:25]1[CH:30]=[CH:29][C:28]([F:31])=[C:27]([CH:32]=[O:33])[C:26]=1[F:34])[C:16]1[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=1.Cl>>[CH2:15]([O:22][C:23](=[O:35])[NH:24][C:25]1[CH:30]=[CH:29][C:28]([F:31])=[C:27]([CH:32]([OH:33])[C:10]2[C:4]3[C:5](=[N:6][CH:7]=[CH:2][CH:3]=3)[NH:8][CH:9]=2)[C:26]=1[F:34])[C:16]1[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=1

Participants

6

Reactant 5

HCID 313Hydrochloric AcidHCID 887MethanolHCID 14797Potassium HydroxideHCID 242292135-Chloro-1H-pyrrolo[2,3-b]pyridineHCID 58086235Benzyl (2,4-difluoro-3-formylphenyl)carbamate

Product 1

HCID 66679278{2,4-difluoro-3-[hydroxy-(1H-pyrrolo[2,3-b]pyridin-3-yl)-methyl]-phenyl}-carbamic acid benzyl esterYield 50.6%

Procedure

Into a round bottom flask was added 5-chloro-1H-pyrrolo[2,3-b]pyridine (80, 0.524 g, 3.43 mmol, prepared as described in Example 9) in methanol (5.00 mL, 0.123 mol). Potassium hydroxide (0.800 g, 14.2 mmol) and (2,4-difluoro-3-formyl-phenyl)-carbamic acid benzyl ester (614, 1.02 g, 3.5 mmol) were added and the reaction mixture was stirred overnight. The reaction mixture was poured into 1N HCl and extracted with ethyl acetate. The organic layer was washed with brine, dried over sodium sulfate, concentrated and crystallized from ethyl acetate to give compound 615 (710 mg, 46%). MS (ESI) [M+H+]+=444.

Workup

  1. extractionextracted with ethyl acetate
  2. washThe organic layer was washed with brine
  3. dry with materialdried over sodium sulfate
  4. concentrationconcentrated
  5. customcrystallized from ethyl acetate

Sources & evidence

ORD record
ord-b0c02d87b4f245c08069362e1db45fcc
Source dataset
uspto-grants-2012_03
Patent number
US08143271B2

Reaction notes

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