Potassium Carbonate → 6-Benzyloxy-4-(4-fluoroindol-5-yloxy)-7-methoxyquinazoline

HRID 916412Notes

Reaction equation

HRID 916412 reaction equation
[CH2:1]([O:8][C:9]1[CH:10]=[C:11]2[C:16](=[CH:17][C:18]=1[O:19][CH3:20])[N:15]=[CH:14][N:13]=[C:12]2Cl)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[F:22][C:23]1[C:31]([OH:32])=[CH:30][CH:29]=[C:28]2[C:24]=1[CH:25]=[CH:26][NH:27]2.C(=O)([O-])[O-].[K+].[K+]>CN(C=O)C>[CH2:1]([O:8][C:9]1[CH:10]=[C:11]2[C:16](=[CH:17][C:18]=1[O:19][CH3:20])[N:15]=[CH:14][N:13]=[C:12]2[O:32][C:31]1[C:23]([F:22])=[C:24]2[C:28](=[CH:29][CH:30]=1)[NH:27][CH:26]=[CH:25]2)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

Participants

5

Reactant 3

HCID 11430Potassium CarbonateHCID 114265806-(Benzyloxy)-4-chloro-7-methoxyquinazolineHCID 220305534-fluoro-1H-indol-5-ol

Product 1

HCID 589602306-Benzyloxy-4-(4-fluoroindol-5-yloxy)-7-methoxyquinazolineYield 67%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Conditions

Temperature
95 °C

Procedure

A mixture of 6-benzyloxy-4-chloro-7-methoxyquinazoline (0.88 g, 2.9 mmol), (EP1153920 production examples 28-30), 4-fluoro-5-hydroxyindole (0.53 g, 3.5 mmol) and potassium carbonate (0.607 g, 4.39 mmol) in DMF (18 ml) was stirred at 95° C. for 2 hours. After cooling, the mixture was filtered and the volatiles were removed under vacuum. The residue was purified by column chromatography eluting with increasingly polar mixtures of methylene chloride and ethyl acetate to give 6-benzyloxy-4-(4-fluoroindol-5-yloxy)-7-methoxyquinazoline (0.8 g, 67%).

Workup

  1. temperatureAfter cooling
  2. filtrationthe mixture was filtered
  3. customthe volatiles were removed under vacuum
  4. customThe residue was purified by column chromatography
  5. washeluting
  6. temperaturewith increasingly polar mixtures of methylene chloride and ethyl acetate

Sources & evidence

ORD record
ord-d3be98f3dde441d897163705fe11fd16
Source dataset
uspto-grants-2007_09
Patent number
US07268230B2

Reaction notes

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