Seyyed Mohammad Shahcheragh; Azizollah Habibi; Masoomeh Shirzad; Yekta Farahani; Soroush Sardari
Abstract
In the present study, a one-pot, green and three-component route for synthesis of Thiocarbohydrazone (TCS) derivatives is described. This reaction was performed in choline chloride/urea (1:2) as Deep Eutectic Solvent (DES). The structures were characterized by FTIR, 1H NMR, 13C NMR spectra and elemental ...
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In the present study, a one-pot, green and three-component route for synthesis of Thiocarbohydrazone (TCS) derivatives is described. This reaction was performed in choline chloride/urea (1:2) as Deep Eutectic Solvent (DES). The structures were characterized by FTIR, 1H NMR, 13C NMR spectra and elemental analysis. The derivatives were evaluated for their anti-mycobacterial activity against Mycobacterium bovis BCG, and the results revealed that among the synthesized compounds (1a-1h, 2a-2h, 3a-3h), 3b, 3c and 1b exhibited the highest activity with MIC value of 7.81 and 11.71 μg/mL. Additionally, the target compounds were evaluated for their anti-microbial activity against E.coli and Candida Albicans and the result indicated that in contrast to the low antifungal activity, the produced derivatives with electron-withdrawing substitution at the ortho, meta and para positions of benzyl ring includes 1d, 2b and 3d-3g demonstrated remarkable anti-micobacterial activities.
Maryam Naderi Mezajin; Mahdi Fatemizadeh; Zahra Rostami; Pejvak Khaki; Masoomeh Shirzad; Fatemeh Noorbakhsh
Abstract
The aim of this study was to investigate the antibiotic resistance and identification of strains producing broad-spectrum beta-lactamases salmonella strains. The 70 different strains of salmonella were studied that gentamicin, ciprofloxacin, ofloxacin, imipenem, and enrofloxacin were susceptible. The ...
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The aim of this study was to investigate the antibiotic resistance and identification of strains producing broad-spectrum beta-lactamases salmonella strains. The 70 different strains of salmonella were studied that gentamicin, ciprofloxacin, ofloxacin, imipenem, and enrofloxacin were susceptible. The highest resistance to cephalexin (96 %), cefazolin (96 %), cephalothin (65 %), and 69 isolates (98 %), were resistant to more than one antibiotic. The results of the Polymerase Chain Reaction (PCR) were evaluated on ESBL producing isolates using specific primers; in order to investigate the presence of CTX-Mbla, SHVbla, TEMbla and OXAbla, so the presence of germ cell resistance genes in total indicated that 32 isolates (56 %), at least one of the above genes.
