Ethanol → HCID 18331373, compound
Reaction equation
[Br:1][C:2]1[C:3]([Cl:21])=[C:4]([CH2:12][NH:13][C:14]([O:16][C:17]([CH3:20])([CH3:19])[CH3:18])=[O:15])[C:5](F)=[C:6]([N+:8]([O-:10])=[O:9])[CH:7]=1.[CH2:22]([OH:24])[CH3:23].O1CCCC1.[H-].[Na+]>CCOCC.O>[Br:1][C:2]1[C:3]([Cl:21])=[C:4]([CH2:12][NH:13][C:14]([O:16][C:17]([CH3:20])([CH3:19])[CH3:18])=[O:15])[C:5]([O:24][CH2:22][CH3:23])=[C:6]([N+:8]([O-:10])=[O:9])[CH:7]=1Participants
7
Reactant 4
Product 1
Reagents, catalysts & solvents 2
Conditions
- Temperature
- 0 °C
Procedure
To a mixture of the compound (200 mg) obtained in Example 519c, ethanol (36 μl) and tetrahydrofuran (5 ml), sodium hydride (content, 60%; 25 mg) was added under ice cooling. The reaction mixture was stirred at 0° C. for 2 h and then water and ether were added. The organic layer was washed with water and a saturated aqueous sodium chloride solution sequentially, then dried with anhydrous sodium sulfate and concentrated under reduced pressure. The resulting residue was purified by silica gel column chromatography (eluent, ethyl acetate:n-hexane=1:4) to give 197 mg of the titled compound (yield, 92%).
Workup
- additionwas added under ice cooling
- washThe organic layer was washed with water
- dry with materiala saturated aqueous sodium chloride solution sequentially, then dried with anhydrous sodium sulfate
- concentrationconcentrated under reduced pressure
- customThe resulting residue was purified by silica gel column chromatography (eluent, ethyl acetate:n-hexane=1:4)
Sources & evidence
- ORD record
- ord-fd6b5cf2775b4ed1af2f21e11f76ad62
- Source dataset
- uspto-grants-2001_12
- Patent number
- US06331553B1
Reaction notes
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