Water → N-(5-(6,7-Dimethoxyquinolin-4-yloxy)pyridin-2-yl)-N'-phenylurea

HRID 853357Notes

Reaction equation

HRID 853357 reaction equation
[CH3:1][O:2][C:3]1[CH:4]=[C:5]2[C:10](=[CH:11][C:12]=1[O:13][CH3:14])[N:9]=[CH:8][CH:7]=[C:6]2[O:15][C:16]1[CH:17]=[CH:18][C:19]([NH2:22])=[N:20][CH:21]=1.[C:23]1([N:29]=[C:30]=[O:31])[CH:28]=[CH:27][CH:26]=[CH:25][CH:24]=1.C(OCC)(=O)C.O>CN(C)C=O.CO>[CH3:1][O:2][C:3]1[CH:4]=[C:5]2[C:10](=[CH:11][C:12]=1[O:13][CH3:14])[N:9]=[CH:8][CH:7]=[C:6]2[O:15][C:16]1[CH:17]=[CH:18][C:19]([NH:22][C:30]([NH:29][C:23]2[CH:28]=[CH:27][CH:26]=[CH:25][CH:24]=2)=[O:31])=[N:20][CH:21]=1

Participants

7

Reactant 4

HCID 962WaterHCID 7672Phenyl isocyanateHCID 8857Ethyl Acetate2×HCID 229365375-(6,7-Dimethoxyquinolin-4-yloxy)pyridin-2-amine

Product 1

HCID 22936706N-(5-(6,7-Dimethoxyquinolin-4-yloxy)pyridin-2-yl)-N'-phenylureaYield 73%

Reagents, catalysts & solvents 2

HCID 887MethanolSolventHCID 6228DimethylformamideSolvent

Procedure

5-(6,7-Dimethoxyquinolin-4-yloxy)pyridin-2-ylamine (29.7 mg, 0.100 mmol) and phenyl isocyanate (13.1 mg, 0.110 mmol) were stirred in dimethylformamide (1 ml) at room temperature for 18 hours. The reaction solution was distributed between ethyl acetate and water, the organic layer was washed with water and saturated brine and dried over anhydrous magnesium sulfate, the drying agent was filtered off and the filtrate was distilled off under reduced pressure. The obtained crude product was subjected to silica gel column chromatography (eluent—ethyl acetate:methanol=20:1), and the fraction containing the target substance was concentrated, suspended in ethyl acetate and diluted with hexane, after which the crystals were filtered out, washed with hexane and then blow-dried to obtain the title compound (30.4 mg, 0.073 mmol, 73%) as colorless crystals.

Workup

  1. washthe organic layer was washed with water and saturated brine
  2. dry with materialdried over anhydrous magnesium sulfate
  3. filtrationthe drying agent was filtered off
  4. distillationthe filtrate was distilled off under reduced pressure
  5. customThe obtained crude product
  6. additionthe fraction containing the target substance
  7. concentrationwas concentrated
  8. additiondiluted with hexane
  9. filtrationafter which the crystals were filtered out
  10. washwashed with hexane
  11. customblow-dried

Sources & evidence

ORD record
ord-0ec30cf0889940b897047ff0f9bf143a
Source dataset
uspto-grants-2007_08
Patent number
US07253286B2

Reaction notes

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