Potassium Iodide → HCID 22106100, compound
Reaction equation
[CH3:1][O:2][C:3]1[CH:4]=[C:5]([C:9]2[C:18]3[C:13](=[N:14][CH:15]=[CH:16][CH:17]=3)[NH:12][C:11](=[O:19])[C:10]=2[NH:20][C:21]([NH:23][C:24]2[C:29]([CH:30]([CH3:32])[CH3:31])=[CH:28][CH:27]=[CH:26][C:25]=2[CH:33]([CH3:35])[CH3:34])=[O:22])[CH:6]=[CH:7][CH:8]=1.C(=O)([O-])[O-].[K+].[K+].[I-].[K+].Br[CH2:45][CH:46]1[CH2:48][CH2:47]1>CN(C=O)C.O>[CH:46]1([CH2:45][N:12]2[C:13]3[C:18](=[CH:17][CH:16]=[CH:15][N:14]=3)[C:9]([C:5]3[CH:6]=[CH:7][CH:8]=[C:3]([O:2][CH3:1])[CH:4]=3)=[C:10]([NH:20][C:21]([NH:23][C:24]3[C:29]([CH:30]([CH3:31])[CH3:32])=[CH:28][CH:27]=[CH:26][C:25]=3[CH:33]([CH3:35])[CH3:34])=[O:22])[C:11]2=[O:19])[CH2:48][CH2:47]1Participants
Procedure
To a solution of N-[4-(3-methoxyphenyl)-1,2-dihydro-2-oxo-1,8-naphthyridin-3-yl]-N'-(2,6-diisopropylphenyl)urea (400 mg, 0.85 mmol) in DMF (10 ml) were added potassium carbonate (141 mg, 1.02 mmol), potassium iodide (28 mg, 0.17 mmol), and (bromomethyl)cyclopropane (138 mg, 1.02 mmol), and the mixture was stirred at 40°-50° C. for 10 hours. After allowed to stand for cooling, the mixture was poured into water, and the mixture was extracted with ethyl acetate. The extract was washed with water, washed with a saturated aqueous sodium chloride solution, and dried over anhydrous magnesium sulfate. The resultant was concentrated under reduced pressure, and the residue was purified by silica gel column chromatography (1% methanol in chloroform), and crystallized from ether to give the title compound (354 mg, 0.67 mmol) as a colorless crystal.
Workup
- temperaturefor cooling
- extractionthe mixture was extracted with ethyl acetate
- washThe extract was washed with water
- washwashed with a saturated aqueous sodium chloride solution
- dry with materialdried over anhydrous magnesium sulfate
- concentrationThe resultant was concentrated under reduced pressure
- customthe residue was purified by silica gel column chromatography (1% methanol in chloroform)
- customcrystallized from ether
Sources & evidence
- ORD record
- ord-2c6510b047924b3c851f71236e6a2a6f
- Source dataset
- uspto-grants-1998_12
- Patent number
- US05843957
Reaction notes
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