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HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
HRID 71127Erstellt: 25. Oktober 2026

Dimethylformamide → Ethyl 8-(4-chloro-3-fluorophenoxy)-3-[3-methoxy-4-(2-methyl-1,3-oxazol-5-yl)phenyl]-5,6,7,8-tetrahydro[1,2,4]triazolo[4,3-a]pyridine-8-carboxylate

https://huagongshe.com/reaction/71127

Reaktionsgleichung

Beteiligte Stoffe

RolleNameHCIDEinwaage
EduktDimethylformamideHCID 6228—
EduktPotassium CarbonateHCID 11430—
Edukt4-Chloro-3-fluorophenolHCID 2724523—
EduktEthyl 8-chloro-3-[3-methoxy-4-(2-methyl-1,3-oxazol-5-yl)phenyl]-5,6,7,8-tetrahydro[1,2,4]triazolo[4,3-a]pyridine-8-carboxylateHCID 66604255—
LösungsmittelWaterHCID 962—
LösungsmittelEthyl AcetateHCID 8857—
ProduktEthyl 8-(4-chloro-3-fluorophenoxy)-3-[3-methoxy-4-(2-methyl-1,3-oxazol-5-yl)phenyl]-5,6,7,8-tetrahydro[1,2,4]triazolo[4,3-a]pyridine-8-carboxylateHCID 6660842050,2%

Reaktionsbedingungen

Temperatur100 °C

Reaktionsschritte

A mixture of ethyl 8-chloro-3-[3-methoxy-4-(2-methyl-1,3-oxazol-5-yl)phenyl]-5,6,7,8-tetrahydro[1,2,4]triazolo[4,3-a]pyridine-8-carboxylate (200 mg), 4-chloro-3-fluorophenol (73.8 mg), potassium carbonate (199 mg) and DMF (2 mL) was stirred at 100° C. for 30 min, and allowed to cool to room temperature. Ethyl acetate and water were added to the reaction mixture, and the mixture was extracted with ethyl acetate. The extract was washed with water and saturated brine, and dried over anhydrous magnesium sulfate, and the solvent was evaporated under reduced pressure. The residue was purified by silica gel column chromatography (ethyl acetate/hexane) to give the title compound (127 mg).

Herkunft & Nachweise

DOI10.6084/m9.figshare.5104873.v1
PatentnummerUS08822699B2
Quelldatensatzuspto-grants-2014_09
ORD IDord-b227cb88df8246bb8f42690c080d3f69
Quellennotizuspto-grants-2014_09