Diisopropylethylamine → HCID 58158473, compound

HRID 2095917Notes

Reaction equation

HRID 2095917 reaction equation
[CH3:1][C:2]1[CH:7]=[CH:6][CH:5]=[C:4]([CH3:8])[C:3]=1[N:9]1[CH:14]=[CH:13][CH:12]=[C:11]([C:15]([OH:17])=O)[C:10]1=[O:18].[NH2:19][C:20]1[CH:41]=[CH:40][C:23]([O:24][C:25]2[CH:26]=[CH:27][C:28]3[N:29]([CH:31]=[C:32]([NH:34][C:35]([CH:37]4[CH2:39][CH2:38]4)=[O:36])[N:33]=3)[CH:30]=2)=[C:22]([F:42])[CH:21]=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>CN(C)C=O.C(OCC)(=O)C.O1CCCC1>[CH:37]1([C:35]([NH:34][C:32]2[N:33]=[C:28]3[CH:27]=[CH:26][C:25]([O:24][C:23]4[CH:40]=[CH:41][C:20]([NH:19][C:15]([C:11]5[C:10](=[O:18])[N:9]([C:3]6[C:4]([CH3:8])=[CH:5][CH:6]=[CH:7][C:2]=6[CH3:1])[CH:14]=[CH:13][CH:12]=5)=[O:17])=[CH:21][C:22]=4[F:42])=[CH:30][N:29]3[CH:31]=2)=[O:36])[CH2:38][CH2:39]1

Participants

8

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 21789708HCID 21789708, compoundHCID 58158605N-[6-(4-amino-2-fluorophenoxy)imidazo[1,2-a]pyridin-2-yl]cyclopropanecarboxamide

Product 1

HCID 58158473HCID 58158473, compoundYield 51.2%

Reagents, catalysts & solvents 3

HCID 6228DimethylformamideSolventHCID 8028TetrahydrofuranSolventHCID 8857Ethyl AcetateSolvent

Procedure

1-(2,6-Dimethylphenyl)-2-oxo-1,2-dihydropyridine-3-carboxylic acid (120 mg, 0.51 mmol), N-[6-(4-amino-2-fluorophenoxy)imidazo[1,2-a]pyridin-2-yl]cyclopropanecarboxamide (150 mg, 0.46 mmol) and HATU (340 mg, 0.91 mmol) were suspended in N,N-dimethylformamide (3.0 mL), and N,N-diisopropylethylamine (0.16 mL, 0.92 mmol) was added. After stirring at room temperature overnight, the mixture was diluted with ethyl acetate (5.0 mL) and tetrahydrofuran (5.0 mL). The mixture was washed twice with saturated aqueous sodium hydrogen carbonate solution, and the organic layer was dried over anhydrous sodium sulfate. The solvent was evaporated under reduced pressure, and the residue was purified by silica gel column chromatography (ethyl acetate/hexane=65/35→85/15). The fractions containing the object product were mixed. The solvent was evaporated under reduced pressure, and a small amount of hexane/ethyl acetate was added. The resulting precipitate was collected by filtration to give the title compound (130 mg, 49%) as a white solid.

Workup

  1. washThe mixture was washed twice with saturated aqueous sodium hydrogen carbonate solution
  2. dry with materialthe organic layer was dried over anhydrous sodium sulfate
  3. customThe solvent was evaporated under reduced pressure
  4. customthe residue was purified by silica gel column chromatography (ethyl acetate/hexane=65/35→85/15)
  5. additionThe fractions containing the object product
  6. additionwere mixed
  7. customThe solvent was evaporated under reduced pressure
  8. additiona small amount of hexane/ethyl acetate was added
  9. filtrationThe resulting precipitate was collected by filtration

Sources & evidence

ORD record
ord-938219e59b4e46179ce6193e1c7ef3aa
Source dataset
uspto-grants-2013_05
Patent number
US08445509B2

Reaction notes

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