Pyrazole → HCID 68485174, compound

HRID 383289Notes

Reaction equation

HRID 383289 reaction equation
Cl[C:2]1[CH:7]=[C:6]([C:8]2[N:12]3[CH:13]=[C:14]([NH:17][CH:18]4[CH2:23][CH2:22][CH:21]([OH:24])[CH2:20][CH2:19]4)[CH:15]=[CH:16][C:11]3=[N:10][CH:9]=2)[CH:5]=[CH:4][N:3]=1.[NH:25]1[CH:29]=[CH:28][CH:27]=[N:26]1.C(=O)([O-])[O-].[Cs+].[Cs+]>CN(C=O)C>[N:25]1([C:2]2[CH:7]=[C:6]([C:8]3[N:12]4[CH:13]=[C:14]([NH:17][CH:18]5[CH2:23][CH2:22][CH:21]([OH:24])[CH2:20][CH2:19]5)[CH:15]=[CH:16][C:11]4=[N:10][CH:9]=3)[CH:5]=[CH:4][N:3]=2)[CH:29]=[CH:28][CH:27]=[N:26]1

Participants

5

Reactant 3

HCID 1048PyrazoleHCID 10796Cesium carbonateHCID 252619024-[3-(2-Chloro-pyridin-4-yl)-imidazo[1,2-a]pyridin-6-ylamino]-cyclohexanol

Product 1

HCID 68485174HCID 68485174, compound

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

A mixture comprising [4-[3-(2-Chloro-pyridin-4-yl)-imidazo[1,2-a]pyridin-6-ylamino]-cyclohexanol (Example 2.1) (1 eq, 0.29 mmol, 100 mg), pyrazole (5 eq, 1.45 mmol, 99 mg) and cesium carbonate (3 eq, 0.87 mmol, 284 mg) in DMF (25 ml) is heated using microwave radiation at 145° C. for 6 hours. After cooling to room temperature, the mixture is loaded onto a SCX-2 cartridge eluting with MeOH followed by 2M NH3 in MeOH. The solvent is removed in vacuo and the crude product is triturated with ethyl acetate to afford the title compound; [M+H]+=375

Workup

  1. temperatureis heated
  2. customat 145° C.
  3. customfor 6 hours
  4. washeluting with MeOH
  5. customThe solvent is removed in vacuo
  6. customthe crude product is triturated with ethyl acetate

Sources & evidence

ORD record
ord-06cc73b89da14582ab5ac35f6b642553
Source dataset
uspto-grants-2013_02
Patent number
US08367662B2

Reaction notes

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