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HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
HRID 2089011Erstellt: 25. Oktober 2026

Cesium carbonate → N-[6-chloro-4-(1H-pyrrolo[2,3-b]pyridin-3-yl)pyridin-2-yl]-2,6-difluorobenzamide

https://huagongshe.com/reaction/2089011

Reaktionsgleichung

Beteiligte Stoffe

RolleNameHCIDEinwaage
EduktCesium carbonateHCID 10796—
Edukt2,6-DifluorobenzamideHCID 87439—
Edukt1,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine)HCID 636044—
Edukt3-(2,6-dichloropyridin-4-yl)-1-(phenylsulfonyl)-1H-pyrrolo[2,3-b]pyridineHCID 86649869—
Katalysatorpalladium(II) acetateHCID 167845—
LösungsmittelDimethylformamideHCID 6228—
Lösungsmittel1,4-DioxaneHCID 31275—
ProduktN-[6-chloro-4-(1H-pyrrolo[2,3-b]pyridin-3-yl)pyridin-2-yl]-2,6-difluorobenzamideHCID 498303288,9%

Reaktionsbedingungen

Temperatur50 °C

Reaktionsschritte

A mixture of Example 7a (0.100 g, 0.247 mmol), 2,6-difluorobenzamide (0.066 g, 0.421 mmol), cesium carbonate (0.105 g, 0.322 mmol), palladium (II) acetate (2.78 mg, 0.012 mmol), and Xantphos (10.73 mg, 0.019 mmol) in dioxane (3 mL) and DMF (0.1 mL) was heated at 150° C. for 30 minutes in a Biotage microwave reactor. The mixture was concentrated. The solid was suspended in dioxane (3 mL), treated with NaOH (20%, 0.10 mL), and heated at 50° C. for 3 hours. The reaction mixture was concentrated. The residue was stirred in water for 15 minutes, filtered, and purified by reverse-phase HPLC as described in Example 56 to give the title compound (8.5 mg) as trifluoroacetic acid salts. 1H NMR (500 MHz, DMSO-d6) ppm 7.24 (t, J=8.24 Hz, 2H), 7.30 (dd, J=8.09, 4.73 Hz, 1H), 7.52-7.65 (m, 2H), 7.70 (s, 1H), 8.34-8.41 (m, 3H), 8.65 (s, 1H), 11.66 (s, 1H), 12.41 (s, 1H). MS (ESI+) m/z 384.9 (M+H)+.

Herkunft & Nachweise

DOI10.6084/m9.figshare.5104873.v1
PatentnummerUS08435980B2
Quelldatensatzuspto-grants-2013_05
ORD IDord-d4bf6ab631d643248ea99f4a0b804ec7
Quellennotizuspto-grants-2013_05