2011
DOI: 10.5897/ajpp10.408
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Influence of the aryl substituent identity in 4-arylamino-3-nitrocoumarins on their antimicrobial activity

Abstract: Two new and six previously known coumarin derivatives with promising biological properties were synthesized in moderate to good yields by reaction of 4-chloro-3-nitro-coumarin and the appropriate arylamine in ethyl acetate in the presence of triethylamine. The synthesized compounds were evaluated for their in vitro antibacterial and antifungal activities against pathogenic strains. A correlation between the aryl substituent identity and antimicrobial activity was discussed.

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Cited by 10 publications
(4 citation statements)
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“…Tetracycline and Nystatine were used as the reference drugs. 53 A series of new coumarin derived carboxylate ligands and their silver(I) complexes (20) were synthesized, characterized and screened by Creaven et al for their in-vitro antibacterial activity against a range of Gram positive stains and Gram negative as well as for their antifungal activity. While none of the ligands showed any antimicrobial activity, a number of the Ag(I) complexes exhibited potent activity.…”
Section: Antimicrobal Activitymentioning
confidence: 99%
“…Tetracycline and Nystatine were used as the reference drugs. 53 A series of new coumarin derived carboxylate ligands and their silver(I) complexes (20) were synthesized, characterized and screened by Creaven et al for their in-vitro antibacterial activity against a range of Gram positive stains and Gram negative as well as for their antifungal activity. While none of the ligands showed any antimicrobial activity, a number of the Ag(I) complexes exhibited potent activity.…”
Section: Antimicrobal Activitymentioning
confidence: 99%
“…The 4-arylamino-3-nitrocoumarins were evaluated for their antibacterial and antifungal activities against pathogenic strains S. aureus, B. cereus, B. subtilis, E. coli, Klebsiella pneumoniae, Salmonella enterica and yeast C. albicans and A. niger. Compound (11) was found greatest anticandidal as compared to other compounds and Tetracycline and Nystatine were used as the reference drugs (Dekic et al, 2011). A series of 3-cynnamoyl-4hydroxycoumarins (12) were tested on bacteria P. aeruginosa, E. coli, Salmonella typhimurium, Bordatella bronchiseptica, B. subtilis and S. aureus.…”
Section: Antimicrobial Activitiesmentioning
confidence: 99%
“…Varying the types of substitution and substituent identity led to different conformations of the molecules that had a profound impact on their biological activity [10]. We have previously synthesized a number of coumarin derivatives with significant antimicrobial and/or antioxidant activities [5,[11][12][13].…”
Section: Commentmentioning
confidence: 99%