1-Methylpiperazine → 6,8-Difluoro-1-(4-fluorophenyl)-7-(4-methylpiperazin-1-yl)-4-oxo-quinoline-3-carboxylic acid

HRID 703082ノート

反応式

HRID 703082 の反応式
[F:1][C:2]1[CH:3]=[C:4]2[C:9](=[C:10]([F:13])[C:11]=1F)[N:8]([C:14]1[CH:19]=[CH:18][C:17]([F:20])=[CH:16][CH:15]=1)[CH:7]=[C:6]([C:21]([OH:23])=[O:22])[C:5]2=[O:24].[CH3:25][N:26]1[CH2:31][CH2:30][NH:29][CH2:28][CH2:27]1>N1C=CC=CC=1>[F:1][C:2]1[CH:3]=[C:4]2[C:9](=[C:10]([F:13])[C:11]=1[N:29]1[CH2:30][CH2:31][N:26]([CH3:25])[CH2:27][CH2:28]1)[N:8]([C:14]1[CH:15]=[CH:16][C:17]([F:20])=[CH:18][CH:19]=1)[CH:7]=[C:6]([C:21]([OH:23])=[O:22])[C:5]2=[O:24]

参加物

4

反応物 2

HCID 531671-MethylpiperazineHCID 137283301-(4-Fluorophenyl)-6,7,8-trifluoro-1,4-dihydro-4-oxo-3-quinolinecarboxylic acid

生成物 1

HCID 4831506,8-Difluoro-1-(4-fluorophenyl)-7-(4-methylpiperazin-1-yl)-4-oxo-quinoline-3-carboxylic acid

試薬・触媒・溶媒 1

HCID 1049Pyridine溶媒

実験手順

3 g of 6,7,8-trifluoro-1,4-dihydro-4-oxo-1-(4-fluoro-phenyl)-quinoline-3-carboxylic acid are refluxed in 30 ml of pyridine with 2.7 g of N-methylpiperazine for 6 hours. The solvent is distilled off in vacuo, the residue is taken up in 30 ml of water and the precipitate is filtered off cold with suction, washed with water, dried in vacuo over calcium chloride at 100° C. and recrystallized from glycol monomethyl ether.

後処理

  1. distillationThe solvent is distilled off in vacuo
  2. filtrationthe precipitate is filtered off cold with suction
  3. washwashed with water
  4. dry with materialdried in vacuo over calcium chloride at 100° C.
  5. customrecrystallized from glycol monomethyl ether

出典と根拠

ORDレコード
ord-8a265890c15344b69464acb84ed8c1ef
出典データセット
uspto-grants-1991_01
特許番号
US04981854

反応ノート

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