Methyl iodide → benzyl {2-(4-bromophenyl)-1-[5-(2,2-dimethylbutyl)-1-methyl-1H-imidazol-2-yl]ethyl}methylcarbamate

HRID 1881473Notes

Reaction equation

[H-].[Na+].[Br:3][C:4]1[CH:9]=[CH:8][C:7]([CH2:10][CH:11]([NH:24][C:25](=[O:34])[O:26][CH2:27][C:28]2[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=2)[C:12]2[N:13]([CH3:23])[C:14]([CH2:17][C:18]([CH3:22])([CH3:21])[CH2:19][CH3:20])=[CH:15][N:16]=2)=[CH:6][CH:5]=1.[CH3:35]I>O1CCCC1>[Br:3][C:4]1[CH:5]=[CH:6][C:7]([CH2:10][CH:11]([N:24]([CH3:35])[C:25](=[O:34])[O:26][CH2:27][C:28]2[CH:29]=[CH:30][CH:31]=[CH:32][CH:33]=2)[C:12]2[N:13]([CH3:23])[C:14]([CH2:17][C:18]([CH3:21])([CH3:22])[CH2:19][CH3:20])=[CH:15][N:16]=2)=[CH:8][CH:9]=1

Participants

Conditions

Temperature: 0 °C

Procedure

Sodium hydride (60 wt % in mineral oil) (20 mg, 0.47 mmol) was added to a solution of benzyl {2-(4-bromophenyl)-1-[5-(2,2-dimethylbutyl)-1-methyl-1H-imidazol-2-yl]ethyl}carbamate (70 mg, 0.14 mmol) in tetrahydrofuran. After stirring at 0° C. for 10 min, methyl iodide (20 μL, 0.31 mmol) was added and the reaction allowed to warm to ambient temperature. The reaction mixture was quenched with water and extracted with ethyl acetate. The combined organic extracts were dried (magnesium sulfate) and concentrated in vacuo to afford benzyl {2-(4-bromophenyl)-1-[5-(2,2-dimethylbutyl)-1-methyl-1H-imidazol-2-yl]ethyl}methylcarbamate which was used in the subsequent step without further purification.

Workup

temperatureto warm to ambient temperature
customThe reaction mixture was quenched with water
extractionextracted with ethyl acetate
dry with materialThe combined organic extracts were dried (magnesium sulfate)
concentrationconcentrated in vacuo

Sources & evidence

ORD record: ord-ec818460c4d24322b427a0bc9a4f95bc
Source dataset: uspto-grants-2012_11
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08318767B2

Reaction notes

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