Imidazole → 2-Benzyl-5-[[5-(4-bromo-phenyl)-3-methyl-isoxazol-4-yl]-(tert-butyl-dimethyl-silanyloxy)-methyl]-[1,3,4]oxadiazole

HRID 1183381Notes

Reaction equation

HRID 1183381 reaction equation
[CH2:1]([C:8]1[O:12][C:11]([CH:13]([C:15]2[C:16]([CH3:27])=[N:17][O:18][C:19]=2[C:20]2[CH:25]=[CH:24][C:23]([Br:26])=[CH:22][CH:21]=2)[OH:14])=[N:10][N:9]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[Si:28](Cl)([C:31]([CH3:34])([CH3:33])[CH3:32])([CH3:30])[CH3:29].N1C=CN=C1.CCOC(C)=O>CN(C=O)C>[CH2:1]([C:8]1[O:12][C:11]([CH:13]([C:15]2[C:16]([CH3:27])=[N:17][O:18][C:19]=2[C:20]2[CH:21]=[CH:22][C:23]([Br:26])=[CH:24][CH:25]=2)[O:14][Si:28]([C:31]([CH3:34])([CH3:33])[CH3:32])([CH3:30])[CH3:29])=[N:10][N:9]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

Participants

6

Reactant 4

HCID 795ImidazoleHCID 8857Ethyl AcetateHCID 28928tert-Butyldimethylsilyl chlorideHCID 66577613(5-Benzyl-[1,3,4]oxadiazol-2-yl)-[5-(4-bromo-phenyl)-3-methyl-isoxazol-4-yl]-methanol

Product 1

HCID 665798972-Benzyl-5-[[5-(4-bromo-phenyl)-3-methyl-isoxazol-4-yl]-(tert-butyl-dimethyl-silanyloxy)-methyl]-[1,3,4]oxadiazole

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

(5-Benzyl-[1,3,4]oxadiazol-2-yl)-[5-(4-bromo-phenyl)-3-methyl-isoxazol-4-yl]-methanol (0.537 g, 1.26 mmol), tert-butyldimethylsilyl chloride (0.209 g, 3.78 mmol) and imidazole (0.095 g, 3.78 mmol) were combined in DMF (8 mL) and stirred at room temperature for 72 hours. Standard aqueous workup and silica gel chromatography (0-10% EtOAc in hexanes) gave the title compound.

Sources & evidence

ORD record
ord-aa6f7e0307684177aa7469439a0e3483
Source dataset
uspto-grants-2014_03
Patent number
US08664220B2

Reaction notes

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