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Chen SS, Wang H, Wu B, Li Q, Gong J, Zhao YL, Zhao Y, Xiao X, Lam JWY, Zhao Z, Luo XD, Tang BZ. Natural Coumarin Isomers with Dramatically Different AIE Properties: Mechanism and Application. ACS CENTRAL SCIENCE 2023; 9:883-891. [PMID: 37252345 PMCID: PMC10214507 DOI: 10.1021/acscentsci.3c00012] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Indexed: 05/31/2023]
Abstract
Aggregation-induced emission luminogens (AIEgens) are of great importance in optoelectronics and biomedical fields. However, the popular design philosophy by combining rotors with traditional fluorophores limits the imagination and structural diversity of AIEgens. Inspired by the fluorescent roots of the medicinal plant Toddalia asiatica, we discovered two unconventional rotor-free AIEgens, 5-methoxyseselin (5-MOS) and 6-methoxyseselin (6-MOS). Interestingly, a slight structural difference of the coumarin isomers leads to completely contrary fluorescent properties upon aggregation in aqueous media. Further mechanism investigation indicates that 5-MOS forms different extents of aggregates with the assistance of protonic solvents, leading to electron/energy transfer, which is responsible for its unique AIE feature, i.e., reduced emission in aqueous media but enhanced emission in crystal. Meanwhile, for 6-MOS, the conventional restriction of the intramolecular motion (RIM) mechanism is responsible for its AIE feature. More interestingly, the unique water-sensitive fluorescence property of 5-MOS enables its successful application for wash-free mitochondria imaging. This work not only demonstrates an ingenious tactic to seek new AIEgens from natural fluorescent species but also benefits the structure design and application exploration of next-generation AIEgens.
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Affiliation(s)
- Shan-Shan Chen
- State
Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, PR China
- Key
Laboratory of Medicinal Chemistry for Natural Resource, Ministry of
Education and Yunnan Province, Yunnan Characteristic Plant Extraction
Laboratory, School of Chemical Science and Technology, Yunnan University, Kunming 650500, PR China
- University
of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Haoran Wang
- School
of Science and Engineering, Shenzhen Institute of Aggregate Science
and Technology, The Chinese University of
Hong Kong, Shenzhen, Guangdong 518172, China
- Hong
Kong Branch of Chinese National Engineering Research Center for Tissue
Restoration and Reconstruction and Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Bo Wu
- School
of Science and Engineering, Shenzhen Institute of Aggregate Science
and Technology, The Chinese University of
Hong Kong, Shenzhen, Guangdong 518172, China
| | - Qiyao Li
- School
of Science and Engineering, Shenzhen Institute of Aggregate Science
and Technology, The Chinese University of
Hong Kong, Shenzhen, Guangdong 518172, China
| | - Junyi Gong
- School
of Science and Engineering, Shenzhen Institute of Aggregate Science
and Technology, The Chinese University of
Hong Kong, Shenzhen, Guangdong 518172, China
| | - Yun-Li Zhao
- Key
Laboratory of Medicinal Chemistry for Natural Resource, Ministry of
Education and Yunnan Province, Yunnan Characteristic Plant Extraction
Laboratory, School of Chemical Science and Technology, Yunnan University, Kunming 650500, PR China
| | - Yun Zhao
- State
Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, PR China
- University
of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Xia Xiao
- Key
Laboratory of Medicinal Chemistry for Natural Resource, Ministry of
Education and Yunnan Province, Yunnan Characteristic Plant Extraction
Laboratory, School of Chemical Science and Technology, Yunnan University, Kunming 650500, PR China
| | - Jacky W. Y. Lam
- Hong
Kong Branch of Chinese National Engineering Research Center for Tissue
Restoration and Reconstruction and Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Zheng Zhao
- School
of Science and Engineering, Shenzhen Institute of Aggregate Science
and Technology, The Chinese University of
Hong Kong, Shenzhen, Guangdong 518172, China
| | - Xiao-Dong Luo
- State
Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, PR China
- Key
Laboratory of Medicinal Chemistry for Natural Resource, Ministry of
Education and Yunnan Province, Yunnan Characteristic Plant Extraction
Laboratory, School of Chemical Science and Technology, Yunnan University, Kunming 650500, PR China
| | - Ben Zhong Tang
- School
of Science and Engineering, Shenzhen Institute of Aggregate Science
and Technology, The Chinese University of
Hong Kong, Shenzhen, Guangdong 518172, China
- Hong
Kong Branch of Chinese National Engineering Research Center for Tissue
Restoration and Reconstruction and Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
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Phytocompounds as a source for the development of new drugs to treat respiratory viral infections. STUDIES IN NATURAL PRODUCTS CHEMISTRY 2023; 77:187-240. [PMCID: PMC10204935 DOI: 10.1016/b978-0-323-91294-5.00007-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/03/2024]
Abstract
Respiratory viruses have an important history as a threat to global health. However, this problem has been aggravated due to the appearance of new outbreaks caused by a newly discovered virus or variant. Recently, the new coronavirus (SARS-CoV-2) has been a major concern for health authorities, and it was classified as a pandemic by the World Health Organization. Secondary metabolites obtained from plants represent an alternative to the discovery of new active molecules and have already shown potential to combat different viruses. In an effort to demonstrate the broad spectrum of antiviral action from these metabolites, this work describes the compounds that were effective against the major viruses that cause respiratory infections in humans. In addition, their mechanisms of action were highlighted as an approach to better understanding the virus-bioactive substance relationship. Finally, this study warns that, although phytocompounds have a broad antiviral action spectrum, the development of products and clinical trials based on these secondary metabolites is still scarce and therefore deserves greater attention from the scientific community.
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Shan L, Shi X, Hu T, Hu J, Guo Z, Song Y, Su D, Zhang X. In vitro differences in toddalolactone metabolism in various species and its effect on cytochrome P450 expression. PHARMACEUTICAL BIOLOGY 2022; 60:1591-1605. [PMID: 35944298 PMCID: PMC9367672 DOI: 10.1080/13880209.2022.2108062] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 07/17/2022] [Accepted: 07/27/2022] [Indexed: 06/15/2023]
Abstract
CONTEXT Toddalolactone, the main component of Toddalia asiatica (L.) Lam. (Rutaceae), has anticancer, antihypertension, anti-inflammatory, and antifungal activities. OBJECTIVE This study investigated the metabolic characteristics of toddalolactone. MATERIALS AND METHODS Toddalolactone metabolic stabilities were investigated by incubating toddalolactone (20 μM) with liver microsomes from humans, rabbits, mice, rats, dogs, minipigs, and monkeys for 0, 30, 60, and 90 min. The CYP isoforms involved in toddalolactone metabolism were characterized based on chemical inhibition studies and screening assays. The effects of toddalolactone (0, 10, and 50 µM) on CYP1A1 and CYP3A5 protein expression were investigated by immunoblotting. After injecting toddalolactone (10 mg/kg), in vivo pharmacokinetic profiles using six Sprague-Dawley rats were investigated by taking 9-time points, including 0, 0.25, 0.5, 0.75, 1, 2, 4, 6 and 8 h. RESULTS Monkeys showed the greatest metabolic capacity in CYP-mediated and UGT-mediated reaction systems with short half-lives (T1/2) of 245 and 66 min, respectively, while T1/2 of humans in two reaction systems were 673 and 83 min, respectively. CYP1A1 and CYP3A5 were the major CYP isoforms involved in toddalolactone biotransformation. Induction of CYP1A1 protein expression by 50 μM toddalolactone was approximately 50% greater than that of the control (0 μM). Peak plasma concentration (Cmax) for toddalolactone was 0.42 μg/mL, and Tmax occurred at 0.25 h post-dosing. The elimination t1/2 was 1.05 h, and the AUC0-t was 0.46 μg/mL/h. CONCLUSIONS These findings demonstrated the significant species differences of toddalolactone metabolic profiles, which will promote appropriate species selection in further toddalolactone studies.
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Affiliation(s)
- Lina Shan
- The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Xianbao Shi
- The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Tingting Hu
- The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Jiayin Hu
- The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Zhe Guo
- The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Yonggui Song
- Jiangxi University of Traditional Chinese Medicine, Nanchang, China
| | - Dan Su
- Jiangxi University of Traditional Chinese Medicine, Nanchang, China
| | - Xiaoyong Zhang
- The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
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Wu XD, Hu JL, Nie W, Hu M, Li JD, Shen YF, Ding LF, Song LD. Spirocyclohexadienone-Type Neolignans with Neuroprotective and Neurite Outgrowth Enhancing Activities from Magnolia liliiflora. Chem Biodivers 2022; 19:e202200618. [PMID: 35972824 DOI: 10.1002/cbdv.202200618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Accepted: 07/26/2022] [Indexed: 11/11/2022]
Abstract
Three rare spirocyclohexadienone-type neolignans, magnoflorins A-C (1-3), and three known analogs (4-6), were isolated from the leaves of Magnolia liliiflora. Magnoflorin D (4) was obtained from natural resources for the first time. The chemical structures and absolute configurations of 1-4 were elucidated through detailed analysis of HR-ESI-MS, IR, 1 H, 13 C, and 2D NMR, and ECD experiments. The absolute configuration of 5 were characterized by X-ray crystallography in present study. Moreover, compounds 4 and 5 displayed moderate neuroprotective activity against corticosterone-induced PC12 cells injury at 20 μM with cell viability of 71.5±0.99 % and 73.0±1.42 %, respectively, compared to the model group with 60.83±0.93 %. Compound 6 could enhance neurite outgrowth of nerve growth factor (NGF)-induced PC12 cells at 10 μM with the differentiation rate of 11.98 %, compared with 20.49 % of 50 ng/ml NGF.
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Affiliation(s)
- Xing-De Wu
- Key Laboratory of Ethnic Medicine Resource Chemistry, State Ethnic Affairs Commission & Ministry of Education, Yunnan Minzu University, Kunming, 650500, P. R. China
| | - Jian-Lin Hu
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, 650500, P. R. China
| | - Wei Nie
- Key Laboratory of Ethnic Medicine Resource Chemistry, State Ethnic Affairs Commission & Ministry of Education, Yunnan Minzu University, Kunming, 650500, P. R. China.,School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, 650500, P. R. China
| | - Ming Hu
- Key Laboratory of Ethnic Medicine Resource Chemistry, State Ethnic Affairs Commission & Ministry of Education, Yunnan Minzu University, Kunming, 650500, P. R. China
| | - Jin-Da Li
- Key Laboratory of Ethnic Medicine Resource Chemistry, State Ethnic Affairs Commission & Ministry of Education, Yunnan Minzu University, Kunming, 650500, P. R. China.,School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, 650500, P. R. China
| | - Yi-Fan Shen
- Key Laboratory of Ethnic Medicine Resource Chemistry, State Ethnic Affairs Commission & Ministry of Education, Yunnan Minzu University, Kunming, 650500, P. R. China.,School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, 650500, P. R. China
| | - Lin-Fen Ding
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, 650500, P. R. China
| | - Liu-Dong Song
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, 650500, P. R. China
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5
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Slepukhin PA, Fatykhov RF, Sharapov AD, Valieva MI, Starnovskaya ES, Khalymbadzha IA, Kopchuk DS, Zyryanov GV, Chupakhin ON. X-Ray Diffraction Study of 8-(Pyridin-2-yl)- and 8-(1,2,4-Triazin-5-yl)-2H-chromen-2-ones. RUSS J GEN CHEM+ 2022. [DOI: 10.1134/s1070363222070179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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6
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Yu JH, Yu ZP, Capon RJ, Zhang H. Natural Enantiomers: Occurrence, Biogenesis and Biological Properties. Molecules 2022; 27:molecules27041279. [PMID: 35209066 PMCID: PMC8880303 DOI: 10.3390/molecules27041279] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 02/09/2022] [Accepted: 02/10/2022] [Indexed: 02/01/2023] Open
Abstract
The knowledge that natural products (NPs) are potent and selective modulators of important biomacromolecules (e.g., DNA and proteins) has inspired some of the world’s most successful pharmaceuticals and agrochemicals. Notwithstanding these successes and despite a growing number of reports on naturally occurring pairs of enantiomers, this area of NP science still remains largely unexplored, consistent with the adage “If you don’t seek, you don’t find”. Statistically, a rapidly growing number of enantiomeric NPs have been reported in the last several years. The current review provides a comprehensive overview of recent records on natural enantiomers, with the aim of advancing awareness and providing a better understanding of the chemical diversity and biogenetic context, as well as the biological properties and therapeutic (drug discovery) potential, of enantiomeric NPs.
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Affiliation(s)
- Jin-Hai Yu
- School of Biological Science and Technology, University of Jinan, Jinan 250022, China; (J.-H.Y.); (Z.-P.Y.)
| | - Zhi-Pu Yu
- School of Biological Science and Technology, University of Jinan, Jinan 250022, China; (J.-H.Y.); (Z.-P.Y.)
| | - Robert J. Capon
- Institute for Molecular Bioscience, The University of Queensland, St. Lucia, Brisbane, QLD 4072, Australia
- Correspondence: (R.J.C.); (H.Z.)
| | - Hua Zhang
- Institute for Molecular Bioscience, The University of Queensland, St. Lucia, Brisbane, QLD 4072, Australia
- Correspondence: (R.J.C.); (H.Z.)
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7
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Ma W, Ali I, Li Y, Hussain H, Zhao H, Sun X, Xie L, Cui L, Wang D. A Simple and Efficient Two-Dimensional High-Speed Counter-Current Chromatography Linear Gradient and Isocratic Elution Modes for the Preparative Separation of Coumarins from Roots of Toddalia asiatica (Linn.) Lam. Molecules 2021; 26:molecules26195986. [PMID: 34641527 PMCID: PMC8512887 DOI: 10.3390/molecules26195986] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 09/28/2021] [Accepted: 09/28/2021] [Indexed: 02/07/2023] Open
Abstract
Toddalia asiatica (L.) Lam. (Rutaceae) has shown a broad spectrum of biological properties, such as anti-inflammatory, antioxidant, antimicrobial, anti-HIV, and anticancer properties. The present study is concerned with the separation of the main components with broad partition coefficients (KD values) from T. asiatica, using linear gradient high-speed counter-current chromatography (LGCCC) combined with an off-line two-dimensional (2D) mode. Similar to the binary gradient HPLC, the LGCCC mode is operated by the adjustment of the proportion between the mobile phase of 5:5:1:9 (v/v) (pump A) and 5:5:4.5:5.5 (v/v) (pump B) in an n-hexane/ethyl acetate/methanol/water solvent system. The off-line 2D-CCC mode was used in this study for the secondary separation of two similar KD value compounds with n-hexane/ethyl acetate/methanol/water (5:5:4:6, v/v). Notably, six coumarins, namely, tomentin (1), toddalolactone (2), 5,7,8-trimethoxycoumarin (3), mexoticin (4), isopimpinellin (5), and toddanone (6), were efficiently separated. The structures of the pure compounds were elucidated by spectral techniques and compared with the literature.
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Affiliation(s)
- Wenya Ma
- College of Life Science, Shandong Normal University, Jinan 250014, China;
- School of Pharmaceutical Sciences and Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China; (I.A.); (H.Z.); (X.S.); (L.X.)
| | - Iftikhar Ali
- School of Pharmaceutical Sciences and Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China; (I.A.); (H.Z.); (X.S.); (L.X.)
- Department of Chemistry, Karakoram International University, Gilgit 15100, Pakistan
| | - Yali Li
- Key Laboratory of the Innovative, Development of Functional Staple and the Nutritional, Intervention for Chronic Disease, China National Research Institute of Food & Fermentation Industries Co., Ltd., Beijing 100015, China;
| | - Hidayat Hussain
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Weinberg 3, D-06120 Halle (Saale), Germany;
| | - Huanzhu Zhao
- School of Pharmaceutical Sciences and Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China; (I.A.); (H.Z.); (X.S.); (L.X.)
| | - Xuan Sun
- School of Pharmaceutical Sciences and Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China; (I.A.); (H.Z.); (X.S.); (L.X.)
| | - Lei Xie
- School of Pharmaceutical Sciences and Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China; (I.A.); (H.Z.); (X.S.); (L.X.)
| | - Li Cui
- School of Pharmaceutical Sciences and Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China; (I.A.); (H.Z.); (X.S.); (L.X.)
- Correspondence: (L.C.); or (D.W.); Tel.: +86-0531-8260-5319 (L.C.); Fax: +86-0531-8296-4889 (L.C.)
| | - Daijie Wang
- College of Life Science, Shandong Normal University, Jinan 250014, China;
- School of Pharmaceutical Sciences and Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China; (I.A.); (H.Z.); (X.S.); (L.X.)
- Correspondence: (L.C.); or (D.W.); Tel.: +86-0531-8260-5319 (L.C.); Fax: +86-0531-8296-4889 (L.C.)
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8
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A systematic review on traditional medicine Toddalia asiatica (L.) Lam.: Chemistry and medicinal potential. Saudi Pharm J 2021; 29:781-798. [PMID: 34408540 PMCID: PMC8360773 DOI: 10.1016/j.jsps.2021.05.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Accepted: 05/11/2021] [Indexed: 11/23/2022] Open
Abstract
Toddalia asiatica (L.) Lam., belonging to Toddalia genus of Rutaceae family, is a folk medicine in China used for hundreds of years. The whole plant can be used as medicine, especially the root that used to be applied in the folk. In recent decades, with the in-depth research from domestic and foreign researchers, it has gradually been discovered that the chemical components in T. asiatica are mainly coumarins and alkaloids. Its pharmacological effects are manifested in anti-inflammatory and analgesic, hemostatic coagulation, anti-tumor, treatment of cardiovascular diseases, etc. It has a wide range of clinical applications and significant effects on rheumatism, pain, wound bleeding, and bruises. Due to its important research value, in this article, the chemical compositions and pharmacological effects of T. asiatica are comprehensively expounded in recent years in order to provide a reference for the related research and application of this medicinal material, which were carried out through a bibliometric search using the Science Citation Index- Expanded (SCIE) database, web of science, Google scholar and Chinese National Knowledge Infrastructure (CNKI) and all that.
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Chen Z, Zeng P, Zhang S, Huang X. Lewis‐Acid‐Mediated One‐Pot Tandem Reactions for Synthesis of Structurally Diverse Furo[3,2‐c]coumarins. ChemistrySelect 2021. [DOI: 10.1002/slct.202101029] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Zhiwei Chen
- College of Pharmaceutical Sciences Zhejiang University of Technology Hangzhou 310014 P.R. China
| | - Piaopiao Zeng
- College of Pharmaceutical Sciences Zhejiang University of Technology Hangzhou 310014 P.R. China
| | - Shuo Zhang
- College of Pharmaceutical Sciences Zhejiang University of Technology Hangzhou 310014 P.R. China
| | - Xiaoxiao Huang
- College of Pharmaceutical Sciences Zhejiang University of Technology Hangzhou 310014 P.R. China
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10
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Wang Y, Zhang WY, Xie JH, Yu ZL, Tan JH, Zheng C, Hou XL, You SL. Enantioselective Desymmetrization of Bisphenol Derivatives via Ir-Catalyzed Allylic Dearomatization. J Am Chem Soc 2020; 142:19354-19359. [PMID: 33140959 DOI: 10.1021/jacs.0c09638] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Spirocyclic hexadienones with multiple stereogenic centers are frequently found in natural products but remain challenging targets to synthesize. Herein, we report the enantioselective desymmetrization of bisphenol derivatives via Ir-catalyzed allylic dearomatization reactions, affording spirocyclic hexadienone derivatives with up to three contiguous stereogenic centers in good yields (up to 90%) and excellent enantioselectivity (up to 99% ee). The high efficiency of this reaction is exemplified by the short reaction time (30 min), low catalyst loading (down to 0.2 mol %), and ability to perform the reaction on a gram-scale. The total syntheses of (+)-tatanan B and (+)-tatanan C were also realized using this Ir-catalyzed allylic dearomatization reaction as a key step.
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Affiliation(s)
- Ye Wang
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
| | - Wen-Yun Zhang
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
| | - Jia-Hao Xie
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
| | - Zong-Lun Yu
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
| | - Jia-Hao Tan
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
| | - Chao Zheng
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
| | - Xue-Long Hou
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
| | - Shu-Li You
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
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11
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Chen C, He L. Advances in research of spirodienone and its derivatives: Biological activities and synthesis methods. Eur J Med Chem 2020; 203:112577. [DOI: 10.1016/j.ejmech.2020.112577] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 05/30/2020] [Accepted: 06/11/2020] [Indexed: 12/17/2022]
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12
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Synthesis, computational study and cytotoxicity of 4-hydroxycoumarin-derived imines/enamines. Mol Divers 2020; 25:1011-1024. [PMID: 32323127 DOI: 10.1007/s11030-020-10086-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Accepted: 04/08/2020] [Indexed: 10/24/2022]
Abstract
In this study, we applied a direct condensation between 3-acetyl-4-hydroxy-2H-chromen-2-one and different amines (anilines and benzyl amines) in order to synthesize some coumarin-based imines/enamines (3a-o) as cytotoxic agents. All the compounds were characterized by means of FT-IR, NMR, mass spectroscopy and elemental analyses. Since the title compounds can exist as different forms including (s-cis)-imine and (s-trans)-imine or (E and Z)-enamines, their conformational and geometrical aspects were investigated computationally by DFT method. The optimized geometry parameters, ΔE, ΔG, ΔH, Mulliken atomic charge, HOMO and LUMO energy, and NBO analysis suggested that these compounds can exist predominantly in (E)-enamine form. All the synthesized compounds (3a-o) were evaluated in vitro for their cytotoxic activities against cancer cell lines (MCF-7 and A549) and normal cell line (BEAS-2B) using the MTT assay. The 4-hydroxybenzyl derivative 3k was found to be the most potent cytotoxic agent with no selectivity, similar to doxorubicin. However, the 4-chlorobenzyl analog 3o could be considered as an equipotent compound respect to doxorubicin with higher selectivity.
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13
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Separation of New Coumarin Glycosides from Toddalia asiatica Using Offline Two-Dimensional High-Performance Liquid Chromatography. PLANTS 2020; 9:plants9040428. [PMID: 32244561 PMCID: PMC7238425 DOI: 10.3390/plants9040428] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Revised: 03/23/2020] [Accepted: 03/26/2020] [Indexed: 12/16/2022]
Abstract
Coumarins and flavonoids are the major constituents of Toddalia asiatica. The separation and purification of ingredients from T. asiatica is an important procedure to acquire high-purity compounds for subsequent pharmacological investigation to discover leading compounds. In the present work, an offline two-dimensional high-performance liquid chromatography (HPLC) method was successfully established for the separation of high-purity glycosides from T. asiatica. Based on the separation results obtained with two different chromatographic stationary phases, a phenyl-bonded silica-based reversed-phase column was employed as the first HPLC preparation, and three fractions were obtained from the sample. Then, the fractions were isolated and purified on an octadecyl-bonded silica-based reversed-phase column to obtain high-purity compounds in the second HPLC separation. As a result, three coumarin glycosides, including two undescribed and one known, along with one known flavonoid glycoside with more than 98% purity were isolated from the sample. The structures of the isolated compounds were elucidated on the basis of extensive spectroscopic evidence derived from optical rotation, mass spectrometry, and nuclear magnetic resonance experiments. Two-dimensional HPLC with different stationary phases has the potential to be an efficient method for the separation of high-purity compounds from T. asiatica.
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Zhong W, Wang J, Wei X, Fu T, Chen Y, Zeng Q, Huang Z, Huang X, Zhang W, Zhang S, Long L, Wang F. Three Pairs of New Spirocyclic Alkaloid Enantiomers From the Marine-Derived Fungus Eurotium sp. SCSIO F452. Front Chem 2019; 7:350. [PMID: 31165062 PMCID: PMC6536037 DOI: 10.3389/fchem.2019.00350] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Accepted: 04/29/2019] [Indexed: 11/13/2022] Open
Abstract
Three pairs of new spirocyclic alkaloid enantiomers eurotinoids A-C (1-3), as well as a known biogenetically related racemate dihydrocryptoechinulin D (4) were isolated from a marine-derived fungus Eurotium sp. SCSIO F452. Their structures were determined by spectroscopic analyses and electronic circular dichroism (ECD) calculations. Compounds 1 and 2 represent the first two "meta" products from a non-stereoselective [4 + 2] Diels-Alder cycloaddition presumably between an enone group of a diketopiperazine alkaloid and a diene group of a benzaldehyde derivative via a new head-to-tail coupling mode biosynthetically, while 3 and 4 were "ortho" products. Their enantiomers exhibited different antioxidative and cytotoxic activities. The modes of action were investigated by a preliminary molecular docking study.
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Affiliation(s)
- Weimao Zhong
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, RNAM Center for Marine Microbiology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China.,College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Junfeng Wang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, RNAM Center for Marine Microbiology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China
| | - Xiaoyi Wei
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
| | - Tingdan Fu
- Institute of Tropical Medicine, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yuchan Chen
- State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Open Laboratory of Applied Microbiology, Guangdong Institute of Microbiology, Guangzhou, China
| | - Qi Zeng
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, RNAM Center for Marine Microbiology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China.,College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Zhonghui Huang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, RNAM Center for Marine Microbiology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China.,College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Xinan Huang
- Institute of Tropical Medicine, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Weimin Zhang
- State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Open Laboratory of Applied Microbiology, Guangdong Institute of Microbiology, Guangzhou, China
| | - Si Zhang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, RNAM Center for Marine Microbiology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China
| | - Lijuan Long
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, RNAM Center for Marine Microbiology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China
| | - Fazuo Wang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, RNAM Center for Marine Microbiology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China
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Imperatore C, Scuotto M, Valadan M, Rivieccio E, Saide A, Russo A, Altucci C, Menna M, Ramunno A, Mayol L, Russo G, Varra M. Photo-control of cancer cell growth by benzodiazo N-substituted pyrrole derivatives. J Photochem Photobiol A Chem 2019. [DOI: 10.1016/j.jphotochem.2019.03.042] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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16
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YANG GX, MA GL, LI H, HUANG T, XIONG J, HU JF. Advanced natural products chemistry research in China between 2015 and 2017. Chin J Nat Med 2018; 16:881-906. [DOI: 10.1016/s1875-5364(18)30131-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2018] [Indexed: 10/27/2022]
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17
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Liu F, Wang YN, Li Y, Ma SG, Qu J, Liu YB, Niu CS, Tang ZH, Li YH, Li L, Yu SS. Minor Nortriterpenoids from the Twigs and Leaves of Rhododendron latoucheae. JOURNAL OF NATURAL PRODUCTS 2018; 81:1721-1733. [PMID: 30106288 DOI: 10.1021/acs.jnatprod.7b01074] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
A hyphenated NMR technique (analytical HPLC with a DAD connected to MS, SPE, and NMR) has proven effective for the full structural analysis and identification of minor natural products in complex mixtures. Application of this hyphenated technique to the CH2Cl2-soluble fraction of Rhododendron latoucheae led to the identification of 15 new minor ursane-type 28-nortriterpenoids (1-15). Compounds 1 and 12 inhibited HSV-1 with IC50 values of 6.4 and 0.4 μM, respectively.
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18
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Bizzarri BM, Botta L, Capecchi E, Celestino I, Checconi P, Palamara AT, Nencioni L, Saladino R. Regioselective IBX-Mediated Synthesis of Coumarin Derivatives with Antioxidant and Anti-influenza Activities. JOURNAL OF NATURAL PRODUCTS 2017; 80:3247-3254. [PMID: 29236486 DOI: 10.1021/acs.jnatprod.7b00665] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Different catechol and pyrogallol derivatives have been synthesized by oxidation of coumarins with 2-iodoxybenzoic acid (IBX) in DMSO at 25 °C. A high regioselectivity was observed in accordance with the stability order of the incipient carbocation or radical benzylic-like intermediate. The oxidation was also effective in water under heterogeneous conditions by using IBX supported on polystyrene. The new derivatives showed improved antioxidant effects in the DPPH test and inhibitory activity against the influenza A/PR8/H1N1 virus. These data represent a new entry for highly oxidized coumarins showing an antiviral activity possibly based on the control of the intracellular redox value.
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Affiliation(s)
- Bruno M Bizzarri
- Department of Ecology and Biology, University of Tuscia , Via C. De Lellis, Viterbo, 01100, Italy
| | - Lorenzo Botta
- Department of Ecology and Biology, University of Tuscia , Via C. De Lellis, Viterbo, 01100, Italy
| | - Eliana Capecchi
- Department of Ecology and Biology, University of Tuscia , Via C. De Lellis, Viterbo, 01100, Italy
| | - Ignacio Celestino
- IRCCS, San Raffaele Pisana, Telematic University , Rome, 00163, Italy
| | - Paola Checconi
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Laboratory affiliated to Istituto Pasteur Italia-Fondazione Cenci Bolognetti , Rome, 00161, Italy
| | - Anna T Palamara
- IRCCS, San Raffaele Pisana, Telematic University , Rome, 00163, Italy
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Laboratory affiliated to Istituto Pasteur Italia-Fondazione Cenci Bolognetti , Rome, 00161, Italy
| | - Lucia Nencioni
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Laboratory affiliated to Istituto Pasteur Italia-Fondazione Cenci Bolognetti , Rome, 00161, Italy
| | - Raffaele Saladino
- Department of Ecology and Biology, University of Tuscia , Via C. De Lellis, Viterbo, 01100, Italy
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Liu YF, Yu SS. Survey of natural products reported by Asian research groups in 2016. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2017; 19:1047-1072. [PMID: 29078723 DOI: 10.1080/10286020.2017.1391229] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Accepted: 10/09/2017] [Indexed: 06/07/2023]
Abstract
The new natural products reported in peer-reviewed articles in 2016 in journals with good reputations were reviewed and analyzed. The advances that Asian research groups made in the field of natural products chemistry in 2016 were summarized. Compounds with unique structural features and/or promising bioactivities originating from Asian natural sources were discussed based on structural classification.
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Affiliation(s)
- Yan-Fei Liu
- a 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
| | - Shi-Shan Yu
- a 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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20
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Rhodoterpenoids A‒C, Three New Rearranged Triterpenoids from Rhododendron latoucheae by HPLC‒MS‒SPE‒NMR. Sci Rep 2017; 7:7944. [PMID: 28801631 PMCID: PMC5554136 DOI: 10.1038/s41598-017-06320-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Accepted: 06/09/2017] [Indexed: 11/12/2022] Open
Abstract
Rhodoterpenoids A‒C (1‒3), three new rearranged triterpenoids, together with one new biogenetically related compound, rhodoterpenoid D (4), were isolated and efficiently elucidated from Rhododendron latoucheae by high-performance liquid chromatography−mass spectrometry−solid-phase extraction−nuclear magnetic resonance (HPLC‒MS‒SPE‒NMR). Compounds 1 and 2 possess an unprecedented skeleton with a 5/7/6/6/6-fused pentacyclic ring system, while compound 3 contains a unique 6/7/6/6/6-fused pentacyclic carbon backbone. Their structures were determined by extensive spectroscopic methods and electronic circular dichroism (ECD) analyses. Plausible biogenetic pathways for 1‒4 were proposed. Compounds 1 and 4 showed potential activity against herpes simplex virus 1 (HSV-1) with IC50 values of 8.62 and 6.87 μM, respectively.
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21
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Li W, Zhang JS, Huang JL, Jiang MH, Xu YK, Ahmed A, Yin S, Tang GH. New prenylated coumarins from the stems of Toddalia asiatica. RSC Adv 2017. [DOI: 10.1039/c7ra04794k] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Prenylated coumarins from Toddalia asiatica were established using spectroscopic data, X-ray, and ECD and specific optical rotation calculations.
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Affiliation(s)
- Wei Li
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou
- China
| | - Jun-Sheng Zhang
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou
- China
| | - Jia-Luo Huang
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou
- China
| | - Min-Hong Jiang
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou
- China
| | - You-Kai Xu
- Key Laboratory of Tropical Plant Resource and Sustainable Use
- Xishuangbanna Tropical Botanical Garden
- Chinese Academy of Sciences
- Menglun
- China
| | - Abrar Ahmed
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou
- China
| | - Sheng Yin
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou
- China
| | - Gui-Hua Tang
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou
- China
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22
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Hill RA, Sutherland A. Hot off the press. Nat Prod Rep 2016; 33:1352-1356. [DOI: 10.1039/c6np90047j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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 kanamienamide from the marine cyanobacterium Moorea bouillonii.
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