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Zhang Y, Chen L, Jia Y. Total Synthesis of Pallamolides A-E. Angew Chem Int Ed Engl 2024; 63:e202319127. [PMID: 38504637 DOI: 10.1002/anie.202319127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 03/12/2024] [Accepted: 03/19/2024] [Indexed: 03/21/2024]
Abstract
We have achieved the first total synthesis of pallamolides A-E. Of these compounds, pallamolides B-E possess intriguing tetracyclic skeletons with novel intramolecular transesterifications. Key transformations include highly diastereoselective sequential Michael addition reactions to construct the bicyclo[2.2.2]octane core with the simultaneous generation of two quaternary carbon centers, a one-pot SmI2-mediated intramolecular ketyl-enoate cyclization/ketone reduction to generate the key oxabicyclo[3.3.1]nonane moiety, and an acid-mediated deprotection/oxa-Michael addition/β-hydroxy elimination cascade sequence to assemble the tetracyclic pallamolide skeleton. Kinetic resolution of ketone 14 through Corey-Bakshi-Shibata reduction enabled the asymmetric synthesis of pallamolides A-E.
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Affiliation(s)
- Yu Zhang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, and Chemical Biology Center, Peking University, 38 Xueyuan Road, Beijing, 100191, P. R. China
| | - Lijun Chen
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, and Chemical Biology Center, Peking University, 38 Xueyuan Road, Beijing, 100191, P. R. China
| | - Yanxing Jia
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, and Chemical Biology Center, Peking University, 38 Xueyuan Road, Beijing, 100191, P. R. China
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2
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Han J, Sun Y, Zhou J, Li Y, Jin X, Zhu M, Xu Z, Zhang J, Lou H. Sacculatane Diterpenoids from the Liverwort Plagiochila nitens Collected in China. JOURNAL OF NATURAL PRODUCTS 2024; 87:1124-1130. [PMID: 38419347 DOI: 10.1021/acs.jnatprod.4c00071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/02/2024]
Abstract
Seven new terpenoids, including six sacculatane diterpenoids plagiochilarins A-F (1-6), and one ent-2,3-seco-aromandrane sesquiterpenoid plagiochilarin H (8) with a 6/7/3/5 tetracyclic scaffold, alongside three known compounds, were obtained from the Chinese liverwort Plagiochila nitens Inoue. Plagiochilarin B (2) was unpredictably converted to the more stable artifact 7 under acid catalysis through cyclic ether formation. The reaction mechanism was reasonably deduced and experimentally verified. The structures of these terpenoids were determined by analysis of MS and NMR spectroscopic data and single-crystal X-ray diffraction. The inhibitory effect of all of the isolates was evaluated on the growth of two C. albicans strains, wild strain SC5314 and efflux pump-deficient strain DSY654. However, only plagiochilarin H (8) showed a MIC value of 16 μg/mL against C. albicans DSY654.
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Affiliation(s)
- Jingjing Han
- Department of Natural Products Chemistry, Key Lab of Chemical Biology of the Ministry of Education, Shandong University, Jinan 250012, People's Republic of China
- Department of Pharmacy, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250012, People's Republic of China
| | - Yan Sun
- Department of Natural Products Chemistry, Key Lab of Chemical Biology of the Ministry of Education, Shandong University, Jinan 250012, People's Republic of China
| | - Jinchuan Zhou
- School of Pharmacy, Linyi University, Linyi 27600, People's Republic of China
| | - Yi Li
- Department of Natural Products Chemistry, Key Lab of Chemical Biology of the Ministry of Education, Shandong University, Jinan 250012, People's Republic of China
- Department of Pharmacy, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250012, People's Republic of China
| | - Xueyang Jin
- Department of Natural Products Chemistry, Key Lab of Chemical Biology of the Ministry of Education, Shandong University, Jinan 250012, People's Republic of China
| | - Mingzhu Zhu
- Department of Natural Products Chemistry, Key Lab of Chemical Biology of the Ministry of Education, Shandong University, Jinan 250012, People's Republic of China
| | - Zejun Xu
- Department of Natural Products Chemistry, Key Lab of Chemical Biology of the Ministry of Education, Shandong University, Jinan 250012, People's Republic of China
| | - Jiaozhen Zhang
- Department of Natural Products Chemistry, Key Lab of Chemical Biology of the Ministry of Education, Shandong University, Jinan 250012, People's Republic of China
| | - Hongxiang Lou
- Department of Natural Products Chemistry, Key Lab of Chemical Biology of the Ministry of Education, Shandong University, Jinan 250012, People's Republic of China
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Xu H, Köllner TG, Chen F, Dickschat JS. Mechanistic characterisation of a sesquiterpene synthase for asterisca-1,6-diene from the liverwort Radula lindenbergiana and implications for pentalenene biosynthesis. Org Biomol Chem 2024; 22:1360-1364. [PMID: 38240688 DOI: 10.1039/d3ob02088f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2024]
Abstract
A sesquiterpene synthase from the liverwort Radula lindenbergiana was characterised and shown to produce the new sesquiterpene hydrocarbon (3R,9R)-asterisca-1,6-diene, besides small amounts of pentalenene. The biosynthesis of asterisca-1,6-diene was studied through isotopic labelling experiments, giving additional insights into the long discussed biosynthesis of pentalenene.
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Affiliation(s)
- Houchao Xu
- Kekulé-Institute for Organic Chemistry and Biochemistry, University of Bonn, Gerhard-Domagk-Straße 1, 53121 Bonn, Germany.
| | - Tobias G Köllner
- Max Planck Institute for Chemical Ecology, Hans-Knöll-Straße 8, 07745 Jena, Germany
| | - Feng Chen
- Department of Plant Sciences, University of Tennessee, 2431 Joe Johnson Drive, Knoxville, TN 37996-4561, USA
| | - Jeroen S Dickschat
- Kekulé-Institute for Organic Chemistry and Biochemistry, University of Bonn, Gerhard-Domagk-Straße 1, 53121 Bonn, Germany.
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Castel B, El Mahboubi K, Jacquet C, Delaux PM. Immunobiodiversity: Conserved and specific immunity across land plants and beyond. MOLECULAR PLANT 2024; 17:92-111. [PMID: 38102829 DOI: 10.1016/j.molp.2023.12.005] [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: 10/16/2023] [Revised: 11/20/2023] [Accepted: 12/12/2023] [Indexed: 12/17/2023]
Abstract
Angiosperms represent most plants that humans cultivate, grow, and eat. However, angiosperms are only one of five major land plant lineages. As a whole lineage, plants also include algal groups. All these clades represent a tremendous genetic diversity that can be investigated to reveal the evolutionary history of any given mechanism. In this review, we describe the current model of the plant immune system, discuss its evolution based on the recent literature, and propose future directions for the field. In angiosperms, plant-microbe interactions have been intensively studied, revealing essential cell surface and intracellular immune receptors, as well as metabolic and hormonal defense pathways. Exploring diversity at the genomic and functional levels demonstrates the conservation of these pathways across land plants, some of which are beyond plants. On basis of the conserved mechanisms, lineage-specific variations have occurred, leading to diversified reservoirs of immune mechanisms. In rare cases, this diversity has been harnessed and successfully transferred to other species by integration of wild immune receptors or engineering of novel forms of receptors for improved resistance to pathogens. We propose that exploring further the diversity of immune mechanisms in the whole plant lineage will reveal completely novel sources of resistance to be deployed in crops.
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Affiliation(s)
- Baptiste Castel
- Laboratoire de Recherche en Sciences Végétales (LRSV), Université de Toulouse, CNRS, UPS, Toulouse INP, Castanet-Tolosan, France
| | - Karima El Mahboubi
- Laboratoire de Recherche en Sciences Végétales (LRSV), Université de Toulouse, CNRS, UPS, Toulouse INP, Castanet-Tolosan, France
| | - Christophe Jacquet
- Laboratoire de Recherche en Sciences Végétales (LRSV), Université de Toulouse, CNRS, UPS, Toulouse INP, Castanet-Tolosan, France
| | - Pierre-Marc Delaux
- Laboratoire de Recherche en Sciences Végétales (LRSV), Université de Toulouse, CNRS, UPS, Toulouse INP, Castanet-Tolosan, France.
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Wawrzyniak R, Guzowska M, Wasiak W, Jasiewicz B, Bączkiewicz A, Buczkowska K. Seasonal Variability of Volatile Components in Calypogeia integristipula. Molecules 2023; 28:7276. [PMID: 37959695 PMCID: PMC10649560 DOI: 10.3390/molecules28217276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Revised: 10/21/2023] [Accepted: 10/25/2023] [Indexed: 11/15/2023] Open
Abstract
Liverworts contain a large number of biologically active compounds that are synthesised and stored in their oil bodies. However, knowledge about the chemical composition of individual species is still incomplete. The subject of the study was Calypogeia integristipula, a species representing leafy liverworts. Plant material for chemotaxonomic studies was collected from various locations in Poland. The chemical composition was determined in 74 samples collected from the natural environment in 2021 and 2022 in three growing seasons: spring, summer and autumn, and for comparison with samples originating from in vitro culture. The plants were classified as Calypogeia integristipula on the basis of morphological characteristics, oil bodies, and DNA markers. The volatile organic compounds (VOCs) from the biological material were extracted by headspace solid phase microextraction (HS-SPME). The samples were then analysed by gas chromatography-mass spectrometry (GC-MS). A total of 79 compounds were detected, of which 44 compounds were identified. The remaining compounds were described using the MS fragmentation spectrum. Cyclical changes in the composition of compounds associated with the growing season of Calypogeia integristipula were observed. Moreover, samples from in vitro culture and samples taken from the natural environment were shown to differ in the composition of chemical compounds. In terms of quantity, among the volatile compounds, compounds belonging to the sesquiterpene group (46.54-71.19%) and sesqiuterpenoid (8.12-22.11%) dominate. A smaller number of compounds belong to aromatic compounds (2.30-10.96%), monoterpenes (0.01-0.07%), monoterpenoids (0.02-0.33%), and aliphatic hydrocarbons (1.11-6.12%). The dominant compounds in the analysed liverworts were: anastreptene (15.27-31.14%); bicyclogermacrene (6.99-18.09%), 4,5,9,10-dehydro-isolongifolene (2.00-8.72%), palustrol (4.95-9.94%), spathulenol (0.44-5.11%).
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Affiliation(s)
- Rafał Wawrzyniak
- Faculty of Chemistry, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland; (M.G.); (W.W.); (B.J.)
| | - Małgorzata Guzowska
- Faculty of Chemistry, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland; (M.G.); (W.W.); (B.J.)
| | - Wiesław Wasiak
- Faculty of Chemistry, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland; (M.G.); (W.W.); (B.J.)
| | - Beata Jasiewicz
- Faculty of Chemistry, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland; (M.G.); (W.W.); (B.J.)
| | - Alina Bączkiewicz
- Faculty of Biology, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 6, 61-614 Poznań, Poland; (A.B.); (K.B.)
| | - Katarzyna Buczkowska
- Faculty of Biology, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 6, 61-614 Poznań, Poland; (A.B.); (K.B.)
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Haroon M, Zahoor AF, Ahmad S, Mansha A, Irfan M, Mushtaq A, Akhtar R, Irfan A, Kotwica-Mojzych K, Mojzych M. The Corey-Seebach Reagent in the 21st Century: A Review. Molecules 2023; 28:molecules28114367. [PMID: 37298842 DOI: 10.3390/molecules28114367] [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: 04/11/2023] [Revised: 05/22/2023] [Accepted: 05/22/2023] [Indexed: 06/12/2023] Open
Abstract
The Corey-Seebach reagent plays an important role in organic synthesis because of its broad synthetic applications. The Corey-Seebach reagent is formed by the reaction of an aldehyde or a ketone with 1,3-propane-dithiol under acidic conditions, followed by deprotonation with n-butyllithium. A large variety of natural products (alkaloids, terpenoids, and polyketides) can be accessed successfully by utilizing this reagent. This review article focuses on the recent contributions (post-2006) of the Corey-Seebach reagent towards the total synthesis of natural products such as alkaloids (lycoplanine A, diterpenoid alkaloids, etc.), terpenoids (bisnorditerpene, totarol, etc.), polyketide (ambruticin J, biakamides, etc.), and heterocycles such as rodocaine and substituted pyridines, as well and their applications towards important organic synthesis.
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Affiliation(s)
- Muhammad Haroon
- Medicinal Chemistry Research Lab, Department of Chemistry, Government College University Faisalabad, Faisalabad 38000, Pakistan
| | - Ameer Fawad Zahoor
- Medicinal Chemistry Research Lab, Department of Chemistry, Government College University Faisalabad, Faisalabad 38000, Pakistan
| | - Sajjad Ahmad
- Department of Chemistry, University of Engineering and Technology Lahore, Faisalabad Campus, Faisalabad 38000, Pakistan
| | - Asim Mansha
- Medicinal Chemistry Research Lab, Department of Chemistry, Government College University Faisalabad, Faisalabad 38000, Pakistan
| | - Muhammad Irfan
- Department of Pharmaceutics, Government College University Faisalabad, Faisalabad 38000, Pakistan
| | - Aqsa Mushtaq
- Medicinal Chemistry Research Lab, Department of Chemistry, Government College University Faisalabad, Faisalabad 38000, Pakistan
| | - Rabia Akhtar
- Medicinal Chemistry Research Lab, Department of Chemistry, Government College University Faisalabad, Faisalabad 38000, Pakistan
- Department of Chemistry, Superior University, Faisalabad 38000, Pakistan
| | - Ali Irfan
- Medicinal Chemistry Research Lab, Department of Chemistry, Government College University Faisalabad, Faisalabad 38000, Pakistan
| | - Katarzyna Kotwica-Mojzych
- Laboratory of Experimental Cytology, Medical University of Lublin, Radziwiłłowska 11, 20-080 Lublin, Poland
| | - Mariusz Mojzych
- Department of Chemistry, Siedlce University of Natural Sciences and Humanities, 3-Go Maja 54, 08-110 Siedlce, Poland
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Discovery and Anticancer Activity of the Plagiochilins from the Liverwort Genus Plagiochila. Life (Basel) 2023; 13:life13030758. [PMID: 36983914 PMCID: PMC10058164 DOI: 10.3390/life13030758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 03/04/2023] [Accepted: 03/09/2023] [Indexed: 03/16/2023] Open
Abstract
The present analysis retraces the discovery of plagiochilins A-to-W, a series of seco-aromadendrane-type sesquiterpenes isolated from diverse leafy liverworts of the genus Plagiochila. Between 1978, with the first isolation of the leader product plagiochilin A from P. yokogurensis, and 2005, with the characterization of plagiochilin X from P. asplenioides, a set of 24 plagiochilins and several derivatives (plagiochilide, plagiochilal A-B) has been isolated and characterized. Analogue compounds recently described are also evoked, such as the plagiochianins and plagicosins. All these compounds have been little studied from a pharmacological viewpoint. However, plagiochilins A and C have revealed marked antiproliferative activities against cultured cancer cells. Plagiochilin A functions as an inhibitor of the termination phase of cytokinesis: the membrane abscission stage. This unique, innovative mechanism of action, coupled with its marked anticancer action, notably against prostate cancer cells, make plagiochilin A an interesting lead molecule for the development of novel anticancer agents. There are known options to increase its potency, as deduced from structure–activity relationships. The analysis shed light on this family of bryophyte species and the little-known group of bioactive terpenoid plagiochilins. Plagiochilin A and derivatives shall be further exploited for the design of novel anticancer targeting the cytokinesis pathway.
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First Phytochemical Profiling and In-Vitro Antiprotozoal Activity of Essential Oil and Extract of Plagiochila porelloides. MOLECULES (BASEL, SWITZERLAND) 2023; 28:molecules28020616. [PMID: 36677674 PMCID: PMC9860869 DOI: 10.3390/molecules28020616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 12/22/2022] [Accepted: 01/04/2023] [Indexed: 01/11/2023]
Abstract
Volatiles metabolites from the liverwort Plagiochila porelloides harvested in Corsica were investigated by chromatographic and spectroscopic methods. In addition to already reported constituents, three new compounds were isolated by preparative chromatography and their structures were elucidated by mass spectrometry (MS) and NMR experiments. Hence, an atypic aliphatic compound, named 1,2-dihydro-4,5-dehydronerolidol and two isomers, (E) and (Z), possessing an unusual humbertiane skeleton (called p-menth-1-en-3-[2-methylbut-1-enyl]-8-ol) are newly reported and fully characterized in this work. The in vitro antiprotozoal activity of essential oil and extract of P. porelloides against Trypanosoma brucei brucei and Leishmania mexicana mexicana and cytotoxicity were determined. Essential oil and Et2O extract showed a moderate activity against T. brucei with IC50 values: 2.03 and 5.18 μg/mL, respectively. It is noteworthy that only the essential oil showed a high selectivity (SI = 11.7). Diethyl oxide extract exhibited moderate anticancer (cancerous macrophage-like murine cells) activity and also cytotoxicity (human normal fibroblast) with IC50 values: 1.25 and 2.96 μg/mL, respectively.
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Yang P, Jia Q, Song S, Huang X. [2 + 2]-Cycloaddition-derived cyclobutane natural products: structural diversity, sources, bioactivities, and biomimetic syntheses. Nat Prod Rep 2023. [DOI: 10.1039/d2np00034b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
This review summarizes the structural diversity, bioactivities, and biomimetic synthesis of [2 + 2]-type cyclobutane natural products, along with discussion of their biosynthesis, stereochemical analysis, racemic occurrence, and biomimetic synthesis.
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Affiliation(s)
- Peiyuan Yang
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning Province; Engineering Research Center of Natural Medicine Active Molecule Research & Development, Liaoning Province; Key Laboratory of Natural Bioactive Compounds Discovery & Modification, Shenyang; School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China
| | - Qi Jia
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning Province; Engineering Research Center of Natural Medicine Active Molecule Research & Development, Liaoning Province; Key Laboratory of Natural Bioactive Compounds Discovery & Modification, Shenyang; School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China
| | - Shaojiang Song
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning Province; Engineering Research Center of Natural Medicine Active Molecule Research & Development, Liaoning Province; Key Laboratory of Natural Bioactive Compounds Discovery & Modification, Shenyang; School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China
| | - Xiaoxiao Huang
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning Province; Engineering Research Center of Natural Medicine Active Molecule Research & Development, Liaoning Province; Key Laboratory of Natural Bioactive Compounds Discovery & Modification, Shenyang; School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China
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Wang X, Qian L, Qiao Y, Jin X, Zhou J, Yuan S, Zhang J, Zhang C, Lou H. Cembrane-type diterpenoids from the Chinese liverwort Chandonanthus birmensis. PHYTOCHEMISTRY 2022; 203:113376. [PMID: 36029845 DOI: 10.1016/j.phytochem.2022.113376] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 08/05/2022] [Accepted: 08/13/2022] [Indexed: 06/15/2023]
Abstract
A chemical investigation of the Chinese liverwort Chandonanthus birmensis Steph identified five undescribed cembrane-type diterpenoids, together with six known cembrane diterpenes, one fusicoccane-type diterpenoid, and a dolabellane-type diterpenoid. Their structures were established by comprehensive analysis of HRESIMS, NMR spectroscopic data, electronic circular dichroism (ECD) calculations and single-crystal X-ray diffraction analysis. Cytotoxicity tests of the isolated diterpenoids against five cancer cell lines (A2780, A549, H460, H460RT, and HeLa) revealed that several compounds showed moderate inhibitory effects with IC50 values ranging from 11.1 to 36.2 μM.
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Affiliation(s)
- Xue Wang
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, Jinan, 250012, China.
| | - Lilin Qian
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, Jinan, 250012, China
| | - Yanan Qiao
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, Jinan, 250012, China
| | - Xueyang Jin
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, Jinan, 250012, China
| | - Jinchuan Zhou
- School of Pharmacy, Linyi University, Linyi, 276000, China
| | - Shuangzhi Yuan
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, Jinan, 250012, China
| | - Jiaozhen Zhang
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, Jinan, 250012, China
| | - Chunyang Zhang
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, Jinan, 250012, China
| | - Hongxiang Lou
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, Jinan, 250012, China.
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Faleva AV, Ul’yanovskii NV, Falev DI, Onuchina AA, Budaev NA, Kosyakov DS. New Oligomeric Dihydrochalcones in the Moss Polytrichum commune: Identification, Isolation, and Antioxidant Activity. Metabolites 2022; 12:metabo12100974. [PMID: 36295876 PMCID: PMC9607112 DOI: 10.3390/metabo12100974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Revised: 10/06/2022] [Accepted: 10/13/2022] [Indexed: 11/29/2022] Open
Abstract
One of the most widespread representatives of mosses in the temperate and boreal latitudes of the Northern Hemisphere is common haircap (Polytrichum commune), which is known as the largest moss in the world and widely used in traditional herbal medicine. Polyphenolic compounds constitute one of the most important groups of biologically active secondary metabolites of P. commune, however, the available information on their chemical composition is still incomplete and contradictory. In the present study, a group of dihydrochalcone polyphenolic derivatives that were not previously found in mosses was isolated from P. commune biomass using pressurized liquid extraction with aqueous acetone. The combination of two-dimensional NMR spectroscopy and high-performance liquid chromatography-high-resolution mass spectrometry allowed for identifying them as 3-hydroxyphloretin oligomers formed through a carbon-carbon bond between phloroglucinol and pyrocatechol moieties ("head-to-tail" coupling), with a polymerization degree of 2-5. The individual compounds isolated by preparative reverse-phase HPLC had a purity of 71 to 97% and demonstrated high radical scavenging activity (17.5-42.5% with respect to Trolox) determined by the photochemiluminescence method. Along with the low toxicity predicted by QSAR/QSTR algorithms, this makes 3-hydroxyphloretin oligomers a promising source for the production of biologically active food additives and pharmaceuticals.
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Tissue Culture of Plagiochasma appendiculatum and the Effect of Callus Differentiation on Types and Content of Bisbibenzyls. Nat Prod Commun 2022. [DOI: 10.1177/1934578x221106243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Plagiochasma appendiculatum, a thalloid liverwort, contains high levels of bisbibenzyls, aromatic compounds with potent antitumor as well as antifungal activities. In the present study, rapid growth callus was induced from the thallus of P. appendiculatum, and optimal culture conditions, including medium, temperature, pH, and plant growth regulators for callus production were evaluated. Under optimal culture conditions, the biomass of the callus doubled with a sigmoidal growth curve after 15 days. Differentiation and plant regeneration were studied on a medium supplemented with different plant hormones (α-naphthaleneacetic acid [NAA], 6-benzyladenine [6-BA], and 2,4-dichlorophenoxyacetic acid [2,4-D]). NAA and 6-BA stimulated rhizoid and thallus differentiation, respectively, whereas 2,4-D inhibited the differentiation of thallus and rhizoid. Different metabolic profiles of callus, differentiated thallus, and thallus in the soil were studied by high-performance liquid chromatography. The results showed that both the callus and thallus could synthesize bisbibenzyls. In addition, the kinds and content of bisbibenzyl differed significantly between the callus and thallus. In conclusion, P. appendiculatum thallus cultured in vitro possesses the ability to biosynthesize bisbibenzyl, and it may be utilized for the mass production of specific bisbibenzyls in an appropriate growth environment.
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Zhang CY, Zhou JC, Lou HX. Prenylated bibenzyls from the Chinese liverwort Radula apiculata. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2022; 24:803-809. [PMID: 34662246 DOI: 10.1080/10286020.2021.1982908] [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: 03/26/2021] [Accepted: 09/14/2021] [Indexed: 06/13/2023]
Abstract
Three new prenylated bibenzyls (1-3) and seven known congeners were purified from the Chinese liverwort Radula apiculata. Their structures were identified by the analysis of spectroscopic data and comparison of reported NMR data. All isolated compounds were tested for several human cancer cell lines with adriamycin served as a positive control.
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Affiliation(s)
- Chun-Yang Zhang
- Department of Natural Products Chemistry, Key Laboratory of Chemical Biology of the Ministry of Education, Shandong University, Jinan 250012, China
| | - Jin-Chuan Zhou
- School of Pharmacy, Linyi University, Linyi 276000, China
| | - Hong-Xiang Lou
- Department of Natural Products Chemistry, Key Laboratory of Chemical Biology of the Ministry of Education, Shandong University, Jinan 250012, China
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14
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Asakawa Y, Ludwiczuk A, Novakovic M, Bukvicki D, Anchang KY. Bis-bibenzyls, Bibenzyls, and Terpenoids in 33 Genera of the Marchantiophyta (Liverworts): Structures, Synthesis, and Bioactivity. JOURNAL OF NATURAL PRODUCTS 2022; 85:729-762. [PMID: 34783552 DOI: 10.1021/acs.jnatprod.1c00302] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
The Marchantiophyta (liverworts) are rich sources of phenolic substances, especially cyclic and acyclic bis-bibenzyls, which are rare natural products in the plant kingdom, together with bibenzyls and characteristic terpenoids. At present, more than 125 bis-bibenzyls have been found in liverworts. They are biosynthesized from the dimerization of lunularic acid via dihydrocoumaric acid and prelunularin. The structurally unusual cyclic and acyclic bis-bibenzyls show various biological activities such as antimicrobial, antifungal, cytotoxic, muscle relaxation, antioxidant, tubulin polymerization inhibitory, and antitrypanosomal activities, among others. The present review article deals with the distribution and structure of bis-bibenzyls, bibenzyls, and several characteristic ent-sesqui- and diterpenoids in liverworts. Furthermore, the biosynthesis and total syntheses and biological activities of bis-bibenzyls are also surveyed.
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Affiliation(s)
- Yoshinori Asakawa
- Institute of Pharmacognosy, Tokushima Bunri University, Yamashiro-cho, Tokushima 770-8514, Japan
| | - Agnieszka Ludwiczuk
- Department of Pharmacognosy with Medicinal Plants Garden, Medical University of Lublin, 1 Chodzki Street, 20-093 Lublin, Poland
| | | | | | - Kenneth Yongabi Anchang
- Tropical Infectious Diseases and Public Health Engineering Research Group, Phytobiotechnology Research Foundation Institute, Catholic University of Cameroon, P.O. Box 921, Bamenda, Cameroon
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15
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Zhu M, Li Y, Zhou J, Wang T, Li X, Zhang J, Qiao Y, Han J, Xu Z, Lou H. Pinguisane Sesquiterpenoids from the Chinese Liverwort Trocholejeunea sandvicensis and Their Anti-Inflammatory Activity. JOURNAL OF NATURAL PRODUCTS 2022; 85:205-214. [PMID: 34961313 DOI: 10.1021/acs.jnatprod.1c00964] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Nine new pinguisane sesquiterpenoid compounds, 1-9, including a highly oxygenated compound (1) and two amides (7 and 8), along with three known compounds (10, 11, and 12), were isolated from the Chinese liverwort Trocholejeunea sandvicensis Mizut (Lejeuneaceae). The structures of these compounds were determined by analysis of IR, UV, HRESIMS, NMR spectroscopic data, electronic circular dichroism calculations, and single-crystal X-ray diffraction analysis. Inhibitory effects against lipopolysaccharide (LPS)-induced NO production in RAW 264.7 murine macrophages indicated that the maximum inhibition rates of NO production of compounds 1, 9, and 10 were 83.15%, 83.54%, and 96.28% under the nontoxic tested concentration, respectively. Compound 9 also displayed moderate anti-inflammatory activity in vivo in a CuSO4-induced transgenic zebrafish model.
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Affiliation(s)
- Mingzhu Zhu
- Department of Natural Products Chemistry, Key Lab of Chemical Biology of the Ministry of Education, Shandong University, Jinan 250012, People's Republic of China
| | - Yi Li
- Department of Natural Products Chemistry, Key Lab of Chemical Biology of the Ministry of Education, Shandong University, Jinan 250012, People's Republic of China
| | - Jinchuan Zhou
- School of Pharmacy, Linyi University, Linyi 27600, People's Republic of China
| | - Tian Wang
- Department of Natural Products Chemistry, Key Lab of Chemical Biology of the Ministry of Education, Shandong University, Jinan 250012, People's Republic of China
| | - Xiaobin Li
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250103, People's Republic of China
| | - Jiaozhen Zhang
- Department of Natural Products Chemistry, Key Lab of Chemical Biology of the Ministry of Education, Shandong University, Jinan 250012, People's Republic of China
| | - Yanan Qiao
- Department of Natural Products Chemistry, Key Lab of Chemical Biology of the Ministry of Education, Shandong University, Jinan 250012, People's Republic of China
| | - Jingjing Han
- Department of Natural Products Chemistry, Key Lab of Chemical Biology of the Ministry of Education, Shandong University, Jinan 250012, People's Republic of China
| | - Zejun Xu
- Department of Natural Products Chemistry, Key Lab of Chemical Biology of the Ministry of Education, Shandong University, Jinan 250012, People's Republic of China
| | - Hongxiang Lou
- Department of Natural Products Chemistry, Key Lab of Chemical Biology of the Ministry of Education, Shandong University, Jinan 250012, People's Republic of China
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16
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Fan H, Wei G, Chen X, Guo H, Crandall-Stotler B, Köllner TG, Chen F. Sesquiterpene biosynthesis in a leafy liverwort Radula lindenbergiana Gottsche ex C. Hartm. PHYTOCHEMISTRY 2021; 190:112847. [PMID: 34237478 DOI: 10.1016/j.phytochem.2021.112847] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 06/14/2021] [Accepted: 06/15/2021] [Indexed: 06/13/2023]
Abstract
Liverworts (Marchantiophyta) are among the earliest diverging lineages of extant land plants. Among their unique features, most liverworts contain membrane-bound oil bodies, organelles that accumulate diverse secondary metabolites, especially terpenoids. In contrast to the rich information on liverwort terpenoid chemistry, little is known about their biosynthesis. Recently, terpenoid biosynthesis was studied in a model thalloid species Marchantiapolymorpha, in which sesquiterpenes and monoterpenes are biosynthesized by a new type of terpene synthases termed microbial terpene synthase-like (MTPSL) proteins. Here we study terpenoid biosynthesis in a leafy liverwort Radula lindenbergiana. Vegetative plants of R.lindenbergiana were found to contain a mixture of sesquiterpenes, with (E,E)-α-farnesene/β-curcumene and (Z)-β-bisabolene being the most abundant constituents. From the analysis of the R. lindenbergiana transcriptome, five full-length MTPSL genes were identified. They were designated RlMTPSL1-5, respectively. Recombinant RlMTPSL proteins were produced in Escherichia coli and tested for sesquiterpene synthase activities using farnesyl diphosphate (FPP) as substrate. All except RlMTPSL5 were demonstrated to catalyze the formation of different sesquiterpenes. RlMTPSL1 produced multiple sesquiterpenes with eremophilene and an unidentified sesquiterpene as major products. The major products of RlMTPSL2 and RlMTPSL3 were β-elemene and an unidentified sesquiterpene, respectively. RlMTPSL4 was also a multi-product sesquiterpene synthase with an unidentified sesquiterpene being the major product. Homology-based structural modeling was performed to understand the structural basis underlying different product profiles of the RlMTPSLs proteins. Most of the sesquiterpene products of the four active RlMTPSLs were also detected in R. lindenbergiana plants. Expression levels of the four RlMTPSL genes encoding active enzymes in vegetative plants were compared. In phylogenetic analysis, RlMTPSL genes were found to cluster together, indicating lineage-specific expansion of MTPSL genes in lineages leading to R.lindenbergiana and M. polymorpha. This study strengthens evidence for the contribution of MTPSL genes to terpenoid biosynthesis in liverworts.
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Affiliation(s)
- Honghong Fan
- Department of Plant Sciences, University of Tennessee, Knoxville, TN, 37996, USA; School of Life Sciences, Anhui Agricultural University, Hefei, 230036, China
| | - Guo Wei
- Department of Plant Sciences, University of Tennessee, Knoxville, TN, 37996, USA
| | - Xinlu Chen
- Department of Plant Sciences, University of Tennessee, Knoxville, TN, 37996, USA
| | - Hong Guo
- Department of Biochemistry & Cellular and Molecular Biology, University of Tennessee, Knoxville, TN, 37996, USA
| | | | - Tobias G Köllner
- Department of Biochemistry, Max-Planck-Institute for Chemical Ecology, Hans-Knöll Str. 8, D-07745, Jena, Germany
| | - Feng Chen
- Department of Plant Sciences, University of Tennessee, Knoxville, TN, 37996, USA.
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17
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Han J, Li Y, Zhou J, Zhang J, Qiao Y, Fang K, Zhang C, Zhu M, Lou H. Terpenoids from Chinese Liverworts Scapania spp. JOURNAL OF NATURAL PRODUCTS 2021; 84:1210-1215. [PMID: 33677971 DOI: 10.1021/acs.jnatprod.0c01284] [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
An investigation of the chemical composition of Chinese liverworts led to the isolation of six new caged clerodane-type diterpenoids, scaparins A-C (1-3) from Scapania koponenii and scaparins D-F (4-6) from S. verrucosa. An unknown ent-trachylobane diterpenoid (7) and three known terpenoid derivatives (8-10) were obtained from S. verrucosa. The structures of the compounds were established on the basis of physical data (IR, UV, HRESIMS, and 1D and 2D NMR), and the absolute configurations were unequivocally confirmed by comparison of the experimental and calculated electronic circular dichroism spectra. Preliminary bioassays showed that compounds 1-7 exhibited moderate to weak quinone reductase-inducing activity in Hepa-1c1c7 cells.
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Affiliation(s)
- Jingjing Han
- Department of Natural Products Chemistry, Key Lab of Chemical Biology of the Ministry of Education, Shandong University, Jinan 250012, People's Republic of China
| | - Yi Li
- Department of Natural Products Chemistry, Key Lab of Chemical Biology of the Ministry of Education, Shandong University, Jinan 250012, People's Republic of China
| | - Jinchuan Zhou
- School of Pharmacy, Linyi University, Linyi 27600, People's Republic of China
| | - Jiaozhen Zhang
- Department of Natural Products Chemistry, Key Lab of Chemical Biology of the Ministry of Education, Shandong University, Jinan 250012, People's Republic of China
| | - Yanan Qiao
- Department of Natural Products Chemistry, Key Lab of Chemical Biology of the Ministry of Education, Shandong University, Jinan 250012, People's Republic of China
| | - Kaili Fang
- Department of Natural Products Chemistry, Key Lab of Chemical Biology of the Ministry of Education, Shandong University, Jinan 250012, People's Republic of China
| | - Chunyang Zhang
- Department of Natural Products Chemistry, Key Lab of Chemical Biology of the Ministry of Education, Shandong University, Jinan 250012, People's Republic of China
| | - Mingzhu Zhu
- Department of Natural Products Chemistry, Key Lab of Chemical Biology of the Ministry of Education, Shandong University, Jinan 250012, People's Republic of China
| | - Hongxiang Lou
- Department of Natural Products Chemistry, Key Lab of Chemical Biology of the Ministry of Education, Shandong University, Jinan 250012, People's Republic of China
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18
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Ludwiczuk A, Asakawa Y. Chemical Diversity of Liverworts From Frullania Genus. Nat Prod Commun 2021. [DOI: 10.1177/1934578x21995381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Frullania is one of the largest and taxonomically most complex genus of leafy liverworts. Current morphology-based estimates of Frullania diversity are close to 400 species; however, species level-classification of Frullania has been regarded notoriously difficult and subject to many studies. The liverworts classified in this genus have been studied using morphological evidence and molecular markers but also in terms of secondary metabolite composition. Up to now 98 Frullania species have been chemically investigated. As a result, it is known that Frullania species are characterized by a remarkable chemical diversity. The most characteristic compounds present in this liverwort genus are sesquiterpene lactones with eudesamnolides as the most diverse group, and aromatic compounds belonging to bibenzyls. In this review paper we report the distribution of secondary metabolites in all chemically investigated Frullania species and discuss some aspects concerning the division of this genus into chemotypes.
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Affiliation(s)
- Agnieszka Ludwiczuk
- Independent Laboratory of Natural Products Chemistry, Department of Pharmacognosy, Medical University of Lublin, Lublin, Poland
| | - Yoshinori Asakawa
- Institute of Pharmacognosy, Tokushima Bunri University, Tokushima, Japan
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19
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Wawrzyniak R, Wasiak W, Jasiewicz B, Bączkiewicz A, Buczkowska K. Chemical Fingerprinting of Cryptic Species and Genetic Lineages of Aneura pinguis (L.) Dumort. (Marchantiophyta, Metzgeriidae). Molecules 2021; 26:molecules26041180. [PMID: 33671838 PMCID: PMC7926491 DOI: 10.3390/molecules26041180] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Revised: 02/11/2021] [Accepted: 02/19/2021] [Indexed: 11/16/2022] Open
Abstract
Aneura pinguis (L.) Dumort. is a representative of the simple thalloid liverworts, one of the three main types of liverwort gametophytes. According to classical taxonomy, A. pinguis represents one morphologically variable species; however, genetic data reveal that this species is a complex consisting of 10 cryptic species (named by letters from A to J), of which four are further subdivided into two or three evolutionary lineages. The objective of this work was to develop an efficient method for the characterisation of plant material using marker compounds. The volatile chemical constituents of cryptic species within the liverwort A. pinguis were analysed by GC-MS. The compounds were isolated from plant material using the HS-SPME technique. Of the 66 compounds examined, 40 were identified. Of these 40 compounds, nine were selected for use as marker compounds of individual cryptic species of A. pinguis. A guide was then developed that clarified how these markers could be used for the rapid identification of the genetic lineages of A. pinguis. Multivariate statistical analyses (principal component and cluster analysis) revealed that the chemical compounds in A. pinguis made it possible to distinguish individual cryptic species (including genetic lineages), with the exception of cryptic species G and H. The classification of samples based on the volatile compounds by cluster analysis reflected phylogenetic relationships between cryptic species and genetic lineages of A. pinguis revealed based on molecular data.
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Affiliation(s)
- Rafał Wawrzyniak
- Faculty of Chemistry, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland; (W.W.); (B.J.)
- Correspondence: ; Tel.: +48-61-829-1713
| | - Wiesław Wasiak
- Faculty of Chemistry, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland; (W.W.); (B.J.)
| | - Beata Jasiewicz
- Faculty of Chemistry, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland; (W.W.); (B.J.)
| | - Alina Bączkiewicz
- Faculty of Biology, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 6, 61-614 Poznań, Poland; (A.B.); (K.B.)
| | - Katarzyna Buczkowska
- Faculty of Biology, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 6, 61-614 Poznań, Poland; (A.B.); (K.B.)
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20
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Métoyer B, Benatrehina A, Rakotondraibe LH, Thouvenot L, Asakawa Y, Nour M, Raharivelomanana P. Dimeric and esterified sesquiterpenes from the liverwort Chiastocaulon caledonicum. PHYTOCHEMISTRY 2020; 179:112495. [PMID: 32847771 DOI: 10.1016/j.phytochem.2020.112495] [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: 02/23/2020] [Revised: 07/31/2020] [Accepted: 08/14/2020] [Indexed: 06/11/2023]
Abstract
This is the first chemical investigation of Chiastocaulon caledonicum, an endemic liverwort from New Caledonia. We herein present the isolation of thirteen compounds including seven undescribed sesquiterpenoids, namely four barbatane- and three myltaylane-type sesquiterpenes. The structures of these compounds were elucidated based on the interpretation of their chemical and spectroscopic/spectrometric data. Chiastocaulins A and B are the first examples of dimers based on two myltaylane units. The chemotaxonomic importance and the biosynthesis of the chiastocaulin structure are discussed. Terpenoid dimers formed via a Diels-Alder cyclization are thought to be specific to the Plagiochilaceae family.
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Affiliation(s)
- Benjamin Métoyer
- Institut des Sciences Exactes et Appliquées (ISEA), Université de la Nouvelle-Calédonie, Nouméa, 98851, New Caledonia; Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Tokushima, 7708514, Japan.
| | - Annecie Benatrehina
- Division of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, The Ohio State University, Columbus, OH, 43210, USA.
| | - L Harinantenaina Rakotondraibe
- Division of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, The Ohio State University, Columbus, OH, 43210, USA.
| | | | - Yoshinori Asakawa
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Tokushima, 7708514, Japan.
| | - Mohammed Nour
- Institut des Sciences Exactes et Appliquées (ISEA), Université de la Nouvelle-Calédonie, Nouméa, 98851, New Caledonia.
| | - Phila Raharivelomanana
- Univ. Polynésie Française, IFREMER, ILM, IRD, EIO UMR 241, BP 6570, F-98702, Faaa, Tahiti, French Polynesia.
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21
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Almalki FA, Sun W, Light ME, Harrowven DC. Total synthesis of polymorphatin A, a macrocyclic bisbibenzyl with boat configured arenes. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.131521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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22
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Qiao YN, Jin XY, Zhou JC, Zhang JZ, Chang WQ, Li Y, Chen W, Ren ZJ, Zhang CY, Yuan SZ, Lou HX. Terpenoids from the Liverwort Plagiochila fruticosa and Their Antivirulence Activity against Candida albicans. JOURNAL OF NATURAL PRODUCTS 2020; 83:1766-1777. [PMID: 32479076 DOI: 10.1021/acs.jnatprod.9b00895] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Fourteen new terpenoids plagicosins A-N (1-14), including seven sesquiterpenoids (1-7) consisting of six ent-bicyclogermacrenes and one ent-2,3-seco-aromadendrane, as well as seven diterpenoids (8-14) comprising five fusicoccanes, a eunicellane, and a rare gersemiane, were isolated from the Chinese liverwort Plagiochila fruticosa Mitt. The structures of these terpenoids were determined on the basis of comprehensive analysis of MS and NMR spectroscopic data coupled with electronic circular dichroism (ECD) and coupling constant calculations. Plagicosin F (6) displayed potent antivirulence activity through inhibiting the hyphal morphogenesis, adhesion, and biofilm formation of Candida albicans. The genes related to hyphal formation were regulated by 6.
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Affiliation(s)
- Ya-Nan Qiao
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, Jinan 250012, People's Republic of China
| | - Xue-Yang Jin
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, Jinan 250012, People's Republic of China
| | - Jin-Chuan Zhou
- School of Pharmacy, Linyi University, Linyi 276000, People's Republic of China
| | - Jiao-Zhen Zhang
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, Jinan 250012, People's Republic of China
| | - Wen-Qiang Chang
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, Jinan 250012, People's Republic of China
| | - Yi Li
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, Jinan 250012, People's Republic of China
| | - Wang Chen
- Vitamin D Research Institute, Shaanxi University of Technology, Hanzhong 723000, People's Republic of China
| | - Zhao-Jie Ren
- Nature Department, Shandong Museum, Jinan 250014, People's Republic of China
| | - Chun-Yang Zhang
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, Jinan 250012, People's Republic of China
| | - Shuang-Zhi Yuan
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, Jinan 250012, People's Republic of China
| | - Hong-Xiang Lou
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, Jinan 250012, People's Republic of China
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23
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Csupor D, Kurtán T, Vollár M, Kúsz N, Kövér KE, Mándi A, Szűcs P, Marschall M, Senobar Tahaei SA, Zupkó I, Hohmann J. Pigments of the Moss Paraleucobryum longifolium: Isolation and Structure Elucidation of Prenyl-Substituted 8,8'-Linked 9,10-Phenanthrenequinone Dimers. JOURNAL OF NATURAL PRODUCTS 2020; 83:268-276. [PMID: 32077277 PMCID: PMC7316407 DOI: 10.1021/acs.jnatprod.9b00655] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
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In a search for new secondary metabolites from mosses, leucobryns
A–E, axially chiral 9,10-phenanthrenequinone dimers, were isolated
from Paraleucobryum longifolium (1–5), together with diosmetin triglycoside. Leucobryns B (2) and C (3) were proved to be homodimeric atropodiastereomers
containing both axial and central chirality elements, while leucobryns
D (4) and E (5) were found to be heterodimeric
atropodiastereomers containing central chirality in only one of the
two monomeric units. Axial chirality of the compounds was determined
by ECD measurements and sTDA ECD calculations, while the central chirality
elements were assigned by TDDFT-SOR calculations. Leucobryns represent
the first 9,10-phenanthrenequinone dimers, the monomers of which are
linked through their C-8 atoms. Leucobryns B–E contain an uncommon
C10 monoterpenoid side chain, in which isoprenoid units
are joined by 3,4 linkages. Leucobryns A and B exhibited weak antiproliferative
activity against several human cancer cell lines.
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Affiliation(s)
| | | | | | | | | | | | - Péter Szűcs
- Department of Botany and Plant Physiology, Institute of Biology , Eszterházy Károly University , Eszterházy tér 1 , H-3300 Eger , Hungary
| | - Marianna Marschall
- Department of Botany and Plant Physiology, Institute of Biology , Eszterházy Károly University , Eszterházy tér 1 , H-3300 Eger , Hungary
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24
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Zhang CY, Gao Y, Zhu RX, Qiao YN, Zhou JC, Zhang JZ, Li Y, Li SW, Fan SH, Lou HX. Prenylated Bibenzyls from the Chinese Liverwort Radula constricta and Their Mitochondria-Derived Paraptotic Cytotoxic Activities. JOURNAL OF NATURAL PRODUCTS 2019; 82:1741-1751. [PMID: 31268321 DOI: 10.1021/acs.jnatprod.8b00897] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Nine new prenylated bibenzyls, radstrictins A-I (1-9), and 11 known congeners were obtained from the Chinese liverwort Radula constricta. Their structures were identified by analysis of HRMS, NMR, and electronic circular dichroism data. Radstrictins A-F (1-6) were isolated as a racemate or scalemic mixtures. All the isolated compounds were subjected to cytotoxicity assessment. Methyl 2,4-dihydroxy-3-(3-methyl-2-butenyl)-6-phenethylbenzoate (10) exhibited significant activity against human lung cancer cell lines A549 and NCI-H1299 with IC50 values of 6.0 and 5.1 μM, respectively. Further research revealed that cell death triggered by 10 occurred via mitochondria-derived paraptosis.
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Affiliation(s)
- Chun-Yang Zhang
- Department of Natural Products Chemistry, Key Lab of Chemical Biology of the Ministry of Education , Shandong University , Jinan 250012 , People's Republic of China
| | - Yun Gao
- Department of Natural Products Chemistry, Key Lab of Chemical Biology of the Ministry of Education , Shandong University , Jinan 250012 , People's Republic of China
| | - Rong-Xiu Zhu
- School of Chemistry and Chemical Engineering , Shandong University , Jinan 250010 , People's Republic of China
| | - Ya-Nan Qiao
- Department of Natural Products Chemistry, Key Lab of Chemical Biology of the Ministry of Education , Shandong University , Jinan 250012 , People's Republic of China
| | - Jin-Chuan Zhou
- School of Pharmacy , Linyi University , Linyi 276000 , People's Republic of China
| | - Jiao-Zhen Zhang
- Department of Natural Products Chemistry, Key Lab of Chemical Biology of the Ministry of Education , Shandong University , Jinan 250012 , People's Republic of China
| | - Yi Li
- Department of Natural Products Chemistry, Key Lab of Chemical Biology of the Ministry of Education , Shandong University , Jinan 250012 , People's Republic of China
| | - Si-Wen Li
- Department of Natural Products Chemistry, Key Lab of Chemical Biology of the Ministry of Education , Shandong University , Jinan 250012 , People's Republic of China
| | - Sheng-Hua Fan
- Department of Natural Products Chemistry, Key Lab of Chemical Biology of the Ministry of Education , Shandong University , Jinan 250012 , People's Republic of China
| | - Hong-Xiang Lou
- Department of Natural Products Chemistry, Key Lab of Chemical Biology of the Ministry of Education , Shandong University , Jinan 250012 , People's Republic of China
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25
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Harinantenaina L, Asakawa Y. Malagasy Liverworts, Source of New and Biologically Active Compounds. Nat Prod Commun 2019. [DOI: 10.1177/1934578x0700200616] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The phytochemical investigation of eight Jungermaniales liverwort species: Bazzania decrescens, B. madagassa (Lepidoziaceae), Plagiochila barteri, P. terebrans (Plagiochilaceae), Isotachis aubertii (Isotachidaceae), Mastigophora diclados (Lepicoleaceae), Radula appressa (Radulaceae), and Thysananthus spathulistipus (Lejeuneaceae), collected from Madagascar, has been carried out to afford new and structurally interesting terpenoids and aromatic compounds. The biological activities of the isolated secondary metabolites were determined and the herbertene-type sesquiterpenoids were shown to have antibacterial activity. A new ent-clerodane diterpene from Thysananthus spathulistipus and bis-bibenzyls-type aromatic compounds exhibited strong inhibition of NO production in RAW 264.7 cells, while marchantin C produced moderate α-glucosidase inhibition. The chemosystematics of the studied species are discussed.
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Affiliation(s)
- Liva Harinantenaina
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima 770-8514, Japan
| | - Yoshinori Asakawa
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima 770-8514, Japan
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Ahmat N, Said IM, Latip J, Din LB, Syah YM, Hakim EH. New Prenylated Dihydrostilbenes from Croton Laevifolius. Nat Prod Commun 2019. [DOI: 10.1177/1934578x0700201118] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Two prenylated dihydrostilbenes have been isolated from the methanol extract of the flower of Croton laevifolius. The structures of these compounds were assigned as 3,5,3′,4′-tetrahydroxy-2,6,2′-tris(3-methylbut-2-enyl)dihydrostilbene (laevifolin A) and 3,5,3′,4′-tetrahydroxy-2,6,5′-tris(3-methylbut-2-enyl)dihydrostilbene (laevifolin B) based on spectroscopic evidence, including UV, IR, 1D and 2D NMR, and mass spectra. The chemotaxonomic significance of the presence of these dihydrostilbene derivatives is briefly discussed.
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Affiliation(s)
- Norizan Ahmat
- Faculty of Applied Sciences, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia
| | - Ikram M. Said
- School of Chemical Sciences and Food Technology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia
| | - Jalifah Latip
- School of Chemical Sciences and Food Technology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia
| | - Laily B. Din
- School of Chemical Sciences and Food Technology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia
| | - Yana M. Syah
- Department of Chemistry, Institut Teknologi Bandung, Jalan Ganesha 10, Bandung 40132, Indonesia
| | - Euis H. Hakim
- Department of Chemistry, Institut Teknologi Bandung, Jalan Ganesha 10, Bandung 40132, Indonesia
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Qiao YN, Sun Y, Shen T, Zhang JZ, Zhou JC, Li Y, Chen W, Ren ZJ, Li YL, Wang X, Lou HX. Diterpenoids from the Chinese liverwort Frullania hamatiloba and their Nrf2 inducing activities. PHYTOCHEMISTRY 2019; 158:77-85. [PMID: 30476899 DOI: 10.1016/j.phytochem.2018.11.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 10/18/2018] [Accepted: 11/04/2018] [Indexed: 06/09/2023]
Abstract
Six previously undescribed labdane diterpenoids, frullanians A-F, along with five known diterpenoids, were isolated from the Chinese liverwort Frullania hamatiloba Stephani. Their structures were determined using NMR data, electronic circular dichroism (ECD) calculations as well as the single crystal X-ray diffraction measurement. NAD(P)H: QR (quinone reductase) assay demonstrated that frullanian D and four known compounds displayed antioxidant effect mediated via Nrf2 (Nuclear factor-erythroid 2-related factor 2) induction. Further investigation of the most bioactive frullanian D in MOVAS cells revealed that it ameliorated H2O2-induced oxidative insults without toxicity by increasing cell viability, attenuating morphological changes, and reducing intracellular ROS production. In addition, frullanian D promoted the nuclear translocation of Nrf2 and upregulated the expressions of antioxidant proteins NQO1 (NAD(P)H quinone oxidoreductase 1) and γ-GCS (γ-glutamyl cysteine synthetase). Docking analysis using MOE software further supported the activation of the Nrf2 pathway by frullanian D.
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Affiliation(s)
- Ya-Nan Qiao
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, Jinan 250012, China
| | - Yong Sun
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, Jinan 250012, China
| | - Tao Shen
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, Jinan 250012, China
| | - Jiao-Zhen Zhang
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, Jinan 250012, China
| | - Jin-Chuan Zhou
- School of Pharmacy, Linyi University, Linyi 276000, China
| | - Yi Li
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, Jinan 250012, China
| | - Wang Chen
- Vitamin D Research Institute, Shanxi University of Technology, Hanzhong 723000, China
| | - Zhao-Jie Ren
- Nature Department, Shandong Museum, Jinan 250014, China
| | - Yue-Lan Li
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, Jinan 250012, China
| | - Xue Wang
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, Jinan 250012, China
| | - Hong-Xiang Lou
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, Jinan 250012, China.
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Wawrzyniak R, Wasiak W, Jasiewicz B, Ludwiczuk A, Bączkiewicz A, Buczkowska K. High correlation of chemical composition with genotype in cryptic species of the liverwort Aneura pinguis. PHYTOCHEMISTRY 2018; 152:134-147. [PMID: 29763782 DOI: 10.1016/j.phytochem.2018.05.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Revised: 04/19/2018] [Accepted: 05/06/2018] [Indexed: 06/08/2023]
Abstract
Chemical constituents of cryptic species detected within the liverwort Aneura pinguis were identified using headspace solid-phase microextraction gas chromatography-mass spectrometry (HS-SPME-GC-MS). Fibre coating with divinylbenzene/carboxen/polydimethylsiloxane (DVB/CAR/PDMS) was used. A total of 48 samples of A. pinguis were analysed. The studied plants were identified genetically based on barcode DNA sequences and represented three cryptic species (A, B and F) of A. pinguis. Cryptic species A and B are genetically diverse; both represent three evolutionary lineages: A1, A2, A3 and B1, B2, B3, respectively. The cryptic species F that was recently detected is not diverse. The most characteristic compounds in analysed samples were sesquiterpene hydrocarbons (up to 17.7% for A1; 15.7% for A2; 20.6% for A3; 7.7% for B1; 2.0% for B2; 3.7% for B3; 10.2% for F), oxygenated sesquiterpenoids (up to 68.0% for A1; 54.7% for A2; 52.6% for A3; 63.5% for B1; 88.7% for B2; 82.7% for B3; 78.8% for F), and linear aliphatic hydrocarbons (up to 14.8% for A1; 1.1% for A2; 12.1% for A3; 6.9 for B1; 5.2% for B2; 1.1% for B3; 7.0% for F). The dominant compound in the studied samples was pinguisone. The second dominant compound present in the tested plant material was deoxopinguisone, except for lineage B2, where only a small relative concentration of this compound was found. A high content of deoxopinguisone in cryptic species A (lineages A1, A2 and A3) was accompanied by the presence of isopinguisone and methyl norpinguisonate, whereas these two compounds were not detected in cryptic species B (lineages B1 and B3) and F. The chemical compounds detected in the studied samples of A. pinguis were subjected to multivariate statistical analysis. The results showed that the chemical composition depends mainly on the genotype of the plant and slightly on the habitat. However, there was no clear correlation between the volatile compounds and the date of collection of the studied plants.
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Affiliation(s)
- Rafał Wawrzyniak
- Faculty of Chemistry, Adam Mickiewicz University in Poznań, Umultowska 89b, 61-614 Poznań, Poland.
| | - Wiesław Wasiak
- Faculty of Chemistry, Adam Mickiewicz University in Poznań, Umultowska 89b, 61-614 Poznań, Poland
| | - Beata Jasiewicz
- Faculty of Chemistry, Adam Mickiewicz University in Poznań, Umultowska 89b, 61-614 Poznań, Poland
| | - Agnieszka Ludwiczuk
- Chair and Department of Pharmacognosy with Medicinal Plant Unit, Medical University of Lublin, 1 Chodzki Str., 20-093 Lublin, Poland
| | - Alina Bączkiewicz
- Faculty of Biology, Adam Mickiewicz University in Poznań, Umultowska 89, 61-614 Poznań, Poland
| | - Katarzyna Buczkowska
- Faculty of Biology, Adam Mickiewicz University in Poznań, Umultowska 89, 61-614 Poznań, Poland
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Meidlinger D, Marx L, Bordeianu C, Choppin S, Colobert F, Speicher A. Access to the Enantiopure Axially Chiral Cyclophane Isoplagiochin D through Atropo-diastereoselective Heck Coupling. Angew Chem Int Ed Engl 2018; 57:9160-9164. [DOI: 10.1002/anie.201803677] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 05/02/2018] [Indexed: 12/15/2022]
Affiliation(s)
- Daniel Meidlinger
- Department of Organic Chemistry; Saarland University; Campus C4.2 66123 Saarbrücken Germany
| | - Lisa Marx
- Department of Organic Chemistry; Saarland University; Campus C4.2 66123 Saarbrücken Germany
| | - Catalina Bordeianu
- Laboratoire d'Innovation Moléculaire et Applications (LIMA); ECPM, UMR 7042, Université de Strasbourg/Université de Haute-Alsace; CNRS; 25 Rue Becquerel 67000 Strasbourg France
| | - Sabine Choppin
- Laboratoire d'Innovation Moléculaire et Applications (LIMA); ECPM, UMR 7042, Université de Strasbourg/Université de Haute-Alsace; CNRS; 25 Rue Becquerel 67000 Strasbourg France
| | - Françoise Colobert
- Laboratoire d'Innovation Moléculaire et Applications (LIMA); ECPM, UMR 7042, Université de Strasbourg/Université de Haute-Alsace; CNRS; 25 Rue Becquerel 67000 Strasbourg France
| | - Andreas Speicher
- Department of Organic Chemistry; Saarland University; Campus C4.2 66123 Saarbrücken Germany
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30
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Meidlinger D, Marx L, Bordeianu C, Choppin S, Colobert F, Speicher A. Ein Zugang zum enantiomerenreinen axial chiralen Cyclophan Isoplagiochin D durch atrop-diastereoselektive Heck-Kupplung. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201803677] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Daniel Meidlinger
- Institut für Organische Chemie; Universität des Saarlandes; Campus C4.2 66123 Saarbrücken Deutschland
| | - Lisa Marx
- Institut für Organische Chemie; Universität des Saarlandes; Campus C4.2 66123 Saarbrücken Deutschland
| | - Catalina Bordeianu
- Laboratoire d'Innovation Moléculaire et Applications (LIMA); ECPM, UMR 7042, Université de Strasbourg/Université de Haute-Alsace; CNRS; 25 Rue Becquerel 67000 Strasbourg Frankreich
| | - Sabine Choppin
- Laboratoire d'Innovation Moléculaire et Applications (LIMA); ECPM, UMR 7042, Université de Strasbourg/Université de Haute-Alsace; CNRS; 25 Rue Becquerel 67000 Strasbourg Frankreich
| | - Françoise Colobert
- Laboratoire d'Innovation Moléculaire et Applications (LIMA); ECPM, UMR 7042, Université de Strasbourg/Université de Haute-Alsace; CNRS; 25 Rue Becquerel 67000 Strasbourg Frankreich
| | - Andreas Speicher
- Institut für Organische Chemie; Universität des Saarlandes; Campus C4.2 66123 Saarbrücken Deutschland
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Métoyer B, Lebouvier N, Hnawia E, Herbette G, Thouvenot L, Asakawa Y, Nour M, Raharivelomanana P. Chemotypes and Biomarkers of Seven Species of New Caledonian Liverworts from the Bazzanioideae Subfamily. Molecules 2018; 23:E1353. [PMID: 29874780 PMCID: PMC6100190 DOI: 10.3390/molecules23061353] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Revised: 05/30/2018] [Accepted: 05/31/2018] [Indexed: 12/26/2022] Open
Abstract
Volatile components of seven species of the Bazzanioideae sub-family (Lepidoziaceae) native to New Caledonia, including three endemic species (Bazzania marginata, Acromastigum caledonicum and A. tenax), were analyzed by GC-FID-MS in order to index these plants to known or new chemotypes. Detected volatile constituents in studied species were constituted mainly by sesquiterpene, as well as diterpene compounds. All so-established compositions cannot successfully index some of them to known chemotypes but afforded the discovery of new chemotypes such as cuparane/fusicoccane. The major component of B. francana was isolated and characterized as a new zierane-type sesquiterpene called ziera-12(13),10(14)-dien-5-ol (23). In addition, qualitative intraspecies variations of chemical composition were very important particularly for B. francana which possessed three clearly defined different compositions. We report here also the first phytochemical investigation of Acromastigum species. Moreover, crude diethyl ether extract of B. vitatta afforded a new bis(bibenzyl) called vittatin (51), for which a putative biosynthesis was suggested.
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Affiliation(s)
- Benjamin Métoyer
- Institut des Sciences Exactes et Appliquées (ISEA) EA 7484, Université de la Nouvelle-Calédonie, 98851 Nouméa, New Caledonia.
| | - Nicolas Lebouvier
- Institut des Sciences Exactes et Appliquées (ISEA) EA 7484, Université de la Nouvelle-Calédonie, 98851 Nouméa, New Caledonia.
| | - Edouard Hnawia
- Institut des Sciences Exactes et Appliquées (ISEA) EA 7484, Université de la Nouvelle-Calédonie, 98851 Nouméa, New Caledonia.
| | - Gaëtan Herbette
- Aix Marseille Univ, CNRS, Centrale Marseille, FSCM, Spectropole, Service 511, Campus Saint-Jérome, 13397 Marseille CEDEX 20, France.
| | - Louis Thouvenot
- Independent Researcher, 11, Rue Saint-Léon, 66000 Perpignan, France.
| | - Yoshinori Asakawa
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Tokushima 7708514, Japan.
| | - Mohammed Nour
- Institut des Sciences Exactes et Appliquées (ISEA) EA 7484, Université de la Nouvelle-Calédonie, 98851 Nouméa, New Caledonia.
| | - Phila Raharivelomanana
- UMR 241 EIO, Université de la Polynésie Française, 98702 Faaa, Tahiti, French Polynesia.
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Asakawa Y, Ludwiczuk A. Chemical Constituents of Bryophytes: Structures and Biological Activity. JOURNAL OF NATURAL PRODUCTS 2018; 81:641-660. [PMID: 29019405 DOI: 10.1021/acs.jnatprod.6b01046] [Citation(s) in RCA: 95] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Comparatively little attention has been paid to the bryophytes for use in the human diet or medicine in spite of the presence of 23 000 species globally. Several hundred new compounds have been isolated from the liverworts (Marchantiophyta), and more than 40 new carbon skeletons of terpenoids and aromatic compounds were found. Most of the liverworts studied elaborate characteristic odiferous, pungent, and bitter-tasting compounds, of which many show antimicrobial, antifungal, antiviral, allergic contact dermatitis, cytotoxic, insecticidal, anti-HIV, plant growth regulatory, neurotrophic, NO production and superoxide anion radical release inhibitory, muscle relaxing, antiobesity, piscicidal, and nematocidal activities. The biological effects ascribed to the liverworts are mainly due to lipophilic sesqui- and diterpenoids, phenolic compounds, and polyketides, which are the principal constituents of their oil bodies. Some mosses and liverworts produce significant levels of vitamin B2 and tocopherols, as well as prostaglandin-like highly unsaturated fatty acids. The most characteristic chemical phenomenon of the liverworts is that most of the sesqui- and diterpenoids are enantiomers of those found in higher plants. In this review, the chemical constituents and potential medicinal uses of bryophytes are discussed.
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Affiliation(s)
- Yoshinori Asakawa
- Faculty of Pharmaceutical Sciences , Tokushima Bunri University , Yamashiro-cho, Tokushima 770-8514 , Japan
| | - Agnieszka Ludwiczuk
- Department of Pharmacognosy with Medicinal Plant Unit , Medical University of Lublin , 20-093 Lublin , Poland
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S. Vairappan C, Ng SY, Kamada T, Phan CS, Suleiman M. New Prenylated Bibenzyls from Bornean Liverwort Acrobolbus saccatus. HETEROCYCLES 2018. [DOI: 10.3987/com-18-13981] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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34
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Zhao P, Song C. Macrocyclic Bisbibenzyls: Properties and Synthesis. STUDIES IN NATURAL PRODUCTS CHEMISTRY 2018. [DOI: 10.1016/b978-0-444-64068-0.00003-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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Pannequin A, Tintaru A, Desjobert JM, Costa J, Muselli A. New advances in the volatile metabolites of Frullania tamarisci. FLAVOUR FRAG J 2017. [DOI: 10.1002/ffj.3407] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Anaïs Pannequin
- Laboratoire Chimie des Produits Naturels, BP 52; Université de Corse, UMR CNRS 6134; 20250 Corte France
| | - Aura Tintaru
- Aix Marseille Univ, CNRS, Institut de Chimie Radicalaire, UMR 7273; 13397 Marseille France
| | - Jean-Marie Desjobert
- Laboratoire Chimie des Produits Naturels, BP 52; Université de Corse, UMR CNRS 6134; 20250 Corte France
| | - Jean Costa
- Laboratoire Chimie des Produits Naturels, BP 52; Université de Corse, UMR CNRS 6134; 20250 Corte France
| | - Alain Muselli
- Laboratoire Chimie des Produits Naturels, BP 52; Université de Corse, UMR CNRS 6134; 20250 Corte France
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Ludwiczuk A, Asakawa Y. GC/MS Fingerprinting of Solvent Extracts and Essential Oils Obtained from Liverwort Species. Nat Prod Commun 2017. [DOI: 10.1177/1934578x1701200838] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Studies concerning chemical profiling of the volatiles present in the solvent extracts from liverworts help to determine inter- and intraspecific relationships in this plant group. Due to the fact that the liverworts are morphologically very small and it is difficult to collect their sufficient amounts, there are still a few data concerning the chemistry of essential oils. The available data indicate however, that the components present in the essential oils can be used in chemosystematic studies of these spore-forming plants. Compounds occurring in the essential oils constitute a powerful tool for studying chemical differences between or within liverwort species for which the characteristic components are mono- and sesquiterpenoids. Good results were obtained for the liverworts species from the genera Asterella, Conocephalum, Diplophyllum, Jungermannia, Lepidozia, Radula, Reboulia or Scapania.
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Affiliation(s)
- Agnieszka Ludwiczuk
- Department of Pharmacognosy with Medicinal Plant Unit, Medical University of Lublin, 1 Chodzki Str., 20-093 Lublin, Poland
| | - Yoshinori Asakawa
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima 770-8514, Japan
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Morin É, Raymond M, Dubart A, Collins SK. Total Synthesis of Neomarchantin A: Key Bond Constructions Performed Using Continuous Flow Methods. Org Lett 2017; 19:2889-2892. [DOI: 10.1021/acs.orglett.7b01127] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Émilie Morin
- Department of Chemistry and
Centre for Green Chemistry and Catalysis, Université de Montréal, CP 6128 Station Downtown, Montréal, Québec, Canada H3C 3J7
| | - Michaël Raymond
- Department of Chemistry and
Centre for Green Chemistry and Catalysis, Université de Montréal, CP 6128 Station Downtown, Montréal, Québec, Canada H3C 3J7
| | - Amaury Dubart
- Department of Chemistry and
Centre for Green Chemistry and Catalysis, Université de Montréal, CP 6128 Station Downtown, Montréal, Québec, Canada H3C 3J7
| | - Shawn K. Collins
- Department of Chemistry and
Centre for Green Chemistry and Catalysis, Université de Montréal, CP 6128 Station Downtown, Montréal, Québec, Canada H3C 3J7
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Kaur M, Kumar R, Upendrabhai DP, Singh IP, Kaur S. Impact of sesquiterpenes from Inula racemosa (Asteraceae) on growth, development and nutrition of Spodoptera litura (Lepidoptera: Noctuidae). PEST MANAGEMENT SCIENCE 2017; 73:1031-1038. [PMID: 27607232 DOI: 10.1002/ps.4429] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Revised: 08/23/2016] [Accepted: 08/31/2016] [Indexed: 06/06/2023]
Abstract
BACKGROUND The use of botanical pesticides for protecting crops from insect pests has assumed greater importance all over the world owing to growing awareness of harmful effects of indiscriminate use of synthetic pesticides. Inula racemosa Hook. f. (Asteraceae), a medicinally important perennial herb, is rich in sesquiterpenes with many biological activities. The present studies were conducted with the objective to evaluate the sesquiterpenes isolated from I. racemosa for insecticidal activity against Spodoptera litura (F.). RESULTS Alantolactone and isoalantolactone isolated from I. racemosa exerted growth inhibitory effects on S. litura. Addition of both the sesquiterpenes to larval diet extended the development period and reduced pupation as well as adult emergence. The dietary utilisation experiments on third-instar larvae of S. litura revealed reduction in consumption and growth rates of larvae as well as efficiency of conversion of ingested and digested food owing to alantolactone and isoalantolactone. CONCLUSION The root extract of I. racemosa, which is rich in two sesquiterpenes, i.e. alantolactone and isoalantolactone, has the potential for management of S. litura. However, there is a need to understand the specific mechanism of action of these compounds. © 2016 Society of Chemical Industry.
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Affiliation(s)
- Mandeep Kaur
- Department of Zoology, Guru Nanak Dev University, Amritsar, Punjab, India
| | - Rakesh Kumar
- Department of Natural Products, National Institute of Pharmaceutical Education and Research (NIPER), S.A.S. Nagar, Punjab, India
| | - Deep Patel Upendrabhai
- Department of Natural Products, National Institute of Pharmaceutical Education and Research (NIPER), S.A.S. Nagar, Punjab, India
| | - Inder Pal Singh
- Department of Natural Products, National Institute of Pharmaceutical Education and Research (NIPER), S.A.S. Nagar, Punjab, India
| | - Sanehdeep Kaur
- Department of Zoology, Guru Nanak Dev University, Amritsar, Punjab, India
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Li RJ, Wang S, Li G, Zhou JC, Zhang JZ, Zhang YM, Shi GS, Lou HX. Four New Kaurane Diterpenoids from the Chinese Liverwort Jungermannia comata
Nees. Chem Biodivers 2016; 13:1685-1690. [PMID: 27448440 DOI: 10.1002/cbdv.201600123] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2016] [Accepted: 06/20/2016] [Indexed: 11/05/2022]
Affiliation(s)
- Rui-Juan Li
- State Key Laboratory of Microbial Technology; Shandong University-Helmholtz Institute of Biotechnology; School of Life Sciences; Shandong University; Shanda Nanlu 27 Jinan 250100 P. R. China
- Key Lab of Chemical Biology of Ministry of Education; Department of Natural Products Chemistry; School of Pharmaceutical Science; Shandong University; No. 44 West Wenhua Road Jinan 250012 P. R. China
| | - Song Wang
- Key Lab of Chemical Biology of Ministry of Education; Department of Natural Products Chemistry; School of Pharmaceutical Science; Shandong University; No. 44 West Wenhua Road Jinan 250012 P. R. China
- Shandong Institute for Food and Drug Control; No. 2749 Xinluo Road, New and High-tech Developing Zone Jinan 250101 P. R. China
| | - Gang Li
- Key Lab of Chemical Biology of Ministry of Education; Department of Natural Products Chemistry; School of Pharmaceutical Science; Shandong University; No. 44 West Wenhua Road Jinan 250012 P. R. China
| | - Jin-Chuan Zhou
- Key Lab of Chemical Biology of Ministry of Education; Department of Natural Products Chemistry; School of Pharmaceutical Science; Shandong University; No. 44 West Wenhua Road Jinan 250012 P. R. China
| | - Jiao-Zhen Zhang
- Key Lab of Chemical Biology of Ministry of Education; Department of Natural Products Chemistry; School of Pharmaceutical Science; Shandong University; No. 44 West Wenhua Road Jinan 250012 P. R. China
| | - You-Ming Zhang
- State Key Laboratory of Microbial Technology; Shandong University-Helmholtz Institute of Biotechnology; School of Life Sciences; Shandong University; Shanda Nanlu 27 Jinan 250100 P. R. China
| | - Guo-Sheng Shi
- Shandong Institute for Food and Drug Control; No. 2749 Xinluo Road, New and High-tech Developing Zone Jinan 250101 P. R. China
| | - Hong-Xiang Lou
- Key Lab of Chemical Biology of Ministry of Education; Department of Natural Products Chemistry; School of Pharmaceutical Science; Shandong University; No. 44 West Wenhua Road Jinan 250012 P. R. China
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40
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Biological Evaluation of Terrestrial and Marine Plant Originated Labdane Diterpenes (A Review). Pharm Chem J 2016. [DOI: 10.1007/s11094-016-1490-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Almalki FA, Harrowven DC. A Corey-Seebach Macrocyclisation Strategy for the Synthesis of Riccardin C and an Unnatural Macrocyclic Bis(bibenzyl) Analogue. European J Org Chem 2016. [DOI: 10.1002/ejoc.201601179] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Faisal A. Almalki
- Chemistry; University of Southampton; Highfield SO17 1BJ Southampton, Hampshire UK
| | - David C. Harrowven
- Chemistry; University of Southampton; Highfield SO17 1BJ Southampton, Hampshire UK
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Microbial-type terpene synthase genes occur widely in nonseed land plants, but not in seed plants. Proc Natl Acad Sci U S A 2016; 113:12328-12333. [PMID: 27791023 DOI: 10.1073/pnas.1607973113] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The vast abundance of terpene natural products in nature is due to enzymes known as terpene synthases (TPSs) that convert acyclic prenyl diphosphate precursors into a multitude of cyclic and acyclic carbon skeletons. Yet the evolution of TPSs is not well understood at higher levels of classification. Microbial TPSs from bacteria and fungi are only distantly related to typical plant TPSs, whereas genes similar to microbial TPS genes have been recently identified in the lycophyte Selaginella moellendorffii The goal of this study was to investigate the distribution, evolution, and biochemical functions of microbial terpene synthase-like (MTPSL) genes in other plants. By analyzing the transcriptomes of 1,103 plant species ranging from green algae to flowering plants, putative MTPSL genes were identified predominantly from nonseed plants, including liverworts, mosses, hornworts, lycophytes, and monilophytes. Directed searching for MTPSL genes in the sequenced genomes of a wide range of seed plants confirmed their general absence in this group. Among themselves, MTPSL proteins from nonseed plants form four major groups, with two of these more closely related to bacterial TPSs and the other two to fungal TPSs. Two of the four groups contain a canonical aspartate-rich "DDxxD" motif. The third group has a "DDxxxD" motif, and the fourth group has only the first two "DD" conserved in this motif. Upon heterologous expression, representative members from each of the four groups displayed diverse catalytic functions as monoterpene and sesquiterpene synthases, suggesting these are important for terpene formation in nonseed plants.
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Zhou J, Zhang J, Li R, Liu J, Fan P, Li Y, Ji M, Dong Y, Yuan H, Lou H. Hapmnioides A-C, Rearranged Labdane-Type Diterpenoids from the Chinese Liverwort Haplomitrium mnioides. Org Lett 2016; 18:4274-6. [PMID: 27513610 DOI: 10.1021/acs.orglett.6b01854] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Many exceptional labdane-type diterpenoids have been exclusively found in liverworts, which serve as taxonomic molecules or play important ecological roles in interactions among organisms. Three unprecedented labdane-type diterpenoids hapmnioides A (1), B (2), and C (3) formed through cascade rearrangement from the Chinese liverwort Haplomitrium mnioides are reported. Their structures were established by comprehensive spectroscopic analysis coupled with single-crystal X-ray diffraction, and their anti-inflammatory activities were also preliminarily tested.
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Affiliation(s)
- Jinchuan Zhou
- Department of Natural Products Chemistry, Key Lab of Chemical Biology (MOE), School of Pharmaceutical Sciences and ‡Department of Biochemistry and Molecular Biology, School of Medicine, Shandong University , No. 44 West Wenhua Road, Jinan 250012, P. R. China
| | - Jiaozhen Zhang
- Department of Natural Products Chemistry, Key Lab of Chemical Biology (MOE), School of Pharmaceutical Sciences and ‡Department of Biochemistry and Molecular Biology, School of Medicine, Shandong University , No. 44 West Wenhua Road, Jinan 250012, P. R. China
| | - Ruijuan Li
- Department of Natural Products Chemistry, Key Lab of Chemical Biology (MOE), School of Pharmaceutical Sciences and ‡Department of Biochemistry and Molecular Biology, School of Medicine, Shandong University , No. 44 West Wenhua Road, Jinan 250012, P. R. China
| | - Jun Liu
- Department of Natural Products Chemistry, Key Lab of Chemical Biology (MOE), School of Pharmaceutical Sciences and ‡Department of Biochemistry and Molecular Biology, School of Medicine, Shandong University , No. 44 West Wenhua Road, Jinan 250012, P. R. China
| | - Peihong Fan
- Department of Natural Products Chemistry, Key Lab of Chemical Biology (MOE), School of Pharmaceutical Sciences and ‡Department of Biochemistry and Molecular Biology, School of Medicine, Shandong University , No. 44 West Wenhua Road, Jinan 250012, P. R. China
| | - Yi Li
- Department of Natural Products Chemistry, Key Lab of Chemical Biology (MOE), School of Pharmaceutical Sciences and ‡Department of Biochemistry and Molecular Biology, School of Medicine, Shandong University , No. 44 West Wenhua Road, Jinan 250012, P. R. China
| | - Mei Ji
- Department of Natural Products Chemistry, Key Lab of Chemical Biology (MOE), School of Pharmaceutical Sciences and ‡Department of Biochemistry and Molecular Biology, School of Medicine, Shandong University , No. 44 West Wenhua Road, Jinan 250012, P. R. China
| | - Yiwen Dong
- Department of Natural Products Chemistry, Key Lab of Chemical Biology (MOE), School of Pharmaceutical Sciences and ‡Department of Biochemistry and Molecular Biology, School of Medicine, Shandong University , No. 44 West Wenhua Road, Jinan 250012, P. R. China
| | - Huiqing Yuan
- Department of Natural Products Chemistry, Key Lab of Chemical Biology (MOE), School of Pharmaceutical Sciences and ‡Department of Biochemistry and Molecular Biology, School of Medicine, Shandong University , No. 44 West Wenhua Road, Jinan 250012, P. R. China
| | - Hongxiang Lou
- Department of Natural Products Chemistry, Key Lab of Chemical Biology (MOE), School of Pharmaceutical Sciences and ‡Department of Biochemistry and Molecular Biology, School of Medicine, Shandong University , No. 44 West Wenhua Road, Jinan 250012, P. R. China
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Ng SY, Kamada T, Suleiman M, Vairappan CS. A New Seco-Clerodane-Type Diterpenoid from Bornean Liverwort Schistochila acuminata. Nat Prod Commun 2016. [DOI: 10.1177/1934578x1601100808] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
A new compound, schistochilic acid D (1) and two known compounds (2 and 3) were isolated from MeOH extract of Bornean liverwort Schistochila acuminata collected from Mount Trus Madi, Sabah. The structure of the new metabolite was established based on spectroscopic (1D NMR, 2D NMR, and IR). and HRESIMS data. In addition, another population of S. acuminata collected from Mount Alab (Sabah) yielded four known compounds, 2, 3, 4 and 5. These compounds were tested for their biological potential against the B16-F10 cell line. Compounds 4 and 5 exhibited weak cytotoxic activity.
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Affiliation(s)
- Shean-Yeaw Ng
- Laboratory of Natural Products Chemistry, Institute for Tropical Biology and Conservation, Universiti Malaysia Sabah, 88400 Kota Kinabalu, Sabah, Malaysia
| | - Takashi Kamada
- Laboratory of Natural Products Chemistry, Institute for Tropical Biology and Conservation, Universiti Malaysia Sabah, 88400 Kota Kinabalu, Sabah, Malaysia
| | - Monica Suleiman
- Laboratory of Natural Products Chemistry, Institute for Tropical Biology and Conservation, Universiti Malaysia Sabah, 88400 Kota Kinabalu, Sabah, Malaysia
| | - Charles S. Vairappan
- Laboratory of Natural Products Chemistry, Institute for Tropical Biology and Conservation, Universiti Malaysia Sabah, 88400 Kota Kinabalu, Sabah, Malaysia
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45
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Xu CL, Wang JX, Li HL. Two new cyclic bisbibenzyl derivatives from Hebertus dicranus. Chin J Nat Med 2016; 14:457-61. [PMID: 27473964 DOI: 10.1016/s1875-5364(16)30043-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Indexed: 11/24/2022]
Abstract
In the present study, two new cyclic bisbibenzyls (1, 2) co-occuring with a known compound, isoplagiochins C (3) were isolated from Hebertus dicranus. The structures were determined mainly by extensive 1D and 2D NMR experiments, and the absolute configurations of 1 and 2 were established by the circular dichroism spectrum. Furthermore, all these three rare compounds were tested in vitro for inhibitory activity against the growth of human cancer cell lines (A549, HCT116, MDA-MB-231, and BEL7404) by the MTT assay, and compound 2 exhibited moderately inhibitory activity with IC50 values ranging from 13.89 to 31.62 μmol·L(-1). In conclusion, our results provided a basis for future development and modification of these compounds for cancer therapy.
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Affiliation(s)
- Chang-Long Xu
- School of Pharmacy and Life Science, Jiujiang University, Jiujiang 332000, China
| | - Jin-Xin Wang
- School of Pharmacy, Second Military Medical University, Shanghai 200433, China
| | - Hui-Liang Li
- School of Pharmacy, Second Military Medical University, Shanghai 200433, China.
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Ng SY, Kamada T, Suleiman M, Vairappan CS. A new cembrane-type diterpenoid from Bornean liverwort Chandonanthus hirtellus. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2016; 18:690-696. [PMID: 26828126 DOI: 10.1080/10286020.2015.1134503] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2015] [Accepted: 12/17/2015] [Indexed: 06/05/2023]
Abstract
A new compound, chandonanol (1), along with four known compounds, chandonanthone (2), iso-chandonanthone (3), anastreptene (4), and (6R,7S)-sesquiphellandrene (5), was isolated from the MeOH extract of Bornean liverwort Chandonanthus hirtellus. The structure of the new metabolite was established by analyses of the spectroscopic data (1D NMR, 2D NMR, HRESIMS, and IR). These compounds were tested for their activity against antibiotic-resistant clinical strains. Chandonanol (1) exhibited potent bactericidal activity against Staphylococcus aureus and Escherichia coli.
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Affiliation(s)
- Shean-Yeaw Ng
- a Laboratory of Natural Products Chemistry , Institute for Tropical Biology and Conservation, Universiti Malaysia Sabah , Kota Kinabalu 88400 , Malaysia
| | - Takashi Kamada
- a Laboratory of Natural Products Chemistry , Institute for Tropical Biology and Conservation, Universiti Malaysia Sabah , Kota Kinabalu 88400 , Malaysia
| | - Monica Suleiman
- b Institute for Tropical Biology and Conservation, Universiti Malaysia Sabah , Kota Kinabalu 88400 , Malaysia
| | - Charles S Vairappan
- a Laboratory of Natural Products Chemistry , Institute for Tropical Biology and Conservation, Universiti Malaysia Sabah , Kota Kinabalu 88400 , Malaysia
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47
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Liao SG, Yue JM. Dimeric Sesquiterpenoids. PROGRESS IN THE CHEMISTRY OF ORGANIC NATURAL PRODUCTS 101 2016; 101:1-112. [DOI: 10.1007/978-3-319-22692-7_1] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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48
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Huang B, Guo L, Jia Y. Protecting-Group-Free Enantioselective Synthesis of (−)-Pallavicinin and (+)-Neopallavicinin. Angew Chem Int Ed Engl 2015; 54:13599-603. [DOI: 10.1002/anie.201506575] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2015] [Indexed: 12/17/2022]
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49
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Huang B, Guo L, Jia Y. Protecting-Group-Free Enantioselective Synthesis of (−)-Pallavicinin and (+)-Neopallavicinin. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201506575] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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50
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Zhang J, Li Y, Zhu R, Li L, Wang Y, Zhou J, Qiao Y, Zhang Z, Lou H. Scapairrins A-Q, Labdane-Type Diterpenoids from the Chinese Liverwort Scapania irrigua and Their Cytotoxic Activity. JOURNAL OF NATURAL PRODUCTS 2015; 78:2087-2094. [PMID: 26252628 DOI: 10.1021/acs.jnatprod.5b00416] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Seventeen new labdane-type diterpenoids, scapairrins A-Q (1-17), including six pairs of diastereoisomers, and three known analogues (18-20) were isolated from the Chinese liverwort Scapania irrigua. The structures of 1-17 were determined based on a combination of the analysis of their MS and NMR spectroscopic data, single-crystal X-ray diffraction, and electronic circular dichroism calculations. Cytotoxicity testing showed that compounds 7-10 exhibited inhibitory activities against a small panel of human cancer cell lines.
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Affiliation(s)
- Jiaozhen Zhang
- Department of Natural Products Chemistry, Key Lab of Chemical Biology of the Ministry of Education, Shandong University , Jinan 250012, People's Republic of China
| | - Yi Li
- Department of Natural Products Chemistry, Key Lab of Chemical Biology of the Ministry of Education, Shandong University , Jinan 250012, People's Republic of China
| | - Rongxiu Zhu
- School of Chemistry and Chemical Engineering, Shandong University , Jinan 250010, People's Republic of China
| | - Lin Li
- Department of Natural Products Chemistry, Key Lab of Chemical Biology of the Ministry of Education, Shandong University , Jinan 250012, People's Republic of China
| | - Yongjie Wang
- Department of Natural Products Chemistry, Key Lab of Chemical Biology of the Ministry of Education, Shandong University , Jinan 250012, People's Republic of China
| | - Jinchuan Zhou
- Department of Natural Products Chemistry, Key Lab of Chemical Biology of the Ministry of Education, Shandong University , Jinan 250012, People's Republic of China
| | - Yanan Qiao
- Department of Natural Products Chemistry, Key Lab of Chemical Biology of the Ministry of Education, Shandong University , Jinan 250012, People's Republic of China
| | - Zhenwei Zhang
- School of Chemistry and Chemical Engineering, University of Jinan , Jinan 250022, People's Republic of China
| | - Hongxiang Lou
- Department of Natural Products Chemistry, Key Lab of Chemical Biology of the Ministry of Education, Shandong University , Jinan 250012, People's Republic of China
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