Methyl 5-hydroxy-2-methylbenzoate → 5-(5-Biphenyl-4-yl-6-fluoro-1H-benzoimidazol-2-yloxy)-2-methyl-benzoic acid methyl ester

HRID 1945316Notes

Reaction equation

HRID 1945316 reaction equation
[C:1]1([C:21]2[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=2)[CH:6]=[CH:5][C:4]([C:7]2[C:19]([F:20])=[CH:18][C:10]3[NH:11][C:12](S(C)(=O)=O)=[N:13][C:9]=3[CH:8]=2)=[CH:3][CH:2]=1.[CH3:27][O:28][C:29](=[O:38])[C:30]1[CH:35]=[C:34]([OH:36])[CH:33]=[CH:32][C:31]=1[CH3:37]>N1C=CC=CC=1.CCOC(C)=O>[CH3:27][O:28][C:29](=[O:38])[C:30]1[CH:35]=[C:34]([O:36][C:12]2[NH:11][C:10]3[CH:18]=[C:19]([F:20])[C:7]([C:4]4[CH:5]=[CH:6][C:1]([C:21]5[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=5)=[CH:2][CH:3]=4)=[CH:8][C:9]=3[N:13]=2)[CH:33]=[CH:32][C:31]=1[CH3:37]

Participants

5

Reactant 2

HCID 13929055Methyl 5-hydroxy-2-methylbenzoateHCID 674455365-Biphenyl-4-yl-6-fluoro-2-methanesulfonyl-1H-benzoimidazole

Product 1

HCID 685244605-(5-Biphenyl-4-yl-6-fluoro-1H-benzoimidazol-2-yloxy)-2-methyl-benzoic acid methyl ester

Reagents, catalysts & solvents 2

HCID 1049PyridineSolventHCID 8857Ethyl AcetateSolvent

Procedure

To a solution of 7 (454 mg, 1.2 mmol) in pyridine 10 mL was added 5-hydroxy-2-methyl-benzoic acid methyl ester (412 mg, 2.4 mmol). The reaction mixture was heated to reflux for 5 days. Once the reaction was determined to be complete by TLC, the reaction mixture was diluted with EtOAc (100 mL) and washed two times with 100 mL portions of saturated aqueous ammonium chloride. The combined organic layers were dried over MgSO4 filtered and concentrated in vacuo to give a crude brown oil. The resulting oil was purified on ISCO (EtOAc/Hexanes=2/3) to give title compound 8 as a yellow oil.

Workup

  1. temperatureThe reaction mixture was heated
  2. temperatureto reflux for 5 days
  3. washwashed two times with 100 mL portions of saturated aqueous ammonium chloride
  4. dry with materialThe combined organic layers were dried over MgSO4
  5. filtrationfiltered
  6. concentrationconcentrated in vacuo
  7. customto give a crude brown oil
  8. customThe resulting oil was purified on ISCO (EtOAc/Hexanes=2/3)

Sources & evidence

ORD record
ord-217096ef447c4e4baed7ac08e2efd5ce
Source dataset
uspto-grants-2013_03
Patent number
US08394969B2

Reaction notes

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