Dimethyl Sulfoxide → N-1,2-benzisoxazol-3-yl-4-(4-phenyl-1,3-oxazol-2-yl)piperazine-1-carboxamide

HRID 2262902ノート

反応式

HRID 2262902 の反応式
[C:1]1([C:7]2[N:8]=[C:9]([N:12]3[CH2:17][CH2:16][NH:15][CH2:14][CH2:13]3)[O:10][CH:11]=2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[O:18]1[C:22]2[CH:23]=[CH:24][CH:25]=[CH:26][C:21]=2[C:20]([N:27](C(OCC(Cl)(Cl)Cl)=O)[C:28](OCC(Cl)(Cl)Cl)=[O:29])=[N:19]1.C(N(C(C)C)CC)(C)C.CS(C)=O>O>[O:18]1[C:22]2[CH:23]=[CH:24][CH:25]=[CH:26][C:21]=2[C:20]([NH:27][C:28]([N:15]2[CH2:16][CH2:17][N:12]([C:9]3[O:10][CH:11]=[C:7]([C:1]4[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=4)[N:8]=3)[CH2:13][CH2:14]2)=[O:29])=[N:19]1

参加物

6

反応物 4

HCID 679Dimethyl SulfoxideHCID 81531DiisopropylethylamineHCID 687757351-(4-Phenyl-1,3-oxazol-2-yl)piperazineHCID 86625471Bis(2,2,2-trichloroethyl) 1,2-benzisoxazol-3-ylimidodicarbonate

生成物 1

HCID 68777876N-1,2-benzisoxazol-3-yl-4-(4-phenyl-1,3-oxazol-2-yl)piperazine-1-carboxamide

試薬・触媒・溶媒 1

HCID 962Water溶媒

反応条件

温度
70 °C

実験手順

A mixture of 1-(4-Phenyl-1,3-oxazol-2-yl)piperazine (391 mg, 0.807 mmol), bis(2,2,2-trichloroethyl) 1,2-benzisoxazol-3-ylimidodicarbonate (370 mg, 1.61 mmol), diisopropylethylamine (0.141 ml, 0.807 mmol) and dimethylsulfoxide (5 ml) was stirred at 70° C. for 2 hours. The reaction mixture was poured to water and extracted with ethyl acetate. The extract was washed with water and dried over anhydrous magnesium sulfate. The solvent was distilled off under reduced pressure. The residue was purified by silica gel column chromatography (hexane:ethyl acetate=2:1) to give the desired product as a solid. The resulting solid was recrystallized from a mixed solvent of ethyl acetate and hexane to give 44.0 mg (14.1%) of the desired product. mp 171-172° C.

後処理

  1. extractionextracted 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 (hexane:ethyl acetate=2:1)

出典と根拠

ORDレコード
ord-9ae19a1ebc874e4193a4b0ba44e69f4c
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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