Reaktion #171573

ord-93e2dad86fe645c28964bf273b6bd8d5

Lösungsmittel

Reaktionsbedingungen

Detaillierte Bedingungen
See reaction.notes.procedure_details.

Aufarbeitung

  1. 1
    Einengenthen concentrated
  2. 2
    SonstigeThe residue was partitioned between dichloromethane and 1M NaOH
  3. 3
    Filtrationfiltered
  4. 4
    Sonstigeto remove insolubles
  5. 5
    SonstigeThe organic phase was collected
  6. 6
    Waschenwashed with 1M NaOH, brine
  7. 7
    Trocknendried (MgSO4)
  8. 8
    Filtrationfiltered
  9. 9
    Einengenconcentrated

Vorschrift

To the compound 146 (0.59 g, 0.81 mmol) in dichloromethane (50 mL) was added TFA (3 mL). The solution was stirred for 18 h then concentrated. The residue was partitioned between dichloromethane and 1M NaOH, and filtered to remove insolubles. The organic phase was collected, washed with 1M NaOH, brine, dried (MgSO4), filtered, and concentrated to afford title compound 147 (0.35 g, 69% yield). 1H NMR (400 MHz, DMSO-d6) δ (ppm): 10.40 (s, 1H), 10.01 (s, 1H), 8.55 (d, J=1.6 Hz, 1H), 8.51 (d, J=5.3 Hz, 1H), 8.31 (s, 1H), 8.22 (d, J=8.0 Hz, 1H), 7.92-7.87 (m, 2H), 7.65-7.61 (m, 2H), 7.52-7.43 (m, 2H), 7.17-7.12 (m, 2H), 6.64 (d, J=5.5 Hz, 1H), 3.77 (s, 2H), 3.40 (t, J=5.7 Hz, 2H), 3.23 (s, 3H), 2.64 (t, J=5.7 Hz, 2H), 1.46 (br s, 4H). MS (m/z): 630.1 (M+H).

Quelle

DOI: 10.6084/m9.figshare.5104873.v1Patent: US08846927B2uspto-grants-2014_09