Water → HCID 66993118, compound

HRID 1879711Notes

Reaction equation

HRID 1879711 reaction equation
CC(C)([O-])C.[K+].[CH2:7]([N:14]([CH2:18][C:19]1[C:24](Cl)=[N:23][C:22]([N:26]2[CH2:30][CH2:29][CH2:28][CH:27]2[CH3:31])=[CH:21][N:20]=1)[CH2:15][CH2:16][OH:17])[C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=1.O>CN(C=O)C>[CH2:7]([N:14]1[CH2:18][C:19]2[N:20]=[CH:21][C:22]([N:26]3[CH2:30][CH2:29][CH2:28][CH:27]3[CH3:31])=[N:23][C:24]=2[O:17][CH2:16][CH2:15]1)[C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=1

Participants

5

Reactant 3

HCID 962WaterHCID 23665647Potassium tert-butoxideHCID 86648990HCID 86648990, compound

Product 1

HCID 66993118HCID 66993118, compoundYield 85%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent2×

Procedure

To a solution of potassium tert-butoxide (0.68 g) in DMF (5 mL) was added dropwise a solution of 2-(benzyl{[3-chloro-5-(2-methylpyrrolidin-1-yl)pyrazin-2-yl]methyl}amino)ethanol (1.82 g) in DMF (5 mL) at 0° C., and the mixture was stirred for 1.5 hr. Water (10 ml) was added, and the mixture was extracted with ethyl acetate. The aqueous layer was extracted again with ethyl acetate. The combined organic layer was washed with water and saturated brine, dried over magnesium sulfate, and concentrated. The residue was purified by silica gel column chromatography (solvent gradient: 10→33% ethyl acetate/hexane) to give the title compound (1.38 g, 85%) as a pale-yellow oil.

Workup

  1. extractionthe mixture was extracted with ethyl acetate
  2. extractionThe aqueous layer was extracted again with ethyl acetate
  3. washThe combined organic layer was washed with water and saturated brine
  4. dry with materialdried over magnesium sulfate
  5. concentrationconcentrated
  6. customThe residue was purified by silica gel column chromatography (solvent gradient: 10→33% ethyl acetate/hexane)

Sources & evidence

ORD record
ord-e850d862362247619c397f964c39d9d3
Source dataset
uspto-grants-2012_11
Patent number
US08318722B2

Reaction notes

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