Reaktion #2289729

ord-6b8dfea0733d41db809b4574c082a66f

Lösungsmittel

Reaktionsbedingungen

Temperatur
-20°CELSIUS
Detaillierte Bedingungen
See reaction.notes.procedure_details.

Aufarbeitung

  1. 1
    SonstigeReaction mixture
  2. 2
    Sonstigebefore quenching with EtOAc
  3. 3
    Sonstigepartitioning between EtOAc and 0.1 M HCl
  4. 4
    SonstigeThe organic phase was separated
  5. 5
    Extraktionthe aqueous phase extracted into EtOAc
  6. 6
    WaschenThe combined organic extracts were washed with H2O, brine
  7. 7
    Trocknendried over Na2SO4
  8. 8
    Einengenconcentrated under reduced pressure

Vorschrift

To a stirred solution of D1 in THF (0.15 M) cooled to −20° C., was added dropwise a 1.0 M solution of LiAlH4 in THF (1.25 eq.). Reaction mixture was stirred at −20° C. for 30 min before quenching with EtOAc and partitioning between EtOAc and 0.1 M HCl. The organic phase was separated and the aqueous phase extracted into EtOAc. The combined organic extracts were washed with H2O, brine, dried over Na2SO4 and concentrated under reduced pressure to give the title compound as pale yellow oil which was used in the next step without further purification. MS (ES+) C20H29NO5: 364 (M+H)+.

Quelle

DOI: 10.6084/m9.figshare.5104873.v1Patent: US09365541B2uspto-grants-2016_06