Triethylamine → HCID 57786125, compound

HRID 1628865Notes

Reaction equation

HRID 1628865 reaction equation
[Cl:1][C:2]1[C:10]2[N:9]=[C:8]([NH:11][C:12]3[CH:17]=[CH:16][C:15]([O:18][CH3:19])=[CH:14][C:13]=3[Cl:20])[N:7]([CH2:21][CH2:22][CH2:23][CH2:24]O)[C:6]=2[C:5](C(OC)=O)=[CH:4][CH:3]=1.[CH2:30](N(CC)CC)C.CS(Cl)(=O)=O.[C:42](=[O:45])([O-])[O-:43].[K+].[K+]>O1CCCC1.C(OCC)(=O)C>[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([C:42]([O:43][CH3:30])=[O:45])=[C:6]2[C:10]=1[N:9]=[C:8]1[N:11]([C:12]3[CH:17]=[CH:16][C:15]([O:18][CH3:19])=[CH:14][C:13]=3[Cl:20])[CH2:24][CH2:23][CH2:22][CH2:21][N:7]21

Participants

7

Reactant 4

HCID 8471TriethylamineHCID 11430Potassium CarbonateHCID 31297Methanesulfonyl chlorideHCID 68771405HCID 68771405, compound

Product 1

HCID 57786125HCID 57786125, compoundYield 94.3%

Reagents, catalysts & solvents 2

HCID 8028TetrahydrofuranSolventHCID 8857Ethyl AcetateSolvent2×

Conditions

Temperature
80 °C

Procedure

To a stirred solution of methyl 4-chloro-2-[(2-chloro-4-methoxyphenyl)amino]-1-(4-hydroxybutyl)-1H-benzimidazole-7-carboxylate (Reference example 169, 1.31 g, 2.98 mmol) and triethylamine (1.04 mL, 7.45 mmol) in tetrahydrofuran (15 mL) was added methanesulfonyl chloride (277 μL, 3.58 mol) at 0° C. After 15 min, the reaction mixture was diluted with ethyl acetate, washed with brine, dried over sodium sulfate, filtered, and concentrated in vacuo. The residue was dissolved in N,N-dimethylformamide (30 mL) and potassium carbonate (1.24 g, 8.94 mmol) was added. After being stirred for 1 h at 80° C., the reaction mixture was diluted with ethyl acetate, washed with water and brine, dried over sodium sulfate, filtered and concentrated in vacuo. The resulting solid was washed with diisopropyl ether to give the title compound as a colorless solid (1.18 g, 2.81 mmol, 94%).

Workup

  1. washwashed with brine
  2. dry with materialdried over sodium sulfate
  3. filtrationfiltered
  4. concentrationconcentrated in vacuo
  5. dissolutionThe residue was dissolved in N,N-dimethylformamide (30 mL)
  6. washwashed with water and brine
  7. dry with materialdried over sodium sulfate
  8. filtrationfiltered
  9. concentrationconcentrated in vacuo
  10. washThe resulting solid was washed with diisopropyl ether

Sources & evidence

ORD record
ord-0bec29aeccef4a589b999455f4435dad
Source dataset
uspto-grants-2014_07
Patent number
US08785460B2

Reaction notes

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