Water → HCID 66858363, compound
Reaction equation
[Si:1]([O:8][CH2:9][C@H:10]1[CH2:14][CH2:13][C:12](=[O:15])[N:11]1[CH2:16][C:17]1[S:18][CH:19]=[C:20](/[CH:22]=[CH:23]/[C:24]([OH:26])=[O:25])[N:21]=1)([C:4]([CH3:7])([CH3:6])[CH3:5])([CH3:3])[CH3:2].[CH2:27](I)[CH2:28][CH2:29][CH3:30].C(=O)([O-])[O-].[K+].[K+].O>CN(C)C=O>[Si:1]([O:8][CH2:9][C@H:10]1[CH2:14][CH2:13][C:12](=[O:15])[N:11]1[CH2:16][C:17]1[S:18][CH:19]=[C:20](/[CH:22]=[CH:23]/[C:24]([O:26][CH2:27][CH2:28][CH2:29][CH3:30])=[O:25])[N:21]=1)([C:4]([CH3:7])([CH3:5])[CH3:6])([CH3:2])[CH3:3]Participants
6
Reactant 4
Product 1
Reagents, catalysts & solvents 1
Procedure
To a solution of the compound 72 (980 mg) in dimethylformamide (3.00 mL) was added n-butyl iodide (570 μL) at room temperature and then thereto was added potassium carbonate (691 mg) at 0° C. The solution was stirred at room temperature overnight. Water was added to the reaction solution, which was extracted with ethyl acetate. The organic layer was washed water and brine, dried over anhydrous sodium sulfate and concentrated. The organic residue was purified by column chromatography on silica gel (n-hexane:ethyl acetate=78:22→50:50) to give the title compound (960 mg) having the following physical data.
Workup
- extractionwas extracted with ethyl acetate
- washThe organic layer was washed water and brine
- dry with materialdried over anhydrous sodium sulfate
- concentrationconcentrated
- customThe organic residue was purified by column chromatography on silica gel (n-hexane:ethyl acetate=78:22→50:50)
Sources & evidence
- ORD record
- ord-f7b71c666047434abbdd8d4eb29baa23
- Source dataset
- uspto-grants-2013_08
- Patent number
- US08501793B2
Reaction notes
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