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Zhang N, Xu Y, Yue X, Xiong L, Li H, Chen L. Isolation, characterization and anti-inflammatory effect of alkaloids from the roots of Stemona tuberosa Lour. Phytochemistry 2024; 220:114013. [PMID: 38331134 DOI: 10.1016/j.phytochem.2024.114013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 02/03/2024] [Accepted: 02/05/2024] [Indexed: 02/10/2024]
Abstract
Six undescribed alkaloids, neotuberostemonol C (1), dehydrostenines C-D (2-3), tuberostemonines Q-R (10-11), and (6R,8R,8aR)-8-hydroxy-6-methyl-hexahydroindolizin-5-one (32), along with twenty-six known analogues were isolated from the dried roots of Stemona tuberosa Lour. The structures and absolute stereochemistry of these compounds were delineated by extensive spectroscopy (1D NMR, 2D NMR, HRESIMS), quantum chemical calculations of the electronic circular dichroism spectra, and pyridine-induced solvent shifts. Tuberostemonines Q-R (10-11) represent tuberostemonine skeleton alkaloids possessing an α-methyl-γ-butyrolactone moiety attached to C-3. In addition, all these isolated compounds were assayed for their inhibitory activity against LPS-induced NO production in RAW264.7 cells using Griess assay.
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Affiliation(s)
- Na Zhang
- Wuya College of Innovation, Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Yang Xu
- Wuya College of Innovation, Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Xinyi Yue
- Wuya College of Innovation, Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Liangliang Xiong
- Wuya College of Innovation, Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Hua Li
- Wuya College of Innovation, Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang, 110016, China; Institute of Structural Pharmacology & TCM Chemical Biology, College of Pharmacy, Fujian University of Traditional Chinese Medicine, Fuzhou, 350122, China.
| | - Lixia Chen
- Wuya College of Innovation, Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang, 110016, China.
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