Ingenamine E and Cyclostellettamines G-K from the new Brazilian species of marine sponge Pachychalina sp

Autor: de Oliveira, J. H. H. L., Grube, Achim, Köck, Matthias, Berlinck, R. G. S., Macedo, M. L., Ferreira, A. G., Hajdu, E., Muricy, G.
Rok vydání: 2004
Předmět:
Zdroj: EPIC3Journal of Natural Products, 67, pp. 1685-1689
Popis: The chemical investigation of the cytotoxic and antituberculosis active MeOH crude extract of the marine sponge Pachychalina sp. led to the isolation of six new nitrogenous metabolites, including ingenamine G (1), as well as a mixture of new cyclostellettamines G, H, I, K, and L (10-14) with the known cyclostellettamines A-F (4-9). Structural assignments of compound 1 were based on the analysis of MS and NMR data, while the structures of compounds 10-14 could be established by HPLC-MS/MS analysis. Ingenamine G displayed cytotoxic activity against HCT-8 (colon), B16 (leukemia), and MCF-7 (breast) cancer cell lines, antibacterial activity against Staphylococcus aureus (ATCC 25923), Escherichia coli (ATCC 25922), and four oxacilin-resistant S. aureus strains, and antimycobacterial activity against Mycobacterium tuberculosis H37Rv.
Databáze: OpenAIRE