Water → Methyl 4-bromo-2-({3-(4-chlorophenyl)-5-oxo-4-[(2S)-3,3,3-trifluoro-2-hydroxypropyl]-4,5-dihydro-1H-1,2,4-triazol-1-yl}methyl)benzoate

HRID 714661Notes

Reaction equation

HRID 714661 reaction equation
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[N:9]([CH2:14][C@H:15]([OH:20])[C:16]([F:19])([F:18])[F:17])[C:10](=[O:13])[NH:11][N:12]=2)=[CH:4][CH:3]=1.C(=O)([O-])[O-].[Cs+].[Cs+].[Br:27][C:28]1[CH:37]=[CH:36][C:31]([C:32]([O:34][CH3:35])=[O:33])=[C:30]([CH2:38]Br)[CH:29]=1.O>C(#N)C>[Br:27][C:28]1[CH:37]=[CH:36][C:31]([C:32]([O:34][CH3:35])=[O:33])=[C:30]([CH2:38][N:11]2[C:10](=[O:13])[N:9]([CH2:14][C@H:15]([OH:20])[C:16]([F:18])([F:19])[F:17])[C:8]([C:5]3[CH:6]=[CH:7][C:2]([Cl:1])=[CH:3][CH:4]=3)=[N:12]2)[CH:29]=1

Participants

6

Reactant 4

HCID 962WaterHCID 10796Cesium carbonateHCID 22031079Methyl 4-bromo-2-(bromomethyl)benzoateHCID 595368365-(4-Chlorophenyl)-4-[(2S)-3,3,3-trifluoro-2-hydroxypropyl]-2,4-dihydro-3H-1,2,4-triazol-3-one

Product 1

HCID 67396533Methyl 4-bromo-2-({3-(4-chlorophenyl)-5-oxo-4-[(2S)-3,3,3-trifluoro-2-hydroxypropyl]-4,5-dihydro-1H-1,2,4-triazol-1-yl}methyl)benzoate

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent

Procedure

515 mg (1.67 mmol) of the compound from Example 5A and 818 mg (2.51 mmol) of cesium carbonate were suspended in 10 ml of acetonitrile, and 810 mg (1.84 mmol) of methyl 4-bromo-2-(bromomethyl)benzoate were added. The mixture was stirred under reflux for 3 h. After cooling to RT, 15 ml of water were added and the mixture was extracted three times with in each case 10 ml of ethyl acetate. The combined organic phases were dried over sodium sulfate, filtered and concentrated under reduced pressure. The residue was purified chromatographically [Method 19]. This gave 455 mg (51% of theory) of the target compound.

Workup

  1. temperatureunder reflux for 3 h
  2. extractionthe mixture was extracted three times with in each case 10 ml of ethyl acetate
  3. dry with materialThe combined organic phases were dried over sodium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated under reduced pressure
  6. customThe residue was purified chromatographically [Method 19]

Sources & evidence

ORD record
ord-70ccb43da0e04563ab0af7cb2859de00
Source dataset
uspto-grants-2015_11
Patent number
US09187466B2

Reaction notes

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