Water → 2beta-(1,4-Dioxa-8-azaspiro[4.5]dec-8-yl)-16beta-(1-pyrrolidinyl)-5alpha-androstane-3alpha,17beta-diol

HRID 232759

Reaktionsgleichung

Reaktionsgleichung von HRID 232759
[O:1]1[C:5]2([CH2:10][CH2:9][NH:8][CH2:7][CH2:6]2)[O:4][CH2:3][CH2:2]1.O.[O:12]1[C@H:14]2[CH2:15][C@H:16]3[C@:29]([CH3:31])([CH2:30][C@@H:13]12)[C@@H:28]1[C@H:19]([C@H:20]2[C@@:24]([CH2:26][CH2:27]1)([CH3:25])[C@@H:23]([OH:32])[C@@H:22]([N:33]1[CH2:37][CH2:36][CH2:35][CH2:34]1)[CH2:21]2)[CH2:18][CH2:17]3>C(#N)C>[O:1]1[C:5]2([CH2:10][CH2:9][N:8]([C@H:13]3[CH2:30][C@@:29]4([CH3:31])[C@@H:16]([CH2:17][CH2:18][C@@H:19]5[C@@H:28]4[CH2:27][CH2:26][C@@:24]4([CH3:25])[C@H:20]5[CH2:21][C@H:22]([N:33]5[CH2:37][CH2:36][CH2:35][CH2:34]5)[C@@H:23]4[OH:32])[CH2:15][C@@H:14]3[OH:12])[CH2:7][CH2:6]2)[O:4][CH2:3][CH2:2]1

Komponenten

5

Edukt 3

HCID 962WaterHCID 674351,4-Dioxa-8-azaspiro(4.5)decaneHCID 160638722Alpha,3alpha-epoxy-16beta-(1-pyrrolidinyl)-5alpha-androstan-17beta-OL

Produkt 1

HCID 228685452beta-(1,4-Dioxa-8-azaspiro[4.5]dec-8-yl)-16beta-(1-pyrrolidinyl)-5alpha-androstane-3alpha,17beta-diol

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6342AcetonitrileLösungsmittel

Versuchsvorschrift

After adding 63 g of 1,4-dioxa-8-azaspiro[4.5]decane and 13 ml of water to 17 g of 2α,3α-epoxy-16β-(1-pyrrolidinyl)-5α-androstane-17β-ol, the reaction mixture is maintained at 100° to 105° C. for 80 hours while introducing nitrogen. After completion of the reaction, the solution containing a precipitate is diluted with 200 ml of acetonitrile and after filtering, the precipitate is thoroughly washed with water and then with acetonitrile, dried and recrystallized from methanol to give the title product in a yield of 18.2 g (76.5%), m.p.: 184°-187° C.

Aufarbeitung

  1. temperaturethe reaction mixture is maintained at 100° to 105° C. for 80 hours
  2. additionwhile introducing nitrogen
  3. customAfter completion of the reaction
  4. additionthe solution containing a precipitate
  5. filtrationafter filtering
  6. washthe precipitate is thoroughly washed with water
  7. dry with materialwith acetonitrile, dried
  8. customrecrystallized from methanol

Quellen und Nachweise

ORD-Eintrag
ord-d432d9d21a9f4e12b3cc1722ac9e8480
Quelldatensatz
uspto-grants-1997_01
Patentnummer
US05591735

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