Pyrazole → HCID 69743545, compound

HRID 1760374Notes

Reaction equation

HRID 1760374 reaction equation
[CH2:1]([O:3][C:4]([C:6]1([C:27]([O:29][CH2:30][CH3:31])=[O:28])[CH2:10][CH2:9][C:8](=[O:11])[N:7]1[C:12]1[CH:13]=[N:14][C:15]([O:18][C:19]2[CH:24]=[CH:23][C:22]([CH2:25]Br)=[CH:21][CH:20]=2)=[CH:16][CH:17]=1)=[O:5])[CH3:2].[NH:32]1[CH:36]=[CH:35][CH:34]=[N:33]1.C(=O)([O-])[O-].[K+].[K+]>CN(C)C=O.O>[CH2:1]([O:3][C:4]([C:6]1([C:27]([O:29][CH2:30][CH3:31])=[O:28])[CH2:10][CH2:9][C:8](=[O:11])[N:7]1[C:12]1[CH:13]=[N:14][C:15]([O:18][C:19]2[CH:24]=[CH:23][C:22]([CH2:25][N:32]3[CH:36]=[CH:35][CH:34]=[N:33]3)=[CH:21][CH:20]=2)=[CH:16][CH:17]=1)=[O:5])[CH3:2]

Participants

6

Reactant 3

HCID 1048PyrazoleHCID 11430Potassium CarbonateHCID 69741938HCID 69741938, compound

Product 1

HCID 69743545HCID 69743545, compound

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6228DimethylformamideSolvent

Conditions

Temperature
50 °C

Procedure

To a solution of 1-[6-(4-bromomethyl-phenoxy)-pyridin-3-yl]-5-oxo-pyrrolidine-2,2-dicarboxylic acid diethyl ester (0.2 g, 0.4 mmol) in 0.8 mL of dimethylformamide was added pyrazole (0.056 g, 0.82 mmol) and potassium carbonate (0.11 g, 0.82 mmol). After stirring for 24 hours at 50° C., the mixture was diluted with water, extracted three times with ethyl acetate, and the combined organic phases were dried over sodium sulfate, filtered and concentrated in vacuo, affording the crude product as a colorless syrup that was used directly in the next step. MS (APCl, m/z): 479.2 [M+H]+.

Workup

  1. extractionextracted three times with ethyl acetate
  2. dry with materialthe combined organic phases were dried over sodium sulfate
  3. filtrationfiltered
  4. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-7b193e426e9c4c84b49a81ace2b50911
Source dataset
uspto-grants-2005_01
Patent number
US06841671B2

Reaction notes

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