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Iodoethane → Ethyl 4-(tert-butoxycarbonyl(2,4-dimethoxybenzyl)amino)-6-ethyl-1-methyl-1,6-dihydroimidazo[4,5-d]pyrrolo[2,3-b]pyridine-7-carboxylate

HRID 220344
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 220344
[C:1]([O:5][C:6]([N:8]([CH2:27][C:28]1[CH:33]=[CH:32][C:31]([O:34][CH3:35])=[CH:30][C:29]=1[O:36][CH3:37])[C:9]1[N:14]=[C:13]2[NH:15][C:16]([C:18]([O:20][CH2:21][CH3:22])=[O:19])=[CH:17][C:12]2=[C:11]2[N:23]([CH3:26])[CH:24]=[N:25][C:10]=12)=[O:7])([CH3:4])([CH3:3])[CH3:2].[CH2:38](I)[CH3:39].C(=O)([O-])[O-].[Cs+].[Cs+]>CN(C=O)C.C(OCC)(=O)C>[C:1]([O:5][C:6]([N:8]([CH2:27][C:28]1[CH:33]=[CH:32][C:31]([O:34][CH3:35])=[CH:30][C:29]=1[O:36][CH3:37])[C:9]1[N:14]=[C:13]2[N:15]([CH2:38][CH3:39])[C:16]([C:18]([O:20][CH2:21][CH3:22])=[O:19])=[CH:17][C:12]2=[C:11]2[N:23]([CH3:26])[CH:24]=[N:25][C:10]=12)=[O:7])([CH3:4])([CH3:3])[CH3:2]
KomponentenReaktionsbedingungenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

6

Edukt 3

HCID 6340IodoethaneHCID 10796Cesium carbonateHCID 69809714Ethyl 4-(tert-butoxycarbonyl(2,4-dimethoxybenzyl)amino)-1-methyl-1,6-dihydroimidazo[4,5-d]pyrrolo[2,3-b]pyridine-7-carboxylate

Produkt 1

HCID 69812358Ethyl 4-(tert-butoxycarbonyl(2,4-dimethoxybenzyl)amino)-6-ethyl-1-methyl-1,6-dihydroimidazo[4,5-d]pyrrolo[2,3-b]pyridine-7-carboxylate

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 6228
Dimethylformamide
Lösungsmittel
HCID 8857Ethyl AcetateLösungsmittel

Reaktionsbedingungen

Temperatur
60 °C

Versuchsvorschrift

To a solution of ethyl 4-(tert-butoxycarbonyl(2,4-dimethoxybenzyl)amino)-1-methyl-1,6-dihydroimidazo[4,5-d]pyrrolo[2,3-b]pyridine-7-carboxylate (example 1F, 5.046 g, 9.90 mmol) in DMF (49.5 mL) was added ethyl iodide (1.601 mL, 19.81 mmol) and cesium carbonate (6.45 g, 19.81 mmol). The reaction mixture was heated at 60° C. 60 min and cooled to room temperature. The reaction mixture was diluted with ethyl acetate and vacuum filtered to remove cesium carbonate. Saturated aqueous sodium bicarbonate was added and the aqueous layer was extracted with ethyl acetate (2×). The combined organic layers were washed with 10% lithium chloride (3×), dried over anhydrous magnesium sulfate, filtered and concentrated in vacuo. Crude product was carried forward.

Aufarbeitung

  1. temperature60 min and cooled to room temperature
  2. filtrationfiltered
  3. customto remove cesium carbonate
  4. additionSaturated aqueous sodium bicarbonate was added
  5. extractionthe aqueous layer was extracted with ethyl acetate (2×)
  6. washThe combined organic layers were washed with 10% lithium chloride (3×)
  7. dry with materialdried over anhydrous magnesium sulfate
  8. filtrationfiltered
  9. concentrationconcentrated in vacuo

Quellen und Nachweise

ORD-Eintrag
ord-27218756f91f457c8916b54082cc3a23
Quelldatensatz
uspto-grants-2012_06
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08202881B2

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