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Letters in Organic Chemistry

Editor-in-Chief

ISSN (Print): 1570-1786
ISSN (Online): 1875-6255

A Convenient Synthesis of 1-Alkyl-7-chloro-6-fluoro-3-nitro-4-quinolones

Author(s): Raed A. Al-Qawasmeh, Jalal A. Zahra, Monther A. Khanfar, Yusuf M. AL-Hiari, Mustafa M. El-Abadelah and Wolfgang Voelter

Volume 6, Issue 6, 2009

Page: [511 - 514] Pages: 4

DOI: 10.2174/157017809789124812

Price: $65

Abstract

A convenient one-pot synthesis of 1-alkyl-7-chloro-6-flouro-3-nitro-1,4-dihydro-4-quinolones is described via nitro-decarboxylation of the respective 4-oxo-1,4-dihydroquinoline-3-carboxylic acid precursors. Reduction of the former 3-nitroquinolones delivered the corresponding 3-aminoquinolones, envisaged as valuable synthons in drug research.

Keywords: Fluoroquinolones, 1-alkyl-4-oxoquioline-3-carboxylic acids, fuming nitric acid, nitro-decarboxylation, 1-alkyl-3-nitro-4-quinolones, 1-cycloalkyl-3-nitro-4-quinolones

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