Sodium borohydride → 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

HRID 1837248노트

반응식

HRID 1837248 반응식
[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+]>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]

참가 물질

4

반응물 2

HCID 4311764Sodium borohydrideHCID 86587645HCID 86587645, 화합물

생성물 1

HCID 8658764611beta-Fluoro-7alpha-{5-[(3,4,4,5,5,5-hexafluoropent-2-enyl)methyl-amino]pentyl}oestra-1,3,5(10)-triene-3,17beta-diol수율 12.9%

시약·촉매·용매 1

HCID 887Methanol용매

실험 절차

1.86 g of 11β-fluoro-7α-{5-[(3,4,4,5,5,5-hexafluoro-pent-2-enyl)-methyl-amino]-pentyl}-3-hydroxy-estra-1,3,5(10)-trien-17-one is dissolved in 15 ml of methanol and carefully mixed with 222 mg of sodium borohydride. After 15 minutes of stirring at room temperature, the batch is added to saturated common salt solution, extracted with methylene chloride, dried on magnesium sulfate and concentrated by evaporation in a vacuum. After the crude product is chromatographed on silica gel with a hexane-ethyl acetate gradient and an ethyl acetate-acetone gradient, 241 mg of 11β-fluoro-7α-{5-[(3,4,4,5,5,5-hexafluoro-pent-2-enyl)-methyl-amino]-pentyl}-estra-1,3,5(10)-triene-3,17β-diol with a melting point of 122° C. is obtained, [α]D=+47° (c=0.5 in CHCl3).

후처리

  1. additionthe batch is added to saturated common salt solution
  2. extractionextracted with methylene chloride
  3. customdried on magnesium sulfate
  4. concentrationconcentrated by evaporation in a vacuum
  5. customAfter the crude product is chromatographed on silica gel with a hexane-ethyl acetate gradient

출처 및 근거

ORD 기록
ord-263f2082552141c6a9e4045a7cf1f959
출처 데이터셋
uspto-grants-2004_08
특허 번호
US06780855B2

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