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Published on: December 8, 2023
Two new C19-diterpenoid alkaloids from Aconitum hemsleyanium var. circinacum
Feng Gao1, Dong-Lin Chen, Feng-Peng Wang
1Department of Chemistry of Medicinal Natural Products, West China College of Pharmacy, Sichuan University, Chengdu, PR China.
Chemical & Pharmaceutical Bulletin
|January 6, 2006
Summary
Two new C19-diterpenoid alkaloids, circinadines A and B, were identified from Aconitum hemsleyanium var. circinacum roots. Their chemical structures were confirmed using advanced spectral analysis techniques.
Area of Science:
- Natural Product Chemistry
- Phytochemistry
- Organic Chemistry
Background:
- Aconitum species are known sources of bioactive alkaloids.
- Aconitum hemsleyanium var. circinacum is a specific botanical source for novel compound discovery.
Purpose of the Study:
- To isolate and characterize new C19-diterpenoid alkaloids from Aconitum hemsleyanium var. circinacum.
- To elucidate the structures of these novel compounds using spectroscopic methods.
Main Methods:
- Isolation of alkaloids from plant roots.
- Structure elucidation using Electrospray Ionization Mass Spectrometry (ESI-MS).
- High-Resolution Electron Ionization Mass Spectrometry (HR-EI-MS) for accurate mass determination.
- 1D and 2D Nuclear Magnetic Resonance (NMR) spectroscopy for detailed structural analysis.
Main Results:
- Two new C19-diterpenoid alkaloids, named circinadines A (1) and B (2), were successfully isolated.
- The structures of circinadines A and B were definitively determined through comprehensive spectral data.
Conclusions:
- The study expands the known chemical diversity of Aconitum alkaloids.
- Circinadines A and B represent novel chemical entities with potential for further pharmacological investigation.
