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Trifluoroacetic acid → 1-[[5-(4-fluorophenyl)-4-(4-pyridinyl)-1H-pyrazol-3-yl]carbonyl]piperazine, monohydrate

HRID 489953
ノート
印刷プレビュー

反応式

HRID 489953 の反応式
[F:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[NH:12][N:11]=[C:10]([C:13]([N:15]3[CH2:20][CH2:19][N:18](C(OC(C)(C)C)=O)[CH2:17][CH2:16]3)=[O:14])[C:9]=2[C:28]2[CH:33]=[CH:32][N:31]=[CH:30][CH:29]=2)=[CH:4][CH:3]=1.C(O)(C(F)(F)F)=[O:35]>C(Cl)Cl>[F:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[NH:12][N:11]=[C:10]([C:13]([N:15]3[CH2:20][CH2:19][NH:18][CH2:17][CH2:16]3)=[O:14])[C:9]=2[C:28]2[CH:29]=[CH:30][N:31]=[CH:32][CH:33]=2)=[CH:4][CH:3]=1.[OH2:35].[F:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[NH:12][N:11]=[C:10]([C:13]([N:15]3[CH2:20][CH2:19][NH:18][CH2:17][CH2:16]3)=[O:14])[C:9]=2[C:28]2[CH:29]=[CH:30][N:31]=[CH:32][CH:33]=2)=[CH:4][CH:3]=1
参加物実験手順後処理出典と根拠反応ノート

参加物

5

反応物 2

HCID 6422Trifluoroacetic acidHCID 178452358HCID 178452358、化合物

生成物 2

HCID 1785200611-[[5-(4-fluorophenyl)-4-(4-pyridinyl)-1H-pyrazol-3-yl]carbonyl]piperazineHCID 1785269461-[[5-(4-fluorophenyl)-4-(4-pyridinyl)-1H-pyrazol-3-yl]carbonyl]piperazine, monohydrate収率 96.4%

試薬・触媒・溶媒 1

HCID 6344Dichloromethane
溶媒

実験手順

A solution of 1,1-dimethylethyl 4-[[5-(4fluorophenyl)-4-(4-pyridinyl)-1H-pyrazol-3-yl]carbonyl]-1-piperazinecarboxylate (0.6349 g; 1.4077 mmol; prepared as set forth in step 2 of Example A-313) in methylene chloride (3.5 mL) and TFA (1.1 mL, 14.077 mmol) was stirred at room temperature under N2 for 2 hours. The solvents were removed under reduced pressure, and TFA was chased by methylene chloride and methanol. The resulting colorless oily residue was triturated with methanol. The resulting solid was collected by filtration and dried in a vacuum oven overnight to give the desired product 1-[[5-(4-fluorophenyl)-4-(4-pyridinyl)-1H-pyrazol-3-yl]carbonyl]piperazine, monohydrate (0.7860 g, 96.4%). Anal. Calc'd for C19H18N5OF.2TFA.H2O: C, 46.24; H, 3.71; N, 11.72; Found: C, 45.87; H, 3.43; N, 11.45. MS (MH+): 352 (base peak).

後処理

  1. customprepared
  2. customThe solvents were removed under reduced pressure, and TFA
  3. customThe resulting colorless oily residue was triturated with methanol
  4. filtrationThe resulting solid was collected by filtration
  5. customdried in a vacuum oven overnight

出典と根拠

ORDレコード
ord-34f580c185434511820ee9c5e17c6d74
出典データセット
uspto-grants-2005_12
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US06979686B1

反応ノート

読み込み中…

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