Bioactive Sulfated Sesterterpene Alkaloids and Sesterterpene Sulfates from the Marine Sponge Fasciospongia sp

Autor: Ghee Teng Tan, Tamara P. Kondratyuk, J. M. Pezzuto, Guangmin Yao, Leng Chee Chang
Rok vydání: 2009
Předmět:
Zdroj: Journal of Natural Products. 72:319-323
ISSN: 1520-6025
0163-3864
DOI: 10.1021/np8005343
Popis: Two new sulfated sesterterpene alkaloids, 19-oxofasciospongine A (3) and fasciospongine C (4), and a new sesterterpene sulfate, 25-hydroxyhalisulfate 9 (5), along with two known sesterterpene sulfates, halisulfates 7 (6) and 9 (7), were isolated from an organic extract of the marine sponge Fasciospongia sp. The structures of the new compounds were established on the basis of one- and two-dimensional NMR spectroscopic studies as well as by HRESIMS analysis. Compounds 1-7 exhibited inhibitory activity against Streptomyces 85E in the hyphae-formation inhibition assay. Compounds 1, 2, and 4-7 were not cytotoxic when tested at 20 microg/mL with MCF-7, LNCaP, and LU cell lines. Only compound 3 demonstrated a moderate cytotoxic effect on the MCF-7 (IC(50) 13.4 microM), LNCaP (IC(50) 21.8 microM), and LU-1 cells (IC(50) 5.0 microM), respectively.
Databáze: OpenAIRE