Sodium Chloride → 11beta-Fluoro-7alpha-{5-[(3,4,4,5,5,5-hexafluoropent-2-enyl)methyl-amino]pentyl}oestra-1,3,5(10)-triene-3,17beta-diol
反応式
[F:1][C@H:2]1[CH2:19][C@@:17]2([CH3:18])[C@@H:13]([CH2:14][CH2:15][C:16]2=[O:20])[C@H:12]2[C@H:3]1[C:4]1[CH:5]=[CH:6][C:7]([OH:39])=[CH:8][C:9]=1[CH2:10][C@H:11]2[CH2:21][CH2:22][CH2:23][CH2:24][CH2:25][N:26]([CH2:28][CH:29]=[C:30]([F:38])[C:31]([F:37])([F:36])[C:32]([F:35])([F:34])[F:33])[CH3:27].[BH4-].[Na+].[Cl-].[Na+]>CO>[F:1][C@H:2]1[CH2:19][C@@:17]2([CH3:18])[C@@H:13]([CH2:14][CH2:15][C@@H:16]2[OH:20])[C@H:12]2[C@H:3]1[C:4]1[CH:5]=[CH:6][C:7]([OH:39])=[CH:8][C:9]=1[CH2:10][C@H:11]2[CH2:21][CH2:22][CH2:23][CH2:24][CH2:25][N:26]([CH2:28][CH:29]=[C:30]([F:38])[C:31]([F:36])([F:37])[C:32]([F:33])([F:34])[F:35])[CH3:27]参加物
5
実験手順
1.86 g of 11β-fluoro-7α-{5-[(3,4,4,5,5,5-hexafluoro-pent-2-enyl)methylamino]pentyl}-3-hydroxyestra-1,3,5(10)-trien-17-one are dissolved in 15 ml of methanol and cautiously treated with 222 mg of sodium borohydride. After stirring at room temperature for 15 minutes, the mixture is added to saturated sodium chloride solution, extracted with methylene chloride, dried over magnesium sulphate and concentrated in vacuo. After chromatographing the crude product on silica gel using a hexane-ethyl acetate and an ethyl acetate-acetone gradient, 241 mg of 11β-fluoro-7α-{5-[(3,4,4,5,5,5-hexafluoropent-2-enyl)methyl-amino]pentyl}oestra-1,3,5(10)-triene-3,17β-diol of melting point 122° C. are obtained, [α]D=+47° (c=0.5 in CHCl3)
後処理
- extractionextracted with methylene chloride
- dry with materialdried over magnesium sulphate
- concentrationconcentrated in vacuo
出典と根拠
- ORDレコード
- ord-7f559eab67d34012afa3fd7db6a9fc17
- 出典データセット
- uspto-grants-2004_01
- 特許番号
- US06677324B1
反応ノート
読み込み中…