Salicylanilide carbamates: Antitubercular agents active against multidrug-resistant Mycobacterium tuberculosis strains
作者:Juana M. Férriz、Kateřina Vávrová、Filip Kunc、Aleš Imramovský、Jiřina Stolaříková、Eva Vavříková、Jarmila Vinšová
DOI:10.1016/j.bmc.2009.12.055
日期:2010.2
A series of 27 salicylanilide-based carbamates was prepared as a part of our ongoing search for new antituberculosis drugs. These compounds exhibited very good in vitro activity against Mycobacterium tuberculosis, Mycobacterium kansasii and Mycobacterium avium and, in particular, against five multidrug-resistant strains, with MIC values between 0.5–2 μmol/L. Moreover, they displayed moderate toxicity
A series of photosynthetic electron transport (PET) inhibitors from the group of salicylanilide alkylcarbamates was investigated. The compounds were analyzed using RP-HPLC to determine lipophilicity, and their PET inhibition was determined in spinach (Spinacia oleracea L.) chloroplasts. The site of action of the studied compounds is situated at the donor site of photosystem 2 (PS 2). Compounds substituted by chlorine in C'-3 and C'-4 of the aniline ring and the optimal length of the alkyl chain pentyl-heptyl in the carbamate moiety provided the most active PET inhibitors (IC50 inhibition <10 mu mol/L). Disubstitution in C'-3,4 by chlorine caused significant PET inhibiting activity decrease. Nevertheless, for all three series of C'-3, C'-4, C'-3,4 compounds, the dependence of PET activity on lipophilicity showed to be quasi-parabolic. (C) 2011 Elsevier Ltd. All rights reserved.