1
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Hirozumi R, Hakamada M, Minowa T, Cho Y, Kudo Y, Konoki K, Oshima Y, Nagasawa K, Yotsu‐Yamashita M. Synthesis of Saxitoxin Biosynthetic Intermediates: Reveal the Mechanism for Formation of its Tricyclic Skeleton in Biosynthesis. Chem Asian J 2024; 19:e202400834. [PMID: 39305001 PMCID: PMC11639635 DOI: 10.1002/asia.202400834] [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: 07/15/2024] [Revised: 09/15/2024] [Indexed: 11/02/2024]
Abstract
The synthesis and biosynthesis of the complex saxitoxin (STX) structure have garnered significant interest. Previously, we hypothesized that the tricyclic skeleton of STX originates from the monocyclic precursor 11-hydroxy-IntC'2 during biosynthesis, although direct evidence has been lacking. In this study, we identified conditions to synthesize a proposed tricyclic biosynthetic intermediate, 12,12-dideoxy-decarbamoyloxySTX (dd-doSTX), along with its 6-epimer (6-epi-dd-doSTX) and a bicyclic compound, in a single step from di-Boc protected 11-hydroxy-IntC'2. The reaction mechanism involves successive aza-Michael addition of a guanidino amine to the conjugated olefin. Notably, both dd-doSTX and 6-epi-dd-doSTX were detected in a toxin-producing cyanobacterium, suggesting that the biosynthetic enzymes may generate these compounds via similar mechanisms.
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Affiliation(s)
- Ryosuke Hirozumi
- Graduate School of Agricultural ScienceTohoku University468-1 Aramaki-Aza-Aoba, Aoba-kuSendai980-8572Japan
| | - Mayu Hakamada
- Graduate School of Agricultural ScienceTohoku University468-1 Aramaki-Aza-Aoba, Aoba-kuSendai980-8572Japan
| | - Takashi Minowa
- Graduate School of Agricultural ScienceTohoku University468-1 Aramaki-Aza-Aoba, Aoba-kuSendai980-8572Japan
| | - Yuko Cho
- Graduate School of Agricultural ScienceTohoku University468-1 Aramaki-Aza-Aoba, Aoba-kuSendai980-8572Japan
| | - Yuta Kudo
- Graduate School of Agricultural ScienceTohoku University468-1 Aramaki-Aza-Aoba, Aoba-kuSendai980-8572Japan
- The Frontier Research Institute for Interdisciplinary SciencesTohoku University6-3 Aramaki-Aza-Aoba, Aoba-kuSendai980-8578Japan
| | - Keiichi Konoki
- Graduate School of Agricultural ScienceTohoku University468-1 Aramaki-Aza-Aoba, Aoba-kuSendai980-8572Japan
| | - Yasukatsu Oshima
- Graduate School of Life SciencesTohoku University (Prof. emeritous)2-1-1 Katahira, Aoba-kuSendai980-8577Japan
| | - Kazuo Nagasawa
- Department of Biotechnology and Life ScienceTokyo University of Agriculture and Technology2-24-16, Naka-choKoganei, Tokyo184-8588Japan
| | - Mari Yotsu‐Yamashita
- Graduate School of Agricultural ScienceTohoku University468-1 Aramaki-Aza-Aoba, Aoba-kuSendai980-8572Japan
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Liu M, Zhang X, Li G. Structural and Biological Insights into the Hot‐spot Marine Natural Products Reported from 2012 to 2021. CHINESE J CHEM 2022. [DOI: 10.1002/cjoc.202200129] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Mingyu Liu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy Ocean University of China Qingdao 266003 China
- State Key Laboratory of Microbial Technology Shandong University Qingdao 266237 China
| | - Xingwang Zhang
- State Key Laboratory of Microbial Technology Shandong University Qingdao 266237 China
| | - Guoqiang Li
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy Ocean University of China Qingdao 266003 China
- Laboratory of Marine Drugs and Biological Products, National Laboratory for Marine Science and Technology Qingdao 266235 China
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3
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Reddy MM, Jennings L, Thomas OP. Marine Biodiscovery in a Changing World. PROGRESS IN THE CHEMISTRY OF ORGANIC NATURAL PRODUCTS 2021; 116:1-36. [PMID: 34698944 DOI: 10.1007/978-3-030-80560-9_1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
Abstract
The term "marine biodiscovery" has been recently been adopted to describe the area of marine natural products dedicated to the search of new drugs. Several maritime countries such as Australia, New Zealand, South Korea, and Japan as well as some European countries have invested significantly in this area of research over the last 50 years. In the late 2000s, research in this field has received significant interest and support in Ireland for exploring new marine bioresources from the nutrient-rich waters of the Northeastern Atlantic Ocean. Despite undeniable success exemplified by the marketing of new drugs, especially in oncology, the integration of new technical but also environmental aspects should be considered. Indeed, global change, particularly in our oceans, such as climate change, biodiversity loss, and the emergence of microbial pathogens, not only affects the environment but ultimately contributes to social inequalities. In this contribution, new avenues and best practices are proposed, such as the development of biorepositories and shared data for the future of marine biodiscovery research. The extension of this type of scientific work will allow humanity to finally make the optimum use of marine bioresources.
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Affiliation(s)
- Maggie M Reddy
- Marine Biodiscovery, School of Chemistry and Ryan Institute, NUI Galway, University Road, Galway, H91TK33, Ireland
| | - Laurence Jennings
- Marine Biodiscovery, School of Chemistry and Ryan Institute, NUI Galway, University Road, Galway, H91TK33, Ireland
| | - Olivier P Thomas
- Marine Biodiscovery, School of Chemistry and Ryan Institute, NUI Galway, University Road, Galway, H91TK33, Ireland.
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4
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1-Tosyl-6-vinyl-4,5,6,7-tetrahydro-1H-benzo [d] imidazole-2-amine. MOLBANK 2021. [DOI: 10.3390/m1262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The alkene functionalised 2-aminobenzimidazole ring found in terrazoanthine natural products was synthesized in 3 steps from 1,2-epoxy-4-vinylcyclohexane via epoxide ring opening with toluenesulphonamide yielding 2 regioisomeric, separable amino alcohols. One isomer was oxidized to the corresponding ketone and subsequently condensed with cyanamide to furnish the title compound, which was characterized by 1H-NMR and 13C-NMR spectroscopy.
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Guillen PO, Jaramillo KB, Genta-Jouve G, Thomas OP. Marine natural products from zoantharians: bioactivity, biosynthesis, systematics, and ecological roles. Nat Prod Rep 2020; 37:515-540. [DOI: 10.1039/c9np00043g] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The dazzling marine zoantharians represent a reservoir of chemical diversity that remains to be unveiled. These fragile animals have so far been found to harbour the highly bioactive palytoxins or zoanthamines but also the harmless ecdysteroids or zoanthozanthins.
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Affiliation(s)
- Paul O. Guillen
- Marine Biodiscovery
- School of Chemistry and Ryan Institute
- National University of Ireland Galway (NUI Galway)
- H91 TK33 Galway
- Ireland
| | - Karla B. Jaramillo
- ESPOL Escuela Superior Politécnica del Litoral, ESPOL
- Centro Nacional de Acuacultura e Investigaciones Marinas
- Guayaquil
- Ecuador
- Zoology
| | - Grégory Genta-Jouve
- Muséum National d'Histoire Naturelle
- Unité Molécules de Communication et Adaptation des Micro-organismes (UMR 7245)
- Sorbonne Universités
- CNRS
- Paris
| | - Olivier P. Thomas
- Marine Biodiscovery
- School of Chemistry and Ryan Institute
- National University of Ireland Galway (NUI Galway)
- H91 TK33 Galway
- Ireland
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6
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Guillen PO, Jaramillo KB, Jennings L, Genta-Jouve G, de la Cruz M, Cautain B, Reyes F, Rodríguez J, Thomas OP. Halogenated Tyrosine Derivatives from the Tropical Eastern Pacific Zoantharians Antipathozoanthus hickmani and Parazoanthus darwini. JOURNAL OF NATURAL PRODUCTS 2019; 82:1354-1360. [PMID: 31017788 DOI: 10.1021/acs.jnatprod.9b00173] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
In the search for bioactive marine natural products from zoantharians of the Tropical Eastern Pacific, four new tyrosine dipeptides, named valdiviamides A-D (1-4), were isolated from Antipathozoanthus hickmani, and two new tyramine derivatives, 5 and 6, from Parazoanthus darwini. The phenols of all six tyrosine derivatives are substituted by bromine and/or iodine atoms at the ortho positions of the hydroxyl. The planar structures of these aromatic alkaloids were elucidated from 1D and 2D NMR experiments in combination with HRESIMS data, and the absolute configurations of 1-4 were deduced from comparison between experimental and calculated electronic circular dichroism spectra. As halogenated tyrosine derivatives could represent chemotaxonomic markers of these genera, we decided to undertake the first chemical investigation of another species, Terrazoanthus cf. patagonichus. As expected, no halogenated metabolite was evidenced in the species, but we report herein the identification of two new zoanthoxanthin derivatives, named zoamides E (7) and F (8), from this species. Antimicrobial and cytotoxicity bioassays revealed that valdiviamide B (2) displayed moderate cytotoxicity against the HepG2 cell line with an IC50 value of 7.8 μM.
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Affiliation(s)
- Paul O Guillen
- ESPOL Escuela Superior Politécnica del Litoral, ESPOL , Centro Nacional de Acuacultura e Investigaciones Marinas , Campus Gustavo Galindo km. 30.5 vía Perimetral , P.O. Box 09-01-5863, Guayaquil , Ecuador
- Marine Biodiscovery, School of Chemistry and Ryan Institute , National University of Ireland Galway (NUI Galway) , University Road , H91 TK33 Galway , Ireland
| | - Karla B Jaramillo
- ESPOL Escuela Superior Politécnica del Litoral, ESPOL , Centro Nacional de Acuacultura e Investigaciones Marinas , Campus Gustavo Galindo km. 30.5 vía Perimetral , P.O. Box 09-01-5863, Guayaquil , Ecuador
- Zoology, School of Natural Sciences and Ryan Institute , National University of Ireland Galway (NUI Galway) , University Road , H91 TK33 Galway , Ireland
| | - Laurence Jennings
- Marine Biodiscovery, School of Chemistry and Ryan Institute , National University of Ireland Galway (NUI Galway) , University Road , H91 TK33 Galway , Ireland
| | - Grégory Genta-Jouve
- Équipe C-TAC, UMR CNRS 8038 CiTCoM , Université Paris Descartes , 4 Avenue de l'Observatoire , 75006 Paris , France
- Unité Molécules de Communication et Adaptation des Micro-organismes (UMR 7245) , Sorbonne Universités , Muséum National d'Histoire Naturelle, CNRS, Paris , France
| | - Mercedes de la Cruz
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía , Avenida del Conocimiento 34, Parque Tecnológico de Ciencias de la Salud , E-18016 , Armilla , Granada , Spain
| | - Bastien Cautain
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía , Avenida del Conocimiento 34, Parque Tecnológico de Ciencias de la Salud , E-18016 , Armilla , Granada , Spain
| | - Fernando Reyes
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía , Avenida del Conocimiento 34, Parque Tecnológico de Ciencias de la Salud , E-18016 , Armilla , Granada , Spain
| | - Jenny Rodríguez
- ESPOL Escuela Superior Politécnica del Litoral, ESPOL , Centro Nacional de Acuacultura e Investigaciones Marinas , Campus Gustavo Galindo km. 30.5 vía Perimetral , P.O. Box 09-01-5863, Guayaquil , Ecuador
| | - Olivier P Thomas
- Marine Biodiscovery, School of Chemistry and Ryan Institute , National University of Ireland Galway (NUI Galway) , University Road , H91 TK33 Galway , Ireland
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7
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Xu LL, Hai P, Zhang SB, Xiao JF, Gao Y, Ma BJ, Fu HY, Chen YM, Yang XL. Prenylated Indole Diterpene Alkaloids from a Mine-Soil-Derived Tolypocladium sp. JOURNAL OF NATURAL PRODUCTS 2019; 82:221-231. [PMID: 30702286 DOI: 10.1021/acs.jnatprod.8b00589] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Ten new prenylated indole diterpene alkaloids, tolypocladin A-J (1-10), including four chlorinated metabolites, have been isolated from a culture of a mine-soil-derived fungus, Tolypocladium sp. XL115. The structures and absolute configurations of 1-10 were determined by spectroscopic analysis, ECD calculations, and comparison with known compounds. Compounds 1 and 8 displayed significant antimicrobial activities. In addition, compound 1 also showed weak cytotoxic activity against all tested human cancer cell lines and suppressed the growth and viability of the patient-derived HCC cells T1224.
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Affiliation(s)
- Lu-Lin Xu
- School of Pharmaceutical Sciences , South-Central University for Nationalities , Wuhan 430074 , People's Republic of China
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences , Chongqing University , Chongqing 401331 , People's Republic of China
| | - Ping Hai
- Department of Chemical Engineering , Yibin University , Yibin 644000 , People's Republic of China
| | - Shuai-Bing Zhang
- School of Pharmaceutical Sciences , South-Central University for Nationalities , Wuhan 430074 , People's Republic of China
| | - Jing-Fang Xiao
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital and Key Laboratory of Tumor Immunopathology of the Ministry of Education of China , Third Military Medical University , Chongqing 400038 , People's Republic of China
| | - Yuan Gao
- Department of Chemical Engineering , Yibin University , Yibin 644000 , People's Republic of China
| | - Bing-Ji Ma
- Department of Traditional Chinese Medicine , Henan Agricultural University , Wenhua Road 12 , Zhengzhou 450002 , People's Republic of China
| | - Hai-Yan Fu
- School of Pharmaceutical Sciences , South-Central University for Nationalities , Wuhan 430074 , People's Republic of China
| | - Ye-Miao Chen
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital and Key Laboratory of Tumor Immunopathology of the Ministry of Education of China , Third Military Medical University , Chongqing 400038 , People's Republic of China
| | - Xiao-Long Yang
- School of Pharmaceutical Sciences , South-Central University for Nationalities , Wuhan 430074 , People's Republic of China
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences , Chongqing University , Chongqing 401331 , People's Republic of China
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8
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Feng T, Gan XQ, Zhao YL, Zhang SB, Chen HP, He J, Zheng YS, Sun H, Huang R, Li ZH, Liu JK. Tricholopardins A and B, Anti-inflammatory Terpenoids from the Fruiting Bodies of Tricholoma pardinum. JOURNAL OF NATURAL PRODUCTS 2019; 82:45-50. [PMID: 30629435 DOI: 10.1021/acs.jnatprod.8b00460] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Two new Tricholoma terpenoids, tricholopardins A and B, were isolated from the fruiting bodies of the basidiomycetes Tricholoma pardinum. Their structures were elucidated by spectroscopic methods, as well as electronic circular dichroism and optical rotatory dispersion calculations. Tricholopardin A potently inhibited nitric oxide production in lipopolysaccharide-induced RAW264.7 macrophages with an IC50 of 0.08 μM. Its anti-inflammatory effects on three inflammatory mediators were also evaluated. A plausible biosynthetic pathway for these products is discussed.
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Affiliation(s)
- Tao Feng
- School of Pharmaceutical Sciences , South-Central University for Nationalities , Wuhan 430074 , People's Republic of China
| | - Xiao-Qing Gan
- School of Pharmaceutical Sciences , South-Central University for Nationalities , Wuhan 430074 , People's Republic of China
| | - Yun-Li Zhao
- State Key Laboratory of Phytochemistry and Plant Resources in West China , Kunming Institute of Botany , Kunming 650201 , People's Republic of China
| | - Shuai-Bing Zhang
- School of Pharmaceutical Sciences , South-Central University for Nationalities , Wuhan 430074 , People's Republic of China
| | - He-Ping Chen
- School of Pharmaceutical Sciences , South-Central University for Nationalities , Wuhan 430074 , People's Republic of China
| | - Juan He
- School of Pharmaceutical Sciences , South-Central University for Nationalities , Wuhan 430074 , People's Republic of China
| | - Yong-Sheng Zheng
- School of Pharmaceutical Sciences , South-Central University for Nationalities , Wuhan 430074 , People's Republic of China
| | - Huan Sun
- School of Pharmaceutical Sciences , South-Central University for Nationalities , Wuhan 430074 , People's Republic of China
| | - Rong Huang
- School of Pharmaceutical Sciences , South-Central University for Nationalities , Wuhan 430074 , People's Republic of China
| | - Zheng-Hui Li
- School of Pharmaceutical Sciences , South-Central University for Nationalities , Wuhan 430074 , People's Republic of China
| | - Ji-Kai Liu
- School of Pharmaceutical Sciences , South-Central University for Nationalities , Wuhan 430074 , People's Republic of China
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9
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Abstract
Covering: January to December 2017This review covers the literature published in 2017 for marine natural products (MNPs), with 740 citations (723 for the period January to December 2017) referring to compounds isolated from marine microorganisms and phytoplankton, green, brown and red algae, sponges, cnidarians, bryozoans, molluscs, tunicates, echinoderms, mangroves and other intertidal plants and microorganisms. The emphasis is on new compounds (1490 in 477 papers for 2017), together with the relevant biological activities, source organisms and country of origin. Reviews, biosynthetic studies, first syntheses, and syntheses that led to the revision of structures or stereochemistries, have been included. Geographic distributions of MNPs at a phylogenetic level are reported.
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Affiliation(s)
- Anthony R Carroll
- School of Environment and Science, Griffith University, Gold Coast, Australia. and Griffith Institute for Drug Discovery, Griffith University, Brisbane, Australia
| | - Brent R Copp
- School of Chemical Sciences, University of Auckland, Auckland, New Zealand
| | - Rohan A Davis
- Griffith Institute for Drug Discovery, Griffith University, Brisbane, Australia
| | - Robert A Keyzers
- Centre for Biodiscovery, School of Chemical and Physical Sciences, Victoria University of Wellington, Wellington, New Zealand
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10
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Afoullouss S, Calabro K, Genta-Jouve G, Gegunde S, Alfonso A, Nesbitt R, Morrow C, Alonso E, Botana LM, Allcock AL, Thomas OP. Treasures from the Deep: Characellides as Anti-Inflammatory Lipoglycotripeptides from the Sponge Characella pachastrelloides. Org Lett 2018; 21:246-251. [DOI: 10.1021/acs.orglett.8b03684] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Sam Afoullouss
- Marine Biodiscovery, School of Chemistry and Ryan Institute, National University of Ireland Galway (NUI Galway), University Road, H91TK33 Galway, Ireland
- Zoology, School of Natural Sciences and Ryan Institute, National University of Ireland Galway (NUI Galway), University Road, H91TK33 Galway, Ireland
| | - Kevin Calabro
- Marine Biodiscovery, School of Chemistry and Ryan Institute, National University of Ireland Galway (NUI Galway), University Road, H91TK33 Galway, Ireland
| | - Grégory Genta-Jouve
- C-TAC, COMETE UMR 8638 CNRS, Université Paris Descartes, 4 avenue de l’observatoire, 75006 Paris, France
| | - Sandra Gegunde
- Departamento de Farmacología, Facultad de Veterinaria, Universidade de Santiago de Compostela, 27002 Lugo, Spain
| | - Amparo Alfonso
- Departamento de Farmacología, Facultad de Veterinaria, Universidade de Santiago de Compostela, 27002 Lugo, Spain
| | - Robert Nesbitt
- Marine Biodiscovery, School of Chemistry and Ryan Institute, National University of Ireland Galway (NUI Galway), University Road, H91TK33 Galway, Ireland
| | - Christine Morrow
- Zoology, School of Natural Sciences and Ryan Institute, National University of Ireland Galway (NUI Galway), University Road, H91TK33 Galway, Ireland
- Department of Natural Sciences, National Museums Northern Ireland, 153 Bangor Road, Cultra BT18 0EU, Northern Ireland
| | - Eva Alonso
- Departamento de Farmacología, Facultad de Veterinaria, Universidade de Santiago de Compostela, 27002 Lugo, Spain
| | - Luis M. Botana
- Departamento de Farmacología, Facultad de Veterinaria, Universidade de Santiago de Compostela, 27002 Lugo, Spain
| | - A. Louise Allcock
- Zoology, School of Natural Sciences and Ryan Institute, National University of Ireland Galway (NUI Galway), University Road, H91TK33 Galway, Ireland
| | - Olivier P. Thomas
- Marine Biodiscovery, School of Chemistry and Ryan Institute, National University of Ireland Galway (NUI Galway), University Road, H91TK33 Galway, Ireland
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11
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Agurto G, Andrade E, Tomalá C, Domínguez C, Guillén P, Jaramillo K, Lavorato A, Condor-Lujan B, Chalén B, Avellaneda K, Thomas O, Sonnenholzner S, Sánchez-Rodríguez A, Pacheco D, Choez F, Rodríguez J. Database and WebGIS: tools for integration and access to biodiversity information of invertebrates of the marine reserve ‘El Pelado’ (REMAPE). NEOTROPICAL BIODIVERSITY 2018. [DOI: 10.1080/23766808.2018.1553380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
Affiliation(s)
- Gabriela Agurto
- Programa de Biodiversidad, Escuela Superior Politécnica del Litoral (ESPOL), Centro Nacional de Acuicultura e Investigaciones Marinas (CENAIM), Guayaquil, Ecuador
| | - Elizabeth Andrade
- Programa de Biodiversidad, Escuela Superior Politécnica del Litoral (ESPOL), Centro Nacional de Acuicultura e Investigaciones Marinas (CENAIM), Guayaquil, Ecuador
| | - Cecilia Tomalá
- Programa de Biodiversidad, Escuela Superior Politécnica del Litoral (ESPOL), Centro Nacional de Acuicultura e Investigaciones Marinas (CENAIM), Guayaquil, Ecuador
| | - Cristóbal Domínguez
- Programa de Biodiversidad, Escuela Superior Politécnica del Litoral (ESPOL), Centro Nacional de Acuicultura e Investigaciones Marinas (CENAIM), Guayaquil, Ecuador
| | - Paúl Guillén
- Programa de Biodiversidad, Escuela Superior Politécnica del Litoral (ESPOL), Centro Nacional de Acuicultura e Investigaciones Marinas (CENAIM), Guayaquil, Ecuador
- Marine Biodiscovery, School of Chemistry and Ryan Institute, National University of Ireland Galway (NUI Galway), University Road, Galway, Ireland
| | - Karla Jaramillo
- Programa de Biodiversidad, Escuela Superior Politécnica del Litoral (ESPOL), Centro Nacional de Acuicultura e Investigaciones Marinas (CENAIM), Guayaquil, Ecuador
- Zoology, School of Natural Science and Ryan Institute, National University of Ireland Galway (NUI Galway), University Road, Galway, Ireland
| | - Antonella Lavorato
- Programa de Biodiversidad, Escuela Superior Politécnica del Litoral (ESPOL), Centro Nacional de Acuicultura e Investigaciones Marinas (CENAIM), Guayaquil, Ecuador
| | - Báslavi Condor-Lujan
- Programa de Biodiversidad, Escuela Superior Politécnica del Litoral (ESPOL), Centro Nacional de Acuicultura e Investigaciones Marinas (CENAIM), Guayaquil, Ecuador
| | - Bolívar Chalén
- Programa de Biodiversidad, Escuela Superior Politécnica del Litoral (ESPOL), Centro Nacional de Acuicultura e Investigaciones Marinas (CENAIM), Guayaquil, Ecuador
| | - Karen Avellaneda
- Programa de Biodiversidad, Escuela Superior Politécnica del Litoral (ESPOL), Centro Nacional de Acuicultura e Investigaciones Marinas (CENAIM), Guayaquil, Ecuador
| | - Olivier Thomas
- Marine Biodiscovery, School of Chemistry and Ryan Institute, National University of Ireland Galway (NUI Galway), University Road, Galway, Ireland
| | - Stanislaus Sonnenholzner
- Programa de Biodiversidad, Escuela Superior Politécnica del Litoral (ESPOL), Centro Nacional de Acuicultura e Investigaciones Marinas (CENAIM), Guayaquil, Ecuador
| | - Aminael Sánchez-Rodríguez
- Departamento de Ciencias Naturales, Universidad Técnica Particular de Loja, Loja, Ecuador
- Programa de Biodiversidad, Instituto de Estudios de Régimen Seccional del Ecuador (IERSE), Universidad del Azuay Cuenca, Guayaquil, Ecuador
| | - Diego Pacheco
- Departamento de Ciencias Naturales, Universidad Técnica Particular de Loja, Loja, Ecuador
- Programa de Biodiversidad, Instituto de Estudios de Régimen Seccional del Ecuador (IERSE), Universidad del Azuay Cuenca, Guayaquil, Ecuador
| | - Francisco Choez
- Programa de Biodiversidad, Escuela Superior Politécnica del Litoral (ESPOL), Centro Nacional de Acuicultura e Investigaciones Marinas (CENAIM), Guayaquil, Ecuador
| | - Jenny Rodríguez
- Programa de Biodiversidad, Escuela Superior Politécnica del Litoral (ESPOL), Centro Nacional de Acuicultura e Investigaciones Marinas (CENAIM), Guayaquil, Ecuador
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12
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Calabro K, Chalén BE, Genta-Jouve G, Jaramillo KB, Domínguez C, de la Cruz M, Cautain B, Reyes F, Thomas OP, Rodríguez J. Callyspongidic Acids: Amphiphilic Diacids from the Tropical Eastern Pacific Sponge Callyspongia cf. californica. JOURNAL OF NATURAL PRODUCTS 2018; 81:2301-2305. [PMID: 30360624 DOI: 10.1021/acs.jnatprod.8b00683] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The first chemical study of the marine sponge Callyspongia cf. californica widely distributed along the coasts of the Tropical Eastern Pacific led to the identification of a new family of amphiphilic derivatives called callyspongidic acids. The four isolated metabolites 1-4 feature a hydrophilic diacid end opposed to both an aromatic moiety and a long alkyl chain. They were evaluated against a panel of pathogenic microbes and seven tumoral cell lines, displaying moderate inhibitory properties against the A2058 melanoma cell line with an IC50 of 3.2 μM for callyspongidic acid C13:0 (2).
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Affiliation(s)
- Kevin Calabro
- Marine Biodiscovery, School of Chemistry and Ryan Institute , National University of Ireland Galway (NUI Galway) , University Road , H91 TK33 Galway , Ireland
| | - Bolivar E Chalén
- ESPOL Escuela Superior Politécnica del Litoral, Centro Nacional de Acuacultura e Investigaciones Marinas , Campus Gustavo Galindo km. 30.5 vía Perimetral, P.O. Box 09-01-5863 Guayaquil , Ecuador
| | - Grégory Genta-Jouve
- C-TAC UMR-CNRS 8638 COMETE , Université Paris Descartes , 4 Avenue de l'Observatoire , 75270 Paris , Cedex 06 , France
| | - Karla B Jaramillo
- ESPOL Escuela Superior Politécnica del Litoral, Centro Nacional de Acuacultura e Investigaciones Marinas , Campus Gustavo Galindo km. 30.5 vía Perimetral, P.O. Box 09-01-5863 Guayaquil , Ecuador
- Zoology, School of Natural Sciences and Ryan Institute , National University of Ireland Galway , University Road , H91 TK33 Galway , Ireland
| | - Cristóbal Domínguez
- ESPOL Escuela Superior Politécnica del Litoral, Centro Nacional de Acuacultura e Investigaciones Marinas , Campus Gustavo Galindo km. 30.5 vía Perimetral, P.O. Box 09-01-5863 Guayaquil , Ecuador
| | - Mercedes de la Cruz
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía , Avenida del Conocimiento 34 , Parque Tecnológico de Ciencias de la Salud, E-18016 , Armilla, Granada , Spain
| | - Bastien Cautain
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía , Avenida del Conocimiento 34 , Parque Tecnológico de Ciencias de la Salud, E-18016 , Armilla, Granada , Spain
| | - Fernando Reyes
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía , Avenida del Conocimiento 34 , Parque Tecnológico de Ciencias de la Salud, E-18016 , Armilla, Granada , Spain
| | - Olivier P Thomas
- Marine Biodiscovery, School of Chemistry and Ryan Institute , National University of Ireland Galway (NUI Galway) , University Road , H91 TK33 Galway , Ireland
| | - Jenny Rodríguez
- ESPOL Escuela Superior Politécnica del Litoral, Centro Nacional de Acuacultura e Investigaciones Marinas , Campus Gustavo Galindo km. 30.5 vía Perimetral, P.O. Box 09-01-5863 Guayaquil , Ecuador
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13
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Zhang SB, Huang Y, Chen HP, Li ZH, Wu B, Feng T, Liu JK. Confluenines A–F, N -oxidized l -isoleucine derivatives from the edible mushroom Albatrellus confluens. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.07.033] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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14
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Guillen PO, Gegunde S, Jaramillo KB, Alfonso A, Calabro K, Alonso E, Rodriguez J, Botana LM, Thomas OP. Zoanthamine Alkaloids from the Zoantharian Zoanthus cf. pulchellus and Their Effects in Neuroinflammation. Mar Drugs 2018; 16:md16070242. [PMID: 30036989 PMCID: PMC6071026 DOI: 10.3390/md16070242] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2018] [Revised: 07/15/2018] [Accepted: 07/19/2018] [Indexed: 01/26/2023] Open
Abstract
Two new zoanthamine alkaloids, namely 3-acetoxynorzoanthamine (1) and 3-acetoxyzoanthamine (2), have been isolated from the zoantharian Zoanthus cf. pulchellus collected off the coast of the Santa Elena Peninsula, Ecuador, together with three known derivatives: zoanthamine, norzoanthamine, and 3-hydroxynorzoanthamine. The chemical structures of 1 and 2 were determined by interpretation of their 1D and 2D NMR data and comparison with literature data. This is the first report of zoanthamine-type alkaloids from Zoanthus cf. pulchellus collected in the Tropical Eastern Pacific. The neuroinflammatory activity of all the isolated compounds was evaluated in microglia BV-2 cells and high inhibitory effects were observed in reactive oxygen species (ROS) and nitric oxide (NO) generation.
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Affiliation(s)
- Paul O Guillen
- ESPOL Escuela Superior Politécnica del Litoral, ESPOL, Centro Nacional de Acuacultura e Investigaciones Marinas, Campus Gustavo Galindo km. 30.5 vía Perimetral, P.O. Box 09-01-5863 Guayaquil, Ecuador.
- Marine Biodiscovery, School of Chemistry and Ryan Institute, National University of Ireland Galway (NUI Galway), University Road, H91 TK33 Galway, Ireland.
| | - Sandra Gegunde
- Departamento de Farmacología, Facultad de Veterinaria, Universidade de Santiago de Compostela, 27002 Lugo, Spain.
| | - Karla B Jaramillo
- ESPOL Escuela Superior Politécnica del Litoral, ESPOL, Centro Nacional de Acuacultura e Investigaciones Marinas, Campus Gustavo Galindo km. 30.5 vía Perimetral, P.O. Box 09-01-5863 Guayaquil, Ecuador.
- Zoology, School of Natural Sciences and Ryan Institute, National University of Ireland Galway (NUI Galway), University Road, H91 TK33 Galway, Ireland.
| | - Amparo Alfonso
- Departamento de Farmacología, Facultad de Veterinaria, Universidade de Santiago de Compostela, 27002 Lugo, Spain.
| | - Kevin Calabro
- Marine Biodiscovery, School of Chemistry and Ryan Institute, National University of Ireland Galway (NUI Galway), University Road, H91 TK33 Galway, Ireland.
| | - Eva Alonso
- Departamento de Farmacología, Facultad de Veterinaria, Universidade de Santiago de Compostela, 27002 Lugo, Spain.
| | - Jenny Rodriguez
- ESPOL Escuela Superior Politécnica del Litoral, ESPOL, Centro Nacional de Acuacultura e Investigaciones Marinas, Campus Gustavo Galindo km. 30.5 vía Perimetral, P.O. Box 09-01-5863 Guayaquil, Ecuador.
| | - Luis M Botana
- Departamento de Farmacología, Facultad de Veterinaria, Universidade de Santiago de Compostela, 27002 Lugo, Spain.
| | - Olivier P Thomas
- Marine Biodiscovery, School of Chemistry and Ryan Institute, National University of Ireland Galway (NUI Galway), University Road, H91 TK33 Galway, Ireland.
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15
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Jaramillo KB, Reverter M, Guillen PO, McCormack G, Rodriguez J, Sinniger F, Thomas OP. Assessing the Zoantharian Diversity of the Tropical Eastern Pacific through an Integrative Approach. Sci Rep 2018; 8:7138. [PMID: 29739963 PMCID: PMC5940898 DOI: 10.1038/s41598-018-25086-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Accepted: 04/13/2018] [Indexed: 11/09/2022] Open
Abstract
Zoantharians represent a group of marine invertebrates widely distributed from shallow waters to the deep sea. Despite a high diversity and abundance in the rocky reefs of the Pacific Ocean, very few studies have been reported on the diversity of this group in the Tropical Eastern Pacific coasts. While molecular techniques recently clarified some taxonomic relationships within the order, the taxonomy of zoantharians is still highly challenging due to a lack of clear morphological characters and confusing use of different data in previous studies. Our first insight into the zoantharian diversity at El Pelado Marine Protected Area - Ecuador led to the identification of six species: Terrazoanthus patagonichus; Terrazoanthus sp.; Antipathozoanthus hickmani; Parazoanthus darwini; Zoanthus cf. pulchellus; and Zoanthus cf. sociatus. A metabolomic approach using UHPLC-HRMS was proven to be very efficient as a complementary tool in the systematics of these species and specialized metabolites of the ecdysteroid and alkaloid families were identified as key biomarkers for interspecific discrimination. These results show good promise for an application of this integrative approach to other zoantharians.
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Affiliation(s)
- Karla B Jaramillo
- Escuela Superior Politécnica del Litoral (ESPOL), Centro Nacional de Acuicultura e Investigaciones Marinas (CENAIM), Campus Gustavo Galindo Km. 30.5 Vía Perimetral, P.O. Box 09-01-5863, Guayaquil, Ecuador.,Zoology, School of Natural Science and Ryan Institute, National University of Ireland Galway (NUI Galway), University Road, H91 TK33, Galway, Ireland
| | - Miriam Reverter
- Marine Biodiscovery, School of Chemistry and Ryan Institute, National University of Ireland Galway (NUI Galway), University Road, H91 TK33, Galway, Ireland
| | - Paul O Guillen
- Escuela Superior Politécnica del Litoral (ESPOL), Centro Nacional de Acuicultura e Investigaciones Marinas (CENAIM), Campus Gustavo Galindo Km. 30.5 Vía Perimetral, P.O. Box 09-01-5863, Guayaquil, Ecuador.,Marine Biodiscovery, School of Chemistry and Ryan Institute, National University of Ireland Galway (NUI Galway), University Road, H91 TK33, Galway, Ireland
| | - Grace McCormack
- Zoology, School of Natural Science and Ryan Institute, National University of Ireland Galway (NUI Galway), University Road, H91 TK33, Galway, Ireland
| | - Jenny Rodriguez
- Escuela Superior Politécnica del Litoral (ESPOL), Centro Nacional de Acuicultura e Investigaciones Marinas (CENAIM), Campus Gustavo Galindo Km. 30.5 Vía Perimetral, P.O. Box 09-01-5863, Guayaquil, Ecuador
| | - Frédéric Sinniger
- Tropical Biosphere Research Center, University of the Ryukyus, Sesoko Island, Okinawa, 905-0227, Japan.
| | - Olivier P Thomas
- Marine Biodiscovery, School of Chemistry and Ryan Institute, National University of Ireland Galway (NUI Galway), University Road, H91 TK33, Galway, Ireland.
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Matsumura K, Taniguchi T, Reimer JD, Noguchi S, Fujita MJ, Sakai R. KB343, a Cyclic Tris-guanidine Alkaloid from Palauan Zoantharian Epizoanthus illoricatus. Org Lett 2018; 20:3039-3043. [DOI: 10.1021/acs.orglett.8b01069] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ken Matsumura
- Faculty and Graduate School of Fisheries Sciences, Hokkaido University, 3-1-1 minato-cho, Hakodate, Hokkaido 041-8611, Japan
| | - Tohru Taniguchi
- Frontier Research Center for Advanced Material and Life Science, Faculty of Advanced Life Science, Hokkaido University, Kita 21 Nishi 11, Sapporo 001-0021, Japan
| | - James D. Reimer
- University of the Ryukyus Senbaru 1, Nishihara, Okinawa 903-0213, Japan
| | - Shuntaro Noguchi
- Faculty and Graduate School of Fisheries Sciences, Hokkaido University, 3-1-1 minato-cho, Hakodate, Hokkaido 041-8611, Japan
| | - Masaki J. Fujita
- Faculty and Graduate School of Fisheries Sciences, Hokkaido University, 3-1-1 minato-cho, Hakodate, Hokkaido 041-8611, Japan
| | - Ryuichi Sakai
- Faculty and Graduate School of Fisheries Sciences, Hokkaido University, 3-1-1 minato-cho, Hakodate, Hokkaido 041-8611, Japan
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17
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Ecdysonelactones, Ecdysteroids from the Tropical Eastern Pacific Zoantharian Antipathozoanthus hickmani. Mar Drugs 2018; 16:md16020058. [PMID: 29439482 PMCID: PMC5852486 DOI: 10.3390/md16020058] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Revised: 02/01/2018] [Accepted: 02/08/2018] [Indexed: 11/17/2022] Open
Abstract
Despite a large occurrence, especially over the Pacific Ocean, the chemical diversity of marine invertebrates belonging to the order Zoantharia is largely underexplored. For the two species of the genus Antipathozoanthus no chemical study has been reported so far. The first chemical investigation of Antipathozoanthus hickmani collected at the Marine Protected Area “El Pelado”, Santa Elena, Ecuador, led to the isolation of four new ecdysteroid derivatives named ecdysonelactones. The structures of ecdysonelactones A–D (1–4) were determined based on their spectroscopy data, including 1D and 2D NMR and HRMS. The four compounds of this family of ecdysteroids feature an unprecedented γ-lactone fused at the C-2/C-3 position of ring A. These derivatives exhibited neither antimicrobial nor cytotoxic activities.
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18
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Zhang S, Huang Y, He S, Chen H, Li Z, Wu B, Zuo J, Feng T, Liu J. Albatredines A and B, a pair of epimers with unusual natural heterocyclic skeletons from edible mushroom Albatrellus confluens. RSC Adv 2018; 8:23914-23918. [PMID: 35540281 PMCID: PMC9081739 DOI: 10.1039/c8ra04226h] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Accepted: 06/07/2018] [Indexed: 11/21/2022] Open
Abstract
A chemical study of the common species Albatrellus confluens present in Yunnan province, southwest China led to the identification of a pair of epimers named albatredines A (1) and B (2). They feature a natural unprecedented 1,2,4-oxadiazolidin-5-one skeleton. The acyl substitution pattern and complete configurational assignments were deduced from the comparison between experimental and theoretical 13C NMR and ECD data, respectively. Bioassay results showed that compound 1 exhibited a weak immunosuppressive activity against the concanavalin A-induced T lymphocyte cell proliferation (IC50 2.99 μM). A chemical study of the common species Albatrellus confluens present in Yunnan province, southwest China led to the identification of a pair of epimers named albatredines A (1) and B (2).![]()
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Affiliation(s)
- Shuaibing Zhang
- School of Pharmaceutical Sciences
- South-Central University for Nationalities
- Wuhan 430074
- China
| | - Ying Huang
- Leibniz Research Group – Biobricks of Microbial Natural Product Syntheses
- Leibniz Institute for Natural Product Research and Infection Biology (HKI)
- 07745 Jena
- Germany
| | - Shijun He
- State Key Laboratory of Drug Research
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai 201203
- China
| | - Heping Chen
- School of Pharmaceutical Sciences
- South-Central University for Nationalities
- Wuhan 430074
- China
| | - Zhenghui Li
- School of Pharmaceutical Sciences
- South-Central University for Nationalities
- Wuhan 430074
- China
| | - Bin Wu
- School of Pharmaceutical Sciences
- South-Central University for Nationalities
- Wuhan 430074
- China
| | - Jianping Zuo
- State Key Laboratory of Drug Research
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai 201203
- China
| | - Tao Feng
- School of Pharmaceutical Sciences
- South-Central University for Nationalities
- Wuhan 430074
- China
| | - Jikai Liu
- School of Pharmaceutical Sciences
- South-Central University for Nationalities
- Wuhan 430074
- China
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19
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Abstract
A personal selection of 32 recent papers is presented covering various aspects of current developments in bioorganic chemistry and novel natural products such as macrophilone A from Macrorhynchia philippina.
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Affiliation(s)
- Robert A Hill
- School of Chemistry, Glasgow University, Glasgow, UKG12 8QQ.
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