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Acetic Acid → 5-amino-6,7-difluoro-1-[(1R,2S)-2-fluorocyclopropyl]-8-methyl-1,4-dihydro-4-oxoquinoline-3-carboxylic acid

HRID 1458007
ノート
印刷プレビュー

反応式

HRID 1458007 の反応式
[NH2:1][C:2]1[C:11]([F:12])=[C:10]([F:13])[C:9]([CH3:14])=[C:8]2[C:3]=1[C:4](=[O:24])[C:5]([C:19]([O:21]CC)=[O:20])=[CH:6][N:7]2[C@@H:15]1[CH2:17][C@@H:16]1[F:18].C(O)(=O)C.Cl>O>[NH2:1][C:2]1[C:11]([F:12])=[C:10]([F:13])[C:9]([CH3:14])=[C:8]2[C:3]=1[C:4](=[O:24])[C:5]([C:19]([OH:21])=[O:20])=[CH:6][N:7]2[C@@H:15]1[CH2:17][C@@H:16]1[F:18]
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 11759598Ethyl 5-amino-6,7-difluoro-[(1R,2S)-2-fluorocyclopropyl]-1,4-dihydro-8-methyl-4-oxoquinoline-3-carboxylate

生成物 1

HCID 110233625-amino-6,7-difluoro-1-[(1R,2S)-2-fluorocyclopropyl]-8-methyl-1,4-dihydro-4-oxoquinoline-3-carboxylic acid収率 79%

試薬・触媒・溶媒 1

HCID 962Water
溶媒

実験手順

A 10.43 g (30.6 mmol) portion of ethyl 5-amino-6,7-difluoro-[(1R,2S)-2-fluorocyclopropyl]-1,4-dihydro-8-methyl-4-oxoquinoline-3-carboxylate was mixed with 150 ml of acetic acid and 150 ml of concentrated hydrochloric acid and then heated under reflux for 1 hour. After completion of the reaction, the reaction solution was spontaneously cooled and mixed with 700 ml of water. The thus formed crystals were collected by filtration, washed with water (100 ml×2), ethanol (300 ml×1) and ether (300 ml×1) in that order and then dried to yield 7.52 g (79%) of the title compound.

後処理

  1. temperatureheated
  2. temperatureunder reflux for 1 hour
  3. customAfter completion of the reaction
  4. temperaturethe reaction solution was spontaneously cooled
  5. filtrationThe thus formed crystals were collected by filtration
  6. washwashed with water (100 ml×2), ethanol (300 ml×1) and ether (300 ml×1) in that order
  7. customdried

出典と根拠

ORDレコード
ord-2d795fe8efbf4ddb88450310da64d819
出典データセット
uspto-grants-1998_12
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US05849757

反応ノート

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