Reaktion #1999885

ord-05d48106a1374b51a5267c437e1c18a4

Reaktionsgleichung

C[C@]12CC[C@H]3[C@@H](C/C(=N\O)[C@@]4(O)CCCC[C@]34C)[C@@H]1CC13OCCOC12OCCO3
17,17-bis(ethylendioxy)-5α-hydroxy-6-(E)-hydroxyiminoandrostane
C[C@]12CCC(=O)CC1[C@@H](C#N)C[C@@H]1[C@@H]2CC[C@]2(C)C(=O)CC[C@@H]12
6α-cyanoandrostane-3,17-dione
→
C[C@]12CC[C@H]3[C@@H](C/C(=N\O)[C@@]4(O)CC(=O)CC[C@]34C)[C@@H]1CCC2=O
title compound
Ausbeute 80.0%
C[C@]12CC[C@H]3[C@@H](C/C(=N\O)[C@@]4(O)CC(=O)CC[C@]34C)[C@@H]1CCC2=O
5α-Hydroxy-6-(E)-hydroxyiminoandrostan-3,17-dione
Ausbeute 80.0%

Edukte

C[C@]12CC[C@H]3[C@@H](C/C(=N\O)[C@@]4(O)CCCC[C@]34C)[C@@H]1CC13OCCOC12OCCO3
17,17-bis(ethylendioxy)-5α-hydroxy-6-(E)-hydroxyiminoandrostane
C[C@]12CCC(=O)CC1[C@@H](C#N)C[C@@H]1[C@@H]2CC[C@]2(C)C(=O)CC[C@@H]12
6α-cyanoandrostane-3,17-dione

Reagenzien

Keine

Reaktionsbedingungen

Detaillierte Bedingungen
See reaction.notes.procedure_details.

Aufarbeitung

  1. 1
    WaschenThe combined organic extracts were washed with H2O
  2. 2
    Trocknendried over Na2SO4
  3. 3
    Sonstigeevaporated to dryness
  4. 4
    SonstigeThe residue was purified by flash chromatography (SiO2, n-hexane/acetone/CH2Cl2 60/20/20)

Vorschrift

The title compound II-bm was prepared in 80% yield from 3,3:17,17-bis(ethylendioxy)-5α-hydroxy-6-(E)-hydroxyiminoandrostane by the procedure described above for the preparation of 6α-cyanoandrostane-3,17-dione (II-ac, Prepn. 3). The combined organic extracts were washed with H2O, dried over Na2SO4 and evaporated to dryness. The residue was purified by flash chromatography (SiO2, n-hexane/acetone/CH2Cl2 60/20/20). 1H-NMR (300 MHz, acetone-d6, ppm from TMS: δ 10.72 (s, 1H), 5.35 (s, 1H), 3.12 (dd, 1H), 2.85-1.09 (m, 18H), 0.94 (s, 3H), 0.78 (s, 3H).

Quelle

DOI: 10.6084/m9.figshare.5104873.v1Patent: US08609644B2uspto-grants-2013_12