Water → HCID 60205455, compound

HRID 1923811Notes

Reaction equation

HRID 1923811 reaction equation
[Br:1][C:2]1[C:3]([F:12])=[C:4]2[C:10]([NH2:11])=[CH:9][NH:8][C:5]2=[N:6][CH:7]=1.[CH2:13]([CH:15]([CH2:19][CH3:20])[C:16](Cl)=[O:17])[CH3:14].[Li+].[OH-].O>N1C=CC=CC=1>[Br:1][C:2]1[C:3]([F:12])=[C:4]2[C:10]([NH:11][C:16](=[O:17])[CH:15]([CH2:19][CH3:20])[CH2:13][CH3:14])=[CH:9][NH:8][C:5]2=[N:6][CH:7]=1

Participants

6

Reactant 4

HCID 962WaterHCID 3939Lithium HydroxideHCID 759542-Ethylbutyryl chlorideHCID 602052765-bromo-4-fluoro-1H-pyrrolo[2,3-b]pyridin-3-amine

Product 1

HCID 60205455HCID 60205455, compoundYield 82.4%

Reagents, catalysts & solvents 1

HCID 1049PyridineSolvent

Procedure

A solution of 5-bromo-4-fluoro-1H-pyrrolo[2,3-b]pyridin-3-amine (200 mg, 0.869 mmol, Example 1, Step H) in pyridine at 0° C. was treated dropwise with 2-ethylbutanoyl chloride (176 mg, 1.30 mmol). After 7 hours, 2M LiOH (5 mL) was added to the mixture and stirring was continued at room temperature for 30 minutes. Water (25 mL) was then added, and the solid formed was filtered, washed with water (3×5 mL) and dried to provide N-(5-bromo-4-fluoro-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-ethylbutanamide (235 mg, 82% yield) as a solid. 1H NMR (400 MHz, (CD3)2SO) δ 12.06 (s, 1H), 9.46 (s, 1H), 8.34 (d, 1H), 7.53 (s, 1H), 2.30-2.24 (m, 1H), 1.62-1.52 (m, 2H), 1.47-1.41 (m, 2H), 0.90 (t, 6H); LCMS (APCI+) m/z 328, 330 (M+H)+, Retention time=3.20 minutes (Method 2).

Workup

  1. waitwas continued at room temperature for 30 minutes
  2. customthe solid formed
  3. filtrationwas filtered
  4. washwashed with water (3×5 mL)
  5. customdried

Sources & evidence

ORD record
ord-e6fe0406eb744202b4a057705da6af96
Source dataset
uspto-grants-2012_05
Patent number
US08178131B2

Reaction notes

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