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2-bromo-N-isopropyl-5-((2-(trimethylsilyl)ethoxy)methyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxamide → 2-[5-(tert-butyl-dimethyl-silanyloxy)-1-methyl-1H-indazol-3-yl]-5-(2-trimethylsilanyl-ethoxymethyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid isopropylamide

HRID 245954
ノート
印刷プレビュー

反応式

HRID 245954 の反応式
[CH:1]([NH:4][C:5]([C:7]1[C:15]2[C:10](=[N:11][CH:12]=[C:13](Br)[N:14]=2)[N:9]([CH2:17][O:18][CH2:19][CH2:20][Si:21]([CH3:24])([CH3:23])[CH3:22])[CH:8]=1)=[O:6])([CH3:3])[CH3:2].[C:25]([Si:29]([CH3:55])([CH3:54])[O:30][C:31]1[CH:32]=[C:33]2[C:37](=[CH:38][CH:39]=1)[N:36]([CH3:40])[N:35]=[C:34]2[Sn](CCCC)(CCCC)CCCC)([CH3:28])([CH3:27])[CH3:26]>CN(C=O)C.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.[Cu]I>[CH:1]([NH:4][C:5]([C:7]1[C:15]2[C:10](=[N:11][CH:12]=[C:13]([C:34]3[C:33]4[C:37](=[CH:38][CH:39]=[C:31]([O:30][Si:29]([C:25]([CH3:27])([CH3:26])[CH3:28])([CH3:54])[CH3:55])[CH:32]=4)[N:36]([CH3:40])[N:35]=3)[N:14]=2)[N:9]([CH2:17][O:18][CH2:19][CH2:20][Si:21]([CH3:24])([CH3:23])[CH3:22])[CH:8]=1)=[O:6])([CH3:3])[CH3:2]
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 2

HCID 585222792-bromo-N-isopropyl-5-((2-(trimethylsilyl)ethoxy)methyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxamideHCID 712796055-(tert-butyldimethylsilyloxy)-1-methyl-3-(tributylstannyl)-1H-indazole

生成物 1

HCID 712796602-[5-(tert-butyl-dimethyl-silanyloxy)-1-methyl-1H-indazol-3-yl]-5-(2-trimethylsilanyl-ethoxymethyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid isopropylamide収率 72%

試薬・触媒・溶媒 3

HCID 24350
Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)
触媒
HCID 178418397HCID 178418397、化合物触媒
HCID 6228Dimethylformamide溶媒

反応条件

温度
80 °C

実験手順

In a round-bottomed flask, 2-bromo-5-(2-trimethylsilanyl-ethoxymethyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid isopropylamide (100 mg, 0.24 mmol) and 5-(tert-butyl-dimethyl-silanyloxy)-1-methyl-3-tributylstannanyl-1H-indazole (crude from Step 4) were dissolved in DMF (2 ml). The flask was evacuated and backfilled with argon then tetrakis(triphenylphosphine)palladium (0) (14 mg, 0.012 mmol) and copper (I) iodide (10 mg, 0.053 mmol) were added. The reaction mixture was stirred at 80° C. for 2 h then cooled to room temperature, quenched with water and extracted with diethyl ether (2×). The combined organic layers were washed twice with water and once with brine then dried over sodium sulfate, filtered and concentrated. The residue was chromatographed over silica gel with EtOAc/hexanes (gradient 0-30% EtOAc) to afford 104 mg (72%) of 2-[5-(tert-butyl-dimethyl-silanyloxy)-1-methyl-1H-indazol-3-yl]-5-(2-trimethylsilanyl-ethoxymethyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid isopropylamide as a light yellow solid.

後処理

  1. customThe flask was evacuated
  2. temperaturethen cooled to room temperature
  3. customquenched with water
  4. extractionextracted with diethyl ether (2×)
  5. washThe combined organic layers were washed twice with water and once with brine
  6. dry with materialthen dried over sodium sulfate
  7. filtrationfiltered
  8. concentrationconcentrated
  9. customThe residue was chromatographed over silica gel with EtOAc/hexanes (gradient 0-30% EtOAc)

出典と根拠

ORDレコード
ord-8535c24e3eda4f2e85bc72f1eafc80c1
出典データセット
uspto-grants-2014_02
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08658646B2

反応ノート

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