Methyl iodide → Methyl cis(+/-)-6-(4-{[(benzyloxy)carbonyl]amino}-3-methoxypiperidin-1-yl)pyrimidine-4-carboxylate

HRID 1425247Notes

Reaction equation

HRID 1425247 reaction equation
[CH2:1]([O:8][C:9]([NH:11][C@H:12]1[CH2:17][CH2:16][N:15]([C:18]2[N:23]=[CH:22][N:21]=[C:20]([C:24]([OH:26])=[O:25])[CH:19]=2)[CH2:14][C@H:13]1[O:27][CH3:28])=[O:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[C:29](=O)([O-])[O-].[K+].[K+].CI>CN(C=O)C.C(OCC)(=O)C>[CH2:1]([O:8][C:9]([NH:11][C@H:12]1[CH2:17][CH2:16][N:15]([C:18]2[N:23]=[CH:22][N:21]=[C:20]([C:24]([O:26][CH3:29])=[O:25])[CH:19]=2)[CH2:14][C@H:13]1[O:27][CH3:28])=[O:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

Participants

6

Reactant 3

HCID 6328Methyl iodide2×HCID 11430Potassium Carbonate2×HCID 86648726cis(+/-)-6-(4-{[(Benzyloxy)carbonyl]amino}-3-methoxypiperidin-1-yl)pyrimidine-4-carboxylic acid

Product 1

HCID 86648725Methyl cis(+/-)-6-(4-{[(benzyloxy)carbonyl]amino}-3-methoxypiperidin-1-yl)pyrimidine-4-carboxylateYield 25.7%

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolvent

Procedure

cis(±)-6-(4-{[(Benzyloxy)carbonyl]amino}-3-methoxypiperidin-1-yl)pyrimidine-4-carboxylic acid obtained in Example (174b) (420 mg, 1.09 mmol) was dissolved in DMF (10 mL). Potassium carbonate (180 mg, 1.3 mmol) and methyl iodide (185 mg, 1.3 mmol) were added, and the mixture was stirred at room temperature overnight. Potassium carbonate (180 mg, 1.3 mmol) and methyl iodide (185 mg, 1.3 mmol) were further added, and the mixture was stirred at room temperature overnight. The reaction solution was diluted with ethyl acetate, washed with water and brine, and then dried over anhydrous sodium sulfate. Following concentration under reduced pressure, the residue was purified by silica gel column chromatography (elution solvent: dichloromethane/methanol=40/1, 20/1, 10/1) to obtain 112 mg of the title compound as a brown oily substance (26%).

Workup

  1. stirringthe mixture was stirred at room temperature overnight
  2. washwashed with water and brine
  3. dry with materialdried over anhydrous sodium sulfate
  4. concentrationconcentration under reduced pressure
  5. customthe residue was purified by silica gel column chromatography (elution solvent: dichloromethane/methanol=40/1, 20/1, 10/1)

Sources & evidence

ORD record
ord-c85bfc9ea82e4e00a2e5abe1db4a469d
Source dataset
uspto-grants-2015_01
Patent number
US08927588B2

Reaction notes

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