Imidazole → HCID 22730429, compound
Reaction equation
[OH:1][CH2:2][CH2:3][NH:4][S:5]([C:8]1[S:9][C:10]2[CH:17]=[CH:16][C:15]([C:18]3[CH:27]=[CH:26][C:21]([C:22]([O:24][CH3:25])=[O:23])=[CH:20][CH:19]=3)=[CH:14][C:11]=2[C:12]=1[CH3:13])(=[O:7])=[O:6].[Si:28](Cl)([C:31]([CH3:34])([CH3:33])[CH3:32])([CH3:30])[CH3:29].N1C=CN=C1>CN(C=O)C.CCOCC>[Si:28]([O:1][CH2:2][CH2:3][NH:4][S:5]([C:8]1[S:9][C:10]2[CH:17]=[CH:16][C:15]([C:18]3[CH:27]=[CH:26][C:21]([C:22]([O:24][CH3:25])=[O:23])=[CH:20][CH:19]=3)=[CH:14][C:11]=2[C:12]=1[CH3:13])(=[O:7])=[O:6])([C:31]([CH3:34])([CH3:33])[CH3:32])([CH3:30])[CH3:29]Participants
6
Reactant 3
Product 1
Reagents, catalysts & solvents 2
Procedure
A solution of Example 398B (200 mg, 0.5 mmol), tert-butyldimethylsilyl chloride (85 mg, 0.55 mmol) and imidazole (36 mg, 0.6 mmol) in DMF (5 mL) at room temperature was stirred for 24 hours, diluted with ether, filtered through a pad of silica gel, and concentrated to provide the desired product.
Workup
- filtrationfiltered through a pad of silica gel
- concentrationconcentrated
Sources & evidence
- ORD record
- ord-b14b0169d9234c6fa45e1127e1047c37
- Source dataset
- uspto-grants-2004_04
- Patent number
- US06720338B2
Reaction notes
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