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Three new alkaloids from Menispermum dauricum
Long Chen1, Lu-Lu Li1, Yan Cheng1
1State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China.
Journal of Asian Natural Products Research
|May 1, 2020
Summary
Three new alkaloids were discovered in Menispermum dauricum rhizomes. Their chemical structures and configurations were determined using advanced spectroscopic methods like NMR and ECD.
Area of Science:
- Natural Product Chemistry
- Phytochemistry
- Organic Chemistry
Background:
- Menispermum dauricum is a plant species known for its potential medicinal properties.
- The isolation of novel compounds from plant sources is crucial for drug discovery and understanding chemical diversity.
Purpose of the Study:
- To identify and characterize new chemical constituents from the rhizomes of Menispermum dauricum.
- To elucidate the structures and stereochemistry of these novel alkaloids.
Main Methods:
- Extraction and isolation of alkaloids from Menispermum dauricum rhizomes.
- Comprehensive spectroscopic analyses, including 1D Nuclear Magnetic Resonance (NMR), 2D NMR, and Electronic Circular Dichroism (ECD).
Main Results:
- Three previously undescribed alkaloids, designated compounds 1-3, were successfully isolated.
- The detailed structures and absolute configurations of these new alkaloids were rigorously established through extensive spectroscopic data interpretation.
Conclusions:
- The study expands the knowledge of Menispermum dauricum's chemical profile by identifying novel alkaloids.
- The findings contribute to the understanding of alkaloid biosynthesis and stereochemistry in this plant genus.
