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Methane → 1-[7-bromo-2-(2-methoxyethyl)-1H-imidazo[4,5-c][1,5]naphthyridin-1-yl]-2-methylpropan-2-ol

HRID 598034
Notes
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Reaction equation

HRID 598034 reaction equation
Cl.[Br:2][C:3]1[CH:12]=[C:11]2[C:6]([C:7]([NH:20][CH2:21][C:22]([OH:25])([CH3:24])[CH3:23])=[C:8]([NH:13][C:14](=O)[CH2:15][CH2:16][O:17][CH3:18])[CH:9]=[N:10]2)=[N:5][CH:4]=1.C(=O)([O-])[O-].[K+].[K+].O.C>C(Cl)(Cl)Cl.CO.C(O)C>[Br:2][C:3]1[CH:4]=[N:5][C:6]2[C:7]3[N:20]([CH2:21][C:22]([CH3:24])([OH:25])[CH3:23])[C:14]([CH2:15][CH2:16][O:17][CH3:18])=[N:13][C:8]=3[CH:9]=[N:10][C:11]=2[CH:12]=1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

7

Reactant 4

HCID 297MethaneHCID 962WaterHCID 11430Potassium CarbonateHCID 67052276N-{7-bromo-4-[(2-hydroxy-2-methylpropyl)amino][1,5]naphthyridin-3-yl}-3-methoxypropionamide hydrochloride

Product 1

HCID 670525301-[7-bromo-2-(2-methoxyethyl)-1H-imidazo[4,5-c][1,5]naphthyridin-1-yl]-2-methylpropan-2-olYield 73.6%

Reagents, catalysts & solvents

2
HCID 702EthanolSolventHCID 21584188Chloroform methanolSolvent

Procedure

A mixture of N-{7-bromo-4-[(2-hydroxy-2-methylpropyl)amino][1,5]naphthyridin-3-yl}-3-methoxypropionamide hydrochloride (60.00 g, 138 mmol), potassium carbonate (60 g), water (300 mL), and ethanol (900 mL) was heated at reflux for 16 hours and then concentrated under reduced pressure. The precipitated solid was isolated by filtration, washed sequentially with water and methanol, and dried to provide a brown solid. This material was dissolved in a 3/1 mixture of chloroform/methanol and decolorized with activated charcoal to provide 38.5 g of 1-[7-bromo-2-(2-methoxyethyl)-1H-imidazo[4,5-c][1,5]naphthyridin-1-yl]-2-methylpropan-2-ol as a white solid, mp 125° C. Anal. calcd for C16H19BrN4O2: % C, 50.67; % H, 5.05; % N, 14.77; Found: % C, 50.86; % H 4.94; % N, 15.01.

Workup

  1. temperaturewas heated
  2. temperatureat reflux for 16 hours
  3. concentrationconcentrated under reduced pressure
  4. customThe precipitated solid was isolated by filtration
  5. washwashed sequentially with water and methanol
  6. customdried
  7. customto provide a brown solid

Sources & evidence

ORD record
ord-e8d15552fb994b4aa9f9580d693a6a65
Source dataset
uspto-grants-2011_03
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US07897609B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes