Reaktion #1489389

ord-76089e3db8ed4f8887e4045d4745d269

Lösungsmittel

Reaktionsbedingungen

Detaillierte Bedingungen
See reaction.notes.procedure_details.

Aufarbeitung

  1. 1
    workup.STIRRINGthe mixture stirred at 60° C. for 2 h
  2. 2
    Extraktionextracted with DCM (5×20 mL)
  3. 3
    SonstigeThe combined organics were dried
  4. 4
    Einengenconcentrated in vacuo
  5. 5
    SonstigeThe residue was purified by FCC

Vorschrift

To a solution of Intermediate A (245 mg, 1.50 mmol) in DMF (4 mL) was added NaH (60% dispersion in oil, 180 mg, 4.50 mmol) and the mixture stirred at RT for 0.5 h. A solution of Intermediate 60a (330 mg, 1.50 mmol) in DMF (5 mL) was added and the mixture stirred at 60° C. for 2 h. The cooled solution was diluted with water and extracted with DCM (5×20 mL). The combined organics were dried and concentrated in vacuo. The residue was purified by FCC, using 0-15% [2M NH3 in MeOH] in DCM, to give the title compound as a brown solid after freeze-drying (408 mg, 74%). LCMS (Method 3): Rt 0.44 min, m/z 364 [MH+].

Quelle

DOI: 10.6084/m9.figshare.5104873.v1Patent: US08907094B2uspto-grants-2014_12