Triethylamine → (S)-N-(5-bromo-4-fluoro-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-methoxypropanamide

HRID 1034901Notes

Reaction equation

HRID 1034901 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.[CH3:13][O:14][C@@H:15]([CH3:19])[C:16](N)=[O:17].C1N(P(Cl)(N2C(=O)OCC2)=O)C(=O)OC1.C(N(CC)CC)C>C(Cl)Cl.CC#N.O.O>[Br:1][C:2]1[C:3]([F:12])=[C:4]2[C:10]([NH:11][C:16](=[O:17])[C@@H:15]([O:14][CH3:13])[CH3:19])=[CH:9][NH:8][C:5]2=[N:6][CH:7]=1

Participants

8

Reactant 4

HCID 8471TriethylamineHCID 152842Bis(2-oxo-3-oxazolidinyl)phosphinic chlorideHCID 2733586(S)-(-)-2-MethoxypropionamideHCID 602052765-bromo-4-fluoro-1H-pyrrolo[2,3-b]pyridin-3-amine

Product 1

HCID 60205368(S)-N-(5-bromo-4-fluoro-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-methoxypropanamideYield 87.5%

Reagents, catalysts & solvents 3

HCID 962WaterSolventHCID 6344DichloromethaneSolventHCID 18373917Acetonitrile--water (1/1)Solvent

Procedure

5-Bromo-4-fluoro-1H-pyrrolo[2,3-b]pyridin-3-amine (0.5 g, 2.17 mmol; Example 1, Step H), (S)-2-methoxypropanamide (0.471 g, 4.56 mmol), BOP—Cl (1.16 g, 4.56 mmol), and triethylamine (1.51 mL, 10.9 mmol) were placed in DCM (10 mL) and stirred for 18 hours at room temperature, then poured into water, and extracted with DCM. The combined organic fractions were dried (MgSO4), filtered, and concentrated to give the crude product, which was purified by reverse phase chromatography (Biotage SP4, C-18 25M+, 5-95% CH3CN/water) to give (S)—N-(5-bromo-4-fluoro-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-methoxypropanamide (0.6 g, 87% yield).

Workup

  1. extractionextracted with DCM
  2. dry with materialThe combined organic fractions were dried (MgSO4)
  3. filtrationfiltered
  4. concentrationconcentrated
  5. customto give the crude product, which
  6. customwas purified by reverse phase chromatography (Biotage SP4

Sources & evidence

ORD record
ord-f9de638b44444a1bb75526d3812da9cf
Source dataset
uspto-grants-2013_10
Patent number
US08545897B2

Reaction notes

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