HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
Triphenylphosphine → 3-(1-(4-((R)-tetrahydrofuran-3-yloxy)-2,3-difluorophenyl)-1H-tetrazol-5-yl)-5-bromopyridin-2-amine
Beteiligte Stoffe
| Rolle | Name | HCID | Einwaage |
|---|---|---|---|
| Edukt | Triphenylphosphine | HCID 11776 | — |
| Edukt | (S)-(+)-3-Hydroxytetrahydrofuran | HCID 2733227 | — |
| Edukt | 4-(5-(2-amino-5-bromopyridin-3-yl)-1H-tetrazol-1-yl)-2,3-difluorophenol | HCID 58293790 | — |
| Lösungsmittel | Tetrahydrofuran | HCID 8028 | — |
| Produkt | 3-(1-(4-((R)-tetrahydrofuran-3-yloxy)-2,3-difluorophenyl)-1H-tetrazol-5-yl)-5-bromopyridin-2-amine | HCID 58293771 | 92,5% |
Reaktionsschritte
A solution of Compound 1086 (90 mg, 0.2438 mmol), triphenylphosphine (76.74 mg, 0.2926 mmol), diisoproplylazodicarboxylate (59.17 mg, 56.68 μL, 0.2926 mmol), and (S)-tetrahydrofuran-3-ol (25.78 mg, 0.2926 mmol) in THF (90 μL) was heated at 70° C. for 10 minutes under microwave irradiation. The reaction was quenched with ammonium chloride (satd') and extracted with EtOAc. The organics were washed with 1 M NaOH (2×), brine, dried over sodium sulfate, and concentrated under vacuum. The residue was chromatographed over silica gel (0-50% EtOAc/hexanes gradient) to give 3-(1-(4-((R)-tetrahydrofuran-3-yloxy)-2,3-difluorophenyl)-1H-tetrazol-5-yl)-5-bromopyridin-2-amine (Compound 1090, 99 mg).
Herkunft & Nachweise
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patentnummer | US08481524B2 |
| Quelldatensatz | uspto-grants-2013_07 |
| ORD ID | ord-5ea3c27186d64bf1b1e51b79fc6b0e78 |
| Quellennotiz | uspto-grants-2013_07 |