Sodium hydride → HCID 54432354, 화합물

HRID 1814941

반응식

HRID 1814941 반응식
[H-].[Na+].[Br:3][C:4]1[N:12]([CH3:13])[C:11]2[C:10](=[O:14])[NH:9][C:8](=[O:15])[N:7]([CH3:16])[C:6]=2[N:5]=1.[C:17]([O:20][CH:21]([CH3:33])[CH2:22][CH2:23][CH2:24][CH2:25][C@H](Cl)CCCCC)(=[O:19])[CH3:18]>CS(C)=O>[C:17]([O:20][C@H:21]([CH3:33])[CH2:22][CH2:23][CH2:24][CH2:25][N:9]1[C:10](=[O:14])[C:11]2[N:12]([CH3:13])[C:4]([Br:3])=[N:5][C:6]=2[N:7]([CH3:16])[C:8]1=[O:15])(=[O:19])[CH3:18]

참가 물질

5

반응물 3

HCID 24758Sodium hydrideHCID 7022428-Bromo-3,7-dimethyl-3,7-dihydro-1H-purine-2,6-dioneHCID 86584512HCID 86584512, 화합물

생성물 1

HCID 54432354HCID 54432354, 화합물수율 74%

시약·촉매·용매 1

HCID 679Dimethyl Sulfoxide용매

실험 절차

To a stirring suspension of sodium hydride (740 mg, 30.8 mmol) in anhydrous dimethylsulfoxide (120 ml) was added 8-bromo-3,7-dimethylxanthine (6.5 g, 25.0 mmol). After stirring at room temperature under argon for 1.5 hours, (R)-5-acetoxyhexyl-1-chlorohexane (4.91 g, 27.5 mmol) was added and the mixture was stirred at 80° C. for 18 hours. After cooling to room temperature, the reaction mixture was quenched by addition of saturated aqueous sodium chloride solution (300 ml) and extracted with ethyl acetate (3x 50 ml). The combined extracts were washed with water (2x 20 ml), with saturated aqueous sodium chloride solution (20 ml) and dried over magnesium sulfate. After evaporation of the solvent under reduced pressure, the crude product was purified by flash chromatography on silica gel eluting with ethyl acetate-hexane (1 :1) to provide (R)-1-(5-acetoxyhexyl)-8-bromo-3, 7-dimethylxanthine (7.38 g, 74% yield) as a colorless oil.

후처리

  1. stirringthe mixture was stirred at 80° C. for 18 hours
  2. temperatureAfter cooling to room temperature
  3. customthe reaction mixture was quenched by addition of saturated aqueous sodium chloride solution (300 ml)
  4. extractionextracted with ethyl acetate (3x 50 ml)
  5. washThe combined extracts were washed with water (2x 20 ml), with saturated aqueous sodium chloride solution (20 ml)
  6. dry with materialdried over magnesium sulfate
  7. customAfter evaporation of the solvent under reduced pressure
  8. customthe crude product was purified by flash chromatography on silica gel eluting with ethyl acetate-hexane (1 :1)

출처 및 근거

ORD 기록
ord-710423a91b5f4e68b7657277a6f60fdb
출처 데이터셋
uspto-grants-2005_04
특허 번호
US06878715B1

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