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Potassium Carbonate → 6-Methoxy-4-(1-methylindol-5-yloxy)-7-(3-(pyrrolidin-1-yl)propoxy)quinazoline

HRID 1791826
Notes
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Reaction equation

HRID 1791826 reaction equation
Cl[C:2]1[C:11]2[C:6](=[CH:7][C:8]([O:14][CH2:15][CH2:16][CH2:17][N:18]3[CH2:22][CH2:21][CH2:20][CH2:19]3)=[C:9]([O:12][CH3:13])[CH:10]=2)[N:5]=[CH:4][N:3]=1.C(=O)([O-])[O-].[K+].[K+].[OH:29][C:30]1[CH:31]=[C:32]2[C:36](=[CH:37][CH:38]=1)[N:35]([CH3:39])[CH:34]=[CH:33]2>CC(N(C)C)=O>[CH3:13][O:12][C:9]1[CH:10]=[C:11]2[C:6](=[CH:7][C:8]=1[O:14][CH2:15][CH2:16][CH2:17][N:18]1[CH2:22][CH2:21][CH2:20][CH2:19]1)[N:5]=[CH:4][N:3]=[C:2]2[O:29][C:30]1[CH:31]=[C:32]2[C:36](=[CH:37][CH:38]=1)[N:35]([CH3:39])[CH:34]=[CH:33]2
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 3

HCID 11430Potassium CarbonateHCID 108445251-Methyl-1H-indol-5-olHCID 111417924-Chloro-6-methoxy-7-(3-pyrrolidin-1-ylpropoxy)quinazoline

Product 1

HCID 220306476-Methoxy-4-(1-methylindol-5-yloxy)-7-(3-(pyrrolidin-1-yl)propoxy)quinazolineYield 46.1%

Reagents, catalysts & solvents 1

HCID 31374
Dimethylacetamide
Solvent

Conditions

Temperature
90 °C

Procedure

Nitrogen was bubbled through a mixture of 4-chloro-6-methoxy-7-(3-(pyrrolidin-1-yl)propoxy)quinazoline (400 mg, 1.24 mmol), (prepared as described for the starting material in Example 9), potassium carbonate (500 mg, 3.62 mmol), 5-hydroxy-1-methylindole (231 mg, 1.57 mmol), (prepared as described for the starting material in Example 291), and DMA (5.0 ml) for 5 minutes. The mixture was then stirred at 90° C. for 3 hours under an atmosphere of nitrogen and allowed to cool to ambient temperature. The reaction mixture was filtered and the filtrate evaporated in vacuo. The residue was purified by column chromatography, gradient elution, with dichloromethane/methanolic ammonia (7M), (100/0 to 90/10) to give 6-methoxy-4-(1-methylindol-5-yloxy)-7-(3-(pyrrolidin-1-yl)propoxy)quinazoline (247 mg, 44%).

Workup

  1. custom(prepared
  2. custom(prepared
  3. customfor 5 minutes
  4. temperatureto cool to ambient temperature
  5. filtrationThe reaction mixture was filtered
  6. customthe filtrate evaporated in vacuo
  7. customThe residue was purified by column chromatography, gradient elution, with dichloromethane/methanolic ammonia (7M), (100/0 to 90/10)

Sources & evidence

ORD record
ord-db4326c8d5f24bc4a6171f81adaa1aae
Source dataset
uspto-grants-2006_07
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US07074800B1

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes