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Methanesulfonic Acid → 4-[2-(4,5-Dimethyl-thiazol-2-yl)-5,6-dimethyl-pyridin-3-yloxy]-6-methoxy-quinolin-7-ol

HRID 229080
ノート
印刷プレビュー

反応式

HRID 229080 の反応式
C([O:8][C:9]1[CH:18]=[C:17]2[C:12]([C:13]([O:19][C:20]3[C:21]([C:28]4[S:29][C:30]([CH3:34])=[C:31]([CH3:33])[N:32]=4)=[N:22][C:23]([CH3:27])=[C:24]([CH3:26])[CH:25]=3)=[CH:14][CH:15]=[N:16]2)=[CH:11][C:10]=1[O:35][CH3:36])C1C=CC=CC=1.CS(O)(=O)=O>FC(F)(F)C(O)=O>[CH3:33][C:31]1[N:32]=[C:28]([C:21]2[C:20]([O:19][C:13]3[C:12]4[C:17](=[CH:18][C:9]([OH:8])=[C:10]([O:35][CH3:36])[CH:11]=4)[N:16]=[CH:15][CH:14]=3)=[CH:25][C:24]([CH3:26])=[C:23]([CH3:27])[N:22]=2)[S:29][C:30]=1[CH3:34]
参加物反応条件実験手順後処理出典と根拠反応ノート

参加物

4

反応物 2

HCID 6395Methanesulfonic AcidHCID 230782777-Benzyloxy-4-[2-(4,5-dimethyl-thiazol-2-yl)-5,6-dimethyl-pyridin-3-yloxy]-6-methoxy-quinoline2 回

生成物 1

HCID 1361316164-[2-(4,5-Dimethyl-thiazol-2-yl)-5,6-dimethyl-pyridin-3-yloxy]-6-methoxy-quinolin-7-ol収率 91%

試薬・触媒・溶媒 1

HCID 6422Trifluoroacetic acid溶媒

反応条件

温度
70 °C

実験手順

7-Benzyloxy-4-[2-(4,5-dimethyl-thiazol-2-yl)-5,6-dimethyl-pyridin-3-yloxy]-6-methoxy-quinoline (compound 454) (254 mg) was dissolved in trifluoroacetic acid (3 ml) to prepare a solution. Methanesulfonic acid (0.3 ml) was added to the solution, and the mixture was stirred at 70° C. for one hr. The reaction solution was cooled to room temperature, and the solvent was removed by distillation under the reduced pressure. An aqueous sodium hydrogencarbonate solution was then added to the residue, and the mixture was extracted with chloroform. The chloroform layer was washed with saturated brine and was dried over anhydrous sodium sulfate. The solvent was removed by distillation under the reduced pressure, and the residue was purified by thin layer chromatography using chloroform-methanol to give the title compound (189 mg, yield 91%).

後処理

  1. customto prepare a solution
  2. temperatureThe reaction solution was cooled to room temperature
  3. customthe solvent was removed by distillation under the reduced pressure
  4. additionAn aqueous sodium hydrogencarbonate solution was then added to the residue
  5. extractionthe mixture was extracted with chloroform
  6. washThe chloroform layer was washed with saturated brine
  7. dry with materialwas dried over anhydrous sodium sulfate
  8. customThe solvent was removed by distillation under the reduced pressure
  9. customthe residue was purified by thin layer chromatography

出典と根拠

ORDレコード
ord-a4c9e7cf96af4380a7164d9f5b49c349
出典データセット
uspto-grants-2009_07
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US07560558B2

反応ノート

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