title: A new class of nifuroxazide analogues: synthesis of 5-nitrothiophene derivatives with antimicrobial activity against multidrug-resistant Staphylococcus aureus.
abstract: Hospital-acquired methicillin-resistant Staphylococcus aureus (MRSA) has been an increasing problem worldwide since the initial reports over 40 years ago. To examine new drug leads with potential antibacterial activities, 14 p-substituted benzoic acid [(5-nitro-thiophen-2-yl)-methylene]-hydrazides were designed, synthesized, and tested against standard and multidrug-resistant S. aureus strains by serial dilution tests. All compounds exhibited significant bacteriostatic activity and some of them also showed bactericidal activity. The results confirmed the potential of this class of compounds as an alternative for the development of selective antimicrobial agents.
authors.affiliation: Laboratório de Planejamento e Desenvolvimento de Fármacos, Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, Av. Prof. Lineu Prestes, 580, São Paulo, SP 05508-900, Brazil. andreamasunari@yahoo.com.br
authors.forename: Andrea
authors.initials: A
authors.lastname: Masunari
authors.forename: Leoberto Costa
authors.initials: LC
authors.lastname: Tavares
mesh_terms: D000890:Anti-Infective Agents / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*; D018432:Drug Resistance, Multiple; D062385:Hydroxybenzoates / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*; D009682:Magnetic Resonance Spectroscopy; D016106:Methicillin Resistance; D008826:Microbial Sensitivity Tests; D009581:Nitrofurans / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*; D013055:Spectrophotometry, Infrared; D013211:Staphylococcus aureus / Q000187:drug effects*
chemical_list: D000890:Anti-Infective Agents; D062385:Hydroxybenzoates; D009581:Nitrofurans; C013150:nifuroxazide