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Acetonitrile → 4-({[3-Butyl-5-(4-methoxy-phenyl)-2-phenyl-3H-imidazol-4-ylmethyl]cyclohexylmethyl-amino}-methyl)-2-acetoxy-benzoic acid tert-butyl ester

HRID 457388
Notes
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Reaction equation

HRID 457388 reaction equation
[CH2:1]([N:5]1[C:9]([CH2:10][NH:11][CH2:12][CH:13]2[CH2:18][CH2:17][CH2:16][CH2:15][CH2:14]2)=[C:8]([C:19]2[CH:24]=[CH:23][C:22]([O:25][CH3:26])=[CH:21][CH:20]=2)[N:7]=[C:6]1[C:27]1[CH:32]=[CH:31][CH:30]=[CH:29][CH:28]=1)[CH2:2][CH2:3][CH3:4].[C:33]([O:37][C:38]([C:40]1[CH:47]=[CH:46][C:43]([CH2:44]Br)=[CH:42][CH:41]=1)=[O:39])([CH3:36])([CH3:35])[CH3:34].[C:48](=[O:51])([O-])[O-:49].[K+].[K+].[C:54](#N)C>>[C:33]([O:37][C:38](=[O:39])[C:40]1[CH:47]=[CH:46][C:43]([CH2:44][N:11]([CH2:10][C:9]2[N:5]([CH2:1][CH2:2][CH2:3][CH3:4])[C:6]([C:27]3[CH:32]=[CH:31][CH:30]=[CH:29][CH:28]=3)=[N:7][C:8]=2[C:19]2[CH:20]=[CH:21][C:22]([O:25][CH3:26])=[CH:23][CH:24]=2)[CH2:12][CH:13]2[CH2:18][CH2:17][CH2:16][CH2:15][CH2:14]2)=[CH:42][C:41]=1[O:49][C:48](=[O:51])[CH3:54])([CH3:36])([CH3:35])[CH3:34]
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 4

HCID 6342AcetonitrileHCID 11430Potassium CarbonateHCID 11414578Tert-butyl 4-(bromomethyl)benzoateHCID 58818024[3-Butyl-5-(4-methoxy-phenyl)-2-phenyl-3H-imidazol-4-ylmethyl]-cyclohexylmethyl-amine

Product 1

HCID 588179794-({[3-Butyl-5-(4-methoxy-phenyl)-2-phenyl-3H-imidazol-4-ylmethyl]cyclohexylmethyl-amino}-methyl)-2-acetoxy-benzoic acid tert-butyl ester

Procedure

To a solution of 4-({[3-Butyl-5-(4-methoxy-phenyl)-2-phenyl-3H-imidazol-4-ylmethyl]-cyclohexylmethyl-amine (4.0 g, 9.31 mmol) and 3-acetoxy]-4-tert-butoxycarbonyl-benzyl bromide (3.37 g, 10.24 mmol, 1.1 eq.) in 50 ml anhydrous acetonitrile is added anhydrous potassium carbonate (2.82 g, 20.5 mmol, 2.2 eq.), the resulting mixture is stirred at room temperature for 1 h, then raised to 50° C., stirred overnight. The solid precipitate is filtered off, washed with ethyl acetate, the combined organics is concentrated to dryness, purified through silica gel flash chromatography to give 3.99 g of 4-({[3-Butyl-5-(4-methoxy-phenyl)-2-phenyl-3H-imidazol-4-ylmethyl]-cyclohexylmethyl-amino}-methyl)-2-acetoxy-benzoic acid tert-butyl ester MS (+VE) m/z 680 (M+1).

Workup

  1. temperatureraised to 50° C.
  2. stirringstirred overnight
  3. filtrationThe solid precipitate is filtered off
  4. washwashed with ethyl acetate
  5. concentrationthe combined organics is concentrated to dryness
  6. custompurified through silica gel flash chromatography

Sources & evidence

ORD record
ord-52c69b805f1242aea9464bb49dcf943e
Source dataset
uspto-grants-2007_03
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US07186734B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes