Water → HCID 22380729, compound

HRID 895630Notes

Reaction equation

HRID 895630 reaction equation
[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][CH:11]([NH:14][C:15]2[CH:20]=[CH:19][CH:18]=[CH:17][C:16]=2[OH:21])[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].Br[CH2:23][C:24]([O:26][CH3:27])=[O:25].C(=O)([O-])[O-].[K+].[K+].O>CN(C)C=O>[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][CH:11]([NH:14][C:15]2[CH:20]=[CH:19][CH:18]=[CH:17][C:16]=2[O:21][CH2:23][C:24]([O:26][CH3:27])=[O:25])[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:2])[CH3:3]

Participants

6

Reactant 4

HCID 962WaterHCID 11430Potassium CarbonateHCID 60984Methyl bromoacetateHCID 22380697tert-Butyl 4-(2-hydroxyanilino)piperidine-1-carboxylate

Product 1

HCID 22380729HCID 22380729, compoundYield 83%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

1-(tert-Butoxycarbonyl)-4-[(2-hydroxyphenyl)amino]piperidine (50 mg) was dissolved in N,N-dimethylformamide (1 ml), added with methyl bromoacetate (17 μl) and potassium carbonate (25 mg) and stirred at room temperature for 17 hours. The reaction mixture was added with water (3 ml) and extracted twice with ethyl acetate (3 ml). The organic layer was dried over anhydrous magnesium sulfate, and then the solvent was evaporated under reduced pressure. The residue was purified by preparative thin layer silica gel column chromatography (developing solvent: hexane:ethyl acetate=1:1) to obtain 51.8 mg of the title compound. Yield: 83%.

Workup

  1. extractionextracted twice with ethyl acetate (3 ml)
  2. dry with materialThe organic layer was dried over anhydrous magnesium sulfate
  3. customthe solvent was evaporated under reduced pressure
  4. customThe residue was purified by preparative thin layer silica gel column chromatography (developing solvent: hexane:ethyl acetate=1:1)

Sources & evidence

ORD record
ord-9c0a21421e8649b395b195ca07a93ea8
Source dataset
uspto-grants-2005_07
Patent number
US06916822B2

Reaction notes

Loading…