Title:
METHOD FOR PRODUCING ETHYL ETHER OF 6-FLUORINE-7-CHLORINE-1.4-DIHYDRO-4-OXO-3-QUINOLINECARBOXILIC ACID
Document Type and Number:
WIPO Patent Application WO/2003/074488
Kind Code:
A1
Abstract:
The invention relates to the method for producing ethyl ether of 6-fluorine-7-chlorine-1.4-dihydro-4-oxo-3-quinolinecarboxilic acid and involves a cyclisation reaction of diethyl ether of 3-chlorine-4-fluoroaniline methylene malonic acid in the presence of diesel fuel in the form of a solvent at a temperature ranging from 230 to 245 °C. A target compound is used as intermediate product to synthesize drugs having anti-infectious action. Said invention makes it possible to simplify the production process and increase the economic efficiency thereof.
Inventors:
MASLENNIKOV EVGENY IVANOVICH (RU)
STRUNIN BORIS PAVLOVICH (RU)
KALASTNIK VLADIMIR NIKOLAEVICH (RU)
GUSEINOV FIRUDIN ILYASOVICH (RU)
KHAEV EVGENY ANATOLIEVICH (RU)
KOVALEV VLADIMIR GRIGORIEVICH (RU)
STRUNIN BORIS PAVLOVICH (RU)
KALASTNIK VLADIMIR NIKOLAEVICH (RU)
GUSEINOV FIRUDIN ILYASOVICH (RU)
KHAEV EVGENY ANATOLIEVICH (RU)
KOVALEV VLADIMIR GRIGORIEVICH (RU)
Application Number:
PCT/RU2003/000094
Publication Date:
September 12, 2003
Filing Date:
March 03, 2003
Export Citation:
Assignee:
OBSCHESTVO S OGRANICHENNOI OTV (RU)
MASLENNIKOV EVGENY IVANOVICH (RU)
STRUNIN BORIS PAVLOVICH (RU)
KALASTNIK VLADIMIR NIKOLAEVICH (RU)
GUSEINOV FIRUDIN ILYASOVICH (RU)
KHAEV EVGENY ANATOLIEVICH (RU)
KOVALEV VLADIMIR GRIGORIEVICH (RU)
MASLENNIKOV EVGENY IVANOVICH (RU)
STRUNIN BORIS PAVLOVICH (RU)
KALASTNIK VLADIMIR NIKOLAEVICH (RU)
GUSEINOV FIRUDIN ILYASOVICH (RU)
KHAEV EVGENY ANATOLIEVICH (RU)
KOVALEV VLADIMIR GRIGORIEVICH (RU)
International Classes:
C07D215/56; (IPC1-7): C07D215/56
Foreign References:
| SU1786028A1 | ||||
| SU470113A3 | 1975-05-05 | |||
| US4868305A | 1989-09-19 | |||
| EP0230946A2 | 1987-08-05 | |||
| GB2163742A | 1986-03-05 |
Attorney, Agent or Firm:
Melentieva, Ljudmila Makhmutovna (a/ya 58 Ufa, 9, RU)
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