Potassium Carbonate → 1-(2-cyclopropyl-3-methyl-2H-indazol-5-yl)-4-{[2-(trifluoromethyl)-1,3-thiazol-4-yl]methoxy}pyridin-2(1H)-one

HRID 1497413Notes

Reaction equation

HRID 1497413 reaction equation
[CH:1]1([N:4]2[C:12]([CH3:13])=[C:11]3[C:6]([CH:7]=[CH:8][C:9]([N:14]4[CH:19]=[CH:18][C:17]([OH:20])=[CH:16][C:15]4=[O:21])=[CH:10]3)=[N:5]2)[CH2:3][CH2:2]1.Cl[CH2:23][C:24]1[N:25]=[C:26]([C:29]([F:32])([F:31])[F:30])[S:27][CH:28]=1.C(=O)([O-])[O-].[K+].[K+]>CN(C=O)C.C(OCC)(=O)C>[CH:1]1([N:4]2[C:12]([CH3:13])=[C:11]3[C:6]([CH:7]=[CH:8][C:9]([N:14]4[CH:19]=[CH:18][C:17]([O:20][CH2:23][C:24]5[N:25]=[C:26]([C:29]([F:32])([F:31])[F:30])[S:27][CH:28]=5)=[CH:16][C:15]4=[O:21])=[CH:10]3)=[N:5]2)[CH2:2][CH2:3]1

Participants

6

Reactant 3

HCID 11430Potassium CarbonateHCID 177504144-(Chloromethyl)-2-(trifluoromethyl)-1,3-thiazoleHCID 1177986831-(2-cyclopropyl-3-methyl-2H-indazol-5-yl)-4-hydroxypyridin-2(1H)-one

Product 1

HCID 904694381-(2-cyclopropyl-3-methyl-2H-indazol-5-yl)-4-{[2-(trifluoromethyl)-1,3-thiazol-4-yl]methoxy}pyridin-2(1H)-oneYield 44.4%

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolvent

Procedure

To a mixture of 1-(2-cyclopropyl-3-methyl-2H-indazol-5-yl)-4-hydroxypyridin-2(1H)-one (200 mg) and 4-(chloromethyl)-2-(trifluoromethyl)thiazole (172 mg) in DMF (4 ml) was added potassium carbonate (118 mg) at room temperature, and the mixture was stirred at the same temperature overnight. The reaction mixture was diluted with ethyl acetate, washed with water and saturated brine, dried over anhydrous magnesium sulfate, and concentrated under reduced pressure. The residue was fractionated by HPLC (C18, mobile phase: water/acetonitrile (containing 0.1% NH4HCO3)), and saturated aqueous sodium hydrogen carbonate solution was added to the obtained fraction. The mixture was extracted with ethyl acetate, dried over anhydrous magnesium sulfate, and concentrated under reduced pressure. The residue was crystallized from methanol-water to give the title compound (141 mg).

Workup

  1. washwashed with water and saturated brine
  2. dry with materialdried over anhydrous magnesium sulfate
  3. concentrationconcentrated under reduced pressure
  4. additionwas added to the obtained fraction
  5. extractionThe mixture was extracted with ethyl acetate
  6. dry with materialdried over anhydrous magnesium sulfate
  7. concentrationconcentrated under reduced pressure
  8. customThe residue was crystallized from methanol-water

Sources & evidence

ORD record
ord-9a3b0c4086274e19a9af5b3372ec03dd
Source dataset
uspto-grants-2015_12
Patent number
US09199963B2

Reaction notes

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