
Fractionation of the ethyl acetate extract of the marine bacterium Bacillus pumilus isolated from the black coral Antipathes sp. led to the isolation of five compounds: cyclo-(L-Leu-L-Pro) (1), 3-hydroxyacetylindole (2), N-acetyl-b-oxotryptamine (3), cyclo-(L-Phe-L-Pro) (4), and 3-formylindole (5). The structures of compounds 1−5 were established by spectroscopic analyses, including HRESITOF-MS and NMR (1H, 13C, HSQC, HMBC and COSY). Compounds 2, 3 and 5 caused the inhibition on the growth of Trypanosoma cruzi (T. cruzi), with IC50 values of 20.6, 19.4 and 26.9 μM, respectively, with moderate cytotoxicity against Vero cells. Compounds 1−5 were found to be inactive when tested against Plasmodium falciparum and Leishmania donovani, therefore showing selectivity against T. cruzi parasites.
Chagas disease, <em>Trypanosoma cruzi</em>, Trypanosoma cruzi, Plasmodium falciparum, Organic chemistry, Bacillus, Anthozoa, Trypanocidal Agents, Article, <em>Bacillus</em> <em>pumilus</em>, Cell Line, QD241-441, Alkaloids, Parasitic Sensitivity Tests, indole alkaloids, Chlorocebus aethiops, Animals, Humans, Vero Cells, Bacillus pumilus, Leishmania donovani
Chagas disease, <em>Trypanosoma cruzi</em>, Trypanosoma cruzi, Plasmodium falciparum, Organic chemistry, Bacillus, Anthozoa, Trypanocidal Agents, Article, <em>Bacillus</em> <em>pumilus</em>, Cell Line, QD241-441, Alkaloids, Parasitic Sensitivity Tests, indole alkaloids, Chlorocebus aethiops, Animals, Humans, Vero Cells, Bacillus pumilus, Leishmania donovani
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