[Two new α-carbonylamides from Corydalis Rhizoma]
Yue-Lin Jia1, Ling-Yan Wang2, Xiao-Hong Wei2
1Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital,Beijing University of Chinese Medicine Beijing 100700, China Wuya Innovation College, Shenyang Pharmaceutical University Shenyang 110016, China.
Summary
This study isolated 24 compounds from vinegar-processed Corydalis Rhizoma, including two new rare alkaloids, yanhuoxamide A and B. Their potential acetylcholinesterase (AChE) inhibitory activity was also evaluated.
Area of Science:
- Pharmacognosy and Natural Products Chemistry
- Traditional Chinese Medicine (TCM) Research
- Neuroscience and Enzyme Inhibition Studies
Context:
- Corydalis Rhizoma is a vital traditional Chinese medicine for pain relief.
- Understanding its active compounds is crucial for modern pharmaceutical applications.
- Previous research has not fully elucidated the pharmacodynamic substances responsible for its efficacy.
Purpose:
- To isolate and identify compounds from vinegar-processed Corydalis Rhizoma.
- To characterize novel and known chemical constituents.
- To evaluate the potential of new compounds in inhibiting acetylcholinesterase (AChE).
Summary:
- Twenty-four compounds were isolated and identified from aqueous extracts of vinegar-processed Corydalis Rhizoma using advanced chromatographic and spectroscopic techniques.
- Two rare α-carbonamide alkaloids, yanhuoxamide A and B, were identified as new natural products.
- Fifteen compounds (3-15) were reported from the genus Corydalis for the first time, and nine compounds (16-24) were isolated from Corydalis Rhizoma for the first time.
- Compounds 1 and 2 demonstrated inhibitory activity against acetylcholinesterase (AChE).
Impact:
- Expands the known chemical diversity of Corydalis Rhizoma.
- Provides novel compounds (yanhuoxamide A and B) for further pharmacological investigation.
- Identifies potential therapeutic leads for neurological disorders by evaluating AChE inhibition.
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