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Current Medicinal Chemistry

Editor-in-Chief

ISSN (Print): 0929-8673
ISSN (Online): 1875-533X

The 4-Quinolone-3-Carboxylic Acid Motif as a Multivalent Scaffold in Medicinal Chemistry

Author(s): Claudia Mugnaini, Serena Pasquini and Federico Corelli

Volume 16 , Issue 14 , 2009

Page: [1746 - 1767] Pages: 22

DOI: 10.2174/092986709788186156

Price: $65

Abstract

Quinolones are among the most common frameworks present in the bioactive molecules and hence represent an attractive starting point for the design of combinatorial libraries. Since 1962 4-quinolone-3-carboxylic acid derivatives are clinically used as antibacterial agents worldwide. Currently, fluoroquinolones are approved by the WHO as second-line drugs to treat tuberculosis (TB), and their use in multidrug-resistant (MDR)-TB is increasing due to the fact that they have a broad and potent spectrum of activity and can be administered orally. In the last years, quinolones endowed with “nonclassical” biological activities, such as antitumor, anti-HIV-1 integrase, cannabinoid receptor 2 agonist/antagonist activities, have been reported by our research group as well as by other researchers. This review focuses on the 4-quinolone-3- carboxylic acid motif as a privileged structure in medicinal chemistry for obtaining new compounds possessing antibacterial, antitumor, anti-HIV, and cannabinoid receptors modulating activities. Synthetic approaches, structure-activity relationships, mechanisms of action, and therapeutic potentials of these novel classes of pharmacologically active compounds are presented.

Keywords: Quinolones, HIV-1 integrase inhibitors, anti-tumor agents, CB2 agonists, drug design, privileged structure


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