Diisopropylethylamine → 1-(2-bromo-4-fluorophenyl)-N-[4-({2-[(cyclopropylcarbonyl)amino]imidazo[1,2-a]pyridin-6-yl}oxy)-3-fluorophenyl]-6-methyl-2-oxo-1,2-dihydropyridine-3-carboxamide

HRID 2095920Notes

Reaction equation

HRID 2095920 reaction equation
[NH2:1][C:2]1[CH:23]=[CH:22][C:5]([O:6][C:7]2[CH:8]=[CH:9][C:10]3[N:11]([CH:13]=[C:14]([NH:16][C:17]([CH:19]4[CH2:21][CH2:20]4)=[O:18])[N:15]=3)[CH:12]=2)=[C:4]([F:24])[CH:3]=1.[Br:25][C:26]1[CH:31]=[C:30]([F:32])[CH:29]=[CH:28][C:27]=1[N:33]1[C:38]([CH3:39])=[CH:37][CH:36]=[C:35]([C:40](O)=[O:41])[C:34]1=[O:43].CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.C(N(CC)C(C)C)(C)C>CN(C)C=O>[Br:25][C:26]1[CH:31]=[C:30]([F:32])[CH:29]=[CH:28][C:27]=1[N:33]1[C:38]([CH3:39])=[CH:37][CH:36]=[C:35]([C:40]([NH:1][C:2]2[CH:23]=[CH:22][C:5]([O:6][C:7]3[CH:8]=[CH:9][C:10]4[N:11]([CH:13]=[C:14]([NH:16][C:17]([CH:19]5[CH2:21][CH2:20]5)=[O:18])[N:15]=4)[CH:12]=3)=[C:4]([F:24])[CH:3]=2)=[O:41])[C:34]1=[O:43]

Participants

6

Reactant 4

HCID 81531DiisopropylethylamineHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 58158605N-[6-(4-amino-2-fluorophenoxy)imidazo[1,2-a]pyridin-2-yl]cyclopropanecarboxamideHCID 669685501-(2-Bromo-4-fluorophenyl)-6-methyl-2-oxo-1,2-dihydropyridine-3-carboxylic acid

Product 1

HCID 581585221-(2-bromo-4-fluorophenyl)-N-[4-({2-[(cyclopropylcarbonyl)amino]imidazo[1,2-a]pyridin-6-yl}oxy)-3-fluorophenyl]-6-methyl-2-oxo-1,2-dihydropyridine-3-carboxamideYield 53.5%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

A mixture of N-[6-(4-amino-2-fluorophenoxy)imidazo[1,2-a]pyridin-2-yl]cyclopropanecarboxamide (150 mg, 0.459 mmol), 1-(2-bromo-4-fluorophenyl)-6-methyl-2-oxo-1,2-dihydropyridine-3-carboxylic acid (146 mg, 0.448 mmol), HATU (262 mg, 0.689 mmol), N,N-diisopropylethylamine (160 μl, 0.919 mmol) and N,N-dimethylformamide (3 mL) was stirred at room temperature for 3 days. After dilution with ethyl acetate, the mixture was washed with saturated aqueous sodium hydrogen carbonate solution and saturated brine, dried over anhydrous magnesium sulfate and filtered. The solvent was evaporated under reduced pressure, and the residue was purified by silica gel column chromatography (NH silica gel, 30 g, ethyl acetate/hexane=2/98→100/0) and preparative HPLC (acetonitrile/water=40/60→50/50, containing 0.1% trifluoroacetic acid) to give the title compound (152 mg, 52%) as a white solid.

Workup

  1. washAfter dilution with ethyl acetate, the mixture was washed with saturated aqueous sodium hydrogen carbonate solution and saturated brine
  2. dry with materialdried over anhydrous magnesium sulfate
  3. filtrationfiltered
  4. customThe solvent was evaporated under reduced pressure
  5. customthe residue was purified by silica gel column chromatography (NH silica gel, 30 g, ethyl acetate/hexane=2/98→100/0) and preparative HPLC (acetonitrile/water=40/60→50/50, containing 0.1% trifluoroacetic acid)

Sources & evidence

ORD record
ord-a0c94dd6ecb043ee8ba0d9de30251afd
Source dataset
uspto-grants-2013_05
Patent number
US08445509B2

Reaction notes

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