Sodium Hydroxide → HCID 57786337, Verbindung

HRID 1628993Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1628993
[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

Komponenten

6

Edukt 3

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

Produkt 1

HCID 57786337HCID 57786337, Verbindung

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 8028TetrahydrofuranLösungsmittelHCID 8857Ethyl AcetateLösungsmittel

Versuchsvorschrift

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%).

Aufarbeitung

  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

Quellen und Nachweise

ORD-Eintrag
ord-e7ba2d7b40cb459b8719be94e09296e0
Quelldatensatz
uspto-grants-2014_07
Patentnummer
US08785460B2

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