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Sodium Bicarbonate → 4-[3-(2,3-Dihydro-1,4-benzodioxin-6-yl)-1H-indazol-5-yl]-2-methyl-5-oxo-1,4,5,7-tetrahydrofuro-[3,4-b]pyridine-3-carbonitrile

HRID 408557
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 408557
Br[C:2]1[C:10]2[C:5](=[CH:6][CH:7]=[C:8]([CH:11]3[C:16]([C:17]#[N:18])=[C:15]([CH3:19])[NH:14][C:13]4[CH2:20][O:21][C:22](=[O:23])[C:12]3=4)[CH:9]=2)[NH:4][N:3]=1.[O:24]1[C:29]2[CH:30]=[CH:31][C:32](B(O)O)=[CH:33][C:28]=2[O:27][CH2:26][CH2:25]1.C(=O)(O)[O-].[Na+]>O1CCOCC1.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>[O:24]1[C:29]2[CH:30]=[CH:31][C:32]([C:2]3[C:10]4[C:5](=[CH:6][CH:7]=[C:8]([CH:11]5[C:16]([C:17]#[N:18])=[C:15]([CH3:19])[NH:14][C:13]6[CH2:20][O:21][C:22](=[O:23])[C:12]5=6)[CH:9]=4)[NH:4][N:3]=3)=[CH:33][C:28]=2[O:27][CH2:26][CH2:25]1
KomponentenReaktionsbedingungenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

6

Edukt 3

HCID 516892Sodium BicarbonateHCID 2776178(2,3-Dihydro-1,4-benzodioxin-6-yl)boronic acidHCID 178428406HCID 178428406, Verbindung

Produkt 1

HCID 469112694-[3-(2,3-Dihydro-1,4-benzodioxin-6-yl)-1H-indazol-5-yl]-2-methyl-5-oxo-1,4,5,7-tetrahydrofuro-[3,4-b]pyridine-3-carbonitrileAusbeute 19 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 178418397
HCID 178418397, Verbindung
Katalysator
HCID 312751,4-DioxaneLösungsmittel

Reaktionsbedingungen

Temperatur
95 °C

Versuchsvorschrift

To a degassed solution of 120 mg (0.323 mmol) 4-(3-bromo-1H-indazol-5-yl)-2-methyl-5-oxo-1,4,5,7-tetrahydrofuro[3,4-b]pyridine-3-carbonitrile (Example 24) and 69.8 mg (0.388 mmol) 2,3-dihydro-1,4-benzodioxin-6-ylboronic acid in anhydrous 1,4-dioxane (4.5 ml) were added under inert gas atmosphere 37.4 mg (0.032 mmol) tetrakis(triphenylphosphine)palladium(0) and aqueous sodium bicarbonate solution (2 M, 0.77 ml). The resulting mixture was stirred at 95° C. for 12 h. After cooling to room temperature and concentration under reduced pressure, the remaining solid was dissolved in ethyl acetate (20 ml). The solution was subsequently washed with water and brine, dried over sodium sulfate and concentrated under reduced pressure. The crude product was purified by preparative RP-HPLC (acetonitrile/water gradient, final mixture 95:5 v/v) to yield the title compound as a white solid (26 mg, 19% of th.).

Aufarbeitung

  1. temperatureAfter cooling to room temperature
  2. concentrationconcentration under reduced pressure
  3. dissolutionthe remaining solid was dissolved in ethyl acetate (20 ml)
  4. washThe solution was subsequently washed with water and brine
  5. dry with materialdried over sodium sulfate
  6. concentrationconcentrated under reduced pressure
  7. customThe crude product was purified by preparative RP-HPLC (acetonitrile/water gradient, final mixture 95:5 v/v)

Quellen und Nachweise

ORD-Eintrag
ord-a00cc70f16b4432988319ec728f7914a
Quelldatensatz
uspto-grants-2014_06
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08759341B2

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