2-bromo-N-(tert-butyl)-5-((2-(trimethylsilyl)ethoxy)methyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxamide → HCID 178449394, Verbindung

HRID 246313

Reaktionsgleichung

Reaktionsgleichung von HRID 246313
[C:1]([NH:5][C:6]([C:8]1[C:16]2[C:11](=[N:12][CH:13]=[C:14](Br)[N:15]=2)[N:10]([CH2:18][O:19][CH2:20][CH2:21][Si:22]([CH3:25])([CH3:24])[CH3:23])[CH:9]=1)=[O:7])([CH3:4])([CH3:3])[CH3:2].[C:26]([SiH2:30][O:31][C:32]([CH3:56])([CH3:55])[C:33]1[CH:34]=[CH:35][CH:36]=[C:37]2[C:41]=1[NH:40][N:39]=[C:38]2[Sn](CCCC)(CCCC)CCCC)([CH3:29])([CH3:28])[CH3:27]>CN(C=O)C.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.[Cu]I>[C:1]([NH:5][C:6]([C:8]1[C:16]2[C:11](=[N:12][CH:13]=[C:14]([C:38]3[C:37]4[C:41](=[C:33]([C:32]([CH3:56])([CH3:55])[O:31][SiH2:30][C:26]([CH3:29])([CH3:28])[CH3:27])[CH:34]=[CH:35][CH:36]=4)[NH:40][N:39]=3)[N:15]=2)[N:10]([CH2:18][O:19][CH2:20][CH2:21][Si:22]([CH3:25])([CH3:24])[CH3:23])[CH:9]=1)=[O:7])([CH3:4])([CH3:3])[CH3:2]

Komponenten

6

Edukt 2

HCID 715756452-bromo-N-(tert-butyl)-5-((2-(trimethylsilyl)ethoxy)methyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxamideHCID 178448228HCID 178448228, Verbindung

Produkt 1

HCID 178449394HCID 178449394, VerbindungAusbeute 34 %

Reagenzien, Katalysatoren, Lösungsmittel 3

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)KatalysatorHCID 178418397HCID 178418397, VerbindungKatalysatorHCID 6228DimethylformamideLösungsmittel

Reaktionsbedingungen

Temperatur
80 °C

Versuchsvorschrift

In a 25 ml round-bottomed flask, 2-bromo-5-(2-trimethylsilanyl-ethoxymethyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid tert-butylamide (180 mg, 0.42 mmol) and 7-(tert-butyldimethyl-silanyloxymethyl)-3-tributylstannanyl-1H-indazole (crude from Step 4, 462 mg, 0.50 mmol) were dissolved in DMF (2.8 ml). The reaction mixture was evacuated and backfilled with argon and tetrakis(triphenylphosphine)palladium (0) (25 mg, 0.022 mmol) and copper (I) iodide (16 mg, 0.084 mmol) were added. The reaction mixture was stirred at 80° C. overnight then cooled to room temperature, quenched with water and extracted with diethyl ether (2×). The combined organic layers were washed twice with water and once with brine then concentrated. The residue was chromatographed over 25 g silica gel with EtOAc/hexanes (gradient: 0-30% EtOAc) to afford 86 mg (34%) of 2-[7-(tert-butyl-dimethyl-silanyloxymethyl)-1H-indazol-3-yl]-5-(2-trimethylsilanyl-ethoxymethyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid tert-butylamide as a light yellow solid.

Aufarbeitung

  1. customThe reaction mixture was evacuated
  2. additionwere added
  3. temperaturethen cooled to room temperature
  4. customquenched with water
  5. extractionextracted with diethyl ether (2×)
  6. washThe combined organic layers were washed twice with water and once with brine
  7. concentrationthen concentrated
  8. customThe residue was chromatographed over 25 g silica gel with EtOAc/hexanes (gradient: 0-30% EtOAc)

Quellen und Nachweise

ORD-Eintrag
ord-4fa93ed065c14364b79fe924fae5db38
Quelldatensatz
uspto-grants-2014_02
Patentnummer
US08658646B2

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