Isopropyl iodide → (1-isopropyl-1H-benzo[d]imidazol-2-yl) (4-(3-morpholinopyrazin-2-yloxy)phenyl)methanone

HRID 887387Notes

Reaction equation

HRID 887387 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]([C:12]1[CH:17]=[CH:16][C:15]([O:18][C:19]2[C:24]([N:25]3[CH2:30][CH2:29][O:28][CH2:27][CH2:26]3)=[N:23][CH:22]=[CH:21][N:20]=2)=[CH:14][CH:13]=1)=[O:11].C(=O)([O-])[O-].[K+].[K+].I[CH:38]([CH3:40])[CH3:39]>CN(C=O)C>[CH:38]([N:1]1[C:5]2[CH:6]=[CH:7][CH:8]=[CH:9][C:4]=2[N:3]=[C:2]1[C:10]([C:12]1[CH:13]=[CH:14][C:15]([O:18][C:19]2[C:24]([N:25]3[CH2:30][CH2:29][O:28][CH2:27][CH2:26]3)=[N:23][CH:22]=[CH:21][N:20]=2)=[CH:16][CH:17]=1)=[O:11])([CH3:40])[CH3:39]

Participants

5

Reactant 3

HCID 6362Isopropyl iodide2×HCID 11430Potassium CarbonateHCID 462079381h-Benzimidazol-2-Yl(4-{[3-(Morpholin-4-Yl)pyrazin-2-Yl]oxy}phenyl)methanone

Product 1

HCID 46207942(1-isopropyl-1H-benzo[d]imidazol-2-yl) (4-(3-morpholinopyrazin-2-yloxy)phenyl)methanone

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

A mixture of (1H-benzo[d]imidazol-2-yl)(4-(3-morpholinopyrazin-2-yloxy)-phenyl)methanone (115 mg, 286 μmol), potassium carbonate (79.2 mg, 573 μmol) and 2-iodopropane (97.4 mg, 573 μmol) in DMF (2 mL) was stirred overnight. Additional isopropyl iodide was added until the starting material was consumed. The mixture was diluted with water and ethyl acetate. The layers were separated and the aqueous layer was extracted with ethyl acetate and the combined organics were washed with brine, dried over Na2SO4, filtered and concentrated. The residue was purified by Biotage™, 10-30% acetone/hexanes gradient, to give (1-isopropyl-1H-benzo[d]imidazol-2-yl) (4-(3-morpholinopyrazin-2-yloxy)phenyl)methanone. MS (ESI, pos. ion) m/z: 444.1 (M+1). IC50 (uM) ++++.

Workup

  1. customwas consumed
  2. additionThe mixture was diluted with water and ethyl acetate
  3. customThe layers were separated
  4. extractionthe aqueous layer was extracted with ethyl acetate
  5. washthe combined organics were washed with brine
  6. dry with materialdried over Na2SO4
  7. filtrationfiltered
  8. concentrationconcentrated
  9. customThe residue was purified by Biotage™, 10-30% acetone/hexanes gradient

Sources & evidence

ORD record
ord-5a0cd9af8f4f49b49524f6cee31856b3
Source dataset
uspto-grants-2012_08
Patent number
US08247418B2

Reaction notes

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