1
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Jian XX, Tang P, Liu XY, Chao RB, Wang FP. Multi-conformers caused by conformational change of A-ring in the C 18- and C 19- N-dealkyl diterpenoid alkaloids. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2023; 25:819-833. [PMID: 36632044 DOI: 10.1080/10286020.2022.2164711] [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: 10/13/2022] [Revised: 12/29/2022] [Accepted: 12/30/2022] [Indexed: 06/17/2023]
Abstract
This paper describes a rare phenomenon of multi-conformers caused by conformational change of A-ring in the C18- and C19- N-dealkyl diterpenoid alkaloids. The possible reasons for the generation of multiple conformational isomers are complex, which could be affected by the substituents at C-1, C-3, C-13, C-14, and C-15, pH, solvents, the intramolecular hydrogen bond between 1α-OCH3/1α-OH and N-H groups, acid-base treatment, preparation methods, and work-up procedures.
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Affiliation(s)
- Xi-Xian Jian
- Department of Chemistry of Medicinal Natural Products, West China College of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Pei Tang
- Department of Chemistry of Medicinal Natural Products, West China College of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Xiao-Yu Liu
- Department of Chemistry of Medicinal Natural Products, West China College of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Ruo-Bing Chao
- Department of Chemistry of Medicinal Natural Products, West China College of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Feng-Peng Wang
- Department of Chemistry of Medicinal Natural Products, West China College of Pharmacy, Sichuan University, Chengdu 610041, China
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2
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Yu Y, Yao C, Wei W, Li H, Huang Y, Yao S, Qu H, Chen Q, Mei Q, Wu W, Guo DA. Integration of offline two-dimensional chromatography and mass defect filtering-based precursor ion list data acquisition for targeted characterization of diterpenoid alkaloids in the lateral roots of Aconitum carmichaelii. J Chromatogr A 2022; 1684:463554. [DOI: 10.1016/j.chroma.2022.463554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 09/26/2022] [Accepted: 10/05/2022] [Indexed: 10/31/2022]
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3
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Wang L, Marner M, Mettal U, Liu Y, Schäberle TF. Seven New Alkaloids Isolated from Marine Flavobacterium Tenacibaculum discolor sv11. Mar Drugs 2022; 20:md20100620. [PMID: 36286444 PMCID: PMC9605681 DOI: 10.3390/md20100620] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Revised: 09/27/2022] [Accepted: 09/28/2022] [Indexed: 11/16/2022] Open
Abstract
Marine flavobacterium Tenacibaculum discolor sv11 has been proven to be a promising producer of bioactive nitrogen-containing heterocycles. A chemical investigation of T. discolor sv11 revealed seven new heterocycles, including the six new imidazolium-containing alkaloids discolins C-H (1−6) and one pyridinium-containing alkaloid dispyridine A (7). The molecular structure of each compound was elucidated by analysis of NMR and HR-ESI-MS data. Furthermore, enzymatic decarboxylation of tryptophan and tyrosine to tryptamine and tyramine catalyzed by the decarboxylase DisA was investigated using in vivo and in vitro experiments. The antimicrobial activity of the isolated compounds (1−7) was evaluated. Discolin C and E (1 and 3) exhibited moderate activity against Gram-positive Bacillus subtilis DSM10, Mycobacterium smegmatis ATCC607, Listeria monocytogenes DSM20600 and Staphylococcus aureus ATCC25923, with MIC values ranging from 4 μg/mL to 32 μg/mL.
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Affiliation(s)
- Lei Wang
- Institute for Insect Biotechnology, Justus-Liebig-University Giessen, 35392 Giessen, Germany
- Fraunhofer Institute for Molecular Biology and Applied Ecology (IME), Branch for Bioresources, 35392 Giessen, Germany
| | - Michael Marner
- Fraunhofer Institute for Molecular Biology and Applied Ecology (IME), Branch for Bioresources, 35392 Giessen, Germany
| | - Ute Mettal
- Institute for Insect Biotechnology, Justus-Liebig-University Giessen, 35392 Giessen, Germany
- Fraunhofer Institute for Molecular Biology and Applied Ecology (IME), Branch for Bioresources, 35392 Giessen, Germany
| | - Yang Liu
- Institute for Insect Biotechnology, Justus-Liebig-University Giessen, 35392 Giessen, Germany
- Fraunhofer Institute for Molecular Biology and Applied Ecology (IME), Branch for Bioresources, 35392 Giessen, Germany
- Correspondence: (Y.L.); (T.F.S.); Tel.: +49-(0)641-97219-140 (T.F.S.)
| | - Till F. Schäberle
- Institute for Insect Biotechnology, Justus-Liebig-University Giessen, 35392 Giessen, Germany
- Fraunhofer Institute for Molecular Biology and Applied Ecology (IME), Branch for Bioresources, 35392 Giessen, Germany
- German Center for Infection Research (DZIF), Partner Site Giessen-Marburg-Langen, 35392 Giessen, Germany
- Correspondence: (Y.L.); (T.F.S.); Tel.: +49-(0)641-97219-140 (T.F.S.)
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4
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Liu XY, Ke BW, Qin Y, Wang FP. The diterpenoid alkaloids. THE ALKALOIDS. CHEMISTRY AND BIOLOGY 2022; 87:1-360. [PMID: 35168778 DOI: 10.1016/bs.alkal.2021.08.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
The diterpenoid alkaloids are a family of extremely important natural products that have long been a research hotspot due to their myriad of intricate structures and diverse biological properties. This chapter systematically summarizes the past 11 years (2009-2019) of studies on the diterpenoid alkaloids, including the "so-called" atypical ones, covering the classification and biogenetic relationships, phytochemistry together with 444 new alkaloids covering 32 novel skeletons and the corrected structures, chemical reactions including conversion toward toxoids, synthetic studies, as well as biological activities. It should be noted that the synthetic studies, especially the total syntheses of various diterpenoid alkaloids, are for the first time reviewed in this treatise. This chapter, in combination with our four previous reviews in volumes 42, 59, 67, and 69, will present to the readers a more completed and updated profile of the diterpenoid alkaloids.
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Affiliation(s)
- Xiao-Yu Liu
- Department of Chemistry of Medicinal Natural Products, West China School of Pharmacy, Sichuan University, Chengdu, China; Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, China
| | - Bo-Wen Ke
- West China Hospital, Sichuan University, Chengdu, China
| | - Yong Qin
- Department of Chemistry of Medicinal Natural Products, West China School of Pharmacy, Sichuan University, Chengdu, China; Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, China.
| | - Feng-Peng Wang
- Department of Chemistry of Medicinal Natural Products, West China School of Pharmacy, Sichuan University, Chengdu, China.
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5
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Yan Y, Li X, Wang Z, Yang X, Yin T. C 18-diterpenoid alkaloids in tribe Delphineae (Ranunculaceae): phytochemistry, chemotaxonomy, and bioactivities. RSC Adv 2021; 12:395-405. [PMID: 35424499 PMCID: PMC8978619 DOI: 10.1039/d1ra08132b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Accepted: 12/15/2021] [Indexed: 12/14/2022] Open
Abstract
This review systematically summarizes the C18-diterpenoid alkaloid (DA) compositions isolated from the genera Aconitum and Delphinium in the Delphineae tribe (Ranunculaceae). A total of 117 distinct C18-DA components have been reported, including 58 lappaconitine-type DAs, 54 ranaconitine-type DAs, and five rearranged-type DAs. These components mainly originated from plants from the subgenus Lycoctonum in the genus Aconitum or less frequently from plants within the genus Delphinium. Natural C18-DAs have exhibited a wide range of bioactivities, including analgesic, antiarrhythmic, anti-inflammatory, anti-tumor, and insecticidal activities, which are closely related to their chemical structures. The high chemical and biological diversities among the reported C18-DA constituents in Delphineae plants indicated their potential as a vast resource for drug discovery. Additionally, the Delphineae plant C18-DAs exhibited chemotaxonomic values and showed a high regularity of distribution at different taxonomic levels; therefore, the Delphineae plant C18-DAs can serve as good chemical molecular markers in the taxonomic treatment of plants within this tribe, especially in the infrageneric division.
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Affiliation(s)
- Yuanfeng Yan
- Zhuhai Key Laboratory of Fundamental and Applied Research in Traditional Chinese Medicine, Zhuhai Campus of Zunyi Medical University Zhuhai 519041 China
| | - Xing Li
- Zhuhai Key Laboratory of Fundamental and Applied Research in Traditional Chinese Medicine, Zhuhai Campus of Zunyi Medical University Zhuhai 519041 China
| | - Ze Wang
- Zhuhai Key Laboratory of Fundamental and Applied Research in Traditional Chinese Medicine, Zhuhai Campus of Zunyi Medical University Zhuhai 519041 China
| | - Xiaoyan Yang
- Zhuhai Key Laboratory of Fundamental and Applied Research in Traditional Chinese Medicine, Zhuhai Campus of Zunyi Medical University Zhuhai 519041 China
| | - Tianpeng Yin
- Zhuhai Key Laboratory of Fundamental and Applied Research in Traditional Chinese Medicine, Zhuhai Campus of Zunyi Medical University Zhuhai 519041 China
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6
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Yin T, Zhang H, Zhang W, Jiang Z. Chemistry and biological activities of hetisine-type diterpenoid alkaloids. RSC Adv 2021; 11:36023-36033. [PMID: 35492752 PMCID: PMC9043348 DOI: 10.1039/d1ra07173d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Accepted: 10/17/2021] [Indexed: 12/12/2022] Open
Abstract
Hetisine-type C20-diterpenoid alkaloids (DAs) are one of the most important DA subtypes. During the past decades, a total of 157 hetisine-type DAs were obtained from plants from seven genera in three families, most of which were isolated from the genera Aconitum and Delphinium in the Ranunculaceae family. Structurally, hetisine-type DAs are characterized by a heptacyclic hetisane skeleton formed by the linkage of C(14)-C(20) and N-C(6) bonds in an atisine-type DA, and their structural diversity is created by the states of the N atom and various substituents. Pharmacological studies have revealed a wide range of pharmacological actions for hetisine-type DAs, including antiarrhythmic, antitumor, antimicrobial and insecticidal activities, as well as effects on peripheral vasculature, which are closely related to their chemical structures. In particular, the prominent antiarrhythmic effects and low toxicity of hetisine-type DAs highlight their potential in antiarrhythmic drug discovery. Hetisine-type DAs with diverse bioactivities are promising lead structures for further development as commercial agents in medicine.
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Affiliation(s)
- Tianpeng Yin
- State Key Laboratory of Quality Research in Chinese Medicines, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology Taipa Macau 999078 China
- Department of Bioengineering, Zunyi Medical University Zhuhai Campus Zhuhai 519041 China
| | - Huixia Zhang
- State Key Laboratory of Quality Research in Chinese Medicines, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology Taipa Macau 999078 China
| | - Wei Zhang
- State Key Laboratory of Quality Research in Chinese Medicines, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology Taipa Macau 999078 China
| | - Zhihong Jiang
- State Key Laboratory of Quality Research in Chinese Medicines, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology Taipa Macau 999078 China
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7
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Yu Y, Wu S, Zhang J, Li J, Yao C, Wu W, Wang Y, Ji H, Wei W, Gao M, Li Y, Yao S, Huang Y, Bi Q, Qu H, Guo DA. Structurally diverse diterpenoid alkaloids from the lateral roots of Aconitum carmichaelii Debx. and their anti-tumor activities based on in vitro systematic evaluation and network pharmacology analysis. RSC Adv 2021; 11:26594-26606. [PMID: 35480028 PMCID: PMC9037614 DOI: 10.1039/d1ra04223h] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 07/27/2021] [Indexed: 12/25/2022] Open
Abstract
Thirty-seven diterpenoid alkaloids (DAs) with diverse structures were isolated and identified from the lateral roots of Aconitum carmichaelii Debx., comprising eight C20-DAs and twenty-nine C19-DAs. Besides the 31 known DAs identified by comparing the 1H NMR and 13C NMR data with those reported in the literature, the structures of four new compounds (1, 14, 17, and 25), and two other compounds (26 and 37) which were reported to be synthesized previously, were also elucidated based on the comprehensive analysis of their HR-ESI-MS, 1D and 2D NMR spectra, including 1H-1H COSY, HSQC and HMBC and NOESY/ROESY. Among them, compound 1 represents the first example of a C20-DA glucoside. Besides, the anti-tumor activities of all the isolated compounds against human non-small-cell lung cancer A549 and H460 cells were systematically evaluated by MTT methods. The results revealed that all of the C19-DAs possessed moderate activities against both of the two cell lines with IC50 values ranging from 7.97 to 28.42 μM, and their structure-activity relationships indicated the active sites of C-8, C-10, and C-14 positions and the nitrogen atom in the C19-DA skeleton. In addition, all of the isolated DAs, with chemical structures confirmed, were further applied for network pharmacology analysis, in order to give an insight into the possible mechanisms of their anti-tumor activities. As a result, 173 potential targets and three most important pathways related to non-small-cell lung carcinoma were finally unearthed.
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Affiliation(s)
- Yang Yu
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Laboratory for TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences Shanghai 201203 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Shifei Wu
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Laboratory for TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences Shanghai 201203 China
| | - Jianqing Zhang
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Laboratory for TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences Shanghai 201203 China
| | - Jiayuan Li
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Laboratory for TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences Shanghai 201203 China
| | - Changliang Yao
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Laboratory for TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences Shanghai 201203 China
| | - Wenyong Wu
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Laboratory for TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences Shanghai 201203 China
- School of Chinese Materia Medica, Nanjing University of Chinese Medicine Nanjing 210023 China
| | - Yingying Wang
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Laboratory for TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences Shanghai 201203 China
- School of Chinese Materia Medica, Nanjing University of Chinese Medicine Nanjing 210023 China
| | - Hongjian Ji
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Laboratory for TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences Shanghai 201203 China
- School of Chinese Materia Medica, Nanjing University of Chinese Medicine Nanjing 210023 China
| | - Wenlong Wei
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Laboratory for TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences Shanghai 201203 China
| | - Min Gao
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Laboratory for TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences Shanghai 201203 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Yun Li
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Laboratory for TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences Shanghai 201203 China
- School of Traditional Chinese Pharmacy, China Pharmaceutical University Nanjing 210009 China
| | - Shuai Yao
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Laboratory for TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences Shanghai 201203 China
| | - Yong Huang
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Laboratory for TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences Shanghai 201203 China
| | - Qirui Bi
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Laboratory for TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences Shanghai 201203 China
| | - Hua Qu
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Laboratory for TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences Shanghai 201203 China
- School of Chinese Materia Medica, Nanjing University of Chinese Medicine Nanjing 210023 China
| | - De-An Guo
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Laboratory for TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences Shanghai 201203 China
- University of Chinese Academy of Sciences Beijing 100049 China
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8
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Liu H, Shao S, Xia H, Wu YZ, Zhu CG, Xu CB, Zhang TT, Guo QL, Shi JG. Denudatine-type diterpenoid alkaloids from an aqueous extract of the lateral root of Aconitum carmichaelii. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2021; 23:615-626. [PMID: 34080502 DOI: 10.1080/10286020.2021.1931141] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 05/13/2021] [Accepted: 05/13/2021] [Indexed: 06/12/2023]
Abstract
Five new denudatine-type diterpenoid alkaloids (1-5), along with the known analogue aconicarmine (6), were isolated from an aqueous decoction of the lateral roots of Aconitum carmichaelii (fu-zi). Their structures were determined by spectroscopic data analysis and electronic circular dichroism (ECD) calculations. Compound 5 is the first denudatine-type diterpenoid alcohol iminium alkaloid, which could be partially transformed into the aza acetal form in pyridine-d5. Compound 5 inhibited mice writhing in an acetic acid-induced writhing assay.
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Affiliation(s)
- Hui Liu
- State 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
| | - Shuai Shao
- State 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
| | - Huan Xia
- State 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
| | - Yu-Zhuo Wu
- State 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
| | - Cheng-Gen Zhu
- State 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
| | - Cheng-Bo Xu
- State 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
| | - Tian-Tai Zhang
- State 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
| | - Qing-Lan Guo
- State 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
| | - Jian-Gong Shi
- State 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
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9
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Shi Y, Zhao Y, Qian J, Dong Z, Wen G, Zhao D, Kennelly EJ. Aconitum Diterpenoid Alkaloid Profiling to Distinguish between the Official Traditional Chinese Medicine (TCM) Fuzi and Adulterant Species Using LC-qToF-MS with Chemometrics. JOURNAL OF NATURAL PRODUCTS 2021; 84:570-587. [PMID: 33496169 DOI: 10.1021/acs.jnatprod.0c00851] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The lateral roots of Aconitum carmichaelii, known in Chinese as fuzi, are officially recognized as a materia medica in the Chinese Pharmacopoeia and used culinarily to prepare herbal soups. A strategy combining UPLC-qToF-MS analysis of A. carmichaelii and its intraspecies and interspecies chemometrics study was developed to examine the distribution of Aconitum marker metabolites. Four diterpenoid alkaloids were recognized to be important markers in fuzi, and another 15 markers were identified to differentiate A. carmichaelii from adulterant species. The detected fuzi markers, mesaconitine (47) and hypaconitine (51), are known to be the principal toxins in this herb, while fuziline (6) and benzoylmesaconine (25) are associated with its medicinal properties. Additional marker compounds have been detected in other Aconitum species that are useful for identifying adulteration. This study provides a useful resource for detecting traditional Chinese medicine (TCM) adulterants and assisting in the quality control of botanical products in TCM and beyond.
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Affiliation(s)
- Yana Shi
- College of Agriculture and Biotechnology, Yunnan Agricultural University, Kunming 650201, People's Republic of China
- Institute of Medicinal Plants, Yunnan Academy of Agricultural Sciences, Kunming 650201, People's Republic of China
| | - Yi Zhao
- Department of Biological Sciences, Lehman College, City University of New York, 250 Bedford Park Boulevard West, Bronx, New York 10468, United States
- Ph.D. Program in Biology, The Graduate Center, City University of New York, 365 Fifth Avenue, New York, New York 10016, United States
| | - Junxiang Qian
- Institute of Medicinal Plants, Yunnan Academy of Agricultural Sciences, Kunming 650201, People's Republic of China
| | - Zhiyuan Dong
- Institute of Medicinal Plants, Yunnan Academy of Agricultural Sciences, Kunming 650201, People's Republic of China
| | - Guosong Wen
- College of Agriculture and Biotechnology, Yunnan Agricultural University, Kunming 650201, People's Republic of China
| | - Dake Zhao
- Biocontrol Engineering Research Center of Crop Disease and Pest, Yunnan University, Kunming 650405, People's Republic of China
- School of Ecology and Environmental Science, Yunnan University, Kunming 650405, People's Republic of China
| | - Edward J Kennelly
- Department of Biological Sciences, Lehman College, City University of New York, 250 Bedford Park Boulevard West, Bronx, New York 10468, United States
- Ph.D. Programs in Biochemistry, Biology, and Chemistry, The Graduate Center, City University of New York, 365 Fifth Avenue, New York, New York 10016, United States
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10
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Zeng Z, Qasem AMA, Woodman TJ, Rowan MG, Blagbrough IS. Impacts of Steric Compression, Protonation, and Intramolecular Hydrogen Bonding on the 15N NMR Spectroscopy of Norditerpenoid Alkaloids and Their Piperidine-Ring Analogues. ACS OMEGA 2020; 5:14116-14122. [PMID: 32566879 PMCID: PMC7301575 DOI: 10.1021/acsomega.0c01648] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Accepted: 05/22/2020] [Indexed: 05/27/2023]
Abstract
1H-15N HMBC spectra of norditerpenoid alkaloids and their synthetic azabicyclic analogues were obtained to investigate the impacts of the through-space effect of steric compression, protonation, and formation of intramolecular hydrogen bonding on the 15N NMR spectroscopy of these natural products and their piperidine-containing analogues. A rare 15N NMR effect of steric compression is demonstrated in half-cage A/E-rings of norditerpenoid alkaloid free bases and their synthetic azabicyclic analogues, in which the distribution of the lone pair of electrons of the tertiary amine N-atom is sterically restricted by bridged cycloalkanes, e.g., cyclopentane, cyclohexane, and cycloheptane rings. This results in significant changes in the 15N chemical shift, typically by at least ∼10 ppm. The lone pair of electrons of the N-atom in the piperidine ring are sterically compressed whether the bridged cyclohexane ring adopts a chair or boat conformation. The 15N chemical shifts of 1α-OMe norditerpenoid alkaloid free bases significantly increase (ΔδN ≥ 15.6 ppm) on alkaloid protonation and thence the formation of an intramolecular hydrogen bond between N +-H and 1α-OMe. The intramolecular hydrogen bonds between the N-atom and 1α-OH of 1α-OH norditerpenoid alkaloid free bases, karacoline, condelphine, and neoline stabilize their A-rings, adopting an unusual twisted-boat conformation, and they also significantly increase δN of the tertiary amine N-atom.
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Affiliation(s)
- Ziyu Zeng
- Department of Pharmacy and
Pharmacology, University of Bath, Bath BA2 7AY, U.K.
| | - Ashraf M. A. Qasem
- Department of Pharmacy and
Pharmacology, University of Bath, Bath BA2 7AY, U.K.
| | - Timothy J. Woodman
- Department of Pharmacy and
Pharmacology, University of Bath, Bath BA2 7AY, U.K.
| | - Michael G. Rowan
- Department of Pharmacy and
Pharmacology, University of Bath, Bath BA2 7AY, U.K.
| | - Ian S. Blagbrough
- Department of Pharmacy and
Pharmacology, University of Bath, Bath BA2 7AY, U.K.
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11
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Ye Q, Liu H, Fang C, Liu Y, Liu X, Liu J, Zhang C, Zhang T, Peng C, Guo L. Cardiotoxicity evaluation and comparison of diterpene alkaloids on zebrafish. Drug Chem Toxicol 2019; 44:294-301. [PMID: 30895830 DOI: 10.1080/01480545.2019.1586916] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Diterpene alkaloids (DAs) have a broad spectrum of pharmacological activities, but exhibiting extremely serious cardiotoxicity to induce arrhythmia, heart arrest, even death. This study aimed to evaluate the cardiotoxicity of three diester diterpene alkaloids (DDAs) including aconitine (AC), mesaconitine (MAC), hypaconitine (HAC) and three monoester diterpene alkaloids (MDAs) including 14-α-benzoylaconine (BAC), 14-α-benzoylmesaconine (BMAC), 14-α-benzoylhypaconine (BHAC) on zebrafish. Firstly, the zebrafish embryos after a 72-hour post fertilization were treated with different doses of AC, MAC, HAC, and BAC, BMAC and BHAC for 2, 10 and 24 h, respectively. The heart rates of the treated embryos were calculated and the morphological images of body, together with heart fluorescence were obtained. Results demonstrated that AC, MAC, and HAC at low doses (15.6 and 31.3 μM) decreased the heart rates and increased them at high doses (62.5, 125, and 250 μM), while BAC, BMAC, and BHAC decreased the heart rates in the dose range of 31.3-250 μM, but the highest dose (500 μM) of BAC and BMAC increased the heart rates. In addition, AC, MAC, and HAC exhibited serious organic and functional toxicities, while BAC, BMAC, and BHAC did not. It could be induced that DDAs expressed stronger cardiotoxicities than MDAs, which might be due to that they were known as the Na+ channel activators and K+ channel inhibitors, respectively. The β-acetate at C-8 position, along with the protonated nitrogen on ring A of their chemical structures contributed more for their different cardiotoxicities. This is the first study on cardiotoxicity comparison of DAs, providing references for the rational and safe application of these compounds and some plant species containing them to reduce side effects while retaining therapeutic efficacy.
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Affiliation(s)
- Qiang Ye
- The Ministry of Education, Key Laboratory of standardization of Chinese herbal medicine, College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,The Breeding Base of State Key Laboratory of resources systems research and development, Utilization of Chinese Herbal Medicines Constructed by The Ministry of Science and Technology of the PRC, College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Hongmei Liu
- The Ministry of Education, Key Laboratory of standardization of Chinese herbal medicine, College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,The Breeding Base of State Key Laboratory of resources systems research and development, Utilization of Chinese Herbal Medicines Constructed by The Ministry of Science and Technology of the PRC, College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Chengxin Fang
- The Ministry of Education, Key Laboratory of standardization of Chinese herbal medicine, College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,The Breeding Base of State Key Laboratory of resources systems research and development, Utilization of Chinese Herbal Medicines Constructed by The Ministry of Science and Technology of the PRC, College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yushi Liu
- The Ministry of Education, Key Laboratory of standardization of Chinese herbal medicine, College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,The Breeding Base of State Key Laboratory of resources systems research and development, Utilization of Chinese Herbal Medicines Constructed by The Ministry of Science and Technology of the PRC, College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Xiaomei Liu
- The Ministry of Education, Key Laboratory of standardization of Chinese herbal medicine, College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,The Breeding Base of State Key Laboratory of resources systems research and development, Utilization of Chinese Herbal Medicines Constructed by The Ministry of Science and Technology of the PRC, College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Juanru Liu
- The Ministry of Education, Key Laboratory of standardization of Chinese herbal medicine, College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,The Breeding Base of State Key Laboratory of resources systems research and development, Utilization of Chinese Herbal Medicines Constructed by The Ministry of Science and Technology of the PRC, College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Cunyan Zhang
- The Ministry of Education, Key Laboratory of standardization of Chinese herbal medicine, College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,The Breeding Base of State Key Laboratory of resources systems research and development, Utilization of Chinese Herbal Medicines Constructed by The Ministry of Science and Technology of the PRC, College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Tingmo Zhang
- The Ministry of Education, Key Laboratory of standardization of Chinese herbal medicine, College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,The Breeding Base of State Key Laboratory of resources systems research and development, Utilization of Chinese Herbal Medicines Constructed by The Ministry of Science and Technology of the PRC, College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Cheng Peng
- The Ministry of Education, Key Laboratory of standardization of Chinese herbal medicine, College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,The Breeding Base of State Key Laboratory of resources systems research and development, Utilization of Chinese Herbal Medicines Constructed by The Ministry of Science and Technology of the PRC, College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Li Guo
- The Ministry of Education, Key Laboratory of standardization of Chinese herbal medicine, College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,The Breeding Base of State Key Laboratory of resources systems research and development, Utilization of Chinese Herbal Medicines Constructed by The Ministry of Science and Technology of the PRC, College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
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Shu Y, Yin TP, Wang JP, Gan D, Zhang QY, Cai L, Ding ZT. Three new diterpenoid alkaloids isolated from Aconitum brevicalcaratum. Chin J Nat Med 2018; 16:866-870. [PMID: 30502768 DOI: 10.1016/s1875-5364(18)30128-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Indexed: 10/27/2022]
Abstract
In the present study, three new aconitine-type diterpenoid alkaloids brochyponines A-C (1-3) were isolated from the roots of Aconitum brevicalcaratum. Their structures were established on the basis of extensive spectroscopic analyses (IR, HR-ESI-MS, and 1D and 2D NMR). The NMR data of salt form for compound 1 in CDCl3 were also measured.
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Affiliation(s)
- Yan Shu
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming 650091, China
| | - Tian-Peng Yin
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming 650091, China; Zhuhai Key Laboratory of Fundamental and Applied Research in Traditional Chinese Medicine, Zunyi Medical University Zhuhai Campus, Zhuhai 519041, China
| | - Jia-Peng Wang
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming 650091, China
| | - Dong Gan
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming 650091, China
| | - Qin-Yan Zhang
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming 650091, China
| | - Le Cai
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming 650091, China.
| | - Zhong-Tao Ding
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming 650091, China.
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Guo Q, Xia H, Meng X, Shi G, Xu C, Zhu C, Zhang T, Shi J. C 19-Diterpenoid alkaloid arabinosides from an aqueous extract of the lateral root of Aconitum carmichaelii and their analgesic activities. Acta Pharm Sin B 2018; 8:409-419. [PMID: 29881680 PMCID: PMC5989918 DOI: 10.1016/j.apsb.2018.03.009] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 03/01/2018] [Accepted: 03/18/2018] [Indexed: 02/04/2023] Open
Abstract
Eight new C19-diterpenoid alkaloid arabinosides, named aconicarmichosides E–L (1–8), were isolated from an aqueous extract of the lateral roots of Aconitum carmichaelii (Fu Zi). Their structures were determined by spectroscopic and chemical methods including 2D NMR experiments and acid hydrolysis. Compounds 1–8, together with the previously reported four neoline 14-O-arabinosides from the same plant, represent the only examples of glycosidic diterpenoid alkaloids so far. At a dose of 1.0 mg/kg (i.p.), as compared with the black control, compounds 1, 2, and 4–6 exhibited analgesic effects with >65.6% inhibitions against acetic acid-induced writhing of mice. Structure–activity relationship was also discussed.
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Unprecedented C 19 -diterpenoid alkaloid glycosides from an aqueous extract of “fu zi”: Neoline 14- O - l -arabinosides with four isomeric l -anabinosyls. CHINESE CHEM LETT 2017. [DOI: 10.1016/j.cclet.2017.04.026] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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15
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Meng XH, Jiang ZB, Guo QL, Shi JG. A minor arcutine-type C 20 -diterpenoid alkaloid iminium constituent of “fu zi”. CHINESE CHEM LETT 2017. [DOI: 10.1016/j.cclet.2016.11.010] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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16
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Anti-cancer and anti-inflammatory new vakognavine-type alkaloid from the roots of Aconitum carmichaelii. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.11.065] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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17
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Napelline-type C20-diterpenoid alkaloid iminiums from an aqueous extract of “fu zi”: Solvent-/base-/acid-dependent transformation and equilibration between alcohol iminium and aza acetal forms. CHINESE CHEM LETT 2016. [DOI: 10.1016/j.cclet.2016.05.013] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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18
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Johnson JS, Chong E, Tu KN, Blum SA. Kinetic Study of Carbophilic Lewis Acid Catalyzed Oxyboration and the Noninnocent Role of Sodium Chloride. Organometallics 2016; 35:655-662. [PMID: 31007335 DOI: 10.1021/acs.organomet.5b00939] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In the present study, the oxyboration reaction catalyzed by IPrAuTFA in the presence and absence of NaTFA has been examined with kinetic studies, mass spectrometry, and 1H NMR and 11B NMR spectroscopy. Data from monitoring the reactions over the temperature range from 30 to 70 °C, the catalyst range from 1.3 to 7.5 mol %, and the NaTFA additive range from 2.5 to 30 mol % suggests a mechanism that involves rate-determining catalyst generation. Data from additive studies that replaced NaTFA with NaBARF (BARF = tetrakis[3,5-bis(trifluoromethyl)phenyl]borate) or Bu4NTFA as an alternative additive suggest that catalyst quenching from residual NaCl remaining from a one-pot substrate synthesis/reaction method is the cause of this effect, despite the low solubility of this NaCl byproduct in toluene. Material produced through an alternative, sodium chloride free substrate synthesis exhibited faster reaction rates, consistent with a change in rate-determining step that depended on the substrate synthesis route.
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Affiliation(s)
- Joel S Johnson
- Department of Chemistry, University of California, Irvine, California 92697-2025, United States
| | - Eugene Chong
- Department of Chemistry, University of California, Irvine, California 92697-2025, United States
| | - Kim N Tu
- Department of Chemistry, University of California, Irvine, California 92697-2025, United States
| | - Suzanne A Blum
- Department of Chemistry, University of California, Irvine, California 92697-2025, United States
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Tang TX, Chen QF, Liu XY, Jian XX, Wang FP. New C20-diterpenoid alkaloids from Aconitum vilmorrianum and structural revision of 2-O-acetylorochrine and orochrine. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2015; 18:315-327. [PMID: 26479584 DOI: 10.1080/10286020.2015.1084506] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Three new C20-diterpenoid alkaloids vilmorrianines E (1), F (2), and G (3) were isolated from the whole plants of Aconitum vilmorrianum, along with one artifact N-chloromethyl vilmorrianine E hydrochloride (4), as well as two known alkaloids hemsleyaconitines F (5) and G (6). The structures of 1-4 were established by HR-ESI-MS, 1D-, 2D-NMR (HMQC, HMBC, and NOESY), and single-crystal X-ray diffraction analysis. In addition, the structures of naturally occurring 2-O-acetylorochrine (7) and orochrine (8) were revised to be the known alkaloids heterophylloidine (9) and deacetyl heterophylloidine (10), respectively, on the basis of consideration of transannular effect and chemical correlations.
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Affiliation(s)
- Tian-Xing Tang
- a Department of Chemistry of Medicinal Natural Products , West China College of Pharmacy, Sichuan University , Chengdu 610041 , China
| | - Qi-Feng Chen
- a Department of Chemistry of Medicinal Natural Products , West China College of Pharmacy, Sichuan University , Chengdu 610041 , China
| | - Xiao-Yu Liu
- a Department of Chemistry of Medicinal Natural Products , West China College of Pharmacy, Sichuan University , Chengdu 610041 , China
| | - Xi-Xian Jian
- a Department of Chemistry of Medicinal Natural Products , West China College of Pharmacy, Sichuan University , Chengdu 610041 , China
| | - Feng-Peng Wang
- a Department of Chemistry of Medicinal Natural Products , West China College of Pharmacy, Sichuan University , Chengdu 610041 , China
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Mei Q, Wang YN, Zhao M, Liu XY, Peng SQ, Wang FP. 1H–15N HMBC spectra of C18-diterpenoid alkaloids. CHINESE CHEM LETT 2015. [DOI: 10.1016/j.cclet.2015.04.028] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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