Three novel furospirostanol glycosides and a steroidal alkaloid glycoside from the bulbs of <i>Fritillaria camtschatcensis</i> (L.) Ker Gawl., and their cytotoxicity
作者:Tomoki Iguchi、Minpei Kuroda、Hiroshi Takayama、Yoshihiro Mimaki
DOI:10.1080/14786419.2021.1897590
日期:2022.8.3
Abstract Three novel steroidal glycosides (1–3) and a previously described steroidal alkaloid glycoside (4) have been isolated from the bulbs of Fritillaria camtschatcensis (L.) Ker Gawl. (Liliaceae). The structures of novel compounds 1–3 were characterized based on NMR spectroscopy and chemical transformations. Compounds 1–3 are furospirostanol glycosides bearing a (3S)-3-hydroxy-3-methylglutaryl
摘要 从贝母(L.) Ker Gawl的鳞茎中分离出三种新型甾体苷 ( 1-3 )和一种先前描述的甾体生物碱苷 ( 4 )。(百合科)。新型化合物1-3的结构基于 NMR 光谱和化学转化进行了表征。化合物1-3是呋螺甾烷醇糖苷,在糖苷配基的 C-26 处带有 (3 S ) -3-羟基-3-甲基戊二酰基部分。化合物1 – 4评估了它们对 HL-60 人早幼粒细胞白血病细胞、A549 人肺腺癌细胞和 SBC-3 人肺小细胞癌细胞的细胞毒活性。只有4 个对 HL-60、A549 和 SBC-3 细胞显示出中等的细胞毒性,IC 50值分别为 22.9、13.3 和 11.9 µM。发现化合物4在 HL-60 细胞中引起坏死样细胞死亡。