Journal
BIOORGANIC & MEDICINAL CHEMISTRY
Volume 25, Issue 22, Pages 6167-6174Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.bmc.2016.12.038
Keywords
Alkaloids; Anti-TB activity; Carbazoles; Natural products; Tuberculosis
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A series of 49 oxygenated tricyclic carbazole derivatives has been tested for inhibition of the growth of Mycobacterium tuberculosis and a mammalian cell line (vero cells). From this series, twelve carbazoles showed a significant anti-TB activity. The four most active compounds were the naturally occurring carbazole alkaloids clauszoline-M (45), murrayaline-C (41), carbalexin-C (27), and the synthetic carbazole derivative 22 with MIC90 values ranging from 1.5 to 3.7 mu M. The active compounds were virtually non-toxic for the mammalian cell line in the concentration range up to 50 mu M. (C) 2016 Elsevier Ltd. All rights reserved.
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