1
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Wei QY, Zhou Z, Yao ML, Liu JK, Wu B, Yang JM. Rhodium(III)-catalyzed intermolecular [3+3] annulation of benzoxazines with quinone compounds: access to spiro-heterocyclic scaffolds. Chem Commun (Camb) 2023; 59:11520-11523. [PMID: 37671924 DOI: 10.1039/d3cc03609j] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/07/2023]
Abstract
A rhodium(III)-catalyzed redox-neutral spiroannulation approach to access the spiro[benzo[b][1,4]oxazine-benzo[c]chromene skeleton is described in this contribution. A variety of spiro[5.5]-heterocyclic scaffolds were obtained in moderate to excellent yields under mild conditions. Key features of this protocol are good substrate scope, silver-free conditions, low catalyst loadings, easy handling under air and 100% atom economy. Furthermore, scale-up reactions and late-stage derivatizations highlight the potential synthetic utility of this methodology.
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Affiliation(s)
- Qing-Yi Wei
- School of Pharmaceutical Sciences, South-Central Minzu University, Wuhan 430074, People's Republic of China.
| | - Ze Zhou
- School of Pharmaceutical Sciences, South-Central Minzu University, Wuhan 430074, People's Republic of China.
| | - Meng-Lian Yao
- School of Pharmaceutical Sciences, South-Central Minzu University, Wuhan 430074, People's Republic of China.
| | - Ji-Kai Liu
- School of Pharmaceutical Sciences, South-Central Minzu University, Wuhan 430074, People's Republic of China.
| | - Bin Wu
- School of Pharmaceutical Sciences, South-Central Minzu University, Wuhan 430074, People's Republic of China.
| | - Jin-Ming Yang
- School of Pharmaceutical Sciences, South-Central Minzu University, Wuhan 430074, People's Republic of China.
- College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, Yichang 443002, People's Republic of China
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2
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Shekhar C, Satyanarayana G. Pd‐Catalyzed Suzuki Coupling & NIS‐Mediated Dehydrogenative Cylco‐etherification: A Concise Approach to 6,6‐Disubstituted 6H‐benzo[c]chromenes & Total Synthesis of Didehydroconicol. European J Org Chem 2022. [DOI: 10.1002/ejoc.202101444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Chander Shekhar
- Indian Institute of Technology Hyderabad Chemistry kandi 502285 sangareddy INDIA
| | - Gedu Satyanarayana
- Indian Institute of Technology Hyderabad Chemistry KandiSangareddy District 502 285 Hyderabad INDIA
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3
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Zimnitskiy NS, Barkov A, Kochnev IA, Kutyashev I, Korotaev VY, Sosnovskikh V. Highly diastereoselective annulation of 2-substituted 3-nitro-2H-chromenes with hemicurcuminoids and curcuminoids via a double and triple Michael reaction cascade. NEW J CHEM 2022. [DOI: 10.1039/d2nj02019j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The K2CO3-catalysed double Michael addition of (E)-1,5-diaryl- and 1-alkyl-5-arylpent-4-ene-1,3-diones to 2-trifluoromethyl- and 2-phenyl-substituted 3-nitro-2H-chromenes in dichloromethane at room temperature for 48 h results in 10-aroyl(acyl)-7-aryl-6a-nitro-6,6a,7,8,10,10a-hexahydro-9H-benzo[c]chromen-9-ones in 75-98% yields as individual...
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4
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Ballarotto M, Solinas M, Temperini A. A straightforward synthesis of functionalized 6 H-benzo[ c]chromenes from 3-alkenyl chromenes by intermolecular Diels-Alder/aromatization sequence. Org Biomol Chem 2021; 19:10359-10375. [PMID: 34812469 DOI: 10.1039/d1ob01967h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new and metal-free approach to the synthesis of substituted 6H-benzo[c]chromenes has been developed. This three-step synthetic sequence starts from variously substituted salicylaldehydes and α,β-unsaturated carbonyl compounds to form the chromene core. The de novo ring-forming key step is based on a highly regioselective intermolecular Diels-Alder cycloaddition between 3-vinyl-2H-chromenes and methyl propiolate, followed by oxidative aromatization of the cyclohexadiene cycloadduct intermediate to obtain the final products in good yields (up to 94% over two steps). A modular and divergent design was followed, including a multicomponent reaction, to maximize the scaffold diversity obtained from our approach. The mechanism, investigated by DFT calculations, was confirmed to be concerted through a slightly asynchronous transition state. Energetic analysis of the transition states which have been found confirmed the experimental results in terms of regioselectivity and reactivity tendencies.
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Affiliation(s)
- Marco Ballarotto
- Dipartimento di Scienze Farmaceutiche, Università di Perugia, Via del Liceo 1, 06123 Perugia, Italy.
| | - Mario Solinas
- Dipartimento di Scienze Farmaceutiche, Università di Perugia, Via del Liceo 1, 06123 Perugia, Italy.
| | - Andrea Temperini
- Dipartimento di Scienze Farmaceutiche, Università di Perugia, Via del Liceo 1, 06123 Perugia, Italy.
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5
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Levert A, Foulon V, Fauchon M, Tapissier-Bontemps N, Banaigs B, Hellio C. Antifouling Activity of Meroterpenes Isolated from the Ascidian Aplidium aff. densum. MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2021; 23:51-61. [PMID: 33094389 DOI: 10.1007/s10126-020-10000-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 09/25/2020] [Indexed: 06/11/2023]
Abstract
The settlement and growth of fouling organisms on man-made surfaces can be prevented by the application of antifouling paints containing active compounds (biocides, heavy metals), most of which are toxic to non-target organisms. As part of our research program in chemical ecology and blue biotechnology, we are conducting studies to investigate the natural defence mechanisms of marine organisms that are free from epibionts, with the aim of isolating molecules involved in surface defence that could be good candidates as antifouling agents. Ascidians were selected for our investigation because previous studies have shown that they contain abundant and diverse secondary metabolites, which play a defensive role and have been applied to drug discovery. It is therefore relevant to study the role of such secondary metabolites in surface protection. In this study, 5 meroterpenoids (cordiachromene A, didehydroconicol, epiconicol, methoxyconidiol, conidione) from Aplidium aff. densum (ascidian) were investigated as potential antifoulants towards the inhibition of bacterial growth and settlement inhibition of barnacles. Cardiochromene A (IC50 barnacle settlement = 6.04 μg/mL; MIC Gram positive = 125 μg/mL; MIC Gram negative = 32 μg/mL) and epiconicol (IC50 barnacle settlement = 8.05 μg/mL; MIC Bacillus = 63 μg/mL; MIC other strains = 32 μg/mL) were the most promising compounds among those tested in this study.
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Affiliation(s)
- Annabel Levert
- Université de Perpignan, USR CNRS-EPHE-UPVD 3278, CRIOBE, 66860, Perpignan Cedex, France
- AkiNaO SAS, 58 avenue Paul Alduy, 66000, Perpignan, France
| | - Valentin Foulon
- Laboratoire des Sciences de l'Environnement Marin (LEMAR) CNRS, IRD, Ifremer, Univ Brest, Plouzané, F-29280, France
| | - Marilyne Fauchon
- Laboratoire des Sciences de l'Environnement Marin (LEMAR) CNRS, IRD, Ifremer, Univ Brest, Plouzané, F-29280, France
| | - Nathalie Tapissier-Bontemps
- Université de Perpignan, USR CNRS-EPHE-UPVD 3278, CRIOBE, 66860, Perpignan Cedex, France
- Laboratoire d'Excellence "CORAIL", Perpignan, France
| | - Bernard Banaigs
- Université de Perpignan, USR CNRS-EPHE-UPVD 3278, CRIOBE, 66860, Perpignan Cedex, France
- Laboratoire d'Excellence "CORAIL", Perpignan, France
| | - Claire Hellio
- Laboratoire des Sciences de l'Environnement Marin (LEMAR) CNRS, IRD, Ifremer, Univ Brest, Plouzané, F-29280, France.
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6
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The Ascidian-Derived Metabolites with Antimicrobial Properties. Antibiotics (Basel) 2020; 9:antibiotics9080510. [PMID: 32823633 PMCID: PMC7460354 DOI: 10.3390/antibiotics9080510] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 08/07/2020] [Accepted: 08/11/2020] [Indexed: 12/21/2022] Open
Abstract
Among the sub-phylum of Tunicate, ascidians represent the most abundant class of marine invertebrates, with 3000 species by heterogeneous habitat, that is, from shallow water to deep sea, already reported. The chemistry of these sessile filter-feeding organisms is an attractive reservoir of varied and peculiar bioactive compounds. Most secondary metabolites isolated from ascidians stand out for their potential as putative therapeutic agents in the treatment of several illnesses like microbial infections. In this review, we present and discuss the antibacterial activity shown by the main groups of ascidian-derived products, such as sulfur-containing compounds, meroterpenes, alkaloids, peptides, furanones, and their derivatives. Moreover, the direct evidence of a symbiotic association between marine ascidians and microorganisms shed light on the real producers of many extremely potent marine natural compounds. Hence, we also report the antibacterial potential, joined to antifungal and antiviral activity, of metabolites isolated from ascidian-associate microorganisms by culture-dependent methods.
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7
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Terrazas P, Salamanca E, Dávila M, Manner S, Giménez A, Sterner O. SAR:s for the Antiparasitic Plant Metabolite Pulchrol. 1. The Benzyl Alcohol Functionality. Molecules 2020; 25:molecules25133058. [PMID: 32635469 PMCID: PMC7412453 DOI: 10.3390/molecules25133058] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 06/30/2020] [Accepted: 07/01/2020] [Indexed: 11/22/2022] Open
Abstract
Pulchrol (1) is a natural benzochromene isolated from the roots of Bourreria pulchra, shown to possess potent antiparasitic activity towards both Leishmania and Trypanozoma species. As it is not understood which molecular features of 1 are important for the antiparasitic activity, several analogues were synthesized and assayed. The ultimate goal is to understand the structure–activity relationships (SAR:s) and create a QSAR model that can be used for the development of clinically useful antiparasitic agents. In this study, we have synthesized 25 2-methoxy-6,6-dimethyl-6H-benzo[c]chromen analogues of 1 and its co-metabolite pulchral (5a), by semi-synthetic procedures starting from the natural product pulchrol (1) itself. All 27 compounds, including the two natural products 1 and 5a, were subsequently assayed in vitro for antiparasitic activity against Trypanozoma cruzi, Leishmania brasiliensis and Leishmania amazoniensis. In addition, the cytotoxicity in RAW cells was assayed, and a selectivity index (SI) for each compound and each parasite was calculated. Several compounds are more potent or equi-potent compared with the positive controls Benznidazole (Trypanozoma) and Miltefosine (Leishmania). The compounds with the highest potencies as well as SI-values are esters of 1 with various carboxylic acids.
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Affiliation(s)
- Paola Terrazas
- Department of Chemistry, Centre for Analysis and Synthesis, Lund University, 22100 Lund, Sweden; (P.T.); (S.M.)
- Centre of Agroindustrial Technology, San Simón University, 3299 Cochabamba, Bolivia;
| | - Efrain Salamanca
- Institute for Pharmacological and Biochemical Sciences, San Andrés University, 3299 La Paz, Bolivia; (E.S.); (A.G.)
| | - Marcelo Dávila
- Centre of Agroindustrial Technology, San Simón University, 3299 Cochabamba, Bolivia;
| | - Sophie Manner
- Department of Chemistry, Centre for Analysis and Synthesis, Lund University, 22100 Lund, Sweden; (P.T.); (S.M.)
| | - Alberto Giménez
- Institute for Pharmacological and Biochemical Sciences, San Andrés University, 3299 La Paz, Bolivia; (E.S.); (A.G.)
| | - Olov Sterner
- Department of Chemistry, Centre for Analysis and Synthesis, Lund University, 22100 Lund, Sweden; (P.T.); (S.M.)
- Correspondence: ; Tel.: +46-70-5306649
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8
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Mauro M, Lazzara V, Punginelli D, Arizza V, Vazzana M. Antitumoral compounds from vertebrate sister group: A review of Mediterranean ascidians. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2020; 108:103669. [PMID: 32192994 DOI: 10.1016/j.dci.2020.103669] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Revised: 03/02/2020] [Accepted: 03/02/2020] [Indexed: 06/10/2023]
Abstract
Among the diseases that afflict the human population, cancer is one for which many drug treatments are not yet known or effective. Moreover, the pharmacological treatments used often create serious side effects in sick patients and for this reason, it is essential to find effective and less harmful treatments. To date, marine biodiversity is a real source of metabolites with antitumoral activity and among invertebrates' ascidians have been the main source to obtain them. Mediterranean area is the richest in biodiversity and contains several ascidian species used in drugs development during the years. However, many more Mediterranean ascidian species have not been studied and could be a source of useful bioactive compounds. This review aims to summarize the scientific studies that analyzed the antitumor compounds obtained from different Mediterranean ascidians species, encouraging them to search further compounds in other new species to improve pharmacological treatments and human population life.
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Affiliation(s)
- Manuela Mauro
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Via Archirafi, 18-90123 Palermo, Italy.
| | - Valentina Lazzara
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Via Archirafi, 18-90123 Palermo, Italy
| | - Diletta Punginelli
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Via Archirafi, 18-90123 Palermo, Italy
| | - Vincenzo Arizza
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Via Archirafi, 18-90123 Palermo, Italy
| | - Mirella Vazzana
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Via Archirafi, 18-90123 Palermo, Italy
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9
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Jiang W, Sun J, Yan CG. Selective construction of functionalized chromeno[3,4- b]pyrroles and benzo[ c]chromenes viaa K 3PO 4promoted three-component reaction. NEW J CHEM 2020. [DOI: 10.1039/c9nj05693a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
A K3PO4promoted three-component reaction of pivaloylacetonitrile (benzoylacetonitrile), dialkyl but-2-ynedioates and 2-aryl-3-nitrochromenes afforded functionalized chromeno[3,4-b]pyrroles.
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Affiliation(s)
- Wang Jiang
- College of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou
- China
| | - Jing Sun
- College of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou
- China
| | - Chao-Guo Yan
- College of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou
- China
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10
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Guo, D, Zhang, W, Gao, W, Guo, X, Wang, Y. Total Synthesis of Pulchrol and Pulchral. CHINESE J ORG CHEM 2019. [DOI: 10.6023/cjoc201907024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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11
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Yang W, Wang J, Wang H, Li L, Guan Y, Xu X, Yu D. Rhodium(iii)-catalyzed three-component cascade synthesis of 6H-benzo[c]chromenes through C-H activation. Org Biomol Chem 2018; 16:6865-6869. [PMID: 30229801 DOI: 10.1039/c8ob01938j] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A three-component cascade reaction is described that provides concise access to 6H-benzo[c]chromenes via Rh(iii)-catalyzed annulation of aryl ketone O-acyloximes, quinones and acetone. Acetone acts as a co-solvent and as a reactant. This reaction shows high efficiency, atom- and step-economy, good substrate scope, excellent functional group compatibility and gives the products in good yields.
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Affiliation(s)
- Wei Yang
- College of Chemistry Engineering, Northeast Electric Power University, Jilin 132012, China.
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12
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Said B, Montenegro I, Valenzuela M, Olguín Y, Caro N, Werner E, Godoy P, Villena J, Madrid A. Synthesis and Antiproliferative Activity of New Cyclodiprenyl Phenols against Select Cancer Cell Lines. Molecules 2018; 23:molecules23092323. [PMID: 30213053 PMCID: PMC6225466 DOI: 10.3390/molecules23092323] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Revised: 08/31/2018] [Accepted: 09/11/2018] [Indexed: 02/06/2023] Open
Abstract
Six new cyclodiprenyl phenols were synthesized by direct coupling of perillyl alcohol and the appropriate phenol. Their structures were established by IR, HRMS and mainly NMR. Three human cancer cell lines-breast (MCF-7), prostate (PC-3) and colon (HT-29)-were used in antiproliferative assays, with daunorubicin and dunnione as positive controls. Results described in the article suggest that dihydroxylated compounds 2⁻4 and monohydroxylated compound 5 display selectivity against cancer cell lines, cytotoxicity, apoptosis induction, and mitochondrial membrane impairment capacity. Compound 2 was identified as the most effective of the series by displaying against all cancer cell lines a cytotoxicity close to dunnione antineoplastic agent, suggesting that the cyclodiprenyl phenols from perillyl alcohol deserve more extensive investigation of their potential medicinal applications.
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Affiliation(s)
- Bastián Said
- Departamento de Química, Universidad Técnica Federico Santa María, Av. Santa María 6400, Vitacura 7630000, Santiago, Chile.
| | - Iván Montenegro
- Escuela de Obstetricia y Puericultura, Facultad de medicina, Campus de la Salud, Universidad de Valparaíso, Angamos 655, Reñaca, Viña del Mar 2520000, Chile.
| | - Manuel Valenzuela
- Laboratorio de Microbiología Celular, Instituto de Investigación e Innovación en Salud, Facultad de Ciencias de la Salud, Universidad Central de Chile, Santiago 8320000, Chile.
| | - Yusser Olguín
- Center for Integrative Medicine and Innovative Science (CIMIS), Facultad de Medicina, Universidad Andrés Bello, Santiago 8320000, Chile.
| | - Nelson Caro
- Centro de Investigación Australbiotech, Universidad Santo Tomás, Avda. Ejército 146, Santiago 8320000, Chile.
| | - Enrique Werner
- Departamento De Ciencias Básicas, Campus Fernando May Universidad del Biobío, Avda. Andrés Bello s/n casilla 447, Chillán 3780000, Chile.
| | - Patricio Godoy
- Instituto de Microbiología Clínica, Facultad de Medicina, Universidad Austral de Chile, Los Laureles s/n, Isla Teja, Valdivia 5090000, Chile.
| | - Joan Villena
- Centro de Investigaciones Biomedicas (CIB), Facultad de Medicina, Campus de la Salud, Universidad de Valparaíso, Angamos 655, Reñaca, Viña del Mar 2520000, Chile.
| | - Alejandro Madrid
- Laboratorio de Productos Naturales y Síntesis Orgánica, Departamento de Química, Facultad de Ciencias Naturales y Exactas, Universidad de Playa Ancha, Avda. Leopoldo Carvallo 270, Playa Ancha, Valparaíso 2340000, Chile.
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13
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García PA, Hernández ÁP, San Feliciano A, Castro MÁ. Bioactive Prenyl- and Terpenyl-Quinones/Hydroquinones of Marine Origin †. Mar Drugs 2018; 16:E292. [PMID: 30134616 PMCID: PMC6165040 DOI: 10.3390/md16090292] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2018] [Revised: 08/15/2018] [Accepted: 08/17/2018] [Indexed: 01/05/2023] Open
Abstract
The sea is a rich source of biological active compounds, among which terpenyl-quinones/hydroquinones constitute a family of secondary metabolites with diverse pharmacological properties. The chemical diversity and bioactivity of those isolated from marine organisms in the last 10 years are summarized in this review. Aspects related to synthetic approaches towards the preparation of improved bioactive analogues from inactive terpenoids are also outlined.
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Affiliation(s)
- Pablo A García
- Department of Pharmaceutical Sciences, Pharmaceutical Chemistry Section, CIETUS/IBSAL, Faculty of Pharmacy, University of Salamanca, E-37007 Salamanca, Spain.
| | - Ángela P Hernández
- Department of Pharmaceutical Sciences, Pharmaceutical Chemistry Section, CIETUS/IBSAL, Faculty of Pharmacy, University of Salamanca, E-37007 Salamanca, Spain.
| | - Arturo San Feliciano
- Department of Pharmaceutical Sciences, Pharmaceutical Chemistry Section, CIETUS/IBSAL, Faculty of Pharmacy, University of Salamanca, E-37007 Salamanca, Spain.
| | - Mª Ángeles Castro
- Department of Pharmaceutical Sciences, Pharmaceutical Chemistry Section, CIETUS/IBSAL, Faculty of Pharmacy, University of Salamanca, E-37007 Salamanca, Spain.
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14
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Birringer M, Siems K, Maxones A, Frank J, Lorkowski S. Natural 6-hydroxy-chromanols and -chromenols: structural diversity, biosynthetic pathways and health implications. RSC Adv 2018; 8:4803-4841. [PMID: 35539527 PMCID: PMC9078042 DOI: 10.1039/c7ra11819h] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Accepted: 01/18/2018] [Indexed: 01/26/2023] Open
Abstract
We present the first comprehensive and systematic review on the structurally diverse toco-chromanols and -chromenols found in photosynthetic organisms, including marine organisms, and as metabolic intermediates in animals. The focus of this work is on the structural diversity of chromanols and chromenols that result from various side chain modifications. We describe more than 230 structures that derive from a 6-hydroxy-chromanol- and 6-hydroxy-chromenol core, respectively, and comprise di-, sesqui-, mono- and hemiterpenes. We assort the compounds into a structure-activity relationship with special emphasis on anti-inflammatory and anti-carcinogenic activities of the congeners. This review covers the literature published from 1970 to 2017.
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Affiliation(s)
- Marc Birringer
- Department of Nutritional, Food and Consumer Sciences, Fulda University of Applied Sciences Leipziger Straße 123 36037 Fulda Germany
| | - Karsten Siems
- AnalytiCon Discovery GmbH Hermannswerder Haus 17 14473 Potsdam Germany
| | - Alexander Maxones
- Department of Nutritional, Food and Consumer Sciences, Fulda University of Applied Sciences Leipziger Straße 123 36037 Fulda Germany
| | - Jan Frank
- Institute of Biological Chemistry and Nutrition, University of Hohenheim Garbenstr. 28 70599 Stuttgart Germany
| | - Stefan Lorkowski
- Institute of Nutrition, Friedrich Schiller University Jena Dornburger Str. 25 07743 Jena Germany
- Competence Cluster for Nutrition and Cardiovascular Health (nutriCARD), Halle-Jena-Leipzig Germany
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15
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Wu G, Li L, Chen B, Chen C, Luo D, He B. Natural meroterpenoids isolated from the plant pathogenic fungus Verticillium albo-atrum with noteworthy modification action against voltage-gated sodium channels of central neurons of Helicoverpa armigera. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2018; 144:91-99. [PMID: 29463414 DOI: 10.1016/j.pestbp.2017.12.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Revised: 12/08/2017] [Accepted: 12/16/2017] [Indexed: 06/08/2023]
Abstract
A new meroterpenoid, named acetoxydehydroaustin A (1) and the known meroterpenoid austin (2) were isolated from the plant pathogenic fungus Verticillium albo-atrum. Their structures were established based on general spectroscopic techniques and the relative configuration of compound 1 was determined by single-crystal X-ray diffraction analysis. We first investigated and identified their significant electrophysiological effects on the gating kinetics of voltage-gated sodium channels in central neurons acutely dissociated from Helicoverpa armigera using whole-cell patch clamp technique. Similar to the effects of pyrethroids on sodium late currents, both compounds produced concentration-dependent modification of sodium channels, prolonging the kinetics of channel inactivation to generate large persistent late currents during depolarization. However, different from the effects of tefluthrin and deltamethrin on sodium channels, two meroterpenoids did not induce tail currents during deactivation. Compounds 1 and 2 also caused depolarizing shifts in the voltage dependence of channel activation. The V0.5 shifted about 5.02mV and 6.32mV in the depolarizing direction by 50μM 1 and 50μM 2. The V0.5 of voltage-dependent inactivation shifted about 11.42mV and 11.62mV respectively in the hyperpolarizing direction by 50μM 1 and 100μM 2. In addition, they prolonged the time course of recovery from fast-inactivation for sodium channels. The effects of two compounds on the voltage-dependent gating substantially increased the size of sodium window currents. The overlapped area of window currents increased about 89.69% and 44.51% respectively by 10μM compound 1 and 10μM compound 2. These findings show that both compounds have effects on sodium channel activation, inactivation and window currents. The voltage-gated sodium channels in central neurons of H. armigera are the target sites of two meroterpenoid natural products.
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Affiliation(s)
- Guangyan Wu
- College of Life Sciences, State Key Laboratory of Medicinal Chemical Biology, Nankai University, 94 Weijin Road, Tianjin 300071, China
| | - Lin Li
- College of Life Sciences, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis, Ministry of Education, Hebei University, Baoding 071002, China
| | - Bo Chen
- College of Life Sciences, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis, Ministry of Education, Hebei University, Baoding 071002, China
| | - Chuan Chen
- College of Life Sciences, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis, Ministry of Education, Hebei University, Baoding 071002, China
| | - Duqiang Luo
- College of Life Sciences, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis, Ministry of Education, Hebei University, Baoding 071002, China.
| | - Bingjun He
- College of Life Sciences, State Key Laboratory of Medicinal Chemical Biology, Nankai University, 94 Weijin Road, Tianjin 300071, China.
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16
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Yaragorla S, Khan T. An unexpected thermal-ring-rearrangement of benzochromenes to inden-3-yl-naphthols with pTsOH. Org Biomol Chem 2018; 16:7920-7925. [DOI: 10.1039/c8ob02264j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Described here is the first report of an unexpected thermal-ring rearrangement (TRR) of benzochromenes to indene derivatives promoted by pTsOH, which proceeds through the protonation of benzochromenes by an acid catalysts followed by ring-opening and ring-closure by an intramolecular Friedel–Crafts cyclization.
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17
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Evans CS, Davis LO. Recent Advances in Organocatalyzed Domino C-C Bond-Forming Reactions. Molecules 2017; 23:E33. [PMID: 29295474 PMCID: PMC5943935 DOI: 10.3390/molecules23010033] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Revised: 12/19/2017] [Accepted: 12/22/2017] [Indexed: 01/16/2023] Open
Abstract
Reactions that form a C-C bond make up a foundational pillar of synthetic organic chemistry. In addition, organocatalysis has emerged as an easy, environmentally-friendly way to promote this type of bond formation. Since around 2000, organocatalysts have been used in a variety of C-C bond-forming reactions including Michael and aldol additions, Mannich-type reactions, and Diels-Alder reactions, to name a few. Many of these methodologies have been refined and further developed to include cascade and domino processes. This review will focus on recent advances in this area with an emphasis on methodologies having applications in the synthesis of biologically-significant compounds.
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Affiliation(s)
- Cleo S Evans
- Department of Chemistry and Biochemistry, Berry College, P.O. Box 495016, Mt. Berry, GA 30149, USA.
| | - Lindsey O Davis
- Department of Chemistry and Biochemistry, Berry College, P.O. Box 495016, Mt. Berry, GA 30149, USA.
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18
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Kumar M, Chauhan P, Valkonen A, Rissanen K, Enders D. Asymmetric Synthesis of Functionalized Tricyclic Chromanes via an Organocatalytic Triple Domino Reaction. Org Lett 2017; 19:3025-3028. [DOI: 10.1021/acs.orglett.7b01322] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mukesh Kumar
- Institute
of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Pankaj Chauhan
- Institute
of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Arto Valkonen
- Department
of Chemistry, Nanoscience Center University of Jyvaskyla, 40014 Jyvaskyla, Finland
| | - Kari Rissanen
- Department
of Chemistry, Nanoscience Center University of Jyvaskyla, 40014 Jyvaskyla, Finland
| | - Dieter Enders
- Institute
of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
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19
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Muralidhar B, Reddy SR. Zn(II) Chloride Promoted Benzannulation Strategy for One‐Pot Regioselective Synthesis of 6 H‐Benzo[ c]chromenes. ChemistrySelect 2017. [DOI: 10.1002/slct.201700311] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Baitinti Muralidhar
- Department of chemistrySchool of Advanced Sciences, VIT University Vellore 632014 India
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20
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Tangdenpaisal K, Chuayboonsong K, Ruchirawat S, Ploypradith P. Divergent Strategy for the Diastereoselective Synthesis of the Tricyclic 6,7-Diaryltetrahydro-6H-benzo[c]chromene Core via Pt(IV)-Catalyzed Cycloaddition of o-Quinone Methides and Olefin Ring-Closing Metathesis. J Org Chem 2017; 82:2672-2688. [PMID: 28186761 DOI: 10.1021/acs.joc.6b03086] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A divergent strategy for the synthesis of the tricyclic 6,7-diaryltetrahydro-6H-benzo[c]chromene core was successfully developed. The 2,3-trans, 2,4-cis trisubstituted chroman moiety was formed via highly efficient and stereoselective Pt(IV)-catalyzed cycloaddition reactions of the corresponding quinone methides with chalcones. Subsequent steps provided the common diene alcohol, which underwent BF3·Et2O-mediated Et3SiH reduction and olefin ring-closing metathesis (RCM) using Ru(II) catalysts. The sequence of the final two steps provided a handle to diversify the stereochemical outcomes at C6 as well as C10a.
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Affiliation(s)
- Kassrin Tangdenpaisal
- Laboratory of Medicinal Chemistry, Chulabhorn Research Institute , 54 Kamphaeng Phet 6 Road, Laksi, Bangkok, Thailand 10210.,Institute of Molecular Biosciences, Mahidol University , Salaya, Nakhon Pathom, Thailand 73170
| | - Kanokpish Chuayboonsong
- Program in Chemical Biology, Chulabhorn Graduate Institute , 54 Kamphaeng Phet 6 Road, Laksi, Bangkok, Thailand 10210
| | - Somsak Ruchirawat
- Laboratory of Medicinal Chemistry, Chulabhorn Research Institute , 54 Kamphaeng Phet 6 Road, Laksi, Bangkok, Thailand 10210.,Institute of Molecular Biosciences, Mahidol University , Salaya, Nakhon Pathom, Thailand 73170.,Program in Chemical Biology, Chulabhorn Graduate Institute , 54 Kamphaeng Phet 6 Road, Laksi, Bangkok, Thailand 10210.,Centre of Excellence on Environmental Health and Toxicology, Commission on Higher Education (CHE), Ministry of Education , Bangkok, Thailand
| | - Poonsakdi Ploypradith
- Laboratory of Medicinal Chemistry, Chulabhorn Research Institute , 54 Kamphaeng Phet 6 Road, Laksi, Bangkok, Thailand 10210.,Institute of Molecular Biosciences, Mahidol University , Salaya, Nakhon Pathom, Thailand 73170.,Program in Chemical Biology, Chulabhorn Graduate Institute , 54 Kamphaeng Phet 6 Road, Laksi, Bangkok, Thailand 10210.,Centre of Excellence on Environmental Health and Toxicology, Commission on Higher Education (CHE), Ministry of Education , Bangkok, Thailand
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21
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Palanisamy SK, Rajendran NM, Marino A. Natural Products Diversity of Marine Ascidians (Tunicates; Ascidiacea) and Successful Drugs in Clinical Development. NATURAL PRODUCTS AND BIOPROSPECTING 2017; 7:1-111. [PMID: 28097641 PMCID: PMC5315671 DOI: 10.1007/s13659-016-0115-5] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2016] [Accepted: 12/14/2016] [Indexed: 06/06/2023]
Abstract
This present study reviewed the chemical diversity of marine ascidians and their pharmacological applications, challenges and recent developments in marine drug discovery reported during 1994-2014, highlighting the structural activity of compounds produced by these specimens. Till date only 5% of living ascidian species were studied from <3000 species, this study represented from family didemnidae (32%), polyclinidae (22%), styelidae and polycitoridae (11-12%) exhibiting the highest number of promising MNPs. Close to 580 compound structures are here discussed in terms of their occurrence, structural type and reported biological activity. Anti-cancer drugs are the main area of interest in the screening of MNPs from ascidians (64%), followed by anti-malarial (6%) and remaining others. FDA approved ascidian compounds mechanism of action along with other compounds status of clinical trials (phase 1 to phase 3) are discussed here in. This review highlights recent developments in the area of natural products chemistry and biotechnological approaches are emphasized.
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Affiliation(s)
- Satheesh Kumar Palanisamy
- Department of Chemical, Biological, Pharmaceutical and Environmental Science, University of Messina, 98166, Messina, Italy.
| | - N M Rajendran
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Angela Marino
- Department of Chemical, Biological, Pharmaceutical and Environmental Science, University of Messina, 98166, Messina, Italy
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22
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Wang S, He J, An Z. Heterogeneous enantioselective synthesis of chromans via the oxa-Michael–Michael cascade reaction synergically catalyzed by grafted chiral bases and inherent hydroxyls on mesoporous silica surface. Chem Commun (Camb) 2017; 53:8882-8885. [DOI: 10.1039/c7cc03556j] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A heterogeneous enantioselective oxa-Michael–Michael reaction for the synthesis of chromans has been developed on bifunctional catalysts, resulting in excellent catalytic performance.
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Affiliation(s)
- Shanshan Wang
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Jing He
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Zhe An
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- China
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23
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Synthesis of Phytocannabinoids. PROGRESS IN THE CHEMISTRY OF ORGANIC NATURAL PRODUCTS 2017; 103:37-59. [DOI: 10.1007/978-3-319-45541-9_2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
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24
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Soto M, Espinoza L, Chávez MI, Díaz K, Olea AF, Taborga L. Synthesis of New Hydrated Geranylphenols and in Vitro Antifungal Activity against Botrytis cinerea. Int J Mol Sci 2016; 17:ijms17060840. [PMID: 27271604 PMCID: PMC4926374 DOI: 10.3390/ijms17060840] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Revised: 05/12/2016] [Accepted: 05/25/2016] [Indexed: 02/07/2023] Open
Abstract
Geranylated hydroquinones and other geranylated compounds isolated from Aplydium species have shown interesting biological activities. This fact has prompted a number of studies where geranylated phenol derivatives have been synthesized in order to assay their bioactivities. In this work, we report the synthesis of a series of new hydrated geranylphenols using two different synthetic approaches and their inhibitory effects on the mycelial growth of Botrytis cinerea. Five new hydrated geranylphenols were obtained by direct coupling reaction between geraniol and phenol in dioxane/water and using BF3·Et2O as the catalyst or by the reaction of a geranylated phenol with BF3·Et2O. Two new geranylated quinones were also obtained. The synthesis and structural elucidation of all new compounds is presented. All hydrated geranylphenols efficiently inhibit the mycelial growth of B. cinerea. Their activity is higher than that observed for non-hydrated compounds. These results indicate that structural modification on the geranyl chain brings about an enhancement of the inhibition effect of geranylated phenol derivatives.
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Affiliation(s)
- Mauricio Soto
- Departamento de Química, Universidad Técnica Federico Santa María, Valparaíso 2340000, Chile.
| | - Luis Espinoza
- Departamento de Química, Universidad Técnica Federico Santa María, Valparaíso 2340000, Chile.
| | - María I Chávez
- Departamento de Química, Universidad Técnica Federico Santa María, Valparaíso 2340000, Chile.
| | - Katy Díaz
- Departamento de Química, Universidad Técnica Federico Santa María, Valparaíso 2340000, Chile.
| | - Andrés F Olea
- Instituto de Ciencias Químicas Aplicadas, Facultad de Ingeniería, Universidad Autónoma de Chile, Santiago 8910339, Chile.
| | - Lautaro Taborga
- Departamento de Química, Universidad Técnica Federico Santa María, Valparaíso 2340000, Chile.
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25
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Minuti L, Ballerini E, Barattucci A, Bonaccorsi PM, Di Gioia ML, Leggio A, Siciliano C, Temperini A. A unified strategy for the synthesis of three conicol marine natural products. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.03.118] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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26
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Pratap R, Ram VJ. Natural and synthetic chromenes, fused chromenes, and versatility of dihydrobenzo[h]chromenes in organic synthesis. Chem Rev 2014; 114:10476-526. [PMID: 25303539 DOI: 10.1021/cr500075s] [Citation(s) in RCA: 373] [Impact Index Per Article: 37.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Ramendra Pratap
- Department of Chemistry, University of Delhi , North Campus, Delhi-110007, India
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27
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Killander D, Sterner O. Reagent-Controlled Cyclization-Deprotection Reaction to Yield either Fluorenes or Benzochromenes. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402722] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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28
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Quinone and hydroquinone metabolites from the ascidians of the genus Aplidium. Mar Drugs 2014; 12:3608-33. [PMID: 24927227 PMCID: PMC4071593 DOI: 10.3390/md12063608] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2014] [Revised: 06/03/2014] [Accepted: 06/04/2014] [Indexed: 11/16/2022] Open
Abstract
Ascidians of the genus Aplidium are recognized as an important source of chemical diversity and bioactive natural products. Among the compounds produced by this genus are non-nitrogenous metabolites, mainly prenylated quinones and hydroquinones. This review discusses the isolation, structural elucidation, and biological activities of quinones, hydroquinones, rossinones, longithorones, longithorols, floresolides, scabellones, conicaquinones, aplidinones, thiaplidiaquinones, and conithiaquinones. A compilation of the 13C-NMR spectral data of these compounds is also presented.
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29
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Killander D, Sterner O. Synthesis of the Bioactive Benzochromenes Pulchrol and Pulchral, Metabolites ofBourreria pulchra. European J Org Chem 2014. [DOI: 10.1002/ejoc.201301792] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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30
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Yin X, Feng T, Li ZH, Dong ZJ, Li Y, Liu JK. Highly oxygenated meroterpenoids from fruiting bodies of the mushroom Tricholoma terreum. JOURNAL OF NATURAL PRODUCTS 2013; 76:1365-1368. [PMID: 23837944 DOI: 10.1021/np400359y] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Four new meroterpenoids, terreumols A-D (1-4), with a rare 10-membered ring system, were isolated from the fruiting bodies of Tricholoma terreum. Their structures with absolute stereochemistry were determined by comprehensive spectroscopic methods, as well as single-crystal X-ray diffractions. Compounds 1, 3, and 4 were evaluated for their cytotoxicities against five human cancer cell lines; all of them exhibited inhibitory effects, with IC50 values comparable to those of cisplatin.
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Affiliation(s)
- Xia Yin
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China
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31
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Meroterpenes from marine invertebrates: structures, occurrence, and ecological implications. Mar Drugs 2013; 11:1602-43. [PMID: 23685889 PMCID: PMC3707164 DOI: 10.3390/md11051602] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2013] [Revised: 04/07/2013] [Accepted: 05/07/2013] [Indexed: 11/29/2022] Open
Abstract
Meroterpenes are widely distributed among marine organisms; they are particularly abundant within brown algae, but other important sources include microorganisms and invertebrates. In the present review the structures and bioactivities of meroterpenes from marine invertebrates, mainly sponges and tunicates, are summarized. More than 300 molecules, often complex and with unique skeletons originating from intra- and inter-molecular cyclizations, and/or rearrangements, are illustrated. The reported syntheses are mentioned. The issue of a potential microbial link to their biosynthesis is also shortly outlined.
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32
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Fridén-Saxin M, Seifert T, Hansen LK, Grøtli M, Erdelyi M, Luthman K. Proline-mediated formation of novel chroman-4-one tetrahydropyrimidines. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.06.077] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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33
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Lopez G, Witczak A, Menniti C, Inguimbert N, Banaigs B. Rapid synthesis of methoxyconidiol and conitriol stereoisomers. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.06.050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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34
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Sunassee SN, Davies-Coleman MT. Cytotoxic and antioxidant marine prenylated quinones and hydroquinones. Nat Prod Rep 2012; 29:513-35. [DOI: 10.1039/c2np00086e] [Citation(s) in RCA: 104] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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35
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Bioactive Marine Prenylated Quinones/Quinols. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/b978-0-444-53836-9.00023-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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36
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Waser M. Combined Iminium-Enamine Catalyzed Approaches. ASYMMETRIC ORGANOCATALYSIS IN NATURAL PRODUCT SYNTHESES 2012:69-75. [DOI: 10.1007/978-3-7091-1163-5_4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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37
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Abstract
Covering: 2010. Previous review: Nat. Prod. Rep., 2011, 28, 196. This review covers the literature published in 2010 for marine natural products, with 895 citations (590 for the period January to December 2010) 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 (1003 for 2010), together with the 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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38
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Impact of marine drugs on cytoskeleton-mediated reproductive events. Mar Drugs 2010; 8:881-915. [PMID: 20479959 PMCID: PMC2866467 DOI: 10.3390/md8040881] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2010] [Revised: 03/02/2010] [Accepted: 03/23/2010] [Indexed: 12/30/2022] Open
Abstract
Marine organisms represent an important source of novel bioactive compounds, often showing unique modes of action. Such drugs may be useful tools to study complex processes such as reproduction; which is characterized by many crucial steps that start at gamete maturation and activation and virtually end at the first developmental stages. During these processes cytoskeletal elements such as microfilaments and microtubules play a key-role. In this review we describe: (i) the involvement of such structures in both cellular and in vitro processes; (ii) the toxins that target the cytoskeletal elements and dynamics; (iii) the main steps of reproduction and the marine drugs that interfere with these cytoskeleton-mediated processes. We show that marine drugs, acting on microfilaments and microtubules, exert a wide range of impacts on reproductive events including sperm maturation and motility, oocyte maturation, fertilization, and early embryo development.
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39
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Marine natural meroterpenes: synthesis and antiproliferative activity. Mar Drugs 2010; 8:347-58. [PMID: 20390109 PMCID: PMC2852842 DOI: 10.3390/md8020347] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2010] [Accepted: 02/20/2010] [Indexed: 11/21/2022] Open
Abstract
Meroterpenes are compounds of mixed biogenesis, isolated from plants, microorganisms and marine invertebrates. We have previously isolated and determined the structure for a series of meroterpenes extracted from the ascidian Aplidium aff. densum. Here, we demonstrate the chemical synthesis of three of them and their derivatives, and evaluate their biological activity on two bacterial strains, on sea urchin eggs, and on cancerous and healthy human cells.
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40
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Hong BC, Kotame P, Tsai CW, Liao JH. Enantioselective Total Synthesis of (+)-Conicol via Cascade Three-Component Organocatalysis. Org Lett 2010; 12:776-9. [DOI: 10.1021/ol902840x] [Citation(s) in RCA: 151] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Bor-Cherng Hong
- Department of Chemistry and Biochemistry, National Chung Cheng University, Chia-Yi, 621, Taiwan, R.O.C
| | - Prakash Kotame
- Department of Chemistry and Biochemistry, National Chung Cheng University, Chia-Yi, 621, Taiwan, R.O.C
| | - Chih-Wei Tsai
- Department of Chemistry and Biochemistry, National Chung Cheng University, Chia-Yi, 621, Taiwan, R.O.C
| | - Ju-Hsiou Liao
- Department of Chemistry and Biochemistry, National Chung Cheng University, Chia-Yi, 621, Taiwan, R.O.C
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41
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Silvestre F, Tosti E. Impact of marine drugs on animal reproductive processes. Mar Drugs 2009; 7:539-64. [PMID: 20098597 PMCID: PMC2810222 DOI: 10.3390/md7040539] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2009] [Revised: 11/03/2009] [Accepted: 11/06/2009] [Indexed: 01/09/2023] Open
Abstract
The discovery and description of bioactive substances from natural sources has been a research topic for the last 50 years. In this respect, marine animals have been used to extract many new compounds exerting different actions. Reproduction is a complex process whose main steps are the production and maturation of gametes, their activation, the fertilisation and the beginning of development. In the literature it has been shown that many substances extracted from marine organisms may have profound influence on the reproductive behaviour, function and reproductive strategies and survival of species. However, despite the central importance of reproduction and thus the maintenance of species, there are still few studies on how reproductive mechanisms are impacted by marine bioactive drugs. At present, studies in either marine and terrestrial animals have been particularly important in identifying what specific fine reproductive mechanisms are affected by marine-derived substances. In this review we describe the main steps of the biology of reproduction and the impact of substances from marine environment and organisms on the reproductive processes.
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Affiliation(s)
| | - Elisabetta Tosti
- Author to whom correspondence should be addressed; E-Mail:
; Tel.: +39 081 5833288; Fax: +39 081 7641355
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42
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Blunt JW, Copp BR, Hu WP, Munro MHG, Northcote PT, Prinsep MR. Marine natural products. Nat Prod Rep 2009; 26:170-244. [PMID: 19177222 DOI: 10.1039/b805113p] [Citation(s) in RCA: 408] [Impact Index Per Article: 27.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
This review covers the literature published in 2007 for marine natural products, with 948 citations(627 for the period January to December 2007) referring to compounds isolated from marine microorganisms and phytoplankton, green algae, brown algae, red algae, sponges, cnidarians,bryozoans, molluscs, tunicates, echinoderms and true mangrove plants. The emphasis is on new compounds (961 for 2007), together with the 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.1 Introduction, 2 Reviews, 3 Marine microorganisms and phytoplankton, 4 Green algae, 5 Brown algae, 6 Red algae, 7 Sponges, 8 Cnidarians, 9 Bryozoans, 10 Molluscs, 11 Tunicates (ascidians),12 Echinoderms, 13 Miscellaneous, 14 Conclusion, 15 References.
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Affiliation(s)
- John W Blunt
- Department of Chemistry, University of Canterbury, Christchurch, New Zealand.
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43
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Muthusamy S, Krishnamurthi J. Multicomponent reactions involving p-benzoquinones, diazo esters, titanium(IV) isopropoxide and alcohol in the presence of rhodium(II) acetate as catalyst. Tetrahedron Lett 2007. [DOI: 10.1016/j.tetlet.2007.07.140] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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44
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Simon-Levert A, Aze A, Bontemps-Subielos N, Banaigs B, Genevière AM. Antimitotic activity of methoxyconidiol, a meroterpene isolated from an ascidian. Chem Biol Interact 2007; 168:106-16. [PMID: 17448456 DOI: 10.1016/j.cbi.2007.03.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2006] [Revised: 02/21/2007] [Accepted: 03/01/2007] [Indexed: 11/26/2022]
Abstract
Methoxyconidiol is a meroterpene previously extracted from the ascidian Aplidium aff. densum [A. Simon-Levert, A. Arrault, N. Bontemps-Subielos, C. Canal, B. Banaigs. Meroterpenes from the ascidian Aplidium aff. densum, J. Nat. Prod. 68 (2005) 1412-1415]. In the present work we investigated its antimitotic effect on eukaryotic cells by using a bioassay based on the sea urchin early embryo. This bioassay has been successfully used to evaluate the efficacy of antiproliferative agents and to rapidly determine the affected cell cycle phase. We demonstrated that methoxyconidiol inhibits the cleavages of sea urchin Sphaerechinus granularis and Paracentrotus lividus fertilized eggs. This meroterpene disrupts M-phase progression and completely blocks cytokinesis without having any effect on DNA replication. The treatment severely disturbs the establishment of a mitotic spindle, most likely by affecting microtubule dynamics. Moreover, while the cell cycle regulatory kinase cyclin B/CDK1 is activated, cyclin B proteolysis is inhibited, impeding the output of M-phase. This characteristic cell cycle arrest induced by methoxyconidiol in sea urchin eggs emphasizes the interest for this drug as a putative antiproliferative agent for tumor cells.
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Affiliation(s)
- Annabel Simon-Levert
- Laboratoire de Chimie des Biomolécules et de l'Environnement, Université de Perpignan, 52 Avenue Paul Alduy, Perpignan Cedex, France
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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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