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Related Experiment Video

Updated: Jun 23, 2026

Applications of Liquid-Chromatography Tandem Mass Spectrometry in Natural Products Research: Tropane Alkaloids as a Case Study
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Applications of Liquid-Chromatography Tandem Mass Spectrometry in Natural Products Research: Tropane Alkaloids as a Case Study

Published on: March 8, 2024

Alkaloids from Lindera aggregata.

Li-She Gan1, Wei Yao, Jian-Xia Mo

  • 1Institute of Modern Chinese Medicine, College of Pharmaceutical Sciences, Zhejiang University, 388 Yuhangtang Rd., Hangzhou, P. R. China.

Natural Product Communications
|April 18, 2009
PubMed
Summary
This summary is machine-generated.

Researchers isolated eight alkaloids from Lindera aggregata roots, including a new compound. (+)-norboldine showed weak cytotoxicity against L1210 tumor cells, indicating potential for further study.

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Area of Science:

  • Natural Product Chemistry
  • Pharmacognosy
  • Organic Chemistry

Background:

  • Lindera aggregata is a plant species known for its diverse secondary metabolites.
  • Alkaloids are a significant class of natural products with a wide range of biological activities.
  • Previous research has identified various compounds from Lindera species, but comprehensive analysis of L. aggregata roots is ongoing.

Purpose of the Study:

  • To isolate and characterize alkaloid compounds from the roots of Lindera aggregata.
  • To elucidate the structures of isolated alkaloids using advanced spectroscopic techniques.
  • To evaluate the cytotoxic potential of the isolated alkaloids against specific tumor cell lines.

Main Methods:

  • Extraction and isolation of alkaloids from Lindera aggregata root material.
  • Structure elucidation using comprehensive spectroscopic methods, including 1D and 2D Nuclear Magnetic Resonance (NMR) techniques.
  • Cytotoxicity assays using L1210 and K562 tumor cell lines.

Main Results:

  • Eight alkaloids were isolated, including a novel compound, (+)-norboldine acetate (1), and seven known alkaloids.
  • Full NMR assignments were achieved for (+)-norboldine (2), (+)-laurotetanine (4), and (+)-N-methyllaurotetanine (5).
  • (+)-norboldine (2) exhibited weak cytotoxic activity against the L1210 tumor cell line.

Conclusions:

  • The study successfully identified and characterized eight alkaloids from Lindera aggregata roots, expanding the knowledge of its chemical constituents.
  • (+)-norboldine (2) demonstrated preliminary cytotoxic activity, suggesting it as a lead compound for further investigation.
  • The detailed NMR analysis provides valuable data for the characterization of these alkaloid structures.