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Diisopropylethylamine → N-[5-({2-[(cyclopropylcarbonyl)amino]imidazo[1,2-a]pyridin-6-yl}oxy)pyridin-2-yl]-6-(4-fluorophenyl)-5-methylpyridine-2-carboxamide 1-oxide

HRID 2095936
Notes
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Reaction equation

HRID 2095936 reaction equation
[NH2:1][C:2]1[N:7]=[CH:6][C:5]([O:8][C:9]2[CH:10]=[CH:11][C:12]3[N:13]([CH:15]=[C:16]([NH:18][C:19]([CH:21]4[CH2:23][CH2:22]4)=[O:20])[N:17]=3)[CH:14]=2)=[CH:4][CH:3]=1.[F:24][C:25]1[CH:30]=[CH:29][C:28]([C:31]2[C:32]([CH3:41])=[CH:33][CH:34]=[C:35]([C:38](O)=[O:39])[N+:36]=2[O-:37])=[CH:27][CH:26]=1.C(N(CC)C(C)C)(C)C.CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.C(=O)([O-])O.[Na+]>CN(C)C=O.O1CCCC1.C(OCC)(=O)C>[CH:21]1([C:19]([NH:18][C:16]2[N:17]=[C:12]3[CH:11]=[CH:10][C:9]([O:8][C:5]4[CH:4]=[CH:3][C:2]([NH:1][C:38]([C:35]5[N+:36]([O-:37])=[C:31]([C:28]6[CH:29]=[CH:30][C:25]([F:24])=[CH:26][CH:27]=6)[C:32]([CH3:41])=[CH:33][CH:34]=5)=[O:39])=[N:7][CH:6]=4)=[CH:14][N:13]3[CH:15]=2)=[O:20])[CH2:22][CH2:23]1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

9

Reactant 5

HCID 81531DiisopropylethylamineHCID 516892Sodium BicarbonateHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 58158570N-{6-[(6-aminopyridin-3-yl)oxy]imidazo[1,2-a]pyridin-2-yl}cyclopropanecarboxamideHCID 581586416-Carboxy-2-(4-fluorophenyl)-3-methylpyridin-1-ium-1-olate

Product

1
HCID 44595040N-[5-({2-[(cyclopropylcarbonyl)amino]imidazo[1,2-a]pyridin-6-yl}oxy)pyridin-2-yl]-6-(4-fluorophenyl)-5-methylpyridine-2-carboxamide 1-oxideYield 80.5%

Reagents, catalysts & solvents 3

HCID 6228DimethylformamideSolventHCID 8028TetrahydrofuranSolventHCID 8857Ethyl AcetateSolvent

Procedure

To a solution of N-{6-[(6-aminopyridin-3-yl)oxy]imidazo[1,2-a]pyridin-2-yl}cyclopropanecarboxamide (100 mg, 0.323 mmol) and 6-(4-fluorophenyl)-5-methylpyridine-2-carboxylic acid 1-oxide (103.8 mg, 0.42 mmol) in N,N-dimethylformamide (1 mL) were added N,N-diisopropylethylamine (111 μL, 0.646 mmol) and HATU (160 mg, 0.42 mmol), and the mixture was stirred at room temperature for 4 hr. Ethyl acetate, tetrahydrofuran and saturated aqueous sodium hydrogen carbonate solution were added to the reaction mixture, and the mixture was extracted 3 times with ethyl acetate. The organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate and filtered, and the solvent was evaporated under reduced pressure. The obtained residue was washed with ethyl acetate and collected by filtration to give the title compound (140 mg, 80%) as a slightly yellow solid.

Workup

  1. extractionthe mixture was extracted 3 times with ethyl acetate
  2. washThe organic layer was washed with saturated brine
  3. dry with materialdried over anhydrous magnesium sulfate
  4. filtrationfiltered
  5. customthe solvent was evaporated under reduced pressure
  6. washThe obtained residue was washed with ethyl acetate
  7. filtrationcollected by filtration

Sources & evidence

ORD record
ord-06eb2448336942f3a0ba8ae99dd0b87d
Source dataset
uspto-grants-2013_05
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08445509B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes