Methanol → 2-(4-{2-[4-(1H-benzoimidazol-2-yl)-piperidin-1-yl]-ethyl}-phenyl)-2-methyl-propionic acid methylester

HRID 451233Notes

Reaction equation

HRID 451233 reaction equation
[CH3:1][O:2][C:3](=[O:20])[C:4]([C:7]1[CH:12]=[CH:11][C:10]([CH2:13][CH2:14]OS(C)(=O)=O)=[CH:9][CH:8]=1)([CH3:6])[CH3:5].C(=O)([O-])[O-].[Na+].[Na+].[NH:27]1[CH2:32][CH2:31][CH:30]([C:33]2[NH:37][C:36]3[CH:38]=[CH:39][CH:40]=[CH:41][C:35]=3[N:34]=2)[CH2:29][CH2:28]1.CO>O>[CH3:1][O:2][C:3](=[O:20])[C:4]([C:7]1[CH:12]=[CH:11][C:10]([CH2:13][CH2:14][N:27]2[CH2:28][CH2:29][CH:30]([C:33]3[NH:34][C:35]4[CH:41]=[CH:40][CH:39]=[CH:38][C:36]=4[N:37]=3)[CH2:31][CH2:32]2)=[CH:9][CH:8]=1)([CH3:6])[CH3:5]

Participants

6

Reactant 4

HCID 887MethanolHCID 10340Sodium CarbonateHCID 7158102-(piperidin-4-yl)-1H-1,3-benzodiazoleHCID 452575292-[4-(2-Methanesulfonyloxy-ethyl)-phenyl]-2-methyl-propionic acid methylester

Product 1

HCID 452575302-(4-{2-[4-(1H-benzoimidazol-2-yl)-piperidin-1-yl]-ethyl}-phenyl)-2-methyl-propionic acid methylesterYield 85%

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

In a reaction vessel, 2-[4-(2-methanesulfonyloxy-ethyl)-phenyl]-2-methyl-propionic acid methylester (3.0 g) prepared in the Example 5, sodium carbonate (1.1 g), 2-(4-piperadinyl)-1H-benzoimidazole (3.0 g) and methylalcohol (30 mL) were introduced, and the mixture was reacted for 14 hours under reflux condition. Distilled water (50 mL) was added to crystallize. The crystals were filtered under reduced pressure, washed with distilled water, and dried to obtain 2-(4-{2-[4-(1H-benzoimidazol-2-yl)-piperidin-1-yl]-ethyl}-phenyl)-2-methyl-propionic acid methylester (3.4 g, yield 85%).

Workup

  1. additionwere introduced
  2. customthe mixture was reacted for 14 hours
  3. temperatureunder reflux condition
  4. customto crystallize
  5. filtrationThe crystals were filtered under reduced pressure
  6. washwashed with distilled water
  7. customdried

Sources & evidence

ORD record
ord-34cd270c34d4410eb03456c0bb0fb4a7
Source dataset
uspto-grants-2013_07
Patent number
US08487106B2

Reaction notes

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