Water → ethyl 2-(2-(1-(tert-butyl)-5-(4-fluorophenyl)-1H-pyrazol-4-yl)thiazol-4-yl)-3-phenylpropanoate

HRID 1750431Notes

Reaction equation

HRID 1750431 reaction equation
[C:1]([N:5]1[C:9]([C:10]2[CH:15]=[CH:14][C:13]([F:16])=[CH:12][CH:11]=2)=[C:8]([C:17]2[S:18][CH:19]=[C:20]([CH2:22][C:23]([O:25][CH2:26][CH3:27])=[O:24])[N:21]=2)[CH:7]=[N:6]1)([CH3:4])([CH3:3])[CH3:2].[H-].[Na+].[CH2:30](Br)[C:31]1[CH:36]=[CH:35][CH:34]=[CH:33][CH:32]=1.O>CN(C=O)C>[C:1]([N:5]1[C:9]([C:10]2[CH:15]=[CH:14][C:13]([F:16])=[CH:12][CH:11]=2)=[C:8]([C:17]2[S:18][CH:19]=[C:20]([CH:22]([CH2:30][C:31]3[CH:36]=[CH:35][CH:34]=[CH:33][CH:32]=3)[C:23]([O:25][CH2:26][CH3:27])=[O:24])[N:21]=2)[CH:7]=[N:6]1)([CH3:4])([CH3:3])[CH3:2]

Participants

6

Reactant 4

HCID 962WaterHCID 7498Benzyl BromideHCID 24758Sodium hydrideHCID 86721181ethyl 2-(2-(1-tert-butyl-5-(4-fluorophenyl)-1H-pyrazol-4-yl)thiazol-4-yl)acetate

Product 1

HCID 86721274ethyl 2-(2-(1-(tert-butyl)-5-(4-fluorophenyl)-1H-pyrazol-4-yl)thiazol-4-yl)-3-phenylpropanoateYield 25.8%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

To a solution of ethyl 2-(2-(1-tert-butyl-5-(4-fluorophenyl)-1H-pyrazol-4-yl)thiazol-4-yl)acetate (50 mg, 0.13 mmol) in DMF (2.0 mL) was added sodium hydride (60 wt % oil 6.19 mg, 0.15 mmol) at 0° C., and the mixture was stirred at room temperature for 15 min. To the reaction mixture was added benzyl bromide (0.018 mL, 0.15 mmol) at 0° C., and the mixture was stirred at room temperature for 4 hr. Water was added to the reaction mixture, and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine and dried, and the solvent was evaporated under reduced pressure. The obtained residue was purified by silica gel column chromatography (solvent gradient; 0→10% ethyl acetate/hexane) to give ethyl 2-(2-(1-(tert-butyl)-5-(4-fluorophenyl)-1H-pyrazol-4-yl)thiazol-4-yl)-3-phenylpropanoate (15.9 mg, 0.033 mmol, 25.8%) as a colorless oil.

Workup

  1. stirringthe mixture was stirred at room temperature for 4 hr
  2. extractionthe mixture was extracted with ethyl acetate
  3. washThe organic layer was washed with saturated brine
  4. customdried
  5. customthe solvent was evaporated under reduced pressure
  6. customThe obtained residue was purified by silica gel column chromatography (solvent gradient; 0→10% ethyl acetate/hexane)

Sources & evidence

ORD record
ord-e57632c1e23c4dc98ab84282cebea13e
Source dataset
uspto-grants-2015_10
Patent number
US09156837B2

Reaction notes

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