Reaktion #47834

ord-e8d480256d7b46968a7d67c25afe805a

Reaktionsbedingungen

Temperatur
0°CELSIUS
Detaillierte Bedingungen
See reaction.notes.procedure_details.

Aufarbeitung

  1. 1
    WaschenThe resulting mixture washed with saturated saline
  2. 2
    Extraktionextracted with ethyl acetate
  3. 3
    SonstigeThe organic layer was separated
  4. 4
    Trocknendried over anhydrous MgSO4
  5. 5
    Einengenconcentrated under a reduced pressure
  6. 6
    SonstigeThe resulting residue was purified by flash chromatography

Vorschrift

6-Hydroxy-1-oxo-3-phenyl-1H-indene-2-carboxylic acid cyclohexylamide (141 mg, 0.41 mmol) obtained in Step 3 was dissolved in tetrahydropyran/benzene (3 mL/2 mL), and 4-(2-hydroxyethyl)morpholine (99 μl, 0.82 mmol) and triphenylphosphine (215 mg, 0.82 mmol) were added thereto. Then, diisopropyl azodicarboxilate (149 μl, 0.82 mmol) was added slowly thereto at 0° C., and stirred for 2 hrs at RT. The resulting mixture washed with saturated saline and extracted with ethyl acetate. The organic layer was separated, dried over anhydrous MgSO4 and concentrated under a reduced pressure. The resulting residue was purified by flash chromatography to obtain 165 mg of the titled compound (yield: 88.3%).

Quelle

DOI: 10.6084/m9.figshare.5104873.v1Patent: US07745439B2uspto-grants-2010_06