Cesium carbonate → HCID 53629557, compound

HRID 1175972Notes

Reaction equation

HRID 1175972 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>[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

5

Reactant 3

HCID 10796Cesium carbonateHCID 536296172-(Azetidin-1-ylcarbonyl)-5-bromopyridineHCID 59127124HCID 59127124, compound

Product 1

HCID 53629557HCID 53629557, compoundYield 37.9%

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent

Conditions

Temperature
160 °C

Procedure

A mixture of 3-hydroxy-N-(1-methyl-1H-pyrazol-3-yl)-5-[(3R)-tetrahydrofuran-3-yloxy]benzamide (150 mg, 0.49 mmol), 2-(azetidin-1-ylcarbonyl)-5-bromopyridine (120 mg, 0.49 mmol), bromotris(triphenylphosphine)copper (92 mg, 0.10 mmol) and caesium carbonate (484 mg, 1.48 mmol) in acetonitrile (7 mL) was stirred in a microwave reactor at 160° C. for 6 hours. The solid was filtered off, the solvent was removed in vacuo and ethyl acetate (50 mL) added to the residue. The organic phase was washed with water (10 mL), brine (20 mL), dried (MgSO4), filtered and the solvent removed in vacuo. The residue was chromatographed on silica, eluting with a gradient of 0-10% methanol in DCM, to give the title compound as a white solid (86 mg). 1H NMR δ (CDCl3): 2.10-2.17 (m, 1H), 2.19-2.25 (m, 1H), 2.32-2.38 (m, 2H), 3.76 (s, 3H), 3.87-3.92 (m, 1H), 3.95-4.01 (m, 3H), 4.24 (t, 2H), 4.71 (t, 2H), 4.97 (t, 1H), 6.73 (t, 1H), 6.81 (s, 1H), 7.11 (s, 1H), 7.24 (s, 1H), 7.27-7.30 (m, 1H), 7.36-7.39 (m, 1H), 8.12 (d, 1H), 8.31 (d, 1H), 8.72 (s, 1H); 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 (10 mL), brine (20 mL)
  5. dry with materialdried (MgSO4)
  6. filtrationfiltered
  7. customthe solvent removed in vacuo
  8. customThe residue was chromatographed on silica
  9. washeluting with a gradient of 0-10% methanol in DCM

Sources & evidence

ORD record
ord-7100224300df48ebadf7d4e648258aed
Source dataset
uspto-grants-2010_11
Patent number
US07842694B2

Reaction notes

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