Cesium carbonate → 3-{[6-(azetidin-1-ylcarbonyl)pyridin-3-yl]oxy}-N-(1-methyl-1H-pyrazol-3-yl)-5-[(3S)-tetrahydrofuran-3-yloxy]benzamide

HRID 1990197Notes

Reaction equation

HRID 1990197 reaction equation
[OH:1][C:2]1[CH:3]=[C:4]([CH:14]=[C:15]([O:17][C@H:18]2[CH2:22][CH2:21][O:20][CH2:19]2)[CH:16]=1)[C:5]([NH:7][C:8]1[CH:12]=[CH:11][N:10]([CH3:13])[N:9]=1)=[O:6].[N:23]1([C:27]([C:29]2[CH:34]=[CH:33][C:32](Br)=[CH:31][N:30]=2)=[O:28])[CH2:26][CH2:25][CH2:24]1.C(=O)([O-])[O-].[Cs+].[Cs+]>C(#N)C.C1C=CC(P(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.C1C=CC(P(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.C1C=CC(P(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.[Cu]Br>[N:23]1([C:27]([C:29]2[N:30]=[CH:31][C:32]([O:1][C:2]3[CH:3]=[C:4]([CH:14]=[C:15]([O:17][C@H:18]4[CH2:22][CH2:21][O:20][CH2:19]4)[CH:16]=3)[C:5]([NH:7][C:8]3[CH:12]=[CH:11][N:10]([CH3:13])[N:9]=3)=[O:6])=[CH:33][CH:34]=2)=[O:28])[CH2:26][CH2:25][CH2:24]1

Participants

6

Reactant 3

HCID 10796Cesium carbonateHCID 536296172-(Azetidin-1-ylcarbonyl)-5-bromopyridineHCID 59127171HCID 59127171, compound

Product 1

HCID 160397263-{[6-(azetidin-1-ylcarbonyl)pyridin-3-yl]oxy}-N-(1-methyl-1H-pyrazol-3-yl)-5-[(3S)-tetrahydrofuran-3-yloxy]benzamideYield 48.1%

Reagents, catalysts & solvents 2

HCID 11251615Bromotris(triphenylphosphine)copper(I)CatalystHCID 6342AcetonitrileSolvent

Conditions

Temperature
160 °C

Procedure

A mixture of 3-hydroxy-N-(1-methyl-1H-pyrazol-3-yl)-5-[(3S)-tetrahydrofuran-3-yloxy]benzamide (80 mg, 0.26 mmol), 2-(azetidin-1-ylcarbonyl)-5-bromopyridine (64 mg, 0.26 mmol), bromotris(triphenylphosphine)copper(I) (49 mg, 0.05 mmol) and caesium carbonate (257 mg, 0.78 mmol) in acetonitrile (3 mL) was stirred in a Smith Creator microwave at 160° C. for 6 hours. The solid was filtered off and the solvent was removed in vacuo and ethyl acetate (50 mL) added to the residue. The organic phase was washed with water (20 mL), brine (50 mL), dried (MgSO4), filtered and the solvent removed in vacuo to give a yellow oil which was chromatographed on silica, eluting with a gradient of 0-10% methanol in DCM, to give the title compound as a colourless solid (58 mg). This compound was crystallised from ethyl acetate and isohexane using vapour diffusion techniques. 1H NMR δ (CDCl3): 2.11-2.17 (1H, m), 2.20-2.29 (1H, m), 2.32-2.39 (2H, m), 3.78 (3H, s), 3.88-3.93 (1H, m), 3.96-4.02 (3H, m), 4.25 (2H, t), 4.71 (2H, t), 4.97 (1H, t), 6.73 (1H, t), 6.79 (1H, s), 7.11 (1H, s), 7.22 (1H, s), 7.27-7.30 (1H, m), 7.36-7.39 (1H, m), 8.12 (1H, d), 8.32 (1H, d), 8.73 (1H, s); m/z 464 (M+H)+.

Workup

  1. filtrationThe solid was filtered off
  2. customthe solvent was removed in vacuo and ethyl acetate (50 mL)
  3. additionadded to the residue
  4. washThe organic phase was washed with water (20 mL), brine (50 mL)
  5. dry with materialdried (MgSO4)
  6. filtrationfiltered
  7. customthe solvent removed in vacuo
  8. customto give a yellow oil which
  9. customwas chromatographed on silica
  10. washeluting with a gradient of 0-10% methanol in DCM

Sources & evidence

ORD record
ord-48ee302b68c04870b0aa22507a865dfe
Source dataset
uspto-grants-2010_01
Patent number
US07642259B2

Reaction notes

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