Potassium Carbonate → HCID 22625014, compound
Reaction equation
[Cl:1][C:2]1[CH:21]=[CH:20][C:5]([NH:6][C:7]2[C:16]3[C:11](=[CH:12][C:13]([OH:19])=[C:14]([O:17][CH3:18])[CH:15]=3)[N:10]=[CH:9][N:8]=2)=[C:4]([F:22])[CH:3]=1.Cl.Cl[CH2:25][CH2:26][CH2:27][O:28][C:29]1[CH:34]=[CH:33][N:32]=[CH:31][CH:30]=1.C(=O)([O-])[O-].[K+].[K+]>CN1C(=O)CCC1.O>[Cl:1][C:2]1[CH:21]=[CH:20][C:5]([NH:6][C:7]2[C:16]3[C:11](=[CH:12][C:13]([O:19][CH2:25][CH2:26][CH2:27][O:28][C:29]4[CH:34]=[CH:33][N:32]=[CH:31][CH:30]=4)=[C:14]([O:17][CH3:18])[CH:15]=3)[N:10]=[CH:9][N:8]=2)=[C:4]([F:22])[CH:3]=1Participants
6
Conditions
- Temperature
- 90 °C
Procedure
A mixture of 4-(4-chloro-2-fluoroanilino)-7-hydroxy-6-methoxyquinazoline (350 mg, 1.0 mmol), (prepared as described for the starting material in Example 24), 4-(3-chloropropoxy)pyridine hydrochloride (206 mg, 1.0 mmol) and potassium carbonate (303 mg, 2.2 mmol) in NMP (20 ml) was heated at 90° C. for 2 hours. The mixture was allowed to cool, diluted with water and extracted with ethyl acetate. The combined extracts were washed with water, dried (MgSO4) and the solvent removed by evaporation. The residue was purified by column chromatography eluting with methylene chloride/methanol mixtures (100/0 increasing to 95/5) to give 4-(4-chloro-2-fluoroanilino)-6-methoxy-7-(3-(4-pyridyloxy)propoxy)quinazoline (257 mg, 56%).
Workup
- custom(prepared
- temperatureto cool
- extractionextracted with ethyl acetate
- washThe combined extracts were washed with water
- dry with materialdried (MgSO4)
- customthe solvent removed by evaporation
- customThe residue was purified by column chromatography
- washeluting with methylene chloride/methanol mixtures (100/0 increasing to 95/5)
Sources & evidence
- ORD record
- ord-3a43cbfc97ba4d51b4f61ec57d1b6601
- Source dataset
- uspto-grants-1999_10
- Patent number
- US05962458
Reaction notes
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