Lithium Hydroxide → N-(5-bromo-4-fluoro-1H-pyrrolo[2,3-b]pyridin-3-yl)quinoxaline-2-carboxamide

HRID 408263Notes

Reaction equation

HRID 408263 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.[N:13]1[C:22]2[C:17](=[CH:18][CH:19]=[CH:20][CH:21]=2)[N:16]=[CH:15][C:14]=1[C:23](O)=[O:24].C1N(P(Cl)(N2C(=O)OCC2)=O)C(=O)OC1.C(N(CC)CC)C.[Li+].[OH-]>C(Cl)Cl.O>[Br:1][C:2]1[C:3]([F:12])=[C:4]2[C:10]([NH:11][C:23]([C:14]3[CH:15]=[N:16][C:17]4[C:22](=[CH:21][CH:20]=[CH:19][CH:18]=4)[N:13]=3)=[O:24])=[CH:9][NH:8][C:5]2=[N:6][CH:7]=1

Participants

8

Reactant 5

HCID 3939Lithium HydroxideHCID 8471TriethylamineHCID 96695Quinoxaline-2-carboxylic acidHCID 152842Bis(2-oxo-3-oxazolidinyl)phosphinic chlorideHCID 602052765-bromo-4-fluoro-1H-pyrrolo[2,3-b]pyridin-3-amine

Product 1

HCID 60205420N-(5-bromo-4-fluoro-1H-pyrrolo[2,3-b]pyridin-3-yl)quinoxaline-2-carboxamideYield 89.3%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6344DichloromethaneSolvent2×

Procedure

5-Bromo-4-fluoro-1H-pyrrolo[2,3-b]pyridin-3-amine (0.160 g, 0.696 mmol, Example 1, Step H), quinoxaline-2-carboxylic acid (0.254 g, 1.46 mmol), BOP-Cl (0.372 g, 1.46 mmol), and triethylamine (0.352 g, 3.48 mmol) were placed in DCM (5 mL) at room temperature and stirred for 15 hours. 3M aqueous LiOH (3 mL) was then added, and the reaction was stirred for 10 minutes. Water (10 mL) and DCM (10 mL) were then added, and the reaction was filtered. The resulting solid was slurried with 10:1 DCM:MeOH and filtered to give solid N-(5-bromo-4-fluoro-1H-pyrrolo[2,3-b]pyridin-3-yl)quinoxaline-2-carboxamide (0.240 g, 89% yield).

Workup

  1. stirringthe reaction was stirred for 10 minutes
  2. filtrationthe reaction was filtered
  3. filtrationMeOH and filtered

Sources & evidence

ORD record
ord-f08d41c97b024fa5a1e9a2ddfc0a36c9
Source dataset
uspto-grants-2014_06
Patent number
US08758830B2

Reaction notes

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