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

HRID 1923812Notes

Reaction equation

HRID 1923812 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][C:14]1[O:15][CH:16]=[C:17]([C:19](O)=[O:20])[N:18]=1.C(N(CC)CC)C.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:19]([C:17]3[N:18]=[C:14]([CH3:13])[O:15][CH:16]=3)=[O:20])=[CH:9][NH:8][C:5]2=[N:6][CH:7]=1

Participants

8

Reactant 5

HCID 3939Lithium HydroxideHCID 8471TriethylamineHCID 152842Bis(2-oxo-3-oxazolidinyl)phosphinic chlorideHCID 5394042-Methyloxazole-4-carboxylic acidHCID 602052765-bromo-4-fluoro-1H-pyrrolo[2,3-b]pyridin-3-amine

Product 1

HCID 60205461N-(5-bromo-4-fluoro-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-methyloxazole-4-carboxamideYield 56%

Reagents, catalysts & solvents 2

HCID 962WaterSolvent2×HCID 6344DichloromethaneSolvent

Procedure

A mixture of 5-bromo-4-fluoro-1H-pyrrolo[2,3-b]pyridin-3-amine (200 mg, 0.869 mmol, Example 1, Step H), 2-methyloxazole-4-carboxylic acid (276 mg, 2.17 mmol), triethylamine (606 μL, 4.35 mmol), and BOP-Cl (203 mg, 2.17 mmol) in CH2Cl2 (10 mL) was stirred at room temperature for 4 hours. Next, 2M LiOH. H2O (3 mL) was added, and after 30 minutes water (10 mL) was added. The solid formed was filtered, washed with water (2×5 mL) and dried to provide N-(5-bromo-4-fluoro-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-methyloxazole-4-carboxamide (165 mg, 56% yield) as a solid. 1H NMR (400 MHz, (CD3)2SO) δ 12.15 (s, 1H), 9.68 (s, 1H), 8.63 (s, 1H), 8.37 (d, 1H), 7.67 (s, 1H), 2.52 (s, 3H); LCMS (APCI+) m/z 338.9, 341.0 (M+H)+, Retention time=3.21 minutes (Method 2).

Workup

  1. customThe solid formed
  2. filtrationwas filtered
  3. washwashed with water (2×5 mL)
  4. customdried

Sources & evidence

ORD record
ord-981e5a7b0d0c4b32a926d8843b8ab053
Source dataset
uspto-grants-2012_05
Patent number
US08178131B2

Reaction notes

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