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HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
HRID 44849Erstellt: 25. Oktober 2026

Chloroform → (R)-8-cyclopentyl-7-ethyl-5-methyl-2-(2-(pyrrolidin-1-yl)-1H-imidazol-1-yl)-7,8-dihydropteridin-6(5H)-one

https://huagongshe.com/reaction/44849

Reaktionsgleichung

Beteiligte Stoffe

RolleNameHCIDEinwaage
EduktChloroformHCID 6212—
EduktPotassium CarbonateHCID 11430—
EduktPyrrolidineHCID 31268—
EduktBinap, (A+-)-HCID 634876—
Edukt(R)-2-(2-bromo-1H-imidazol-1-yl)-8-cyclopentyl-7-ethyl-5-methyl-7,8-dihydropteridin-6(5H)-oneHCID 58405307—
KatalysatorBis(dibenzylideneacetone)palladiumHCID 9811564—
Lösungsmitteltert-ButanolHCID 6386—
LösungsmittelEthyl AcetateHCID 8857—
Produkt(R)-8-cyclopentyl-7-ethyl-5-methyl-2-(2-(pyrrolidin-1-yl)-1H-imidazol-1-yl)-7,8-dihydropteridin-6(5H)-oneHCID 5840567938,3%

Reaktionsbedingungen

Temperatur130 °C

Reaktionsschritte

(R)-2-(2-bromo-1H-imidazol-1-yl)-8-cyclopentyl-7-ethyl-5-methyl-7,8-dihydropteridin-6(5H)-one (Example 65, 150 mg, 0.37 mmol), pyrrolidine (52 mg, 0.74 mmol), Pd2dba3.CHCl3 (76 mg, 0.074 mmol), BINAP (69 mg, 0.11 mmol) and K2CO3 (153 mg, 1.11 mmol) were dissolved in 1 mL of degassed t-BuOH and the resulting solution was heated at 130° C. for 18 h. The reaction mixture was diluted with EtOAc and washed with brine. The organic extracts were dried with Na2SO4, filtered and evaporated, and the residue was purified by preparative HPLC to give the title compound (56 mg). LCMS: 396.2 m/z (M+H)+; ret. Time: 2.76 min (Analytical Method A).

Herkunft & Nachweise

DOI10.6084/m9.figshare.5104873.v1
PatentnummerUS08541418B2
Quelldatensatzuspto-grants-2013_09
ORD IDord-b4594beaad694721a1b74d411a3f9d6f
Quellennotizuspto-grants-2013_09