Water → N-(1,3-Dimethyl-1H-pyrazol-5-yl)-4-(3-phenyl-1,2,4-thiadiazol-5-yl)piperazine-1-carboxamide

HRID 2263165ノート

反応式

HRID 2263165 の反応式
[CH3:1][N:2]1[C:6]([NH:7][C:8](=[O:15])OCC(Cl)(Cl)Cl)=[CH:5][C:4]([CH3:16])=[N:3]1.[C:17]1([C:23]2[N:27]=[C:26]([N:28]3[CH2:33][CH2:32][NH:31][CH2:30][CH2:29]3)[S:25][N:24]=2)[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=1.C(N(C(C)C)CC)(C)C.O>CS(C)=O>[CH3:1][N:2]1[C:6]([NH:7][C:8]([N:31]2[CH2:32][CH2:33][N:28]([C:26]3[S:25][N:24]=[C:23]([C:17]4[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=4)[N:27]=3)[CH2:29][CH2:30]2)=[O:15])=[CH:5][C:4]([CH3:16])=[N:3]1

参加物

6

反応物 4

HCID 962WaterHCID 81531DiisopropylethylamineHCID 27777601-(3-Phenyl-(1,2,4)thiadiazol-5-yl)-piperazineHCID 866255062,2,2-Trichloroethyl (1,3-dimethyl-1H-pyrazol-5-yl)carbamate

生成物 1

HCID 68777879N-(1,3-Dimethyl-1H-pyrazol-5-yl)-4-(3-phenyl-1,2,4-thiadiazol-5-yl)piperazine-1-carboxamide収率 46.9%

試薬・触媒・溶媒 1

HCID 679Dimethyl Sulfoxide溶媒

反応条件

温度
70 °C

実験手順

A mixture of 2,2,2-trichloroethyl (1,3-dimethyl-1H-pyrazol-5-yl)carbamate (256 mg, 0.893 mmol), 1-(3-phenyl-1,2,4-thiadiazol-5-yl)piperazine (200 mg, 0.812 mmol) and diisopropylethylamine (0.156 ml, 0.893 mmol) in dimethylsulfoxide (2.7 ml) was stirred at 70° C. for 15 hours. Water was poured into the reaction solution, 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 146 mg (46.9%) 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-bb997fb9cf5d4baf94c1884dc5ec4a00
出典データセット
uspto-grants-2010_12
特許番号
US07851473B2

反応ノート

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