3-Bromocyclohexene → (3R)-(-)-2-oxo-3-tert-butoxycarbonylamino-5-(2-cyclohexen-1-yl)-1,3,4,5-tetrahydro-2H-1,5-benzodiazepine

HRID 1979464

反応式

HRID 1979464 の反応式
Br[CH:2]1[CH2:7][CH2:6][CH2:5][CH:4]=[CH:3]1.C(=O)(O)[O-].[Na+].[O:13]=[C:14]1[NH:20][C:19]2[CH:21]=[CH:22][CH:23]=[CH:24][C:18]=2[NH:17][CH2:16][C@H:15]1[NH:25][C:26]([O:28][C:29]([CH3:32])([CH3:31])[CH3:30])=[O:27]>CN(C)C=O>[O:13]=[C:14]1[NH:20][C:3]2[CH:4]=[CH:5][CH:6]=[CH:7][C:2]=2[N:17]([CH:18]2[CH2:24][CH2:23][CH2:22][CH:21]=[CH:19]2)[CH2:16][C@H:15]1[NH:25][C:26]([O:28][C:29]([CH3:32])([CH3:31])[CH3:30])=[O:27]

参加物

5

反応条件

温度
50 °C

実験手順

3-Bromocyclohexene (7.06 g) and sodium bicarbonate (3.68 g) were added to a solution of (R)-(+)-2-oxo-3-tert-butoxycarbonylamino-1,3,4,5-tetrahydro-2H-1,5-benzodiazepine (6.08 g) in anhydrous N,N-dimethylformamide (50 ml), and the mixture was stirred at 50° C. for one hour. The reaction mixture was allowed to cool, ice-water was added, and extracted with ethyl acetate. The organic layer was washed with saturated brine, dried over anhydrous sodium sulfate. The solvent was evaporated under reduced pressure,the residue was purified by silica gel column chromatography(ethyl acetate:n-hexane=1:3), to thereby obtain 7.84 g of the titled compound.

後処理

  1. temperatureto cool
  2. extractionextracted with ethyl acetate
  3. washThe organic layer was washed with saturated brine
  4. dry with materialdried over anhydrous sodium sulfate
  5. customThe solvent was evaporated under reduced pressure
  6. customthe residue was purified by silica gel column chromatography(ethyl acetate:n-hexane=1:3)

出典と根拠

ORDレコード
ord-c75f7bbd45844e82a5bc132c9d783059
出典データセット
uspto-grants-2001_05
特許番号
US06239131B1

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