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Sodium hydride → (2S)-2-(1-(2-bromo-6-chlorophenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-yloxy)-N-(5-methylpyrazin-2-yl)-3-((R)-1-(triisopropylsilyloxy)propan-2-yloxy)propanamide

HRID 655731
ノート
印刷プレビュー

反応式

HRID 655731 の反応式
[H-].[Na+].[OH:3][C@@H:4]([CH2:15][O:16][C@H:17]([CH3:30])[CH2:18][O:19][Si:20]([CH:27]([CH3:29])[CH3:28])([CH:24]([CH3:26])[CH3:25])[CH:21]([CH3:23])[CH3:22])[C:5]([NH:7][C:8]1[CH:13]=[N:12][C:11]([CH3:14])=[CH:10][N:9]=1)=[O:6].[Br:31][C:32]1[CH:37]=[CH:36][CH:35]=[C:34]([Cl:38])[C:33]=1[N:39]1[C:43]2=[N:44][CH:45]=[N:46][C:47](Cl)=[C:42]2[CH:41]=[N:40]1>C1COCC1.CCOC(C)=O>[Br:31][C:32]1[CH:37]=[CH:36][CH:35]=[C:34]([Cl:38])[C:33]=1[N:39]1[C:43]2[N:44]=[CH:45][N:46]=[C:47]([O:3][C@@H:4]([CH2:15][O:16][C@H:17]([CH3:30])[CH2:18][O:19][Si:20]([CH:27]([CH3:29])[CH3:28])([CH:21]([CH3:23])[CH3:22])[CH:24]([CH3:26])[CH3:25])[C:5]([NH:7][C:8]3[CH:13]=[N:12][C:11]([CH3:14])=[CH:10][N:9]=3)=[O:6])[C:42]=2[CH:41]=[N:40]1
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

6

反応物 3

HCID 24758Sodium hydrideHCID 574386801-(2-bromo-6-chlorophenyl)-4-chloro-1H-pyrazolo[3,4-d]pyrimidineHCID 57504703(S)-2-hydroxy-N-(5-methylpyrazin-2-yl)-3-((R)-1-(triisopropylsilyloxy)propan-2-yloxy)propanamide

生成物 1

HCID 57504702(2S)-2-(1-(2-bromo-6-chlorophenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-yloxy)-N-(5-methylpyrazin-2-yl)-3-((R)-1-(triisopropylsilyloxy)propan-2-yloxy)propanamide収率 93.5%

試薬・触媒・溶媒

2
HCID 8028Tetrahydrofuran溶媒2 回HCID 8857Ethyl Acetate溶媒

反応条件

温度
0 °C

実験手順

Sodium hydride (0.875 g, 21.87 mmol) was added to (S)-2-hydroxy-N-(5-methylpyrazin-2-yl)-3-((R)-1-(triisopropylsilyloxy)propan-2-yloxy)propanamide (Intermediate AZ2) (3.0 g, 7.29 mmol) in anhydrous THF (35 mL) at 0° C. under nitrogen. The resulting solution was stirred at 0° C. for 10 minutes and then a solution of 1-(2-bromo-6-chlorophenyl)-4-chloro-1H-pyrazolo[3,4-d]pyrimidine (Intermediate BO2) (2.507 g, 7.29 mmol) in anhydrous THF (20 mL) was added dropwise over 1 minute. The mixture was stirred at 0° C. for 10 minutes and then allowed to warm to ambient temperature for 6 hours. It was then cooled to ˜0° C., the mixture poured into ice cold 1M citric acid and diluted with EtOAc (50 mL). It was stirred vigorously for 10 minutes. The organic phase was separated, washed with water and brine, dried over MgSO4, filtered and evaporated. The crude product was purified by flash silica chromatography, elution gradient 20 to 50% EtOAc in isohexane to afford the product (4.90 g, 93%).

後処理

  1. stirringThe mixture was stirred at 0° C. for 10 minutes
  2. temperatureto warm to ambient temperature for 6 hours
  3. temperatureIt was then cooled to ˜0° C.
  4. stirringIt was stirred vigorously for 10 minutes
  5. customThe organic phase was separated
  6. washwashed with water and brine
  7. dry with materialdried over MgSO4
  8. filtrationfiltered
  9. customevaporated
  10. customThe crude product was purified by flash silica chromatography, elution gradient 20 to 50% EtOAc in isohexane

出典と根拠

ORDレコード
ord-f5979439b3d94ca2b4a47b03e14199f9
出典データセット
uspto-grants-2011_12
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08071608B2

反応ノート

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