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

HRID 2068056Notes

Reaction equation

HRID 2068056 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-d8c0dfb031364f76aa97f36b3511ff2d
Source dataset
uspto-grants-2012_10
Patent number
US08293902B2

Reaction notes

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