1,3-Dibromopropane → HCID 22667213, compound

HRID 1008444Notes

Reaction equation

HRID 1008444 reaction equation
[Cl:1][C:2]1[CH:7]=[C:6]([O:8][C:9]2[C:18]3[C:13](=[CH:14][C:15]([O:20][CH3:21])=[C:16]([OH:19])[CH:17]=3)[N:12]=[CH:11][N:10]=2)[CH:5]=[CH:4][C:3]=1[NH:22][C:23]([NH:25][CH2:26][CH2:27][CH3:28])=[O:24].C(=O)([O-])[O-].[K+].[K+].[Br:35][CH2:36][CH2:37]CBr>CN(C)C=O>[Br:35][CH2:36][CH2:37][O:19][C:16]1[CH:17]=[C:18]2[C:13](=[CH:14][C:15]=1[O:20][CH3:21])[N:12]=[CH:11][N:10]=[C:9]2[O:8][C:6]1[CH:5]=[CH:4][C:3]([NH:22][C:23]([NH:25][CH2:26][CH2:27][CH3:28])=[O:24])=[C:2]([Cl:1])[CH:7]=1

Participants

5

Reactant 3

HCID 80011,3-DibromopropaneHCID 11430Potassium CarbonateHCID 22667036HCID 22667036, compound

Product 1

HCID 22667213HCID 22667213, compoundYield 71%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

N-{2-Chloro-4-[(6-hydroxy-7-methoxy-4-quinazolinyl)oxy]phenyl}-N′-propylurea (500 mg), potassium carbonate (857 mg), and 1,3-dibromopropane (0.5 ml) were dissolved in N,N-dimethylformamide (5 ml), and the solution was stirred at room temperature for 3 hr. The solvent was removed by distillation under the reduced pressure. Water was added to the residue, and the mixture was extracted with chloroform/2-propanol (4/1). The organic layer was dried over anhydrous sodium kp sulfate. The solvent was removed by distillation under the reduced pressure. The residue was washed with ether to give 451 mg (yield 71%) of N-(4-{[6-(2-bromoethoxy)-7-methoxy-4-quinazolinyl]oxy}-2-chlorophenyl}-N′-propyl-urea. N-(4-{[6-(2-Bromoethoxy)-7-methoxy-4-quinazolinyl]oxy}-2-chlorophenyl}-N′-propylurea (50 mg), (3 potassium carbonate (40 mg), and N-methylpiperazine (50 μl) were dissolved in N,N-dimethylformamide (1 ml), and the solution was stirred at room temperature overnight. The solvent was removed by distillation under the reduced pressure. A saturated aqueous sodium hydrogencarbonate solution was added to the residue, and the mixture was extracted with chloroform. The organic layer was dried over anhydrous sodium sulfate. The solvent was removed by distillation under the reduced pressure. The residue was purified by chromatography on silica gel by development with chloroform/methanol to give 20 mg (yield 44%) of the title compound.

Workup

  1. customThe solvent was removed by distillation under the reduced pressure
  2. additionWater was added to the residue
  3. extractionthe mixture was extracted with chloroform/2-propanol (4/1)
  4. dry with materialThe organic layer was dried over anhydrous sodium
  5. customThe solvent was removed by distillation under the reduced pressure
  6. washThe residue was washed with ether

Sources & evidence

ORD record
ord-71cc09f4b2174e1da8f1192a2a7abf5a
Source dataset
uspto-grants-2004_09
Patent number
US06797823B1

Reaction notes

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