Diisopropylethylamine → HCID 58158543, compound

HRID 2095965Notes

Reaction equation

HRID 2095965 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.[F:25][C:26]1[CH:27]=[C:28]([C:32]2[C:33]([CH3:42])=[CH:34][CH:35]=[C:36]([C:39](O)=[O:40])[N+:37]=2[O-:38])[CH:29]=[CH:30][CH:31]=1.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.C(=O)([O-])O.[Na+]>CN(C)C=O.O1CCCC1>[CH:19]1([C:17]([NH:16][C:14]2[N:15]=[C:10]3[CH:9]=[CH:8][C:7]([O:6][C:5]4[CH:22]=[CH:23][C:2]([NH:1][C:39]([C:36]5[N+:37]([O-:38])=[C:32]([C:28]6[CH:29]=[CH:30][CH:31]=[C:26]([F:25])[CH:27]=6)[C:33]([CH3:42])=[CH:34][CH:35]=5)=[O:40])=[CH:3][C:4]=4[F:24])=[CH:12][N:11]3[CH:13]=2)=[O:18])[CH2:21][CH2:20]1

Participants

8

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 58158605N-[6-(4-amino-2-fluorophenoxy)imidazo[1,2-a]pyridin-2-yl]cyclopropanecarboxamideHCID 66968820HCID 66968820, compound

Product 1

HCID 58158543HCID 58158543, compoundYield 75%

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 8028TetrahydrofuranSolvent

Procedure

A solution (5 mL) of N-[6-(4-amino-2-fluorophenoxy)imidazo[1,2-a]pyridin-2-yl]cyclopropanecarboxamide (196 mg, 0.60 mmol), 6-(3-fluorophenyl)-5-methylpyridine-2-carboxylic acid 1-oxide (178 mg, 0.72 mmol), HATU (273 mg, 0.72 mmol) and N,N-diisopropylethylamine (155 mg, 1.20 mmol) in N,N-dimethylformamide was stirred at room temperature for 5 hr. The reaction solution was divided into two layers with tetrahydrofuran and sodium hydrogen carbonate saturated aqueous solution and the aqueous layer was subjected to extraction (3 times) with ethyl acetate. The combined organic layer was washed with water 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 (basic silica) and recrystallized from ethanol/water to give the title compound (250 mg, 75%) as a white solid.

Workup

  1. extractionthe aqueous layer was subjected to extraction (3 times) with ethyl acetate
  2. washThe combined organic layer was washed with water and saturated brine
  3. dry with materialdried over anhydrous magnesium sulfate
  4. filtrationfiltered
  5. customThe solvent was evaporated under reduced pressure
  6. customthe residue was purified by silica gel column chromatography (basic silica)
  7. customrecrystallized from ethanol/water

Sources & evidence

ORD record
ord-1f2dfa5856ab4c82aa4087bd1e111d6f
Source dataset
uspto-grants-2013_05
Patent number
US08445509B2

Reaction notes

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