Examination of in vitro activities of some naphthalenyloxypropanol derivatives against multi-drug resistant bacteria

Abstract

Treatment of multi-drug resistant bacteria is a growing problem for the whole World and the need for new antibacterial drug is increasing day by day. Herein, oxipropanolamine derivatives from α-naphthol compound were synthesized and the activities against MDR (multi-drug resistant) bacteria were evaluated. Strains of S. aureus which is one of Gram-positive bacteria and A. baumannii, P. aeruginosa, E. coli which are of Gram-negative bacteria were used.The tested bacteria are Gram-pozitif stain of S. aureus and Gram-negatif stains of A. baumannii, P. aeruginosa, E. coli. For the synthesis of compounds 2a-d which were used in the study, firstly 2-((naphthalen-1-yloxy)methyl) oxirane was obtained with the reaction of α-naphthol with epichlorohydrin and then reacted with four diffrent amine groups to obtain 2a-d derivatives. in vitro activities of these compounds against MDR bacteria were determined by the Kirby-Bauer method according to CLSI standards. While the obtained compounds 2a, 2b and 2c have more antibacterial activity than other tested antibacterials, the compound 2d has shown moderate or blow antibacterial activity against Gram-negative bacteria, but has a high activity against gram-positive bacteria S. aureus.

Keywords

• Naphthol
• Oxipropanolamine
• Antibacterial
• Drug Resistance
• Multidrug Resistance