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A new serratane-type triterpene from Lycopodium phlegmaria
Hao Shi1, Zhen-Yu Li, Yue-Wei Guo
1State Key Laboratory of Drug Research, Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Zhangjiang Hi-tech Park, Shanghai 201203, P R China.
Natural Product Research
|December 2, 2005
Summary
A new compound, lycophlegmarin, was isolated from Lycopodium phlegmaria L. This serratane-type triterpene showed modest growth inhibition against human hepatoma cells in vitro.
Area of Science:
- Natural Product Chemistry
- Pharmacology
- Medicinal Chemistry
Background:
- Lycopodium species are a rich source of bioactive triterpenoids.
- Serratane-type triterpenes represent a class of compounds with diverse biological activities.
- Investigating the chemical constituents of Lycopodium phlegmaria L. may yield novel therapeutic agents.
Purpose of the Study:
- To isolate and characterize new and known triterpenoids from Lycopodium phlegmaria L.
- To determine the chemical structure of the novel compound lycophlegmarin.
- To evaluate the in vitro cytotoxic activity of lycophlegmarin against human hepatoma cells.
Main Methods:
- Isolation of compounds using chromatographic techniques.
- Structure elucidation employing detailed spectroscopic analysis (NMR, MS) and chemical methods.
- In vitro cell-based assays to assess growth inhibition against BEL 7402 cells.
Main Results:
- A new serratane-type triterpene, named lycophlegmarin (1), was successfully isolated.
- Four known related triterpenoids were also identified from the plant extract.
- Lycophlegmarin demonstrated modest in vitro growth-inhibitory activity against human hepatoma BEL 7402 cells.
Conclusions:
- Lycophlegmarin is a novel serratane-type triterpene isolated from Lycopodium phlegmaria L.
- The study contributes to the understanding of the chemical diversity of Lycopodium triterpenoids.
- Lycophlegmarin shows potential as a lead compound for hepatoma treatment, warranting further investigation.