Methyl iodide → 6-(2,4-Difluorophenoxy)-4-methyl-1-(2-trimethylsilanyl-ethoxymethyl)-1,4-dihydro-pyrazolo[4,3-b]pyridin-5-one

HRID 230176ノート

反応式

HRID 230176 の反応式
[F:1][C:2]1[CH:26]=[C:25]([F:27])[CH:24]=[CH:23][C:3]=1[O:4][C:5]1[C:10](=[O:11])[NH:9][C:8]2[CH:12]=[N:13][N:14]([CH2:15][O:16][CH2:17][CH2:18][Si:19]([CH3:22])([CH3:21])[CH3:20])[C:7]=2[CH:6]=1.[H-].[Na+].[CH3:30]I>CN(C)C=O.C(OCC)(=O)C.O>[F:1][C:2]1[CH:26]=[C:25]([F:27])[CH:24]=[CH:23][C:3]=1[O:4][C:5]1[C:10](=[O:11])[N:9]([CH3:30])[C:8]2[CH:12]=[N:13][N:14]([CH2:15][O:16][CH2:17][CH2:18][Si:19]([CH3:22])([CH3:20])[CH3:21])[C:7]=2[CH:6]=1

参加物

7

反応物 3

HCID 6328Methyl iodideHCID 24758Sodium hydrideHCID 598129756-(2,4-Difluorophenoxy)-1-(2-trimethylsilanyl-ethoxymethyl)-1,4-dihydro-pyrazolo[4,3-b]pyridin-5-one

生成物 1

HCID 598128336-(2,4-Difluorophenoxy)-4-methyl-1-(2-trimethylsilanyl-ethoxymethyl)-1,4-dihydro-pyrazolo[4,3-b]pyridin-5-one

試薬・触媒・溶媒 3

HCID 962Water溶媒HCID 6228Dimethylformamide溶媒HCID 8857Ethyl Acetate溶媒

実験手順

To a 0° C. solution of 6-(2,4-difluorophenoxy)-1-(2-trimethylsilanyl-ethoxymethyl)-1,4-dihydro-pyrazolo[4,3-b]pyridin-5-one (98 mg, 0.249 mmol) in dimethylformamide (1 mL) was added sodium hydride (60% dispersion in oil, Aldrich) (15 mg, 1.5 eq) and the resulting mixture was stirred at for 30 minutes, after which methyl iodide (25 μL, 1.5 eq) was added and the mixture was stirred additional 1 hour with warming from 0° C. to room temperature. The reaction mixture was diluted with ethyl acetate (35 mL) and water (25 mL). The organic layer was separated, washed with water (2×25 mL) and brine (1×25 mL), dried over magnesium sulfate, filtered and concentrated to give the title compound as a tan powder (118 mg, (M+H)+=408).

後処理

  1. stirringthe mixture was stirred additional 1 hour
  2. temperaturewith warming from 0° C. to room temperature
  3. customThe organic layer was separated
  4. washwashed with water (2×25 mL) and brine (1×25 mL)
  5. dry with materialdried over magnesium sulfate
  6. filtrationfiltered
  7. concentrationconcentrated

出典と根拠

ORDレコード
ord-d899451d1b314e5891e566d1866fce45
出典データセット
uspto-grants-2009_07
特許番号
US07566708B2

反応ノート

読み込み中…