Cytotoxic Grifolin Derivatives Isolated from the Wild Mushroom<i>Boletus pseudocalopus</i>(Basidiomycetes)
作者:Junsik Song、Md. Maniruzzaman Manir、Surk-Sik Moon
DOI:10.1002/cbdv.200800217
日期:2009.9
Activity-guided purification of a MeOH extract of the Korean wild mushroom Boletus pseudocalopus afforded three new grifolin derivatives, 1-3, along with four known phenolic compounds 4-7. Their structures were established by a combination of 1H- and 13C-NMR, NOESY, and extensive two-dimensional NMR spectroscopic experiments such as gCOSY, gHSQC, gHMBC, and ROESY. The major metabolites 4 and 5 were
活性引导纯化韩国野生蘑菇牛肝菌的MeOH提取物,得到了三种新的三叶草紫杉醇衍生物1-3,以及四种已知的酚类化合物4-7。通过1H和13C-NMR,NOESY以及广泛的二维NMR光谱实验(例如gCOSY,gHSQC,gHMBC和ROESY)的组合,确定了它们的结构。对主要代谢物4和5进行还原,以提供侧链还原的化合物8和9进行生物学测试。除化合物6外,所有化合物均对人肺癌A549和小鼠黑素瘤B16F1细胞系显示出IC(50)3.5-11.0 microg / ml范围的抗癌活性。此外,所有化合物均显示出通过DPPH测定法测定的中等自由基清除活性。