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Acetic Acid → 1-(6-Amino-3-chloro-5-fluoropyridin-2-yl)-8-chloro-6,7-difluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid

HRID 368448
ノート
印刷プレビュー

反応式

HRID 368448 の反応式
Cl.C(O)(=O)C.C([NH:10][C:11]1[N:16]=[C:15]([N:17]2[C:26]3[C:21](=[CH:22][C:23]([F:29])=[C:24]([F:28])[C:25]=3[Cl:27])[C:20](=[O:30])[C:19]([C:31]([O:33]CC)=[O:32])=[CH:18]2)[C:14]([Cl:36])=[CH:13][C:12]=1[F:37])(C)(C)C>O>[NH2:10][C:11]1[N:16]=[C:15]([N:17]2[C:26]3[C:21](=[CH:22][C:23]([F:29])=[C:24]([F:28])[C:25]=3[Cl:27])[C:20](=[O:30])[C:19]([C:31]([OH:33])=[O:32])=[CH:18]2)[C:14]([Cl:36])=[CH:13][C:12]=1[F:37]
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 3

HCID 176Acetic AcidHCID 313Hydrochloric AcidHCID 22121286Ethyl 1-[6-(t-butylamino)-3-chloro-5-fluoropyridin-2-yl]-8-chloro-6,7-difluoro-4-oxo-1,4-dihydroquinoline-3-carboxylate

生成物 1

HCID 221211791-(6-Amino-3-chloro-5-fluoropyridin-2-yl)-8-chloro-6,7-difluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid収率 92.2%

試薬・触媒・溶媒 1

HCID 962
Water
溶媒

実験手順

To a mixed solution (1:1) of 2.5 ml of 4N hydrochloric acid and acetic acid was added 600 mg of ethyl 1-[6-(t-butylamino)-3-chloro-5-fluoropyridine-2-yl]-8-chloro-6,7-difluoro-4-oxo-1,4-dihydroquinoline-3-carboxylate, and the mixture was heated under reflux with stirring for 4.5 hours. After adding 2 ml of distilled water, the solution was allowed to cool and the precipitate was collected by filtration and washed with ethanol and diisopropylether successively to obtain 458 mg of the title compound as a pale yellow powder.

後処理

  1. temperaturethe mixture was heated
  2. temperatureunder reflux
  3. temperatureto cool
  4. filtrationthe precipitate was collected by filtration
  5. washwashed with ethanol and diisopropylether successively

出典と根拠

ORDレコード
ord-672c0207ad304015ba976691f517cf05
出典データセット
uspto-grants-2000_10
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US06133284

反応ノート

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