4-Piperidone → 1-Cyclopropyl-6-fluoro-7-(4-oxo-1-piperidinyl)-5-methyl-1,4-dihydro-4-oxoquinoline-3-carboxylic acid

HRID 486275

Reaktionsgleichung

Reaktionsgleichung von HRID 486275
[CH:1]1([N:4]2[C:13]3[C:8](=[C:9]([CH3:16])[C:10]([F:15])=[C:11](Br)[CH:12]=3)[C:7](=[O:17])[C:6]([C:18]([OH:20])=[O:19])=[CH:5]2)[CH2:3][CH2:2]1.[O:21]=[C:22]1[CH2:27][CH2:26][NH:25][CH2:24][CH2:23]1>CN1CCCC1=O>[CH:1]1([N:4]2[C:13]3[C:8](=[C:9]([CH3:16])[C:10]([F:15])=[C:11]([N:25]4[CH2:26][CH2:27][C:22](=[O:21])[CH2:23][CH2:24]4)[CH:12]=3)[C:7](=[O:17])[C:6]([C:18]([OH:20])=[O:19])=[CH:5]2)[CH2:3][CH2:2]1

Komponenten

4

Edukt 2

HCID 337214-PiperidoneHCID 101320157-Bromo-1-cyclopropyl-6-fluoro-5-methyl-4-oxo-1,4-dihydroquinoline-3-carboxylic acid

Produkt 1

HCID 189745021-Cyclopropyl-6-fluoro-7-(4-oxo-1-piperidinyl)-5-methyl-1,4-dihydro-4-oxoquinoline-3-carboxylic acidAusbeute 37,6 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 13387N-methyl-2-pyrrolidoneLösungsmittel

Reaktionsbedingungen

Temperatur
90 °C

Versuchsvorschrift

To a solution of 1-cyclopropyl-6-fluoro-7-bromo-5-methyl-1,4-dihydro-4-oxoquinoline-3-carboxylic acid (0.58 g) in N-methyl-2-pyrrolidone (5 ml) is added 4-oxopiperidine (0.64 g) and the mixture is heated at 90° C. for 20 minutes The solvent is distilled off under reduced pressure To the resulting residue is added ethanol and the precipitated crystals are filtered to give 1-cyclopropyl-6-fluoro-7-(4-oxo-1-piperidinyl)-5-methyl-1,4-dihydro-4-oxoquinoline-3-carboxylic acid (230 mg).

Aufarbeitung

  1. distillationis distilled off under reduced pressure To the resulting residue
  2. additionis added ethanol
  3. filtrationthe precipitated crystals are filtered

Quellen und Nachweise

ORD-Eintrag
ord-8b374cccf07d4c89a48754f3aea2edd8
Quelldatensatz
uspto-grants-1994_03
Patentnummer
US05290934

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