Sodium Carbonate → 3'-Chloro-3-fluoro-4'-[3,3,3-trifluoro-2-hydroxy-1-methyl-2-(3-methyl-2-oxo-2,3-dihydro-benzooxazol-5-yl)-propyl]-biphenyl-4-carboxylic acid methyl ester

HRID 2096824Notes

Reaction equation

HRID 2096824 reaction equation
Br[C:2]1[CH:7]=[CH:6][C:5]([CH:8]([CH3:26])[C:9]([C:15]2[CH:16]=[CH:17][C:18]3[O:22][C:21](=[O:23])[N:20]([CH3:24])[C:19]=3[CH:25]=2)([OH:14])[C:10]([F:13])([F:12])[F:11])=[C:4]([Cl:27])[CH:3]=1.[F:28][C:29]1[CH:30]=[C:31](B(O)O)[CH:32]=[CH:33][C:34]=1[C:35]([O:37][CH3:38])=[O:36].C([O-])([O-])=O.[Na+].[Na+]>O1CCOCC1.O>[CH3:38][O:37][C:35]([C:34]1[CH:33]=[CH:32][C:31]([C:2]2[CH:7]=[CH:6][C:5]([CH:8]([CH3:26])[C:9]([OH:14])([C:15]3[CH:16]=[CH:17][C:18]4[O:22][C:21](=[O:23])[N:20]([CH3:24])[C:19]=4[CH:25]=3)[C:10]([F:11])([F:13])[F:12])=[C:4]([Cl:27])[CH:3]=2)=[CH:30][C:29]=1[F:28])=[O:36]

Participants

6

Reactant 3

HCID 10340Sodium CarbonateHCID 27828183-Fluoro-4-(methoxycarbonyl)benzeneboronic acidHCID 666969815-[2-(4-Bromo-2-chloro-phenyl)-1-hydroxy-1-trifluoromethyl-propyl]-3-methyl-3H-benzooxazol-2-one

Product 1

HCID 666970783'-Chloro-3-fluoro-4'-[3,3,3-trifluoro-2-hydroxy-1-methyl-2-(3-methyl-2-oxo-2,3-dihydro-benzooxazol-5-yl)-propyl]-biphenyl-4-carboxylic acid methyl esterYield 76%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 312751,4-DioxaneSolvent

Conditions

Temperature
80 °C

Procedure

5-[2-(4-Bromo-2-chloro-phenyl)-1-hydroxy-1-trifluoromethyl-propyl]-3-methyl-3H-benzooxazol-2-one (500 mg, obtained in Example 116, step 8), 3-fluoro-4-methoxycarbonyl-phenylboronic acid (320 mg, [CAS Reg. No. 505083-04-5]) and dichloro(1,1′-bis(diphenyl-phosphino)ferrocene)palladium(II)dichloromethane adduct (39 mg) were dissolved in dioxane (9 mL) and water (5 mL). To the reaction mixture was added 2.0 M aqueous Na2CO3 (0.81 mL). The mixture was heated to 80° C. for 2 hours. The reaction mixture was cooled, poured into ice/water and extracted two times with ethyl acetate. The combined organic layers were washed with brine, dried over Na2SO4, filtered and the solvent was evaporated. The residue was purified by flash chromatography (silica gel, gradient of heptane in ethyl acetate) to give the title compound as a colorless foam (440 mg, 76%). MS (m/e)=555.2 [(M+NH4+)+], MS (m/e)=506.1 [(M-CH3O−)+].

Workup

  1. temperatureThe reaction mixture was cooled
  2. extractionextracted two times with ethyl acetate
  3. washThe combined organic layers were washed with brine
  4. dry with materialdried over Na2SO4
  5. filtrationfiltered
  6. customthe solvent was evaporated
  7. customThe residue was purified by flash chromatography (silica gel, gradient of heptane in ethyl acetate)

Sources & evidence

ORD record
ord-aee04a30c21f4168a0b62dd949b58e73
Source dataset
uspto-grants-2013_05
Patent number
US08450313B2

Reaction notes

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