Diisopropyl Ether → 1-(6-Amino-3,5-difluoropyridin-2-yl)-8-bromo-7-(3-ethylaminoazetidin-1-yl)-6-fluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid

HRID 25175

反応式

HRID 25175 の反応式
[CH2:1]([NH:3][CH:4]1[CH2:7][NH:6][CH2:5]1)[CH3:2].[NH2:8][C:9]1[N:14]=[C:13]([N:15]2[C:24]3[C:19](=[CH:20][C:21]([F:27])=[C:22](F)[C:23]=3[Br:25])[C:18](=[O:28])[C:17]([C:29]([OH:31])=[O:30])=[CH:16]2)[C:12]([F:32])=[CH:11][C:10]=1[F:33].CN1CCCC1.C(OC(C)C)(C)C>CS(C)=O>[NH2:8][C:9]1[N:14]=[C:13]([N:15]2[C:24]3[C:19](=[CH:20][C:21]([F:27])=[C:22]([N:6]4[CH2:7][CH:4]([NH:3][CH2:1][CH3:2])[CH2:5]4)[C:23]=3[Br:25])[C:18](=[O:28])[C:17]([C:29]([OH:31])=[O:30])=[CH:16]2)[C:12]([F:32])=[CH:11][C:10]=1[F:33]

参加物

6

反応条件

温度
40 °C

実験手順

3-Ethylaminoazetidine (700 mg), 1-(6-amino-3,5-difluoropyridin-2-yl)-8-bromo-6,7-difluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (1.5 g), N-methyl-pyrrolidine (2.0 g)and dimethylsulfoxide (4.5 g) were combined, and the mixture was heated under stirring at 40° C. for 24 hours. After the mixture was allowed to cool down, isopropyl ether (10 mL) was added, the mixture was stirred, and a clear layer at the top of the mixture was removed. The same procedure was repeated once more, and the residue was concentrated under reduced pressure. Ethanol (5 mL) was added, and the mixture was heated under stirring at 70° C. for 30 minutes. The precipitated solid was collected by filtration. The title compound (1.38 g) was obtained.

後処理

  1. temperaturethe mixture was heated
  2. temperatureto cool down
  3. stirringthe mixture was stirred
  4. customa clear layer at the top of the mixture was removed
  5. concentrationthe residue was concentrated under reduced pressure
  6. additionEthanol (5 mL) was added
  7. temperaturethe mixture was heated
  8. stirringunder stirring at 70° C. for 30 minutes
  9. filtrationThe precipitated solid was collected by filtration

出典と根拠

ORDレコード
ord-f1b6525d2c034223888dbf7e1495eaa4
出典データセット
uspto-grants-2005_02
特許番号
US06858625B1

関連ノート

読み込み中…