(3R)-3-Aminopiperidine, 3-BOC protected → (R)-tert-butyl 1-(5-bromo-3-(2-methoxyacetamido)-1H-pyrrolo[2,3-b]pyridin-4-yl)piperidin-3-ylcarbamate

HRID 875708Notes

Reaction equation

HRID 875708 reaction equation
[Br:1][C:2]1[C:3](F)=[C:4]2[C:10]([NH:11][C:12](=[O:16])[CH2:13][O:14][CH3:15])=[CH:9][NH:8][C:5]2=[N:6][CH:7]=1.[NH:18]1[CH2:23][CH2:22][CH2:21][C@@H:20]([NH:24][C:25](=[O:31])[O:26][C:27]([CH3:30])([CH3:29])[CH3:28])[CH2:19]1>CCCCO>[Br:1][C:2]1[C:3]([N:18]2[CH2:23][CH2:22][CH2:21][C@@H:20]([NH:24][C:25](=[O:31])[O:26][C:27]([CH3:29])([CH3:28])[CH3:30])[CH2:19]2)=[C:4]2[C:10]([NH:11][C:12](=[O:16])[CH2:13][O:14][CH3:15])=[CH:9][NH:8][C:5]2=[N:6][CH:7]=1

Participants

4

Reactant 2

HCID 1514172(3R)-3-Aminopiperidine, 3-BOC protectedHCID 60205365N-(5-bromo-4-fluoro-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-methoxyacetamide

Product 1

HCID 67045801(R)-tert-butyl 1-(5-bromo-3-(2-methoxyacetamido)-1H-pyrrolo[2,3-b]pyridin-4-yl)piperidin-3-ylcarbamateYield 35.2%

Reagents, catalysts & solvents 1

HCID 2631-ButanolSolvent

Procedure

N-(5-Bromo-4-fluoro-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-methoxyacetamide (100 mg, 0.3 mmol) and (R)-tert-butyl piperidin-3-ylcarbamate (199 mg, 1.0 mmol) in n-BuOH (4 mL) were heated to 160° C. for 18 hours in a sealed tube. After concentration, the residue was purified by C-18 reverse phase flash chromatography (Biotage SP4 unit, C-18 25M column, 10-90% CH3CN/water gradient; 30 CV) to yield (R)-tert-butyl 1-(5-bromo-3-(2-methoxyacetamido)-1H-pyrrolo[2,3-b]pyridin-4-yl)piperidin-3-ylcarbamate (51 mg, 32% yield) as a solid.

Workup

  1. concentrationAfter concentration
  2. customthe residue was purified by C-18 reverse phase flash chromatography (Biotage SP4 unit

Sources & evidence

ORD record
ord-55d601709c244da786da01f00859a547
Source dataset
uspto-grants-2015_03
Patent number
US08981085B2

Reaction notes

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