Triethylamine → 7-(Benzyloxy)-1-(2-methoxyethyl)-N,N,2-trimethyl-1H-benzimidazole-5-carboxamide

HRID 1258463Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1258463
[CH2:1]([O:8][C:9]1[C:14]2[N:15]([CH2:19][CH2:20][O:21][CH3:22])[C:16]([CH3:18])=[N:17][C:13]=2[CH:12]=[C:11]([C:23]([OH:25])=O)[CH:10]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.Cl.[CH3:27][NH:28][CH3:29].Cl.CN(C)CCCN=C=NCC.O.ON1C2C=CC=CC=2N=N1.C(N(CC)CC)C>CN(C)C=O>[CH2:1]([O:8][C:9]1[C:14]2[N:15]([CH2:19][CH2:20][O:21][CH3:22])[C:16]([CH3:18])=[N:17][C:13]=2[CH:12]=[C:11]([C:23]([N:28]([CH3:29])[CH3:27])=[O:25])[CH:10]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

Komponenten

7

Edukt 5

HCID 8471TriethylamineHCID 10473Dimethylamine, hydrochlorideHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 27960291-Hydroxybenzotriazole hydrateHCID 672204647-(Benzyloxy)-1-(2-methoxyethyl)-2-methyl-1H-benzimidazole-5-carboxylic acid

Produkt 1

HCID 672195137-(Benzyloxy)-1-(2-methoxyethyl)-N,N,2-trimethyl-1H-benzimidazole-5-carboxamideAusbeute 93,2 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6228DimethylformamideLösungsmittel

Versuchsvorschrift

A mixture of 7-(benzyloxy)-1-(2-methoxyethyl)-2-methyl-1H-benzimidazole-5-carboxylic acid (520 mg, 1.53 mmol, Step 5 of Example 1), dimethylamine hydrochloride (374 mg, 4.58 mmol), 1-[3-(dimethylamino)propyl]-3-ethylcarbodiimide hydrochloride (498 mg, 2.60 mmol), 1-hydroxybenzotriazole hydrate (413 mg, 3.06 mmol), and triethylamine (0.64 mL, 4.58 mmol) in N,N-dimethylformamide (10 mL) was stirred at room temperature for 1 day. The mixture was poured onto water, and the aqueous layer was extracted with ethyl acetate. The combined organic layer was dried over magnesium sulfate, and concentrated in vacuo. The residue was purified by column chromatography on silica gel eluting with dichloromethane/methanol (10:1) to afford the title compound as a white solid (524 mg, 93%).

Aufarbeitung

  1. additionThe mixture was poured onto water
  2. extractionthe aqueous layer was extracted with ethyl acetate
  3. dry with materialThe combined organic layer was dried over magnesium sulfate
  4. concentrationconcentrated in vacuo
  5. customThe residue was purified by column chromatography on silica gel eluting with dichloromethane/methanol (10:1)

Quellen und Nachweise

ORD-Eintrag
ord-9cb246d264dd44da904b1281e2360bd7
Quelldatensatz
uspto-grants-2013_06
Patentnummer
US08466166B2

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