Methyl iodide → HCID 58355375, compound

HRID 1509524Notes

Reaction equation

HRID 1509524 reaction equation
[NH:1]1[C:5]2[CH:6]=[CH:7][CH:8]=[CH:9][C:4]=2[N:3]=[C:2]1[C:10]([N:12]([CH2:34][CH:35]([CH3:37])[CH3:36])[C@H:13]1[CH2:18][C@@H:17]([C:19]([N:21]2[CH2:26][CH2:25][O:24][CH2:23][CH2:22]2)=[O:20])[CH2:16][N:15]([C:27]([O:29][C:30]([CH3:33])([CH3:32])[CH3:31])=[O:28])[CH2:14]1)=[O:11].CI.[C:40](=O)([O-])[O-].[Cs+].[Cs+]>CN(C)C=O>[CH3:40][N:1]1[C:5]2[CH:6]=[CH:7][CH:8]=[CH:9][C:4]=2[N:3]=[C:2]1[C:10]([N:12]([CH2:34][CH:35]([CH3:37])[CH3:36])[C@H:13]1[CH2:18][C@@H:17]([C:19]([N:21]2[CH2:22][CH2:23][O:24][CH2:25][CH2:26]2)=[O:20])[CH2:16][N:15]([C:27]([O:29][C:30]([CH3:31])([CH3:32])[CH3:33])=[O:28])[CH2:14]1)=[O:11]

Participants

5

Reactant 3

HCID 6328Methyl iodideHCID 10796Cesium carbonateHCID 58355717tert-Butyl (3S,5R)-3-{(1H-benzimidazol-2-ylcarbonyl)(2-methylpropyl)amino)-5-(morpholin-4-ylcarbonyl)piperidine-1-carboxylate

Product 1

HCID 58355375HCID 58355375, compoundYield 87.4%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

tert-Butyl (3S,5R)-3-{(1H-benzimidazol-2-ylcarbonyl)(2-methylpropyl)amino}-5-(morpholin-4-ylcarbonyl)piperidine-1-carboxylate (205 mg) was dissolved in dimethylformamide (5 ml), methyl iodide (75 μl) and cesium carbonate (391 mg) were added and the mixture was stirred at room temperature for 2 hr. The reaction mixture was concentrated under reduced pressure, diluted with aqueous sodium bicarbonate, and the mixture was extracted with ethyl acetate. The extract was washed with saturated brine, dried over anhydrous magnesium sulfate, and concentrated under reduced pressure. The residue was subjected to silica gel chromatography, and a fraction eluted with ethyl acetate-hexane (6:4) was concentrated under reduced pressure to give the object product (184 mg).

Workup

  1. concentrationThe reaction mixture was concentrated under reduced pressure
  2. additiondiluted with aqueous sodium bicarbonate
  3. extractionthe mixture was extracted with ethyl acetate
  4. washThe extract was washed with saturated brine
  5. dry with materialdried over anhydrous magnesium sulfate
  6. concentrationconcentrated under reduced pressure
  7. washa fraction eluted with ethyl acetate-hexane (6:4)
  8. concentrationwas concentrated under reduced pressure

Sources & evidence

ORD record
ord-5ec2a28c06734467b049e2929dc28241
Source dataset
uspto-grants-2015_12
Patent number
US09221836B2

Reaction notes

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