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Synthesis and biological evaluation of novel N-substituted 1H-dibenzo[a,c]carbazole derivatives of d

Monday, December 9, 2013  
Posted by: Amanda Young
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Synthesis and biological evaluation of novel N-substituted 1H-dibenzo[a,c]carbazole derivatives of dehydroabietic acid as potential antimicrobial agents

W Gu, C Qiao, SF Wang, Y Hao, TT Miao - Bioorganic & Medicinal Chemistry Letters, 2013

Abstract

A series of new N-substituted 1H-dibenzo[a,c]carbazole derivatives were synthesized from dehydroabietic acid, and their structures were characterized by IR, 1H NMR and HRMS spectral data. All compounds were evaluated for their antibacterial and antifungal activities against four bacteria (Bacillus subtilis, Staphylococcus aureus, Escherichia coli and Pseudomonas fluorescens) and three fungi (Candida albicans, Candida tropicalis and Aspergillus niger) by serial dilution technique. Some of the synthesized compounds displayed pronounced antimicrobial activity against tested strains with low MIC values ranging from 0.9 to 15.6 μg/ml. Among them, compounds 6j and 6r exhibited potent inhibitory activity comparable to reference drugs amikacin and ketoconazole.


... immunosuppressive 22 and neuroprotective activities. 23. Dehydroabietic acid (DHA,1), a natural occurring diterpene resin acid, can be extracted from Pinus rosin or commercial disproportionated rosin. Many derivatives of DHA have ...

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