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
Beteiligte Stoffe
| Rolle | Name | HCID | Einwaage |
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| Edukt | Chloroform | HCID 6212 | — |
| Edukt | Potassium Carbonate | HCID 11430 | — |
| Edukt | Pyrrolidine | HCID 31268 | — |
| Edukt | Binap, (A+-)- | HCID 634876 | — |
| Edukt | (R)-2-(2-bromo-1H-imidazol-1-yl)-8-cyclopentyl-7-ethyl-5-methyl-7,8-dihydropteridin-6(5H)-one | HCID 58405307 | — |
| Katalysator | Bis(dibenzylideneacetone)palladium | HCID 9811564 | — |
| Lösungsmittel | tert-Butanol | HCID 6386 | — |
| Lösungsmittel | Ethyl Acetate | HCID 8857 | — |
| Produkt | (R)-8-cyclopentyl-7-ethyl-5-methyl-2-(2-(pyrrolidin-1-yl)-1H-imidazol-1-yl)-7,8-dihydropteridin-6(5H)-one | HCID 58405679 | 38,3% |
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
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patentnummer | US08541418B2 |
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| Quelldatensatz | uspto-grants-2013_09 |
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| ORD ID | ord-b4594beaad694721a1b74d411a3f9d6f |
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| Quellennotiz | uspto-grants-2013_09 |
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