Sodium Hydroxide → HCID 57786337, compound

HRID 1399345Notes

Reaction equation

HRID 1399345 reaction equation
[Cl:1][C:2]1[CH:7]=[C:6]([Cl:8])[CH:5]=[CH:4][C:3]=1[CH:9]([OH:30])[C:10]1[N:14]([CH2:15][CH2:16][C:17]([O:19]C)=O)[C:13]2[C:21]([N:25]([CH2:28][CH3:29])[CH2:26][CH3:27])=[CH:22][CH:23]=[CH:24][C:12]=2[N:11]=1.[OH-].[Na+].Cl.C(N=C=NCCCN(C)C)C>O1CCCC1.C(OCC)(=O)C>[Cl:1][C:2]1[CH:7]=[C:6]([Cl:8])[CH:5]=[CH:4][C:3]=1[CH:9]1[C:10]2=[N:11][C:12]3[CH:24]=[CH:23][CH:22]=[C:21]([N:25]([CH2:28][CH3:29])[CH2:26][CH3:27])[C:13]=3[N:14]2[CH2:15][CH2:16][C:17](=[O:19])[O:30]1

Participants

6

Reactant 3

HCID 14798Sodium HydroxideHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 68772648HCID 68772648, compound

Product 1

HCID 57786337HCID 57786337, compound

Reagents, catalysts & solvents 2

HCID 8028TetrahydrofuranSolventHCID 8857Ethyl AcetateSolvent

Procedure

To a stirred solution of methyl 3-{2-[(2,4-dichlorophenyl)(hydroxy)methyl]-7-(diethylamino)-1H-benzimidazol-1-yl}propanoate (92.9 mg, 0.200 mmol) in tetrahydrofuran (1 mL) was added aqueous sodium hydroxide (8 M, 0.05 mL) at room temperature. After 2 h, the reaction mixture was concentrated in vacuo. The residue was dissolved in N,N-dimethylformamide (2 mL) and 1-ethyl-3-(3-dimethylaminopropyl)-carbodiimide hydrochloride (76.7 mg, 0.400 mmol) was added at room temperature. After 6 h, the reaction mixture was diluted with ethyl acetate, washed with water and brine, dried over sodium sulfate, filtered, and concentrated in vacuo. The residue was purified by column chromatography on silica gel eluting with a 0-30% ethyl acetate/n-hexane gradient mixture to afford the desired product as colorless amorphous (44.6 mg, 0.107 mmol, 53%).

Workup

  1. concentrationthe reaction mixture was concentrated in vacuo
  2. dissolutionThe residue was dissolved in N,N-dimethylformamide (2 mL)
  3. waitAfter 6 h
  4. washwashed with water and brine
  5. dry with materialdried over sodium sulfate
  6. filtrationfiltered
  7. concentrationconcentrated in vacuo
  8. customThe residue was purified by column chromatography on silica gel eluting with a 0-30% ethyl acetate/n-hexane gradient mixture

Sources & evidence

ORD record
ord-88b5bd5634ab4451a18ebedb0ffbc843
Source dataset
uspto-grants-2014_12
Patent number
US08901141B2

Reaction notes

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