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Potassium Hydroxide → 9-Fluoro-8-[4-(4-fluorophenyl)piperazin-1-yl]-4-methyl-1-oxo-1,4-dihydrobenzo[f][1,7]naphthyridine-2-carboxylic acid

HRID 413060
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HRID 413060 반응식
[F:1][C:2]1[C:3]([N:23]2[CH2:28][CH2:27][N:26]([C:29]3[CH:34]=[CH:33][C:32]([F:35])=[CH:31][CH:30]=3)[CH2:25][CH2:24]2)=[CH:4][C:5]2[N:14]=[CH:13][C:12]3[N:11]([CH3:15])[CH:10]=[C:9]([C:16]([O:18]CC)=[O:17])[C:8](=[O:21])[C:7]=3[C:6]=2[CH:22]=1.[OH-].[K+]>C(O)C>[F:1][C:2]1[C:3]([N:23]2[CH2:24][CH2:25][N:26]([C:29]3[CH:30]=[CH:31][C:32]([F:35])=[CH:33][CH:34]=3)[CH2:27][CH2:28]2)=[CH:4][C:5]2[N:14]=[CH:13][C:12]3[N:11]([CH3:15])[CH:10]=[C:9]([C:16]([OH:18])=[O:17])[C:8](=[O:21])[C:7]=3[C:6]=2[CH:22]=1
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참가 물질

4

반응물 2

HCID 14797Potassium HydroxideHCID 18523292Ethyl 9-fluoro-8-[4-(4-fluorophenyl)piperazin-1-yl]-4-methyl-1-oxo-1,4-dihydrobenzo[f] [1,7]naphthyridine-2-carboxylate

생성물 1

HCID 185232229-Fluoro-8-[4-(4-fluorophenyl)piperazin-1-yl]-4-methyl-1-oxo-1,4-dihydrobenzo[f][1,7]naphthyridine-2-carboxylic acid수율 85%

시약·촉매·용매 1

HCID 702Ethanol용매

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온도
80 °C

실험 절차

A suspension of 0.70 g of ethyl 9-fluoro-8-[4-(4-fluorophenyl)piperazin-1-yl]-4-methyl-1-oxo-1,4-dihydrobenzo[f][1,7]naphthyridine-2-carboxylate in a mixture of 250 cm3 of ethanol at 40% and 4 cm3 of a 1 N aqueous potassium hydroxide solution was heated, with stirring, for 8 hours at a temperature of 80° C. After cooling to a temperature of 60° C., the light insoluble material was removed by filtration. The solution was neutralized with 4.1 cm3 of a 1 N aqueous hydrochloric acid solution; the insoluble material formed was dewatered, washed 3 times with 20 cm3 of water and twice with 20 cm3 of ethanol and dried under vacuum at 100° C. 0.56 g of 9-fluoro-8-[4-(4-fluorophenyl)piperazin-1-yl]-4-methyl-1-oxo-1,4-dihydrobenzo[f][1,7]naphthyridine-2-carboxylic acid was obtained in the form of yellow crystals, which melted at 346° C.

후처리

  1. temperaturewas heated
  2. temperatureAfter cooling to a temperature of 60° C.
  3. customthe light insoluble material was removed by filtration
  4. customthe insoluble material formed
  5. washwashed 3 times with 20 cm3 of water
  6. dry with materialtwice with 20 cm3 of ethanol and dried under vacuum at 100° C

출처 및 근거

ORD 기록
ord-c6c6a714db904deca490aec9e8bd24d8
출처 데이터셋
uspto-grants-2003_05
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US06566362B2

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