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Diisopropylamine → 1,1-Dimethylethyl 3-[[(5-chloro-2-thienyl)sulfonyl]({[2-(trimethylsilyl)ethyl]oxy}methyl)amino]-4-(methyloxy)-1H-indazole-1-carboxylate

HRID 1892893
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1892893
[Cl:1][C:2]1[S:6][C:5]([S:7]([NH:10][C:11]2[C:19]3[C:14](=[CH:15][CH:16]=[CH:17][C:18]=3[O:20][CH3:21])[N:13]([C:22]([O:24][C:25]([CH3:28])([CH3:27])[CH3:26])=[O:23])[N:12]=2)(=[O:9])=[O:8])=[CH:4][CH:3]=1.[CH3:29][Si:30]([CH3:37])([CH3:36])[CH2:31][CH2:32][O:33][CH2:34]Cl.C(NC(C)C)(C)C>C(Cl)Cl>[Cl:1][C:2]1[S:6][C:5]([S:7]([N:10]([CH2:34][O:33][CH2:32][CH2:31][Si:30]([CH3:37])([CH3:36])[CH3:29])[C:11]2[C:19]3[C:14](=[CH:15][CH:16]=[CH:17][C:18]=3[O:20][CH3:21])[N:13]([C:22]([O:24][C:25]([CH3:28])([CH3:27])[CH3:26])=[O:23])[N:12]=2)(=[O:8])=[O:9])=[CH:4][CH:3]=1
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Komponenten

5

Edukt 3

HCID 7912DiisopropylamineHCID 27242712-Chloromethyl 2-(trimethylsilyl)ethyl etherHCID 594559961,1-Dimethylethyl 3-{[(5-chloro-2-thienyl)sulfonyl]amino}-4-(methyloxy)-1H-indazole-1-carboxylate

Produkt 1

HCID 580544941,1-Dimethylethyl 3-[[(5-chloro-2-thienyl)sulfonyl]({[2-(trimethylsilyl)ethyl]oxy}methyl)amino]-4-(methyloxy)-1H-indazole-1-carboxylate

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344
Dichloromethane
Lösungsmittel

Versuchsvorschrift

To a solution of 1,1-dimethylethyl 3-{[(5-chloro-2-thienyl)sulfonyl]amino}-4-(methyloxy)-1H-indazole-1-carboxylate (for a preparation see Intermediate 6) (2.21 g, 4.98 mmol) in DCM (20 mL) was added at 0° C. 2-(trimethylsilyl)ethoxymethyl chloride (1.23 mL, 6.97 mmol). Then was added at 0° C. in a dropwise fashion diisopropylamine (1.419 mL, 9.96 mmol) and the reaction mixture was stirred at room temperature. The reaction was quenched with water (50 mL), the organic layer was separated, and the aqueous layer was further extracted with 30 mL of DCM. The organic solutions were combined, dried with an hydrophobic frit and concentrated under reduced pressure to give a yellow oil that was used without further purification (3.12 g) LCMS (System A) RT=1.64 min, ES+ve m/z 574/576 (M+H)+.

Aufarbeitung

  1. additionwas added at 0° C
  2. customThe reaction was quenched with water (50 mL)
  3. customthe organic layer was separated
  4. extractionthe aqueous layer was further extracted with 30 mL of DCM
  5. customdried with an hydrophobic frit
  6. concentrationconcentrated under reduced pressure
  7. customto give a yellow oil that
  8. customwas used without further purification (3.12 g) LCMS (System A) RT=1.64 min, ES+ve m/z 574/576 (M+H)+

Quellen und Nachweise

ORD-Eintrag
ord-2d9bcd4130994473b0ec1dfd2d2cb30a
Quelldatensatz
uspto-grants-2013_08
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08507543B2

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