Water → 2-[(4-{2-[(4'-Fluorobiphenyl-4-yl)methoxy]ethyl}-1,3-thiazol-2-yl)thio]-2-methylpropionic acid ethyl ester

HRID 914342Notes

Reaction equation

HRID 914342 reaction equation
[CH2:1]([O:3][C:4](=[O:25])[C:5]([S:8][C:9]1[S:10][CH:11]=[C:12]([CH2:14][CH2:15][O:16][CH2:17][C:18]2[CH:23]=[CH:22][C:21](Br)=[CH:20][CH:19]=2)[N:13]=1)([CH3:7])[CH3:6])[CH3:2].[F:26][C:27]1[CH:32]=[CH:31][C:30](OB(O)O)=[CH:29][CH:28]=1.C(=O)([O-])[O-].[Na+].[Na+].O>O1CCOCC1.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[CH2:1]([O:3][C:4](=[O:25])[C:5]([S:8][C:9]1[S:10][CH:11]=[C:12]([CH2:14][CH2:15][O:16][CH2:17][C:18]2[CH:23]=[CH:22][C:21]([C:30]3[CH:31]=[CH:32][C:27]([F:26])=[CH:28][CH:29]=3)=[CH:20][CH:19]=2)[N:13]=1)([CH3:7])[CH3:6])[CH3:2]

Participants

7

Reactant 4

HCID 962WaterHCID 10340Sodium CarbonateHCID 219397714-Fluoro-phenylboric acidHCID 59759008HCID 59759008, compound

Product 1

HCID 597593242-[(4-{2-[(4'-Fluorobiphenyl-4-yl)methoxy]ethyl}-1,3-thiazol-2-yl)thio]-2-methylpropionic acid ethyl esterYield 43%

Reagents, catalysts & solvents 2

HCID 178418397HCID 178418397, compoundCatalystHCID 312751,4-DioxaneSolvent

Procedure

Under nitrogen atmosphere, 2-[(4-{2-[(4-bromobenzyl)oxy]ethyl}-1,3-thiazol-2-yl)thio]-2-methylpropionic acid ethyl ester (0.9 g) synthesized in Example 155-2 and 4-fluorophenylboric acid (425 mg) were dissolved in dioxane (10 mL) and aqueous sodium carbonate solution (2 mol/L, 5 mL), tetrakis(triphenylphosphine)palladium (117 mg) was added, and the mixture was refluxed for 4 hr. The reaction mixture was cooled, water was added thereto, and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine and dried over anhydrous sodium sulfate. The solvent was evaporated under reduced pressure, and the residue was purified by silica gel chromatography (elution solvent; hexane:ethyl acetate=5:1) to give the title compound (400 mg) as a colorless oil.

Workup

  1. temperaturethe mixture was refluxed for 4 hr
  2. temperatureThe reaction mixture was cooled
  3. extractionthe mixture was extracted with ethyl acetate
  4. washThe organic layer was washed with saturated brine
  5. dry with materialdried over anhydrous sodium sulfate
  6. customThe solvent was evaporated under reduced pressure
  7. customthe residue was purified by silica gel chromatography (elution solvent; hexane:ethyl acetate=5:1)

Sources & evidence

ORD record
ord-e7877a1912514ecda11867a60fc2bbfc
Source dataset
uspto-grants-2011_09
Patent number
US08026370B2

Reaction notes

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