Two new steroids with cytotoxicity from the marine sponge Dactylospongia elegans collected from the South China Sea

Autor: Hou-Wen Lin, Zhuo Wang, Wei-Hua Jiao, Fan Yang, Jing Li, Shi-Hai Xu
Rok vydání: 2018
Předmět:
Zdroj: Natural Product Research. 33:1340-1344
ISSN: 1478-6427
1478-6419
DOI: 10.1080/14786419.2018.1475385
Popis: A new steroid, (3S,5R,9R,10S,13R,17R,20R,24S,22E)-ergosta-6,8,22-triene-3,25-diol (1), and its sulfonated analogue (2) together with a known one, 5α,8α-epidioxy-cholest-6-en-3β-ol (3) were isolated from the marine sponge Dactylospongia elegans collected from the South China Sea. The new structures including absolute configurations were established by the HRESIMS and 1D and 2D NMR analysis coupled with the X-ray crystal analysis. Both of 1 and 2 exhibited cytotoxicity against cancer cell line MCF-7 with IC50 values of 9.7 and 8.5 μM, respectively.
Databáze: OpenAIRE