Water → 4-[4-(2,4-difluorophenyl)-1,3-thiazol-2-yl]-N-pyridazin-3-ylpiperazine-1-carboxamide

HRID 2263294

反応式

HRID 2263294 の反応式
[N:1]1[CH:6]=[CH:5][CH:4]=[C:3]([NH:7][C:8](=[O:15])OCC(Cl)(Cl)Cl)[N:2]=1.[F:16][C:17]1[CH:22]=[C:21]([F:23])[CH:20]=[CH:19][C:18]=1[C:24]1[N:25]=[C:26]([N:29]2[CH2:34][CH2:33][NH:32][CH2:31][CH2:30]2)[S:27][CH:28]=1.C(N(C(C)C)CC)(C)C.O>CS(C)=O>[F:16][C:17]1[CH:22]=[C:21]([F:23])[CH:20]=[CH:19][C:18]=1[C:24]1[N:25]=[C:26]([N:29]2[CH2:30][CH2:31][N:32]([C:8]([NH:7][C:3]3[N:2]=[N:1][CH:6]=[CH:5][CH:4]=3)=[O:15])[CH2:33][CH2:34]2)[S:27][CH:28]=1

参加物

6

反応条件

温度
70 °C

実験手順

A mixture of 2,2,2-trichloroethyl pyridazin-3-ylcarbamate (212 mg, 0.782 mmol), 1-[4-(2,4-difluorophenyl)-1,3-thiazol-2-yl]piperazine (200 mg, 0.711 mmol) and diisopropylethylamine (0.248 ml, 1.42 mmol) in dimethyl sulfoxide (2.5 ml) was stirred at 70° C. for 3 days. Water was poured to the reaction mixture, and the mixture was extracted with ethyl acetate. The extract was washed with water, and dried over anhydrous magnesium sulfate, and the solvent was distilled off under reduced pressure. The residue was purified by silica gel column chromatography (ethyl acetate), and recrystallized from a mixed solvent of hexane and tetrahydrofuran to give 136 mg (47.4%) of the desired product as a solid.

後処理

  1. extractionthe mixture was extracted with ethyl acetate
  2. washThe extract was washed with water
  3. dry with materialdried over anhydrous magnesium sulfate
  4. distillationthe solvent was distilled off under reduced pressure
  5. customThe residue was purified by silica gel column chromatography (ethyl acetate)
  6. customrecrystallized from a mixed solvent of hexane and tetrahydrofuran

出典と根拠

ORDレコード
ord-a63d64f1c70349f7a437e363b86e3921
出典データセット
uspto-grants-2010_12
特許番号
US07851473B2

関連ノート

読み込み中…