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

HRID 2263294

반응식

HRID 2263294 반응식
[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

참가 물질

6

반응 조건

온도
70 °C

실험 절차

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.

후처리

  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

출처 및 근거

ORD 기록
ord-a63d64f1c70349f7a437e363b86e3921
출처 데이터셋
uspto-grants-2010_12
특허 번호
US07851473B2

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