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Sodium hydride → 6-{[(1R,3S,4S)-3-{[tert-butyl(dimethyl)silyl]oxy}-4-({[tert-butyl(dimethyl)silyl]-oxy}methyl)cyclopentyl]oxy}-9-(tetrahydro-2H-pyran-2-yl)-9H-purine

HRID 447686
ノート
印刷プレビュー

反応式

HRID 447686 の反応式
[H-].[Na+].[Si:3]([O:10][C@@H:11]1[C@H:15]([CH2:16][O:17][Si:18]([C:21]([CH3:24])([CH3:23])[CH3:22])([CH3:20])[CH3:19])[CH2:14][C@@H:13]([OH:25])[CH2:12]1)([C:6]([CH3:9])([CH3:8])[CH3:7])([CH3:5])[CH3:4].Cl[C:27]1[N:35]=[CH:34][N:33]=[C:32]2[C:28]=1[N:29]=[CH:30][N:31]2[CH:36]1[CH2:41][CH2:40][CH2:39][CH2:38][O:37]1>CN(C=O)C>[Si:3]([O:10][C@@H:11]1[C@H:15]([CH2:16][O:17][Si:18]([C:21]([CH3:24])([CH3:23])[CH3:22])([CH3:19])[CH3:20])[CH2:14][C@@H:13]([O:25][C:27]2[N:35]=[CH:34][N:33]=[C:32]3[C:28]=2[N:29]=[CH:30][N:31]3[CH:36]2[CH2:41][CH2:40][CH2:39][CH2:38][O:37]2)[CH2:12]1)([C:6]([CH3:9])([CH3:8])[CH3:7])([CH3:5])[CH3:4]
参加物反応条件実験手順後処理出典と根拠反応ノート

参加物

5

反応物 3

HCID 24758Sodium hydrideHCID 977406-chloro-9-(tetrahydro-2H-pyran-2-yl)-9H-purineHCID 59671236(1R,3S,4S)-3-{[tert-butyl(dimethyl)silyl]oxy}-4-({[tert-butyl(dimethyl)silyl]oxy}methyl)cyclopentanol

生成物 1

HCID 596712146-{[(1R,3S,4S)-3-{[tert-butyl(dimethyl)silyl]oxy}-4-({[tert-butyl(dimethyl)silyl]-oxy}methyl)cyclopentyl]oxy}-9-(tetrahydro-2H-pyran-2-yl)-9H-purine

試薬・触媒・溶媒 1

HCID 6228
Dimethylformamide
溶媒
3 回

反応条件

温度
0 °C

実験手順

In DMF (4 mL, 0.05 mol) was suspended sodium hydride (47 mg, 0.0012 mol) at 0° C., to which was added a solution of (1R,3S,4S)-3-{[tert-butyl(dimethyl)silyl]oxy}-4-({[tert-butyl(dimethyl)silyl]oxy}methyl)cyclopentanol (0.200 g, 0.000554 mol) in 2.5 mL DMF. The mixture was stirred at 0° C. for 10 minutes and was added a solution of 6-Chloro-9-(tetrahydropyranyl)purine (0.265 g, 0.00111 mol) (Example 33, step b) in 4 mL DMF. The reaction was stirred at 0° C. for 1 h and warmed to 23° C. overnight. The reaction was quenched by addition of saturated aqueous NH4Cl, and the mixture was extracted with ethyl acetate, washed with brine, dried (Na2SO4), filtered and concentrated. The residue was purified by flash chromatography (0 to 5% acetone/toluene) to obtain 271 mg (86.8%).

後処理

  1. customat 0° C.
  2. stirringThe reaction was stirred at 0° C. for 1 h
  3. temperaturewarmed to 23° C. overnight
  4. customThe reaction was quenched by addition of saturated aqueous NH4Cl
  5. extractionthe mixture was extracted with ethyl acetate
  6. washwashed with brine
  7. dry with materialdried (Na2SO4)
  8. filtrationfiltered
  9. concentrationconcentrated
  10. customThe residue was purified by flash chromatography (0 to 5% acetone/toluene)
  11. customto obtain 271 mg (86.8%)

出典と根拠

ORDレコード
ord-b3f8801d6f1b4e7ea5a11467d926042b
出典データセット
uspto-grants-2013_07
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08481550B2

反応ノート

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