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Water → tert-butyl N-cyclopropylmethyl-N-[7-(2-methoxy-4,6-dimethylphenyl)-2-(methylsulfanyl)pyrazolo[1,5-a]pyridin-3-yl]carbamate

HRID 1865010
ノート
印刷プレビュー

反応式

HRID 1865010 の反応式
[CH3:1][O:2][C:3]1[CH:8]=[C:7]([CH3:9])[CH:6]=[C:5]([CH3:10])[C:4]=1[C:11]1[N:16]2[N:17]=[C:18]([S:28][CH3:29])[C:19]([NH:20][C:21](=[O:27])[O:22][C:23]([CH3:26])([CH3:25])[CH3:24])=[C:15]2[CH:14]=[CH:13][CH:12]=1.[H-].[Na+].Br[CH2:33][CH:34]1[CH2:36][CH2:35]1.O>CN(C)C=O.C(OCC)(=O)C>[CH:34]1([CH2:33][N:20]([C:19]2[C:18]([S:28][CH3:29])=[N:17][N:16]3[C:11]([C:4]4[C:5]([CH3:10])=[CH:6][C:7]([CH3:9])=[CH:8][C:3]=4[O:2][CH3:1])=[CH:12][CH:13]=[CH:14][C:15]=23)[C:21](=[O:27])[O:22][C:23]([CH3:25])([CH3:24])[CH3:26])[CH2:36][CH2:35]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

7

反応物 4

HCID 962WaterHCID 24758Sodium hydrideHCID 81503BromomethylcyclopropaneHCID 21984503tert-Butyl N-[7-(2-methoxy-4,6-dimethylphenyl)-2-(methylsulfanyl)pyrazolo[1,5-a]pyridin-3-yl]carbamate

生成物 1

HCID 21984731tert-butyl N-cyclopropylmethyl-N-[7-(2-methoxy-4,6-dimethylphenyl)-2-(methylsulfanyl)pyrazolo[1,5-a]pyridin-3-yl]carbamate

試薬・触媒・溶媒 2

HCID 6228Dimethylformamide溶媒
HCID 8857Ethyl Acetate溶媒

反応条件

温度
40 °C

実験手順

After dissolving tert-butyl N-[7-(2-methoxy-4,6-dimethylphenyl)-2-(methylsulfanyl)pyrazolo[1,5-a]pyridin-3-yl]carbamate (400 mg) in N,N-dimethylformamide (5 mL), sodium hydride (60%, 58 mg) was added while cooling on ice, and then (bromomethyl)cyclopropane (111 μL) was added and the mixture was stirred for 1 hour at 40° C. Water was added to the reaction mixture, extraction was performed with ethyl acetate and the extract washed with brine. After drying the obtained organic layer over anhydrous magnesium sulfate and filtering it, the solvent was concentrated under reduced pressure to obtain crude tert-butyl N-cyclopropylmethyl-N-[7-(2-methoxy-4,6-dimethylphenyl)-2-(methylsulfanyl)pyrazolo[1,5-a]pyridin-3-yl]carbamate. This was dissolved in ethyl acetate (10 mL) without purification, a 4 N hydrochloric acid/ethyl acetate solution (20 mL) was added, and the mixture was stirred at 40° C. for 1 hour. The reaction mixture was neutralized with 5 N aqueous sodium hydroxide while cooling on ice, and then extraction was performed with ethyl acetate and the organic layer was washed with brine. After drying over anhydrous magnesium sulfate and filtration, the solvent was distilled off under reduced pressure to obtain the title compound (368 mg) as a yellow oil.

後処理

  1. additionwas added
  2. temperaturewhile cooling on ice
  3. washthe extract washed with brine
  4. dry with materialAfter drying the obtained organic layer over anhydrous magnesium sulfate
  5. filtrationfiltering it
  6. concentrationthe solvent was concentrated under reduced pressure

出典と根拠

ORDレコード
ord-51fcdd5a9963405ca4958af7d9d2ffba
出典データセット
uspto-grants-2009_12
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US07625925B2

反応ノート

読み込み中…

このページの内容参加物反応条件実験手順後処理出典と根拠反応ノート