Steroidal saponins from the roots of Smilax sp.: Structure and bioactivity

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• 作者：Victoria L. Challinor^a ; Peter G. Parsons^b ; Sonet Chap^a ; Eve F. White^a ; Joanne T. Blanchfield^a ; Reginald P. Lehmann^c ; James J. De Voss^a ; ^{j.devoss@uq.edu.au}
• 关键词：Smilax ; Bioactivity ; Sarsaparilla ; Saponins ; Sarsaparilloside B ; Sarsaparilloside C
• 刊名：Steroids
• 出版年：2012
• 期刊代码：142_0039128x
• 类别：bio
• 出版时间：April, 2012
• 卷：77
• 期：5
• 页码：504-511
• 文件大小：315 K

摘要

Phytochemical characterization of a commercial herb sample supplied as Smilax ornata Lem. (sarsaparilla) led to the isolation of five steroidal saponins, including two new furostanol saponins sarsaparilloside B (1) and sarsaparilloside C (2), whose structures were elucidated via a combination of multistage mass spectrometry (MSⁿ), 1D and 2D NMR experiments, and chemical degradation. The previously unreported spectroscopic characterization of sarsaparilloside (3), 螖²⁰⁽²²⁾-sarsaparilloside (4), and parillin (5) is also provided. The antiproliferative activity of the isolated saponins was compared in six human cell lines derived from different tumor types and one of the structures (2) was particularly active against the HT29 colon tumor cell line.