Four new polyhydroxylated steroids from the South Sea sponge Plakortis sp

Autor: Jing-Fan Sun, Nicole J. de Voogd, Xu-Li Tang, Guo-Qiang Li, Ping-Lin Li, Kun-Ya Wang
Rok vydání: 2020
Předmět:
Zdroj: Chinese journal of natural medicines. 18(11)
ISSN: 1875-5364
Popis: Four new polyhydroxylated steroids plaksterols A-D (1-4), together with two known related steroids ergost-7,9(11),22-trien-3β,5α,6α-triol (5) and ergosta-6β-methoxy-7,22-diene-3β,5α-diol (6), were isolated from methanol extract of the South China Sea marine sponge Plakortis sp. Their structures were identified by spectroscopic analysis, including NMR, MS, and IR. The cytotoxicity of the polyhydroxylated steroids were evaluated, and compound 6 showed moderate inhibitory activities against K562, HL-60 and BEL-7402 cells.
Databáze: OpenAIRE