Formic Acid → 6-Chloro-2-ethyl-5-(methylamino)-1-(4-{2-[({[(4-methylphenyl)sulfonyl]amino}carbonyl)amino]ethyl}phenyl)-1H-benzimidazole

HRID 50457Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 50457
[C:1](OC(=O)C)(=O)C.C(O)=O.[Cl:11][C:12]1[C:13]([NH:45]S(C)(=O)=O)=[CH:14][C:15]2[N:19]=[C:18]([CH2:20][CH3:21])[N:17]([C:22]3[CH:27]=[CH:26][C:25]([CH2:28][CH2:29][NH:30][C:31]([NH:33][S:34]([C:37]4[CH:42]=[CH:41][C:40]([CH3:43])=[CH:39][CH:38]=4)(=[O:36])=[O:35])=[O:32])=[CH:24][CH:23]=3)[C:16]=2[CH:44]=1>C1COCC1>[Cl:11][C:12]1[C:13]([NH:45][CH3:1])=[CH:14][C:15]2[N:19]=[C:18]([CH2:20][CH3:21])[N:17]([C:22]3[CH:27]=[CH:26][C:25]([CH2:28][CH2:29][NH:30][C:31]([NH:33][S:34]([C:37]4[CH:38]=[CH:39][C:40]([CH3:43])=[CH:41][CH:42]=4)(=[O:36])=[O:35])=[O:32])=[CH:24][CH:23]=3)[C:16]=2[CH:44]=1

Komponenten

5

Edukt 3

HCID 284Formic AcidHCID 7918Acetic AnhydrideHCID 21875777HCID 21875777, Verbindung

Produkt 1

HCID 218758116-Chloro-2-ethyl-5-(methylamino)-1-(4-{2-[({[(4-methylphenyl)sulfonyl]amino}carbonyl)amino]ethyl}phenyl)-1H-benzimidazoleAusbeute 67 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 8028TetrahydrofuranLösungsmittel2×

Reaktionsbedingungen

Temperatur
60 °C

Versuchsvorschrift

A solution of acetic anhydride (0.14 ml) in THF (5 ml) was added formic acid (0.06 ml, 1.65 mmol) at 0° C. under nitrogen and the mixture was stirred at 60° C. for 2 h. Then the mixture was recooled to 0° C. and was added 6-Chloro-1-[4-(2-chloroethyl)phenyl]-2-ethyl-1H-benzimidazol-5-ylamine (Example 110, step 6, 100 mg, 0.3 mmol) in THF (2 ml). The mixture was stirred at room temperature for 2 h. The volatile component was removed under reduced pressure, and the residue was dissolved with ethyl acetate (100 ml). The organic layer was washed with 2N aqueous NaOH (50 ml), brine (50 ml), then dried (Na2SO4). After removal of solvent, the crude product was purified by flash column chromatography eluting with hexane/ethyl acetate (1:10) to afford 68 mg (67%) of the title compound as pale yellow solids.

Aufarbeitung

  1. customwas recooled to 0° C.
  2. stirringThe mixture was stirred at room temperature for 2 h
  3. customThe volatile component was removed under reduced pressure
  4. dissolutionthe residue was dissolved with ethyl acetate (100 ml)
  5. washThe organic layer was washed with 2N aqueous NaOH (50 ml), brine (50 ml)
  6. dry with materialdried (Na2SO4)
  7. customAfter removal of solvent
  8. customthe crude product was purified by flash column chromatography
  9. washeluting with hexane/ethyl acetate (1:10)

Quellen und Nachweise

ORD-Eintrag
ord-d0e53ee7a6bb46009e2cbc7a5aebdd8c
Quelldatensatz
uspto-grants-2004_03
Patentnummer
US06710054B2

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