Lithium Hydroxide → N-(5-bromo-4-fluoro-1H-pyrrolo[2,3-b]pyridin-3-yl)-1-methyl-6-oxo-1,6-dihydropyridazine-3-carboxamide

HRID 1034744Notes

Reaction equation

HRID 1034744 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][N:14]1[C:19](=[O:20])[CH:18]=[CH:17][C:16]([C:21](O)=[O:22])=[N:15]1.C1N(P(Cl)(N2C(=O)OCC2)=O)C(=O)OC1.[Li+].[OH-]>C(Cl)Cl.O>[Br:1][C:2]1[C:3]([F:12])=[C:4]2[C:10]([NH:11][C:21]([C:16]3[CH:17]=[CH:18][C:19](=[O:20])[N:14]([CH3:13])[N:15]=3)=[O:22])=[CH:9][NH:8][C:5]2=[N:6][CH:7]=1

Participants

7

Reactant 4

HCID 3939Lithium HydroxideHCID 152842Bis(2-oxo-3-oxazolidinyl)phosphinic chlorideHCID 23666951-Methyl-6-oxo-1,6-dihydropyridazine-3-carboxylic acidHCID 602052765-bromo-4-fluoro-1H-pyrrolo[2,3-b]pyridin-3-amine

Product 1

HCID 60205412N-(5-bromo-4-fluoro-1H-pyrrolo[2,3-b]pyridin-3-yl)-1-methyl-6-oxo-1,6-dihydropyridazine-3-carboxamideYield 70%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6344DichloromethaneSolvent

Procedure

TEA (0.61 mL, 4.35 mmol) was added to 5-bromo-4-fluoro-1H-pyrrolo[2,3-b]pyridin-3-amine. (0.20 g, 0.87 mmol, Example 1, Step H), 1-methyl-6-oxo-1,6-dihydropyridazine-3-carboxylic acid (0.16 g, 1.04 mmol) and BOP—Cl (0.29 g, 1.13 mmol) in DCM (5 mL). The reaction was stirred at room temperature for 1 hour, and then a LiOH solution (3 mL, 2N) was added. The mixture was stirred for 30 minutes, and water (10 mL) was added. The solid formed was collected by filtration, washed with DCM (5 mL) and dried to give N-(5-bromo-4-fluoro-1H-pyrrolo[2,3-b]pyridin-3-yl)-1-methyl-6-oxo-1,6-dihydropyridazine-3-carboxamide (0.223 g, 70% yield) as a solid.

Workup

  1. stirringThe mixture was stirred for 30 minutes
  2. customThe solid formed
  3. filtrationwas collected by filtration
  4. washwashed with DCM (5 mL)
  5. customdried

Sources & evidence

ORD record
ord-471e8967d6284b4ca3f5c95b59ef408c
Source dataset
uspto-grants-2013_10
Patent number
US08545897B2

Reaction notes

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