Cesium carbonate → 4-(2-(4-(1H-benzo[d]imidazole-2-carbonyl)phenoxy)pyridin-3-yl)cycloheptanone

HRID 410246Notes

Reaction equation

HRID 410246 reaction equation
C(=O)([O-])[O-].[Cs+].[Cs+].[NH:7]1[C:11]2[CH:12]=[CH:13][CH:14]=[CH:15][C:10]=2[N:9]=[C:8]1[C:16]([C:18]1[CH:23]=[CH:22][C:21]([OH:24])=[CH:20][CH:19]=1)=[O:17].F[C:26]1[C:31]([CH:32]2[CH2:38][CH2:37][CH2:36][C:35](=[O:39])[CH2:34][CH2:33]2)=[CH:30][CH:29]=[CH:28][N:27]=1>CN1C(=O)CCC1>[NH:7]1[C:11]2[CH:12]=[CH:13][CH:14]=[CH:15][C:10]=2[N:9]=[C:8]1[C:16]([C:18]1[CH:23]=[CH:22][C:21]([O:24][C:26]2[C:31]([CH:32]3[CH2:38][CH2:37][CH2:36][C:35](=[O:39])[CH2:34][CH2:33]3)=[CH:30][CH:29]=[CH:28][N:27]=2)=[CH:20][CH:19]=1)=[O:17]

Participants

5

Reactant 3

HCID 10796Cesium carbonateHCID 59326874(1H-benzo[d]imidazol-2-yl)(4-hydroxyphenyl)methanoneHCID 593271094-(2-Fluoropyridin-3-yl)cycloheptanone

Product 1

HCID 593269804-(2-(4-(1H-benzo[d]imidazole-2-carbonyl)phenoxy)pyridin-3-yl)cycloheptanone

Reagents, catalysts & solvents 1

HCID 13387N-methyl-2-pyrrolidoneSolvent

Conditions

Temperature
140 °C

Procedure

A mixture of cesium carbonate (0.34 g, 1.03 mmol), (1H-benzo[d]imidazol-2-yl)(4-hydroxyphenyl)methanone (0.25 g, 1.03 mmol), and 4-(2-fluoropyridin-3-yl)cycloheptanone (0.071 g, 0.343 mmol) in NMP (0.3 mL) under argon was heated to 140° C. for 36 h, then cooled to room temperature. The resulting mixture was partitioned between ethyl acetate and water, the layers were separated, and the organic layer was washed 1N aqueous sodium hydroxide (2×), saturated aqueous sodium chloride (1×), dried over anhydrous magnesium sulfate, filtered, and concentrated in vacuo. The oil was purified by silica gel chromatography to give 4-(2-(4-(1H-benzo[d]imidazole-2-carbonyl)phenoxy)pyridin-3-yl)cycloheptanone. MS (ESI, pos. ion) m/z: 426.1 (M+1). IC50 (uM) +++++.

Workup

  1. temperaturecooled to room temperature
  2. customThe resulting mixture was partitioned between ethyl acetate and water
  3. customthe layers were separated
  4. washthe organic layer was washed 1N aqueous sodium hydroxide (2×), saturated aqueous sodium chloride (1×)
  5. dry with materialdried over anhydrous magnesium sulfate
  6. filtrationfiltered
  7. concentrationconcentrated in vacuo
  8. customThe oil was purified by silica gel chromatography

Sources & evidence

ORD record
ord-1bf2686c956348b2a94bd1487f70877b
Source dataset
uspto-grants-2014_06
Patent number
US08759532B2

Reaction notes

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