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Nie J, Guo S, Wang D, Li Z, Zhang D, Li W, Guo DA. Aspongpyridiniums A-J, amino acid-derived pyridinium salts from insect species Aspongopus chinensis. PHYTOCHEMISTRY 2025; 229:114299. [PMID: 39419314 DOI: 10.1016/j.phytochem.2024.114299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2024] [Revised: 10/06/2024] [Accepted: 10/14/2024] [Indexed: 10/19/2024]
Abstract
Aspongpyridiniums A-J (1-10), ten previously undescribed amino acid-derived pyridinium salts were isolated and identified from the n-BuOH fraction of the 50% MeOH extract of insect species Aspongopus chinensis, well-known for its use in traditional Chinese medicine for the treatment of pain, indigestion and kidney diseases. Their structures were determined by extensive spectroscopic data as well as electronic circular dichroism calculations and comparisons. Aspongpyridiniums A-J are structurally characterized by a unique 1,3,4-trisubstituted pyridinium skeleton with a variable functional group derived from an amino acid unit. In bioassays, Compounds 5 and 10 exhibited certain inhibitory activities against α-glucosidase, while 1-10 showed moderate to weak acetylcholinesterase inhibitory effects.
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Affiliation(s)
- Jinchun Nie
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, People's Republic of China; Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan, 528400, People's Republic of China
| | - Shuang Guo
- Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan, 528400, People's Republic of China
| | - Didi Wang
- Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan, 528400, People's Republic of China
| | - Zhenwei Li
- Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan, 528400, People's Republic of China
| | - Daidi Zhang
- Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan, 528400, People's Republic of China
| | - Wei Li
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, People's Republic of China; Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan, 528400, People's Republic of China.
| | - De-An Guo
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, People's Republic of China; Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan, 528400, People's Republic of China.
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Hill RA, Sutherland A. Hot off the Press. Nat Prod Rep 2023; 40:1816-1821. [PMID: 38047462 DOI: 10.1039/d3np90052e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2023]
Abstract
A personal selection of 32 recent papers is presented covering various aspects of current developments in bioorganic chemistry and novel natural products such as alscholarine A from Alstonia scholaris.
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Affiliation(s)
- Robert A Hill
- School of Chemistry, Glasgow University, Glasgow, G12 8QQ, UK.
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