1,2-Dichloroethane → HCID 178436593, compound

HRID 1874905Notes

Reaction equation

HRID 1874905 reaction equation
[NH2:1][CH2:2][C:3]1[C:4]([F:21])=[C:5]([O:10][C:11]2[CH:12]=[C:13]([CH:16]=[C:17]([CH2:19][CH3:20])[CH:18]=2)[C:14]#[N:15])[C:6]([Cl:9])=[CH:7][CH:8]=1.[Br:22][C:23]1[N:24]=[C:25]([CH3:31])[NH:26][C:27]=1[C:28](O)=[O:29].CCN(C(C)C)C(C)C.C(Cl)CCl>>[Br:22][C:23]1[N:24]=[C:25]([CH3:31])[NH:26][C:27]=1[C:28]([NH:1][CH2:2][C:3]1[CH:8]=[CH:7][C:6]([Cl:9])=[C:5]([O:10][C:11]2[CH:18]=[C:17]([CH2:19][CH3:20])[CH:16]=[C:13]([C:14]#[N:15])[CH:12]=2)[C:4]=1[F:21])=[O:29]

Participants

5

Reactant 4

HCID 111,2-DichloroethaneHCID 81531DiisopropylethylamineHCID 68485225HCID 68485225, compoundHCID 1784324484-bromo-2-methyl-1H-imidazole-5-carboxylic acid

Product 1

HCID 178436593HCID 178436593, compoundYield 63.2%

Procedure

3-{[3-(aminomethyl)-6-chloro-2-fluorophenyl]oxy}-5-ethylbenzonitrile (0.053 g, 0.174 mmol), 4-bromo-2-methyl-1H-imidazole-5-carboxylic acid (0.036 g, 0.174 mmol) and DIEA (0.061 mL, 0.348 mmol) were combined and treated with EDC (0.067 g, 0.348 mmol) at 25° C. overnight with stirring. The reaction mixture was concentrated to dryness and partitioned between EtOAc and water. The organic phase was isolated, dried over MgSO4, filtered and concentrated to dryness. The residue was purified on 40 g silica gel eluted with 0 to 10% CH3OH/DCM to give 4-bromo-N-({4-chloro-3-[(3-cyano-5-ethylphenyl)oxy]-2-fluorophenyl}methyl)-2-methyl-1H-imidazole-5-carboxamide (0.054 g, 0.110 mmol, 63.1%) as a white solid. 1H NMR (400 MHz, DMSO-d6+1 drop D2O) δ ppm 7.40-7.51 (m, 2H), 7.32 (t, J=7.83 Hz, 1H), 7.14 (d, J=6.73 Hz, 2H), 4.47 (s, 2H), 2.62 (q, J=7.51 Hz, 2H), 2.24 (s, 3H), 1.12 (t, J=7.49 Hz, 3H). LC-MS (ES−) m/z 488.97, 490.93, 492.87 [M−1]. LC-MS (ES+) m/z 491.10, 493.10, 495.07 [M+H].

Workup

  1. concentrationThe reaction mixture was concentrated to dryness
  2. custompartitioned between EtOAc and water
  3. customThe organic phase was isolated
  4. dry with materialdried over MgSO4
  5. filtrationfiltered
  6. concentrationconcentrated to dryness
  7. customThe residue was purified on 40 g silica gel
  8. washeluted with 0 to 10% CH3OH/DCM

Sources & evidence

ORD record
ord-882b874853ae4411add6ab40f9277cd5
Source dataset
uspto-grants-2012_11
Patent number
US08304419B2

Reaction notes

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