Molecules 2012, 17(9), 11146-11155; doi:10.3390/molecules170911146
Article

Antitrypanosomal Alkaloids from the Marine Bacterium Bacillus pumilus

Received: 18 July 2012; in revised form: 6 September 2012 / Accepted: 7 September 2012 / Published: 18 September 2012
(This article belongs to the Section Natural Products)
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: 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 15 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 15 were found to be inactive when tested against Plasmodium falciparum and Leishmania donovani, therefore showing selectivity against T. cruzi parasites.
Keywords: indole alkaloids; Trypanosoma cruzi; Bacillus pumilus; Chagas disease
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MDPI and ACS Style

Martínez-Luis, S.; Gómez, J.F.; Spadafora, C.; Guzmán, H.M.; Gutiérrez, M. Antitrypanosomal Alkaloids from the Marine Bacterium Bacillus pumilus. Molecules 2012, 17, 11146-11155.

AMA Style

Martínez-Luis S, Gómez JF, Spadafora C, Guzmán HM, Gutiérrez M. Antitrypanosomal Alkaloids from the Marine Bacterium Bacillus pumilus. Molecules. 2012; 17(9):11146-11155.

Chicago/Turabian Style

Martínez-Luis, Sergio; Gómez, José Félix; Spadafora, Carmenza; Guzmán, Héctor M.; Gutiérrez, Marcelino. 2012. "Antitrypanosomal Alkaloids from the Marine Bacterium Bacillus pumilus." Molecules 17, no. 9: 11146-11155.

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