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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 610224
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HRID 610224 반응식
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]
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

5

반응물 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

생성물 1

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

시약·촉매·용매 1

HCID 962
Water
용매

실험 절차

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-fluoropyridin-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.

후처리

  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

출처 및 근거

ORD 기록
ord-abcc3e30eac64fd2848411b21d9172dd
출처 데이터셋
uspto-grants-1999_12
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US05998436

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