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Xu J, Wang M, Liu Z, Zhang W, Ma J, Li G, Li P. Terpenoids from the Sponge Sarcotragus sp. Collected in the South China Sea. JOURNAL OF NATURAL PRODUCTS 2023; 86:330-339. [PMID: 36734533 DOI: 10.1021/acs.jnatprod.2c00937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Sarcotragusolides A-D (1-4), four new butenolide sesterterpenes featuring a rare methyl-transferred 6/6/6-tricyclic fused ring system with a butyrolactone moiety, and echinohalimane B (8), an unprecedented monocyclic diterpenoid featuring a 2,7-ring-opened halimane-type skeleton, were isolated from the sponge Sarcotragus sp. A γ-hydroxybutenolide sesterterpene derivative (5), a new scalarane sesterterpene (7), a new subersin-type diterpenoid (10), and two known terpenoids were also isolated and identified. The discovery of sarcotragusolides C and D (3 and 4) with an unprecedented inversion of configuration implied a distinct biosynthetic pathway. The structures of these compounds were elucidated based on their spectroscopic data, single-crystal X-ray diffraction, chemical derivatization, and quantum chemical calculations. Compounds 1a, 1b, and 2 presented modest cytotoxic activities against several human cancer cell lines.
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Affiliation(s)
- Jixiang Xu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, People's Republic of China
- Laboratory of Marine Drugs and Biological Products, Pilot National Laboratory for MarineScience and Technology, Qingdao 266235, People's Republic of China
| | - Mengxue Wang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, People's Republic of China
- Laboratory of Marine Drugs and Biological Products, Pilot National Laboratory for MarineScience and Technology, Qingdao 266235, People's Republic of China
| | - Zhaonan Liu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, People's Republic of China
- Laboratory of Marine Drugs and Biological Products, Pilot National Laboratory for MarineScience and Technology, Qingdao 266235, People's Republic of China
| | - Wenjie Zhang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, People's Republic of China
- Laboratory of Marine Drugs and Biological Products, Pilot National Laboratory for MarineScience and Technology, Qingdao 266235, People's Republic of China
| | - Junye Ma
- State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology and Center for Excellence in Life and Palaeoenvironment, Chinese Academy of Sciences (CAS), Nanjing 210008, People's Republic of China
| | - Guoqiang Li
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, People's Republic of China
- Laboratory of Marine Drugs and Biological Products, Pilot National Laboratory for MarineScience and Technology, Qingdao 266235, People's Republic of China
| | - Pinglin Li
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, People's Republic of China
- Laboratory of Marine Drugs and Biological Products, Pilot National Laboratory for MarineScience and Technology, Qingdao 266235, People's Republic of China
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Chakraborty K, Krishnan S, Joy M. Euryfuranyl compounds from edible species of cuttlefish as potential anti-inflammatory leads attenuating NF-κB signaling cascade in lipopolysaccharide-activated macrophages. Bioorg Chem 2021; 114:105052. [PMID: 34146918 DOI: 10.1016/j.bioorg.2021.105052] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2020] [Accepted: 06/01/2021] [Indexed: 01/17/2023]
Abstract
Nuclear factor-kappa B is an inducible transcription element, which was considered as an important regulator of immune functions, and plays a critical role to induce inflammatory reactions. In this study, we have demonstrated the anti-inflammatory potentials of previously undescribed (4 → 13)-abeo-euryfuranyls (1-2) from the spineless cuttlefish Sepiella inermis in lipopolysaccharide-stimulated macrophages. The euryfuranyl bearing (4 → 13)-abeo-euryfuranyl-2-ene-6-hydroxymethyl-propanoate framework (compound 1) displayed prominent inhibitory effects against pro-inflammatory cyclooxygenase-2 (IC50 0.36 mM) and 5-lipoxygenase (IC50 0.70 mM). Additionally, it suppressed the generation of inducible nitric oxide synthase along with cyclooxygenase-2 and 5-lipoxygenase in lipopolysaccharide-stimulated macrophages. The euryfuranyl analogue (1) down-regulated the mRNA expression of cyclooxygenase-2 and nuclear factor-κB signaling pathway in lipopolysaccharide-activated macrophage cells by hindering the degradation of inhibitor-κB proteins, and transfer of the subunit NF-κB p65 to the nucleus from the cytosol. These results demonstrated that the euryfuranyl analogue could be explored as a promising anti-inflammatory therapeutic lead attenuating nuclear factor-κB signaling cascade.
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Affiliation(s)
- Kajal Chakraborty
- Marine Biotechnology Division, Central Marine Fisheries Research Institute, Ernakulam North, P.B. No. 1603, Cochin 682018, Kerala, India.
| | - Soumya Krishnan
- Marine Biotechnology Division, Central Marine Fisheries Research Institute, Ernakulam North, P.B. No. 1603, Cochin 682018, Kerala, India
| | - Minju Joy
- Marine Biotechnology Division, Central Marine Fisheries Research Institute, Ernakulam North, P.B. No. 1603, Cochin 682018, Kerala, India
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3
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Poock C, Kalesse M. Total Synthesis and Structure Revision of Halioxepine. Chemistry 2021; 27:1615-1619. [PMID: 33215739 PMCID: PMC7898713 DOI: 10.1002/chem.202004847] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 11/19/2020] [Indexed: 02/04/2023]
Abstract
The first total synthesis of halioxepine is accomplished using a 1,4-addition for constructing the quaternary center at C10 and a halo etherification for the generation of the tertiary ether at C7. The correct structure of halioxepine was determined by assembling different enantiomeric building blocks and by changing the relative configuration between C10 and C15.
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Affiliation(s)
- Caroline Poock
- Institute for Organic ChemistryGottfried Wilhelm Leibniz Universität HannoverSchneiderberg 1B30167HannoverGermany
| | - Markus Kalesse
- Institute for Organic ChemistryGottfried Wilhelm Leibniz Universität HannoverSchneiderberg 1B30167HannoverGermany
- Centre of Biomolecular Drug Research (BMWZ)Gottfried Wilhelm Leibniz Universität HannoverSchneiderberg 3830167HannoverGermany
- Helmholtz Centre for Infection Research (HZI)Inhoffenstrasse 738124BraunschweigGermany
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Avila C, Angulo-Preckler C. Bioactive Compounds from Marine Heterobranchs. Mar Drugs 2020; 18:657. [PMID: 33371188 PMCID: PMC7767343 DOI: 10.3390/md18120657] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2020] [Revised: 12/05/2020] [Accepted: 12/07/2020] [Indexed: 12/22/2022] Open
Abstract
The natural products of heterobranch molluscs display a huge variability both in structure and in their bioactivity. Despite the considerable lack of information, it can be observed from the recent literature that this group of animals possesses an astonishing arsenal of molecules from different origins that provide the molluscs with potent chemicals that are ecologically and pharmacologically relevant. In this review, we analyze the bioactivity of more than 450 compounds from ca. 400 species of heterobranch molluscs that are useful for the snails to protect themselves in different ways and/or that may be useful to us because of their pharmacological activities. Their ecological activities include predator avoidance, toxicity, antimicrobials, antifouling, trail-following and alarm pheromones, sunscreens and UV protection, tissue regeneration, and others. The most studied ecological activity is predation avoidance, followed by toxicity. Their pharmacological activities consist of cytotoxicity and antitumoral activity; antibiotic, antiparasitic, antiviral, and anti-inflammatory activity; and activity against neurodegenerative diseases and others. The most studied pharmacological activities are cytotoxicity and anticancer activities, followed by antibiotic activity. Overall, it can be observed that heterobranch molluscs are extremely interesting in regard to the study of marine natural products in terms of both chemical ecology and biotechnology studies, providing many leads for further detailed research in these fields in the near future.
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Affiliation(s)
- Conxita Avila
- Department of Evolutionary Biology, Ecology, and Environmental Sciences, Biodiversity Research Institute (IrBIO), Faculty of Biology, University of Barcelona, Av. Diagonal 643, 08028 Barcelona, Catalonia, Spain;
| | - Carlos Angulo-Preckler
- Department of Evolutionary Biology, Ecology, and Environmental Sciences, Biodiversity Research Institute (IrBIO), Faculty of Biology, University of Barcelona, Av. Diagonal 643, 08028 Barcelona, Catalonia, Spain;
- Norwegian College of Fishery Science, UiT The Arctic University of Norway, Hansine Hansens veg 18, 9019 Tromsø, Norway
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Chakraborty K, Joy M. High-value compounds from the molluscs of marine and estuarine ecosystems as prospective functional food ingredients: An overview. Food Res Int 2020; 137:109637. [PMID: 33233216 PMCID: PMC7457972 DOI: 10.1016/j.foodres.2020.109637] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 08/02/2020] [Accepted: 08/21/2020] [Indexed: 12/20/2022]
Abstract
Reviewed enthnomedical, nutritive and pharmacological profiles of molluscs. Gastropods and bivalves are potential sources of functional food. More than 1334 bioactive metabolites were reported from total of about 1287 publications. Molluscan derived metabolites were mostly belonged to terpenoids and sterols. Number of patents were increased to more than 30% during 2016–2019.
Extensive biodiversity and availability of marine and estuarine molluscs, along with their their wide-range of utilities as food and nutraceutical resources developed keen attention of the food technologists and dieticians, particularly during the recent years. The current review comprehensively summarized the nutritional qualities, functional food attributes, and bioactive properties of these organisms. Among the phylum mollusca, Cephalopoda, Bivalvia, and Gastropoda were mostly reported for their nutraceutical applications and bioactive properties. The online search tools, like Scifinder/Science Direct/PubMed/Google Scholar/MarinLit database and marine natural product reports (1984–2019) were used to comprehend the information about the molluscs. More than 1334 secondary metabolites were reported from marine molluscs between the periods from 1984 to 2019. Among various classes of specialized metabolites, terpenes were occupied by 55% in gastropods, whereas sterols occupied 41% in bivalves. The marketed nutraceuticals, such as CadalminTM green mussel extract (Perna viridis) and Lyprinol® (Perna canaliculus) were endowed with potential anti-inflammatory activities, and were used against arthritis. Molluscan-derived therapeutics, for example, ziconotide was used as an analgesic, and elisidepsin was used in the treatment of cancer. Greater numbers of granted patents (30%) during 2016–2019 recognized the increasing importance of bioactive compounds from molluscs. Consumption of molluscs as daily diets could be helpful in the enhancement of immunity, and reduce the risk of several ailments. The present review comprehended the high value compounds and functional food ingredients from marine and estuarine molluscs.
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Affiliation(s)
- Kajal Chakraborty
- Marine Biotechnology Division, Central Marine Fisheries Research Institute, Ernakulam North, P.B. No. 1603, Cochin-682018, Kerala, India.
| | - Minju Joy
- Marine Biotechnology Division, Central Marine Fisheries Research Institute, Ernakulam North, P.B. No. 1603, Cochin-682018, Kerala, India
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6
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Avila C. Terpenoids in Marine Heterobranch Molluscs. Mar Drugs 2020; 18:md18030162. [PMID: 32183298 PMCID: PMC7143877 DOI: 10.3390/md18030162] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 03/11/2020] [Accepted: 03/11/2020] [Indexed: 12/13/2022] Open
Abstract
Heterobranch molluscs are rich in natural products. As other marine organisms, these gastropods are still quite unexplored, but they provide a stunning arsenal of compounds with interesting activities. Among their natural products, terpenoids are particularly abundant and diverse, including monoterpenoids, sesquiterpenoids, diterpenoids, sesterterpenoids, triterpenoids, tetraterpenoids, and steroids. This review evaluates the different kinds of terpenoids found in heterobranchs and reports on their bioactivity. It includes more than 330 metabolites isolated from ca. 70 species of heterobranchs. The monoterpenoids reported may be linear or monocyclic, while sesquiterpenoids may include linear, monocyclic, bicyclic, or tricyclic molecules. Diterpenoids in heterobranchs may include linear, monocyclic, bicyclic, tricyclic, or tetracyclic compounds. Sesterterpenoids, instead, are linear, bicyclic, or tetracyclic. Triterpenoids, tetraterpenoids, and steroids are not as abundant as the previously mentioned types. Within heterobranch molluscs, no terpenoids have been described in this period in tylodinoideans, cephalaspideans, or pteropods, and most terpenoids have been found in nudibranchs, anaspideans, and sacoglossans, with very few compounds in pleurobranchoideans and pulmonates. Monoterpenoids are present mostly in anaspidea, and less abundant in sacoglossa. Nudibranchs are especially rich in sesquiterpenes, which are also present in anaspidea, and in less numbers in sacoglossa and pulmonata. Diterpenoids are also very abundant in nudibranchs, present also in anaspidea, and scarce in pleurobranchoidea, sacoglossa, and pulmonata. Sesterterpenoids are only found in nudibranchia, while triterpenoids, carotenoids, and steroids are only reported for nudibranchia, pleurobranchoidea, and anaspidea. Many of these compounds are obtained from their diet, while others are biotransformed, or de novo biosynthesized by the molluscs. Overall, a huge variety of structures is found, indicating that chemodiversity correlates to the amazing biodiversity of this fascinating group of molluscs.
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Affiliation(s)
- Conxita Avila
- Department of Evolutionary Biology, Ecology, and Environmental Sciences, and Biodiversity Research Institute (IrBIO), Faculty of Biology, University of Barcelona, Av. Diagonal 643, 08028 Barcelona, Spain
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Joy M, Chakraborty K. Antioxidative and anti-inflammatory pyranoids and isochromenyl analogues from Corbiculid bivalve clam, Villorita cyprinoides. Food Chem 2018; 251:125-134. [PMID: 29426418 DOI: 10.1016/j.foodchem.2018.01.059] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Revised: 01/03/2018] [Accepted: 01/06/2018] [Indexed: 12/21/2022]
Abstract
Bivalve black clam, Villorita cyprinoides is traditional seafood in Southwestern coast of Arabian Sea. In this study, bioactivity-guided purification of ethyl acetate:methanol extract of black clam was carried out. Two irregular meroterpenoids {tetrahydro-3-methoxy-5-((E)-8,12-dimethyloct-8-enyl)-pyran-2-one (1) and dihydro-5-(8-(9,12-dihydro-8-methyl-11-propyl-2H-pyran-8-yl)-ethyl)-furan-2(3H)-one (2)} and two hexahydro-isochromenyl-meroterpenoids (3-4) were identified. The structures were characterized by detailed spectroscopy and their antioxidant/anti-inflammatory potentials were evaluated. Compound 2 registered significantly greater 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging ability (IC50 <0.65 mg/mL) than other analogues (IC50 ≥0.70 mg/mL). Ferrous ion (Fe2+) chelating ability was higher for 1-2 (IC50 ∼0.84 mg/mL) than α-tocopherol (IC50 0.89 mg/mL). The 5-lipoxygenase inhibitory potential of furano-meroterpenoid analogue, 2 (IC50 0.76 mg/mL) was greater than other compounds (IC50 >0.90 mg/mL). An optimum hydrophobic-hydrophilic balance of furano-meroterpenoid and lesser steric bulk manifested towards its greater bioactivities compared to other compounds. These anti-inflammatory and antioxidant leads could be used as potential functional food components.
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Affiliation(s)
- Minju Joy
- Marine Bioprospecting Section of Marine Biotechnology Division, Central Marine Fisheries Research Institute, Ernakulam North, P.B. No. 1603, Cochin 682018, Kerala, India
| | - Kajal Chakraborty
- Marine Bioprospecting Section of Marine Biotechnology Division, Central Marine Fisheries Research Institute, Ernakulam North, P.B. No. 1603, Cochin 682018, Kerala, India.
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Abstract
Covering: up to the end of February 2017Nudibranchs have attracted the attention of natural product researchers due to the potential for discovery of bioactive metabolites, in conjunction with the interesting predator-prey chemical ecological interactions that are present. This review covers the literature published on natural products isolated from nudibranchs up to February 2017 with species arranged taxonomically. Selected examples of metabolites obtained from nudibranchs across the full range of taxa are discussed, including their origins (dietary or biosynthetic) if known and biological activity.
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Affiliation(s)
- Lewis J Dean
- School of Science, University of Waikato, Hamilton 3240, New Zealand.
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Torii M, Kato H, Hitora Y, Angkouw ED, Mangindaan REP, de Voogd NJ, Tsukamoto S. Lamellodysidines A and B, Sesquiterpenes Isolated from the Marine Sponge Lamellodysidea herbacea. JOURNAL OF NATURAL PRODUCTS 2017; 80:2536-2541. [PMID: 28841316 DOI: 10.1021/acs.jnatprod.7b00610] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Four new sesquiterpenes, lamellodysidines A and B, O,O-dimethyllingshuiolide A, and 11-epi-O,O-dimethyllingshuiolide A (1-4), were obtained from the marine sponge, Lamellodysidea herbacea, collected in Indonesia. Their planar structures were elucidated by analysis of spectroscopic data. The absolute configurations of the new compounds were determined by the calculated ECD spectra. Compound 1 has a unique carbon framework, and 2 is a new nitrogenous sesquiterpene.
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Affiliation(s)
- Masumi Torii
- Graduate School of Pharmaceutical Sciences, Kumamoto University , Kumamoto 862-0973, Japan
| | - Hikaru Kato
- Graduate School of Pharmaceutical Sciences, Kumamoto University , Kumamoto 862-0973, Japan
| | - Yuki Hitora
- Graduate School of Pharmaceutical Sciences, Kumamoto University , Kumamoto 862-0973, Japan
| | - Esther D Angkouw
- Faculty of Fisheries and Marine Science, Sam Ratulangi University , Kampus Bahu, Manado 95115, Indonesia
| | - Remy E P Mangindaan
- Faculty of Fisheries and Marine Science, Sam Ratulangi University , Kampus Bahu, Manado 95115, Indonesia
| | - Nicole J de Voogd
- Naturalis Biodiversity Center, P.O. Box 9517, 2300 RA Leiden, The Netherlands
| | - Sachiko Tsukamoto
- Graduate School of Pharmaceutical Sciences, Kumamoto University , Kumamoto 862-0973, Japan
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Previously undescribed antioxidative and anti-inflammatory chromenyls bearing 3H-isochromenone and furanyl-2H-chromenyl skeletons from the venerid clam, Paphia malabarica. Med Chem Res 2017. [DOI: 10.1007/s00044-017-1886-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Nonhalogenated Heterotricyclic Sesquiterpenes From Marine Origin I. STUDIES IN NATURAL PRODUCTS CHEMISTRY 2017. [DOI: 10.1016/b978-0-444-63931-8.00007-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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12
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Paz C, Burgos V, Suarez S, Baggio R. A monoclinic form of dendocarbin A: a borderline case of one-dimensional isostructural polymorphism. ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY 2015; 71:294-7. [PMID: 25836288 DOI: 10.1107/s2053229615004994] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2015] [Accepted: 03/11/2015] [Indexed: 11/10/2022]
Abstract
The title compound, dendocarbin A [systematic name: (1R,5aS,9aS,9bR)-1-hydroxy-6,6,9a-trimethyldodecahydronaphtho[1,2-c]furan-3-one], C15H22O3, is a sesquiterpene lactone isolated from Drimys winteri var chilensis. The monoclinic phase described herein displays an identical molecular structure to the orthorhombic phase that we reported previously [Paz Robles et al. (2014). Acta Cryst. C70, 1007-1010], while varying significantly in chain pitch, and can thus be considered as a borderline case of one-dimensional isostructural polymorphism.
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Affiliation(s)
- Cristian Paz
- Departamento de Ciencias Químicas y Recursos Naturales, Facultad de Ingeniería, Universidad de La Frontera, Temuco, Chile
| | - Viviana Burgos
- Departamento de Ciencias Químicas y Recursos Naturales, Facultad de Ingeniería, Universidad de La Frontera, Temuco, Chile
| | - Sebastián Suarez
- Departamento de Química Inorgánica, Analítica y Química, Física/INQUIMAE-CONICET, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Ricardo Baggio
- Gerencia de Investigación y Aplicaciones, Centro Atómico Constituyentes, Comisión Nacional de Energía Atómica, Buenos Aires, Argentina
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Paz Robles C, Burgos V, Suarez S, Baggio R. Dendocarbin A: a sesquiterpene lactone from Drimys winteri. ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY 2014; 70:1007-10. [PMID: 25370095 DOI: 10.1107/s205322961402155x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2014] [Accepted: 09/29/2014] [Indexed: 11/10/2022]
Abstract
The natural compound dendocarbin A, C15H22O3, is a sesquiterpene lactone isolated for the first time from Drimys winteri for var chilensis. The compound crystallizes in the orthorhombic space group P2₁2₁2₁ and its X-ray crystal structure confirmed the S/R character of the chiral centres at C-5/C-10 and C-9/C-11, respectively. The α-OH group at C-11 was found to be involved in intermolecular hydrogen bonding, defining chains along the <100> 2₁ screw axis.
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Affiliation(s)
- Cristian Paz Robles
- Departamento de Ciencias Químicas y Recursos Naturales, Facultad de Ingeniería, Universidad de La Frontera, Temuco, Chile
| | - Viviana Burgos
- Departamento de Ciencias Químicas y Recursos Naturales, Facultad de Ingeniería, Universidad de La Frontera, Temuco, Chile
| | - Sebastián Suarez
- Departamento de Qumica Inorgnica, Analtica y Qumica, Fsica/INQUIMAE-CONICET, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Ricardo Baggio
- Gerencia de Investigación y Aplicaciones, Centro Atómico Constituyentes, Comisión Nacional de Energía Atómica, Buenos Aires, Argentina
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Bürki C, Bonjoch J, Bradshaw B, Villa G, Renaud P. Total Synthesis of Aignopsanes, A Class of Sesquiterpenes: (+)-Aignopsanoic Acid A, (−)-Methyl Aignopsanoate A, and (−)-Isoaignopsanoic A. Chemistry 2014; 21:395-401. [DOI: 10.1002/chem.201404766] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2014] [Indexed: 11/05/2022]
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Villa G, Bradshaw B, Bürki C, Bonjoch J, Renaud P. Synthesis of the all-cis-trimethyldecalin fragment of unusual terpenes by radical-mediated protonolysis of an alkylboron derivative. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.06.075] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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16
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He WF, Li Y, Feng MT, Gavagnin M, Mollo E, Mao SC, Guo YW. New isoquinolinequinone alkaloids from the South China Sea nudibranch Jorunna funebris and its possible sponge-prey Xestospongia sp. Fitoterapia 2014; 96:109-14. [DOI: 10.1016/j.fitote.2014.04.011] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2014] [Revised: 04/10/2014] [Accepted: 04/12/2014] [Indexed: 11/17/2022]
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17
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Rajaram S, Ramulu U, Ramesh D, Srikanth D, Bhattacharya P, Prabhakar P, Kalivendi SV, Babu KS, Venkateswarlu Y, Navath S. Anti-cancer evaluation of carboxamides of furano-sesquiterpene carboxylic acids from the soft coral Sinularia kavarattiensis. Bioorg Med Chem Lett 2013; 23:6234-8. [PMID: 24144848 DOI: 10.1016/j.bmcl.2013.09.093] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2013] [Revised: 09/25/2013] [Accepted: 09/30/2013] [Indexed: 12/01/2022]
Abstract
The chemical investigation of soft coral Sinularia kavarattiensis is described. It yielded furano-sesquiterpene carboxylic acids 1 and 2 and their methyl esters 3 and 4. Semi-synthesis of furano-sesquiterpene carboxylic acid 1 gave amide derivatives 5-12. Structures of all the compounds were established by IR, NMR and mass spectral analysis. Interestingly all compounds are selectively potent on leukemia cell line. All these compounds were screened for cytotoxic activity against five human cancer cell lines (leukemia, prostate, lung, breast and cervix). Among these compounds 9 and 10 showed promising activity against leukemia and prostate cancer cell lines.
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Affiliation(s)
- Singanaboina Rajaram
- Division of Natural Products Chemistry, Toxicology Laboratory, CSIR-IICT, Hyderabad 500 007, India
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Sukkharak P, Asakawa Y. Chemosystematics of the Thai Liverwort Cheilolejeunea (Marchantiophyta, Lejeuneaceae). Nat Prod Commun 2013. [DOI: 10.1177/1934578x1300800502] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Members of the liverwort genus Cheilolejeunea, on the basis of chemical data, have been divided into striatane- (I), trifarane- (II) and δ-lactone- (III) chemotypes. In this paper the sesquiterpenoids occurring in C. ceylanica from Thailand are described and the chemosystematics of Cheilolejeunea species are explored. Species belonging to type I produce striatane-type sesquiterpenoids, which have been found in many species of Lejeuneaceae and thus are considered to be one of the significant chemical markers of this family. However, to the best of our knowledge, the trifarane-type is not detected in any other liverworts. The lactone-type species produce chiroptical δ-lactones, with a milky odor.
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Affiliation(s)
- Phiangphak Sukkharak
- Department of Biology, Faculty of Science, Burapha University, Chonburi 20131, Thailand
| | - Yoshinori Asakawa
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima, 770-8514, Japan
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Zhao ZB, Sun JZ, Mao SC, Guo YW. Fasciospyrinadine, a novel sesquiterpene pyridine alkaloid from a Guangxi sponge Fasciospongia sp. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2013; 15:198-202. [PMID: 23323890 DOI: 10.1080/10286020.2012.751098] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Fasciospyrinadine (1), a novel sesquiterpene pyridine alkaloid with a previously unreported skeleton featuring a monocyclicfarnesane moiety attached to a 3-methylenepyridine residue, was isolated from the sponge Fasciospongia sp. from Weizhou Island, Guangxi Autonomous Region. The structure and the relative stereochemistry of 1 were elucidated on the basis of extensive analysis of its 1D and 2D NMR spectroscopic techniques.
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Affiliation(s)
- Zheng-Bao Zhao
- School of Pharmaceutical Science, Shanxi Medical University, Taiyuan 030001, China
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Vlad PF, Ciocarlan A, Edu C, Aricu A, Biriiac A, Coltsa M, D'Ambrosio M, Deleanu C, Nicolescu A, Shova S, Vornicu N, de Groot A. Regio- and stereoselective synthesis of (+)-6-ketoeuryfuran, (+)-6-ketowinterin, and (−)-7-ketoeuryfuran from accessible labdane diterpenoids (+)-larixol and (−)-sclareol. Tetrahedron 2013. [DOI: 10.1016/j.tet.2012.10.096] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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21
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Yu ZG, Li J, Li ZY, Guo YW. Two New Unprecedented Acetonyl-Bearing Sesquiterpenes from the Hainan SpongeDysidea fragilis. Chem Biodivers 2009; 6:858-63. [DOI: 10.1002/cbdv.200800108] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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22
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Gaspar H, Santos S, Carbone M, Rodrigues AI, Uriz MJ, Savluchinske Feio SM, Melck D, Humanes M, Gavagnin M. Isomeric furanosesquiterpenes from the Portuguese marine sponge Fasciospongia sp. JOURNAL OF NATURAL PRODUCTS 2008; 71:2049-2052. [PMID: 19012435 DOI: 10.1021/np800346c] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
This paper reports the chemical study of a sample of Fasciospongia sp. collected along the Atlantic Portuguese coast. Three new isomeric furanosesquiterpenes, isomicrocionin-3 ( 1), (-)-microcionin-1 ( 2), and (-)-isomicrocionin-1 ( 3), were isolated along with the known (-)- ent-pallescensin A ( 4) and (-)-pallescensin-1 ( 5) from the ethyl acetate-soluble portion of the methanolic extract. The structures of the new compounds were elucidated by extensive spectroscopic studies. (-)-Microcionin-1 ( 2) tested positive against several Gram-negative bacteria.
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Gaspar H, Cutignano A, Ferreira T, Calado G, Cimino G, Fontana A. Biosynthetic evidence supporting the generation of terpene chemodiversity in marine mollusks of the genus Doriopsilla. JOURNAL OF NATURAL PRODUCTS 2008; 71:2053-2056. [PMID: 19053515 DOI: 10.1021/np8004387] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
This paper reports the study of terpene biosynthesis in the marine nudibranch Doriopsilla pelseneeri. In vivo feeding experiments with 13C-glucose proved the de novo origin of the terpene metabolites via a mevalonate pathway. Characterization of the stereochemical relationship of the new acetyl pelseneeriols (7 and 8) suggests a two-step mechanism for the sesquiterpene cyclization, leading to a slight refinement of terpene tailoring in this family of marine invertebrates.
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Affiliation(s)
- Helena Gaspar
- Instituto Nacional de Engenharia, Tecnologia e Inovacao (INETI), Estrada do Paco do Lumiar, Edificio F, 1649-038 Lisboa, Portugal
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Huang XC, Li J, Li ZY, Shi L, Guo YW. Sesquiterpenes from the Hainan Sponge Dysidea septosa. JOURNAL OF NATURAL PRODUCTS 2008; 71:1399-1403. [PMID: 18627201 DOI: 10.1021/np8002035] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Five new sesquiterpenes, named lingshuiolides A (1) and B (2), lingshuiperoxide (6), isodysetherin (10), and spirolingshuiolide (12), along with several known related analogues (7- 9, 11, and 13- 15), were isolated from the Hainan marine sponge Dysidea septosa. The structures of new compounds 1, 2, 6, 10, and 12 were determined by detailed analysis of 1D and 2D NMR spectra and by comparison with related model compounds. The absolute configuration of lingshuiolide B (2) was established by using the modified Mosher's method. Spirolingshuiolide (12) represents the first example of a sesquiterpene with a rearranged drimane skeleton. Compounds 7- 9 and 15 exhibited significant inhibitory activity against human protein tyrosine phosphatase 1B (hPTP1B), an enzyme involved in the regulation of insulin signaling. In particular, 15 showed the most potent effect, with an IC 50 value of 1.9 microg/mL.
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Affiliation(s)
- Xiao-Chun Huang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, People's Republic of China
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Carbone M, Gavagnin M, Mollo E, Bidello M, Roussis V, Cimino G. Further syphonosides from the sea hare Syphonota geographica and the sea-grass Halophila stipulacea. Tetrahedron 2008. [DOI: 10.1016/j.tet.2007.10.071] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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26
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Yao G, Chang LC. Novel Sulfated Sesterterpene Alkaloids from the Marine Sponge Fasciospongia sp. Org Lett 2007; 9:3037-40. [PMID: 17602640 DOI: 10.1021/ol0710010] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Fasciospongines A (1) and B (2), two unusual sulfated sesterterpene alkaloids of an unprecedented structural class, have been isolated from the marine sponge Fasciospongia sp. The structures were elucidated on the basis of spectroscopic analysis. Compounds 1 and 2 displayed potent inhibitory activity to Streptomyces 85E in the hypha formation inhibition (HFI) bioassay.
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Affiliation(s)
- Guangmin Yao
- Department of Chemistry and Biochemistry, College of Science and Engineering, University of Minnesota Duluth, 1039 University Drive, Duluth, Minnesota 55812, USA
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Johann S, Smânia A, Pizzolatti MG, Schripsema J, Braz-Filho R, Branco A. Complete ¹H and 13C NMR assignments and anti fungal activity of two 8-hydroxy flavonoids in mixture. AN ACAD BRAS CIENC 2007; 79:215-22. [PMID: 17625676 DOI: 10.1590/s0001-37652007000200004] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2003] [Accepted: 12/28/2006] [Indexed: 11/22/2022] Open
Abstract
A mixture of the two new flavonols 8-hydroxy-3, 4', 5, 6, 7-pentamethoxyflavone (1) and 8-hydroxy-3, 3', 4', 5, 6, 7-hexamethoxyflavone (2) was isolated from a commercial sample of Citrus aurantifolia. An array of one- (¹HNMR, {¹H}-13C NMR, and APT-13C NMR) and two-dimensional NMR techniques (COSY, NOESY, HMQC and HMBC) was used to achieve the structural elucidation and the complete ¹H and 13C chemical shift assignments of these natural compounds. In addition, the antifungal activity of these compounds against phytopathogenic and human pathogenic fungi was investigated.
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Affiliation(s)
- Susana Johann
- Laboratório de Antibióticos, Departamento de Microbiologia e Parasitologia, Universidade Federal de Santa Catarina, Florianópolis, SC, 88040-970, Brazil
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Abstract
This review covers the literature published in 2005 for marine natural products, with 704 citations (493 for the period January to December 2005) referring to compounds isolated from marine microorganisms and phytoplankton, green algae, brown algae, red algae, sponges, coelenterates, bryozoans, molluscs, tunicates and echinoderms. The emphasis is on new compounds (812 for 2005), together with their relevant biological activities, source organisms and country of origin. Biosynthetic studies, first syntheses, and syntheses that lead to the revision of structures or stereochemistries, have been included.
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Affiliation(s)
- John W Blunt
- Department of Chemistry, University of Canterbury, Christchurch, New Zealand.
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29
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Hou XL, Yang Z, Yeung KS, Wong HN. Five–membered ring systems: furans and benzofurans. ACTA ACUST UNITED AC 2007. [DOI: 10.1016/s0959-6380(07)80011-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2023]
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30
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Dichlorocarbene adducts of alkyl enol ethers as precursors to furans: application to a total synthesis of the furanosesquiterpene (±)-pallescensin A. Tetrahedron Lett 2006. [DOI: 10.1016/j.tetlet.2006.07.068] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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31
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Abstract
This review covers the isolation, structural determination, synthesis and chemical and microbiological transformations of natural sesquiterpenoids. The literature from January to December 2005 is reviewed,and 386 references are cited.
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Affiliation(s)
- Braulio M Fraga
- Instituto de Productos Naturales y Agrobiología, CSIC, 38206, La Laguna, Tenerife, Canary Islands, Spain.
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32
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Liu Y, Zhang S, Abreu PJM. Heterocyclic terpenes: linear furano- and pyrroloterpenoids. Nat Prod Rep 2006; 23:630-51. [PMID: 16874393 DOI: 10.1039/b604586c] [Citation(s) in RCA: 69] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Yonghong Liu
- Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510-301, China.
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