1
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Isak D, Schwartz LA, Schulthoff S, Pérez-Moreno G, Bosch-Navarrete C, González-Pacanowska D, Fürstner A. Collective and Diverted Total Synthesis of the Strasseriolides: A Family of Macrolides Endowed with Potent Antiplasmodial and Antitrypanosomal Activity. Angew Chem Int Ed Engl 2024; 63:e202408725. [PMID: 38864359 DOI: 10.1002/anie.202408725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2024] [Revised: 06/11/2024] [Accepted: 06/12/2024] [Indexed: 06/13/2024]
Abstract
The strasseriolide macrolides show promising in vitro and in vivo activities against P. falciparum and T. cruzi, the parasites causing malaria and Chagas disease, respectively. However, the as yet poor understanding of structure/activity relationships and the fact that one family member proved systemically toxic for unknown reasons render a more detailed assessment of these potential lead compounds difficult. To help overcome these issues, a collective total synthesis was devised. The key steps consisted of a ring closing alkyne metathesis (RCAM) reaction to forge a common macrocyclic intermediate followed by a hydroxy-directed ruthenium catalyzed trans-hydrostannation of the propargyl alcohol site thus formed. The resulting alkenyltin derivative served as the central node of the synthesis blueprint, which could be elaborated into the natural products themselves as well as into a set of non-natural analogues according to the concept of diverted total synthesis. The recorded biological data confirmed the potency of the compounds and showed the lack of any noticeable cytotoxicity. The "northern" allylic alcohol subunit was recognized as an integral part of the pharmacophore, yet it provides opportunities for chemical modification.
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Affiliation(s)
- Daniel Isak
- Max-Planck-Institut für Kohlenforschung, 45470, Mülheim/Ruhr, Germany
| | - Leyah A Schwartz
- Max-Planck-Institut für Kohlenforschung, 45470, Mülheim/Ruhr, Germany
| | - Saskia Schulthoff
- Max-Planck-Institut für Kohlenforschung, 45470, Mülheim/Ruhr, Germany
| | - Guiomar Pérez-Moreno
- Instituto de Parasitologia y Biomedicina "López-Neyra", Consejo Superior de Investigaciones Científicas, Avenida del Conocimiento 17 18016, Armilla, Granada, Spain
| | - Cristina Bosch-Navarrete
- Instituto de Parasitologia y Biomedicina "López-Neyra", Consejo Superior de Investigaciones Científicas, Avenida del Conocimiento 17 18016, Armilla, Granada, Spain
| | - Dolores González-Pacanowska
- Instituto de Parasitologia y Biomedicina "López-Neyra", Consejo Superior de Investigaciones Científicas, Avenida del Conocimiento 17 18016, Armilla, Granada, Spain
| | - Alois Fürstner
- Max-Planck-Institut für Kohlenforschung, 45470, Mülheim/Ruhr, Germany
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2
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Yetra SR, Schmitt N, Tambar UK. Catalytic photochemical enantioselective α-alkylation with pyridinium salts. Chem Sci 2023; 14:586-592. [PMID: 36741522 PMCID: PMC9847668 DOI: 10.1039/d2sc05654b] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Accepted: 11/28/2022] [Indexed: 12/14/2022] Open
Abstract
We have developed a chiral amine catalyzed enantioselective α-alkylation of aldehydes with amino acid derived pyridinium salts as alkylating reagents. The reaction proceeds in the presence of visible light and in the absence of a photocatalyst via a light activated charge-transfer complex. We apply this photochemical stereoconvergent process to the total synthesis of the lignan natural products (-)-enterolactone and (-)-enterodiol. Mechanistic studies support the ground-state complexation of the reactive components followed by divergent charge-transfer processes involving catalyst-controlled radical chain and in-cage radical combination steps.
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Affiliation(s)
- Santhivardhana Reddy Yetra
- Department of Biochemistry, The University of Texas Southwestern Medical Center 5323 Harry Hines Boulevard Dallas Texas 75390-9038 USA
| | - Nathan Schmitt
- Department of Biochemistry, The University of Texas Southwestern Medical Center 5323 Harry Hines Boulevard Dallas Texas 75390-9038 USA
| | - Uttam K Tambar
- Department of Biochemistry, The University of Texas Southwestern Medical Center 5323 Harry Hines Boulevard Dallas Texas 75390-9038 USA
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3
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Xu J, Hu Y, Liao J, Du J, Wang L, Wang W, Wu Y, Guo H. Synthesis of Fluoroalkyl Cyclopentenes: Highly Diastereoselective Phosphine‐Catalyzed [3+2] Annulation of β‐Fluoroalkylvinyl Arylsulfones with Morita‐Baylis‐Hillman Carbonates. ChemistrySelect 2022. [DOI: 10.1002/slct.202203184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Jiaqing Xu
- Department of Chemistry and Innovation Center of Pesticide Research China Agricultural University 2 West Yuanmingyuan Road Beijing 100193 P. R. China
| | - Yimin Hu
- Department of Chemistry and Innovation Center of Pesticide Research China Agricultural University 2 West Yuanmingyuan Road Beijing 100193 P. R. China
| | - Jianning Liao
- Department of Chemistry and Innovation Center of Pesticide Research China Agricultural University 2 West Yuanmingyuan Road Beijing 100193 P. R. China
| | - Juan Du
- Department of Chemistry and Innovation Center of Pesticide Research China Agricultural University 2 West Yuanmingyuan Road Beijing 100193 P. R. China
| | | | - Wei Wang
- College of Public Health Zhengzhou University Zhengzhou 450001 China
| | - Yongjun Wu
- College of Public Health Zhengzhou University Zhengzhou 450001 China
| | - Hongchao Guo
- Department of Chemistry and Innovation Center of Pesticide Research China Agricultural University 2 West Yuanmingyuan Road Beijing 100193 P. R. China
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4
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Jang J, Kim DY. Synthesis of trifluoromethylated 4H‐1‐benzopyran derivatives via photocatalytic trifluoromethylation/oxidation/conjugate addition, and cyclization sequences of vinyl phenols. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200052] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jihoon Jang
- Soonchunhyang University Department of Chemistry and Department of ICT Environmental Health System KOREA, REPUBLIC OF
| | - Dae Young Kim
- Soonchunhyang University Department of Chemistry and Department of ICT Environmental Health Syntem Asan 336745 Chungnam KOREA, REPUBLIC OF
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5
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Jang J, Kim DY. Visible Light Photocatalytic Trifluoromethylation/SET Oxidation/Cycloaddition Sequences of 2‐Vinyl Phenols: Multicomponent Synthesis of 4
H
‐Chromenes. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100118] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Jihoon Jang
- Department of Chemistry and Department of ICT Environmental Health System Soonchunhyang University Asan 31538, Chungnam Republic of Korea
| | - Dae Young Kim
- Department of Chemistry and Department of ICT Environmental Health System Soonchunhyang University Asan 31538, Chungnam Republic of Korea
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6
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Löffler LE, Wirtz C, Fürstner A. Collective Total Synthesis of Casbane Diterpenes: One Strategy, Multiple Targets. Angew Chem Int Ed Engl 2021; 60:5316-5322. [PMID: 33289954 PMCID: PMC7986786 DOI: 10.1002/anie.202015243] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Indexed: 11/29/2022]
Abstract
Of the more than 100 casbane diterpenes known to date, only the eponymous parent hydrocarbon casbene itself has ever been targeted by chemical synthesis. Outlined herein is a conceptually new approach that brings not a single but a variety of casbane derivatives into reach, especially the more highly oxygenated and arguably more relevant members of this family. The key design elements are a catalyst-controlled intramolecular cyclopropanation with or without subsequent equilibration, chain extension of the resulting stereoisomeric cyclopropane building blocks by chemoselective hydroboration/cross-coupling, and the efficient closure of the strained macrobicyclic framework by ring-closing alkyne metathesis. A hydroxy-directed catalytic trans-hydrostannation allows for late-stage diversity. These virtues are manifested in the concise total syntheses of depressin, yuexiandajisu A, and ent-pekinenin C. The last compound turned out to be identical to euphorhylonal A, the structure of which had clearly been misassigned.
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Affiliation(s)
| | - Conny Wirtz
- Max-Planck-Institut für Kohlenforschung45470Mülheim/RuhrGermany
| | - Alois Fürstner
- Max-Planck-Institut für Kohlenforschung45470Mülheim/RuhrGermany
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7
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Löffler LE, Wirtz C, Fürstner A. Collective Total Synthesis of Casbane Diterpenes: One Strategy, Multiple Targets. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202015243] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
| | - Conny Wirtz
- Max-Planck-Institut für Kohlenforschung 45470 Mülheim/Ruhr Germany
| | - Alois Fürstner
- Max-Planck-Institut für Kohlenforschung 45470 Mülheim/Ruhr Germany
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8
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Badarau E, Reddy KHV, Loudet A, Simon C, Trembleau L, Claerhout S, Pair E, Massip S, Breton P, Lesur B, Goldstein S, Fourquez JM, Henlin JM, Ghosez L. Productive Syntheses of Privileged Scaffolds Inspired by the Recognition of a Diels-Alder Pattern Common to Three Classes of Natural Products. Chemistry 2020; 26:15477-15481. [PMID: 32428343 DOI: 10.1002/chem.202002372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Indexed: 11/10/2022]
Abstract
Identification of a common Diels-Alder pattern in three classes of bioactive natural products led us to study the synthesis and cycloaddition of a new class of cyclic dienes readily available from β,γ-unsaturated lactams. A practical and readily scalable route to the parent p-methoxybenzyl-protected 6- and 7-membered β,γ-unsaturated lactams was developed. These were readily transformed into the corresponding O-silylated dienes, which were reacted with dimethyl and diethyl fumarate to yield stereoselectively highly functionalized bicyclic adducts. These exhibited unexpected and versatile transformations upon acid hydrolysis depending on the nature of the dienophile substituents and the acid catalyst. All reactions have been performed on multigram quantities. These transformations provide a convenient, economical, and easily scalable pathway for the rapid construction of functionally and stereochemically dense privileged scaffolds for the construction of libraries of natural products-inspired molecules of pharmacological relevance.
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Affiliation(s)
- Eduard Badarau
- IECB, CNRS UMR 5248, Université de Bordeaux, CBMN, 2, rue Robert Escarpit, 33607, Pessac, France.,Bordeaux INP, CNRS UMR 5248, Université de Bordeaux, CBMN, Allée Geoffroy Saint Hilaire, Bat B14, 33600, Pessac, France
| | - K Harsha Vardhan Reddy
- IECB, CNRS UMR 5248, Université de Bordeaux, CBMN, 2, rue Robert Escarpit, 33607, Pessac, France
| | - Aurore Loudet
- IECB, CNRS UMR 5248, Université de Bordeaux, CBMN, 2, rue Robert Escarpit, 33607, Pessac, France
| | - Charles Simon
- IECB, CNRS UMR 5248, Université de Bordeaux, CBMN, 2, rue Robert Escarpit, 33607, Pessac, France
| | - Laurent Trembleau
- UCLouvain, Place Louis Pasteur 1, 1348, Louvain-la-Neuve, Belgium.,Chemistry, G95, School of Natural and Computing Sciences, University of Aberdeen, Meston Walk, Aberdeen, AB24 3UE, UK
| | - Stijn Claerhout
- IECB, CNRS UMR 5248, Université de Bordeaux, CBMN, 2, rue Robert Escarpit, 33607, Pessac, France
| | - Etienne Pair
- IECB, CNRS UMR 5248, Université de Bordeaux, CBMN, 2, rue Robert Escarpit, 33607, Pessac, France
| | - Stéphane Massip
- IECB, CNRS UMR 5248, Université de Bordeaux, CBMN, 2, rue Robert Escarpit, 33607, Pessac, France
| | - Philippe Breton
- Institut de Recherche Servier, 125, chemin de Ronde, 78290, Croissy Sur Seine, France
| | - Brigitte Lesur
- Institut de Recherche Servier, 125, chemin de Ronde, 78290, Croissy Sur Seine, France
| | - Solo Goldstein
- Institut de Recherche Servier, 125, chemin de Ronde, 78290, Croissy Sur Seine, France
| | - Jean-Marie Fourquez
- Institut de Recherche Servier, 125, chemin de Ronde, 78290, Croissy Sur Seine, France
| | - Jean Michel Henlin
- Institut de Recherche Servier, 125, chemin de Ronde, 78290, Croissy Sur Seine, France
| | - Léon Ghosez
- IECB, CNRS UMR 5248, Université de Bordeaux, CBMN, 2, rue Robert Escarpit, 33607, Pessac, France.,UCLouvain, Place Louis Pasteur 1, 1348, Louvain-la-Neuve, Belgium
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9
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Natural product-inspired aryl isonitriles as a new class of antimalarial compounds against drug-resistant parasites. Bioorg Med Chem 2020; 28:115678. [PMID: 32912433 DOI: 10.1016/j.bmc.2020.115678] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 07/16/2020] [Accepted: 07/26/2020] [Indexed: 01/26/2023]
Abstract
Malaria is a prevalent and deadly disease. The fast emergence of drug-resistant malaria parasites makes the situation even worse. Thus, developing new chemical entities, preferably with novel mechanisms of action, is urgent and important. Inspired by the complex and scarce isonitrile-containing terpene natural products, we evaluated a collection of easily prepared synthetic mono- and bis-isonitrile compounds, most of which feature a simple, but rigid stilbene backbone. From this collection, potent antimalarial lead compounds with EC50 value ranging from 27 to 88 nM against the Dd2 strain using a blood stage proliferation assay were identified. Preliminary SAR information showed that the isonitrile group is essential for the observed activity against the Dd2 strain and the bis-isonitrile compounds in general perform better than the corresponding mono-isonitrile compounds.
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10
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Usman M, Hu X, Liu W. Recent Advances and Perspectives in the Synthesis and Applications of Tetrahydrocarbazol‐4‐ones†. CHINESE J CHEM 2020. [DOI: 10.1002/cjoc.202000029] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Muhammad Usman
- Sauvage Center for Molecular Sciences; Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education); College of Chemistry and Molecular Sciences, Wuhan University Wuhan Hubei 430072 China
| | - Xu‐Dong Hu
- Sauvage Center for Molecular Sciences; Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education); College of Chemistry and Molecular Sciences, Wuhan University Wuhan Hubei 430072 China
| | - Wen‐Bo Liu
- Sauvage Center for Molecular Sciences; Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education); College of Chemistry and Molecular Sciences, Wuhan University Wuhan Hubei 430072 China
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11
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Jung HI, Kim Y, Kim DY. Electrochemical trifluoromethylation/semipinacol rearrangement sequences of alkenyl alcohols: synthesis of β-CF 3-substituted ketones. Org Biomol Chem 2019; 17:3319-3323. [PMID: 30869722 DOI: 10.1039/c9ob00373h] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Electrochemical oxidative radical trifluoromethylation/semipinacol rearrangement sequences of alkenyl alcohols were developed in this study. This approach is environmentally benign and uses the shelf-stable Langlois reagent as a trifluoromethyl radical precursor and electrons as the oxidizing reagents. The present protocol offers a facile route to prepare β-trifluoromethylated ketone derivatives.
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Affiliation(s)
- Hye Im Jung
- Department of Chemistry, Soonchunhyang University, Asan 31538, Chungnam, Republic of Korea.
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12
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Development of a high-throughput strategy for discovery of potent analogues of antibiotic lysocin E. Nat Commun 2019; 10:2992. [PMID: 31278250 PMCID: PMC6611794 DOI: 10.1038/s41467-019-10754-4] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Accepted: 05/30/2019] [Indexed: 12/13/2022] Open
Abstract
Lysocin E, a 37-membered natural depsipeptide, induces rapid bacteriolysis in methicillin-resistant Staphylococcus aureus via a unique menaquinone-dependent mechanism, presenting a promising therapeutic lead. Despite the great medical importance, exploring the potential utility of its derivatives as new platform structures for antibiotic development has remained a significant challenge. Here, we report a high-throughput strategy that enabled the preparation of thousands of analogues of lysocin E and large-scale structure-activity relationship analyses. We integrate 26-step total synthesis of 2401 cyclic peptides, tandem mass spectrometry-sequencing, and two microscale activity assays to identify 23 candidate compounds. Re-synthesis of these candidates shows that 11 of them (A1-A11) exhibit antimicrobial activity superior or comparable to that of lysocin E, and that lysocin E and A1-A11 share L-Leu-6 and L-Ile-11. Therefore, the present strategy allows us to efficiently decipher biologically crucial residues and identify potentially useful agents for the treatment of infectious diseases.
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13
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Mariappan A, Rajaguru K, Muthusubramanian S, Bhuvanesh N. A facile one pot synthesis of thiazolo[3,2-a]benzimidazole and pyran fused polyheterocyclic scaffolds. Org Biomol Chem 2019; 17:4196-4199. [PMID: 30931471 DOI: 10.1039/c9ob00300b] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient synthesis of dihydro-4H-benzo[4,5]imidazo[2,1-b]pyrano[2,3-d]thiazole by a multicomponent route starting from 2-((1H-benzo[d]imidazol-2-yl)thio)-1-phenylethan-1-one, an aromatic aldehyde and malononitrile is described. This protocol features a metal free approach with good substrate scope and decent yield. The heterocyclic skeleton obtained in this study may have interesting biological properties.
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Affiliation(s)
- Arumugam Mariappan
- Department of Organic Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai - 625 021, India.
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14
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Itoh H, Inoue M. Comprehensive Structure–Activity Relationship Studies of Macrocyclic Natural Products Enabled by Their Total Syntheses. Chem Rev 2019; 119:10002-10031. [DOI: 10.1021/acs.chemrev.9b00063] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Hiroaki Itoh
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Masayuki Inoue
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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15
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Kim Y, Kim DY. Synthesis of Fluoromethyl‐Substituted Cyclopentanones via Radical Fluorination and 1,2‐Alkyl Migration Cascade of Alkenyl Cyclobutanols. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900029] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Yubin Kim
- Department of ChemistrySoonchunhyang University Asan Chungnam 31538 Republic of Korea
| | - Dae Young Kim
- Department of ChemistrySoonchunhyang University Asan Chungnam 31538 Republic of Korea
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16
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Ibarra IA, Islas-Jácome A, González-Zamora E. Synthesis of polyheterocycles via multicomponent reactions. Org Biomol Chem 2019; 16:1402-1418. [PMID: 29238790 DOI: 10.1039/c7ob02305g] [Citation(s) in RCA: 145] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Polyheterocycles are one of the most desired synthetic targets due to their numerous and valuable applications in various fields. Multicomponent reactions (MCRs) are highly convergent one-pot processes, in which three or more reagents are combined sequentially to construct complex products, with almost all the atoms coming from the starting reagents. In this context, the syntheses of 'heterocycles' via MCR-based processes have been reviewed a number of times. However, there is not a single review (recent or otherwise) covering the synthesis of 'polyheterocycles' via a direct MCR or via a one-pot process involving MCRs coupled to further cyclizations (via ionic, metal-catalyzed, pericyclic, or free-radical-mediated cyclizations). This issue is consequently the main topic of the present review, which considers work from the last decade. The work is categorized according to the key processes involved in the syntheses of polyheterocycles, aiming to give readers an easy understanding of this MCR-based chemistry and to provide insights for further investigations. The reaction mechanisms providing novel elements to these MCR-based methods for the synthesis of polyheterocycles are also discussed.
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Affiliation(s)
- Ilich A Ibarra
- Laboratorio de Fisicoquímica y Reactividad de Superficies (LaFReS), Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior s/n, CU, Del. Coyoacán, 04510, Ciudad de México, Mexico
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17
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Davis DC, Hoch DG, Wu L, Abegg D, Martin BS, Zhang ZY, Adibekian A, Dai M. Total Synthesis, Biological Evaluation, and Target Identification of Rare Abies Sesquiterpenoids. J Am Chem Soc 2018; 140:17465-17473. [PMID: 30461272 DOI: 10.1021/jacs.8b07652] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Abiespiroside A (1), beshanzuenone C (2), and beshanzuenone D (3) belong to the Abies sesquiterpenoid family. Beshanzuenones C (2) and D (3) are isolated from the critically endangered Chinese fir tree species Abies beshanzuensis and demonstrated weak inhibiting activity against protein tyrosine phosphatase 1B (PTP1B). We describe herein the first total syntheses of these Abies sesquiterpenoids relying on the sustainable and inexpensive chiral pool molecule (+)-carvone. The syntheses feature a palladium-catalyzed hydrocarbonylative lactonization to install the 6,6-fused bicyclic ring system and a Dreiding-Schmidt reaction to build the oxaspirolactone moiety of these target molecules. Our chemical total syntheses of these Abies sesquiterpenoids have enabled (i) the validation of beshanzuenone C's weak PTP1B inhibiting potency, (ii) identification of new synthetic analogs with promising and selective protein tyrosine phosphatase SHP2 inhibiting potency, and (iii) preparation of azide-tagged probe molecules for target identification via a chemoproteomic approach. The latter has resulted in the identification and evaluation of DNA polymerase epsilon subunit 3 (POLE3) as one of the novel cellular targets of these Abies sesquiterpenoids and their analogs. More importantly, via POLE3 inactivation by probe molecule 29 and knockdown experiment, we further demonstrated that targeting POLE3 with small molecules may be a novel strategy for chemosensitization to DNA damaging drugs such as etoposide in cancer.
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Affiliation(s)
- Dexter C Davis
- Department of Chemistry, Center for Cancer Research and Institute for Drug Discovery , Purdue University , West Lafayette , Indiana 47907 , United States
| | - Dominic G Hoch
- Department of Chemistry , The Scripps Research Institute , 130 Scripps Way , Jupiter , Florida 33458 , United States
| | - Li Wu
- Department of Medicinal Chemistry and Molecular Pharmacology , Purdue University , West Lafayette , Indiana 47907 , United States
| | - Daniel Abegg
- Department of Chemistry , The Scripps Research Institute , 130 Scripps Way , Jupiter , Florida 33458 , United States
| | - Brandon S Martin
- Department of Chemistry, Center for Cancer Research and Institute for Drug Discovery , Purdue University , West Lafayette , Indiana 47907 , United States
| | - Zhong-Yin Zhang
- Department of Chemistry, Center for Cancer Research and Institute for Drug Discovery , Purdue University , West Lafayette , Indiana 47907 , United States.,Department of Medicinal Chemistry and Molecular Pharmacology , Purdue University , West Lafayette , Indiana 47907 , United States
| | - Alexander Adibekian
- Department of Chemistry , The Scripps Research Institute , 130 Scripps Way , Jupiter , Florida 33458 , United States
| | - Mingji Dai
- Department of Chemistry, Center for Cancer Research and Institute for Drug Discovery , Purdue University , West Lafayette , Indiana 47907 , United States
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18
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Fürstner A. trans-Hydrogenation, gem-Hydrogenation, and trans-Hydrometalation of Alkynes: An Interim Report on an Unorthodox Reactivity Paradigm. J Am Chem Soc 2018; 141:11-24. [DOI: 10.1021/jacs.8b09782] [Citation(s) in RCA: 111] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Alois Fürstner
- Max-Planck-Institut für Kohlenforschung, D-45470 Mülheim/Ruhr, Germany
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19
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Urabe D, Nakagawa Y, Mukai K, Fukushima KI, Aoki N, Itoh H, Nagatomo M, Inoue M. Total Synthesis and Biological Evaluation of 19-Hydroxysarmentogenin-3-O-α-l-rhamnoside, Trewianin, and Their Aglycons. J Org Chem 2018; 83:13888-13910. [DOI: 10.1021/acs.joc.8b02219] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Daisuke Urabe
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Yuki Nakagawa
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Ken Mukai
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Kei-ichiro Fukushima
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Naoto Aoki
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Hiroaki Itoh
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Masanori Nagatomo
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Masayuki Inoue
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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20
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Zhuo CX, Fürstner A. Catalysis-Based Total Syntheses of Pateamine A and DMDA-Pat A. J Am Chem Soc 2018; 140:10514-10523. [PMID: 30056701 DOI: 10.1021/jacs.8b05094] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The marine natural product pateamine A (1) and its somewhat simplified designer analogue DMDA-Pat A (2) (DMDA = desmethyl-desamino) are potently cytotoxic compounds; most notably, 2 had previously been found to exhibit a promising differential in vivo activity in xenograft melanoma models, even though the ubiquitous eukaryotic initiation factor 4A (eIF4A) constitutes its primary biological target. In addition, 1 had also been identified as a possible lead in the quest for medication against cachexia, an often lethal muscle wasting syndrome affecting many immunocompromised or cancer patients. The short supply of these macrodiolides, however, rendered a more detailed biological assessment difficult. Therefore, a new synthetic approach to 1 and 2 has been devised, which centers on an unorthodox strategy for the formation of the highly isomerization-prone but essential Z, E-configured dienoate substructure embedded into the macrocyclic core. This motif was encoded in the form of a 2-pyrone ring and unveiled only immediately before macrocyclization by an unconventional iron-catalyzed ring opening/cross-coupling reaction, in which the enol ester entity of the pyrone gains the role of a leaving group. Since the required precursor was readily available by gold catalysis, this strategy rendered the overall sequence short, robust, and scalable. A surprisingly easy protecting group management together with a much improved end game for the formation of the trienyl side chain via a modern Stille coupling protocol also helped to make the chosen route practical. Change of a single building block allowed the synthesis to be redirected from the natural lead compound 1 toward its almost equipotent analogue 2. Isolation and reactivity profiling of pyrone tricarbonyliron complexes provide mechanistic information as well as insights into the likely origins of the observed chemoselectivity.
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Affiliation(s)
- Chun-Xiang Zhuo
- Max-Planck-Institut für Kohlenforschung , D-45470 Mülheim/Ruhr , Germany
| | - Alois Fürstner
- Max-Planck-Institut für Kohlenforschung , D-45470 Mülheim/Ruhr , Germany
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21
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Visible light photoredox-catalyzed difluoromethylation and ring expansion of 1-(1-arylvinyl)cyclobutanols. J Fluor Chem 2018. [DOI: 10.1016/j.jfluchem.2018.04.015] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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22
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Mo X, Letort A, Roşca DA, Higashida K, Fürstner A. Site-Selectivetrans-Hydrostannation of 1,3- and 1,n-Diynes: Application to the Total Synthesis of Typhonosides E and F, and a Fluorinated Cerebroside Analogue. Chemistry 2018; 24:9667-9674. [DOI: 10.1002/chem.201801344] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Indexed: 12/16/2022]
Affiliation(s)
- Xiaobin Mo
- Max-Planck-Institut für Kohlenforschung; 45470 Mülheim/Ruhr Germany
| | - Aurélien Letort
- Max-Planck-Institut für Kohlenforschung; 45470 Mülheim/Ruhr Germany
| | | | - Kosuke Higashida
- Max-Planck-Institut für Kohlenforschung; 45470 Mülheim/Ruhr Germany
| | - Alois Fürstner
- Max-Planck-Institut für Kohlenforschung; 45470 Mülheim/Ruhr Germany
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23
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Zamudio-Medina A, García-González AN, Herrera-Carrillo GK, Zárate-Zárate D, Benavides-Macías A, Tamariz J, Ibarra IA, Islas-Jácome A, González-Zamora E. Synthesis of Polyheterocyclic Pyrrolo[3,4-b]pyridin-5-ones via a One-Pot (Ugi-3CR/aza Diels-Alder/N-acylation/aromatization/S N2) Process. A Suitable Alternative towards Novel Aza-Analogues of Falipamil. Molecules 2018; 23:E763. [PMID: 29584639 PMCID: PMC6017480 DOI: 10.3390/molecules23040763] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Revised: 03/16/2018] [Accepted: 03/23/2018] [Indexed: 11/30/2022] Open
Abstract
We describe the one-pot synthesis of twenty polyheterocyclic pyrrolo[3,4-b]pyridin-5-ones via a cascade process (Ugi-3CR/aza Diels-Alder/N-acylation/aromatization) in 20 to 95% overall yields, as well as four pharmacologically promising analogues via an improved cascade process (Ugi-3CR/aza Diels-Alder/N-acylation/aromatization/SN2): two piperazine-linked pyrrolo[3,4-b]pyridin-5-ones in 33 and 34%, and a couple of Falipamil aza-analogues in 30 and 35% overall yields. It is worth highlighting the good substrate scope found, because final products are furnished with alkyl, aryl, and heterocyclic substituents. The use of chain-ring tautomerizable isocyanides (as key reagents for the Ugi-type three component reaction) allowed for a rapid and efficient assembly of the polysubstituted oxindoles, which were used in situ toward the complex products, conferring features like robustness, sustainability, and the one-pot approach to this synthetic methodology.
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Affiliation(s)
- Angel Zamudio-Medina
- Unidad Profesional Interdisciplinaria de Biotecnología, Instituto Politécnico Nacional, Av. Acueducto de Guadalupe S/N, Barr. La Laguna Ticomán, C.P. 07340, Del. Gustavo A Madero, Ciudad de México, Mexico;
| | - Ailyn N. García-González
- Departamento de Química, Universidad Autónoma Metropolitana-Iztapalapa, San Rafael Atlixco 186, Col. Vicentina, C.P. 09340, Del. Iztapalapa, Ciudad de México, Mexico; (A.N.G.-G.); purpulove-@live.com.mx (G.K.H.-C.); (D.Z.-Z.)
| | - Genesis K. Herrera-Carrillo
- Departamento de Química, Universidad Autónoma Metropolitana-Iztapalapa, San Rafael Atlixco 186, Col. Vicentina, C.P. 09340, Del. Iztapalapa, Ciudad de México, Mexico; (A.N.G.-G.); purpulove-@live.com.mx (G.K.H.-C.); (D.Z.-Z.)
| | - Daniel Zárate-Zárate
- Departamento de Química, Universidad Autónoma Metropolitana-Iztapalapa, San Rafael Atlixco 186, Col. Vicentina, C.P. 09340, Del. Iztapalapa, Ciudad de México, Mexico; (A.N.G.-G.); purpulove-@live.com.mx (G.K.H.-C.); (D.Z.-Z.)
| | - Adriana Benavides-Macías
- Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Prol. Manuel Carpio y Plan de Ayala S/N, Col. Santo Tomás, C.P. 11340, Del. Miguel Hidalgo, Ciudad de México, Mexico; (A.B.-M.); (J.T.)
| | - Joaquín Tamariz
- Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Prol. Manuel Carpio y Plan de Ayala S/N, Col. Santo Tomás, C.P. 11340, Del. Miguel Hidalgo, Ciudad de México, Mexico; (A.B.-M.); (J.T.)
| | - Ilich A. Ibarra
- Laboratorio de Fisicoquímica y Reactividad de Superficies, Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior S/N, Ciudad Universitaria, C.P. 04510, Del. Coyoacán, Ciudad de México, Mexico
| | - Alejandro Islas-Jácome
- Departamento de Química, Universidad Autónoma Metropolitana-Iztapalapa, San Rafael Atlixco 186, Col. Vicentina, C.P. 09340, Del. Iztapalapa, Ciudad de México, Mexico; (A.N.G.-G.); purpulove-@live.com.mx (G.K.H.-C.); (D.Z.-Z.)
| | - Eduardo González-Zamora
- Departamento de Química, Universidad Autónoma Metropolitana-Iztapalapa, San Rafael Atlixco 186, Col. Vicentina, C.P. 09340, Del. Iztapalapa, Ciudad de México, Mexico; (A.N.G.-G.); purpulove-@live.com.mx (G.K.H.-C.); (D.Z.-Z.)
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24
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Patel S, Schmidt K, Hesterman J, Hoppin J. Advancing Drug Discovery and Development Using Molecular Imaging (ADDMI): an Interest Group of the World Molecular Imaging Society and an Inaugural Session on Positron Emission Tomography (PET). Mol Imaging Biol 2018; 19:348-356. [PMID: 28417265 DOI: 10.1007/s11307-017-1085-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Multi-modality molecular imaging techniques have expanded the role of imaging biomarkers in the pharmaceutical industry and are beginning to streamline the drug discovery and development process. The World Molecular Imaging Society (WMIS) serves as a forum for discussing innovative and exploratory multi-modal, interdisciplinary molecular imaging research with a mission of bridging the gap between pathology and in vivo imaging. To formalize the role of the WMIS in pharmaceutical research efforts, members of the society have formed an interest group entitled Advancing Drug Discovery and Development using Molecular Imaging (ADDMI). The ADDMI interest group launched their efforts at the 2016 World Molecular Imaging Congress by hosting a session of invited lectures on translational positron emission tomography (PET) imaging in the central nervous system. This article provides a synopsis of those lectures and frames the role of translational imaging biomarker strategies in the drug discovery and development process.
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Affiliation(s)
- Shil Patel
- Eisai AiM Institute, 4 Corporate Drive, Andover, MA, USA.
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25
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Varkhedkar R, Dogra S, Tiwari D, Hussain Y, Yadav PN, Pandey G. Discovery of Novel Muscarinic Receptor Modulators by Integrating a Natural Product Framework and a Bioactive Molecule. ChemMedChem 2018; 13:384-395. [DOI: 10.1002/cmdc.201800001] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2018] [Indexed: 01/11/2023]
Affiliation(s)
- Rajesh Varkhedkar
- Molecular Synthesis Laboratory, Centre of Biomedical Research (CBMR); Sanjay Gandhi Postgraduate Institute of Medical Sciences Campus; Raebareli Road Lucknow 226014 India
| | - Shalini Dogra
- Division of Pharmacology; CSIR - Central Drug Research Institute (CDRI); Lucknow 226031 India
| | - Divya Tiwari
- Molecular Synthesis Laboratory, Centre of Biomedical Research (CBMR); Sanjay Gandhi Postgraduate Institute of Medical Sciences Campus; Raebareli Road Lucknow 226014 India
| | - Yusuf Hussain
- Division of Pharmacology; CSIR - Central Drug Research Institute (CDRI); Lucknow 226031 India
| | - Prem Narayan Yadav
- Division of Pharmacology; CSIR - Central Drug Research Institute (CDRI); Lucknow 226031 India
| | - Ganesh Pandey
- Molecular Synthesis Laboratory, Centre of Biomedical Research (CBMR); Sanjay Gandhi Postgraduate Institute of Medical Sciences Campus; Raebareli Road Lucknow 226014 India
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26
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Affiliation(s)
- Léon Ghosez
- Institut Européen de Chimie et Biologie; CBMN UMR 5248 CNRS-Université de Bordeaux-IPB; 2, rue Robert Escarpit FR-33607 Pessac Cedex France
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27
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Meng Z, Souillart L, Monks B, Huwyler N, Herrmann J, Müller R, Fürstner A. A “Motif-Oriented” Total Synthesis of Nannocystin Ax. Preparation and Biological Assessment of Analogues. J Org Chem 2017; 83:6977-6994. [DOI: 10.1021/acs.joc.7b02871] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Zhanchao Meng
- Max-Planck-Institut für Kohlenforschung, D-45470 Mülheim/Ruhr, Germany
| | | | - Brendan Monks
- Max-Planck-Institut für Kohlenforschung, D-45470 Mülheim/Ruhr, Germany
| | - Nikolas Huwyler
- Max-Planck-Institut für Kohlenforschung, D-45470 Mülheim/Ruhr, Germany
| | - Jennifer Herrmann
- Helmholtz Institute for Pharmaceutical Research Saarland, Saarland University, 66123 Saarbrücken, Germany
| | - Rolf Müller
- Helmholtz Institute for Pharmaceutical Research Saarland, Saarland University, 66123 Saarbrücken, Germany
| | - Alois Fürstner
- Max-Planck-Institut für Kohlenforschung, D-45470 Mülheim/Ruhr, Germany
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28
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Kwon Y, Schulthoff S, Dao QM, Wirtz C, Fürstner A. Total Synthesis of Disciformycin A and B: Unusually Exigent Targets of Biological Significance. Chemistry 2017; 24:109-114. [DOI: 10.1002/chem.201705550] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Indexed: 12/23/2022]
Affiliation(s)
- Yonghoon Kwon
- Max-Planck-Institut für Kohlenforschung; 45470 Mülheim/Ruhr Germany
| | | | - Quang Minh Dao
- Max-Planck-Institut für Kohlenforschung; 45470 Mülheim/Ruhr Germany
| | - Conny Wirtz
- Max-Planck-Institut für Kohlenforschung; 45470 Mülheim/Ruhr Germany
| | - Alois Fürstner
- Max-Planck-Institut für Kohlenforschung; 45470 Mülheim/Ruhr Germany
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29
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Bayeh L, Tambar UK. Catalytic Asymmetric Intermolecular Allylic Functionalization of Unactivated Internal Alkenes. ACS Catal 2017; 7:8533-8543. [PMID: 30009088 DOI: 10.1021/acscatal.7b03081] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The asymmetric allylic functionalization of unactivated internal alkenes is an emerging strategy for the conversion of simple unsaturated starting materials into a diverse range of enantioenriched products. This Perspective summarizes the development of reactions wherein a chiral catalyst facilitates the intermolecular stereoselective reaction between an achiral unactivated internal alkene and a reagent.
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Affiliation(s)
- Liela Bayeh
- Department of Biochemistry, The University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, Texas 75390-9038, United States
| | - Uttam K. Tambar
- Department of Biochemistry, The University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, Texas 75390-9038, United States
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30
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Paz BM, Li Y, Thøgersen MK, Jørgensen KA. Enantioselective synthesis of cyclopenta[ b]benzofurans via an organocatalytic intramolecular double cyclization. Chem Sci 2017; 8:8086-8093. [PMID: 29568457 PMCID: PMC5855134 DOI: 10.1039/c7sc03006a] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2017] [Accepted: 09/30/2017] [Indexed: 12/16/2022] Open
Abstract
An enantioselective organocatalytic strategy, combining Brønsted base and N-heterocyclic carbene catalysis in a unique manner, is demonstrated for a concise construction of the privileged cyclopenta[b]benzofuran scaffold, present in many bioactive compounds having both academic and commercial interests. The reaction concept relies on an intramolecular one-pot double cyclization involving a cycle-specific enantioselective Michael addition followed by a benzoin condensation of ortho-substituted cinnamaldehydes. Cyclopenta[b]benzofurans were achieved in moderate to good yields, with excellent stereoselectivities. A proof of principle for a diastereodivergent variation is demonstrated through the synthesis of cyclopenta[b]benzofurans containing two contiguous aromatic substituents in a substitution pattern present in commercial and natural compounds. Furthermore, several transformations have been performed, demonstrating the synthetic utility of the products. Finally, insights into the activation mode and stereoindution models are presented for this new synthetic strategy.
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Affiliation(s)
- Bruno Matos Paz
- Department of Chemistry , Aarhus University , DK-8000 Aarhus C , Denmark .
| | - Yang Li
- Department of Chemistry , Aarhus University , DK-8000 Aarhus C , Denmark .
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31
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Sommer H, Fürstner A. Stereospecific Synthesis of Fluoroalkenes by Silver-Mediated Fluorination of Functionalized Alkenylstannanes. Chemistry 2016; 23:558-562. [PMID: 27883234 DOI: 10.1002/chem.201605444] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Indexed: 12/21/2022]
Abstract
The known procedures for the conversion of alkenylstannanes into the corresponding fluoroalkenes suffer from largely variable yields and a limited compatibility with functional groups; most notably, protodestannation becomes a serious issue whenever protic sites are present in the substrate. Outlined in this paper is a convenient alternative with a much improved application profile, which is largely unperturbed by free alcohols and amides of all sorts. Key to success is the use of F-TEDA-PF6 in combination with non-hygroscopic and bench-stable silver phosphinate (AgOP(O)Ph2 ) that acts as an essentially neutral, non-nucleophilic promotor and effective tin-scavenger at the same time. This new method opens many opportunities for late-stage fluorination of elaborate compounds far beyond the scope of the literature procedures, as witnessed by the preparation of a fluorinated macrolide antibiotic, a fluorinated prostaglandin derivative, and a set of fluorinated amino acid surrogates and peptide isosteres.
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Affiliation(s)
- Heiko Sommer
- Max-Planck-Institut für Kohlenforschung, 45470, Mülheim/Ruhr, Germany
| | - Alois Fürstner
- Max-Planck-Institut für Kohlenforschung, 45470, Mülheim/Ruhr, Germany
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32
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Arto T, de Santa-María IS, Chiara MD, Fañanás FJ, Rodríguez F. Berkelic Acid: Straightforward Analogue Synthesis and Studies of Activity Against Selected Cancer Cell Lines. European J Org Chem 2016. [DOI: 10.1002/ejoc.201601194] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Tamara Arto
- Instituto Universitario de Química Organometálica “Enrique Moles”; Universidad de Oviedo; Julián Clavería, 8 E-33006 Oviedo Spain
| | - Inés Sáenz de Santa-María
- Servicio de Otorrinolaringología; Hospital Universitario Central de Asturias; Instituto Universitario de Oncología del Principado de Asturias; Universidad de Oviedo; E-33006 Oviedo Spain
| | - María-Dolores Chiara
- Servicio de Otorrinolaringología; Hospital Universitario Central de Asturias; Instituto Universitario de Oncología del Principado de Asturias; Universidad de Oviedo; E-33006 Oviedo Spain
| | - Francisco J. Fañanás
- Instituto Universitario de Química Organometálica “Enrique Moles”; Universidad de Oviedo; Julián Clavería, 8 E-33006 Oviedo Spain
| | - Félix Rodríguez
- Instituto Universitario de Química Organometálica “Enrique Moles”; Universidad de Oviedo; Julián Clavería, 8 E-33006 Oviedo Spain
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33
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Selective reaction route in the construction of the pyrrolo[3,4-b]pyridin-5-one core from a variety of 5-aminooxazoles and maleic anhydride. A DFT study. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.06.099] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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34
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Zhuo C, Fürstner A. Concise Synthesis of a Pateamine A Analogue with In Vivo Anticancer Activity Based on an Iron‐Catalyzed Pyrone Ring Opening/Cross‐Coupling. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201602125] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Chun‐Xiang Zhuo
- Max-Planck-Institut für Kohlenforschung 45470 Mülheim/Ruhr Germany
| | - Alois Fürstner
- Max-Planck-Institut für Kohlenforschung 45470 Mülheim/Ruhr Germany
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35
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Zhuo C, Fürstner A. Concise Synthesis of a Pateamine A Analogue with In Vivo Anticancer Activity Based on an Iron‐Catalyzed Pyrone Ring Opening/Cross‐Coupling. Angew Chem Int Ed Engl 2016; 55:6051-6. [DOI: 10.1002/anie.201602125] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Indexed: 11/07/2022]
Affiliation(s)
- Chun‐Xiang Zhuo
- Max-Planck-Institut für Kohlenforschung 45470 Mülheim/Ruhr Germany
| | - Alois Fürstner
- Max-Planck-Institut für Kohlenforschung 45470 Mülheim/Ruhr Germany
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36
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Schweighauser L, Bodoky I, Kessler SN, Häussinger D, Donsbach C, Wegner HA. Bidentate Lewis Acid Catalyzed Domino Diels-Alder Reaction of Phthalazine for the Synthesis of Bridged Oligocyclic Tetrahydronaphthalenes. Org Lett 2016; 18:1330-3. [PMID: 26943286 DOI: 10.1021/acs.orglett.6b00276] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A domino process consisting of an inverse and a normal electron-demand Diels-Alder reaction is presented for the formation of bridged tri- and tetracyclic 1,2,3,4-tetrahydronaphthalenes catalyzed by a bidentate Lewis acid. The products were synthesized in a one-pot reaction from commercially available starting materials and contain up to six stereogenic centers. The tetrahydronaphthalenes were isolated as single diastereomers and are derivatives of phenylethylamine, which is well-known as a scaffold of amphetamine or dopamine.
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Affiliation(s)
- Luca Schweighauser
- Institute of Organic Chemistry, Justus Liebig University Giessen , Heinrich-Buff-Ring 17, 35392 Giessen, Germany
| | - Ina Bodoky
- Department of Chemistry, University of Basel , St. Johanns-Ring 19, 4056 Basel, Switzerland
| | - Simon N Kessler
- Department of Chemistry, University of Basel , St. Johanns-Ring 19, 4056 Basel, Switzerland
| | - Daniel Häussinger
- Department of Chemistry, University of Basel , St. Johanns-Ring 19, 4056 Basel, Switzerland
| | - Carsten Donsbach
- Fachbereich Chemie and Wissenschaftliches Zentrum für Materialwissenschaften (WZMW), Philipps-Universität Marburg , Hans-Meerwein-Strasse, 35043 Marburg, Germany
| | - Hermann A Wegner
- Institute of Organic Chemistry, Justus Liebig University Giessen , Heinrich-Buff-Ring 17, 35392 Giessen, Germany
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37
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Abstract
The carbon–carbon (C–C) bond forms the ‘backbone’ of nearly every organic molecule, and lies at the heart of the chemical sciences! Let us explore designing of carbon–carbon frameworks at ambient conditions.
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Affiliation(s)
- Goutam Brahmachari
- Laboratory of Natural Products & Organic Synthesis
- Department of Chemistry
- Visva-Bharati (a Central University)
- Santiniketan-731235
- India
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38
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Yokoshima S, Ishikawa M, Beniyama Y, Fukuyama T. Chemical Transformation of an Intermediate in the Synthesis of Huperzine A, Leading to a Diverse Array of Molecules. Chem Pharm Bull (Tokyo) 2016; 64:1528-1531. [DOI: 10.1248/cpb.c16-00507] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
| | | | - Youko Beniyama
- Graduate School of Pharmaceutical Sciences, Nagoya University
| | - Tohru Fukuyama
- Graduate School of Pharmaceutical Sciences, Nagoya University
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39
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Haydl AM, Breit B. Atom-Economical Dimerization Strategy by the Rhodium-Catalyzed Addition of Carboxylic Acids to Allenes: Protecting-Group-Free Synthesis of Clavosolide A and Late-Stage Modification. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201506618] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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40
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Haydl AM, Breit B. Atom‐Economical Dimerization Strategy by the Rhodium‐Catalyzed Addition of Carboxylic Acids to Allenes: Protecting‐Group‐Free Synthesis of Clavosolide A and Late‐Stage Modification. Angew Chem Int Ed Engl 2015; 54:15530-4. [DOI: 10.1002/anie.201506618] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Revised: 10/19/2015] [Indexed: 12/12/2022]
Affiliation(s)
- Alexander M. Haydl
- Institut für Organische Chemie, Albert‐Ludwigs‐Universität Freiburg, Albertstrasse 21, 79104 Freiburg im Breisgau (Germany)
| | - Bernhard Breit
- Institut für Organische Chemie, Albert‐Ludwigs‐Universität Freiburg, Albertstrasse 21, 79104 Freiburg im Breisgau (Germany)
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41
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Visible-light-induced photocatalytic trifluoromethylation/1,2-carbon migration sequences for the synthesis of CF3-substituted cyclic ketones. J Fluor Chem 2015. [DOI: 10.1016/j.jfluchem.2015.08.008] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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42
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Camp D, Garavelas A, Campitelli M. Analysis of Physicochemical Properties for Drugs of Natural Origin. JOURNAL OF NATURAL PRODUCTS 2015; 78:1370-1382. [PMID: 26039921 DOI: 10.1021/acs.jnatprod.5b00255] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The impact of time, therapy area, and route of administration on 13 physicochemical properties calculated for 664 drugs developed from a natural prototype was investigated. The mean values for the majority of properties sampled over five periods from pre-1900 to 2013 were found to change in a statistically significant manner. In contrast, lipophilicity and aromatic ring count remained relatively constant, suggesting that these parameters are the most important for successful prosecution of a natural product drug discovery program if the route of administration is not focused exclusively on oral availability. An examination by therapy area revealed that anti-infective agents had the most differences in physicochemical property profiles compared with other areas, particularly with respect to lipophilicity. However, when this group was removed, the variation between the mean values for lipophilicity and aromatic ring count across the remaining therapy areas was again found not to change in a meaningful manner, further highlighting the importance of these two parameters. The vast majority of drugs with a natural progenitor were formulated for either oral and/or injectable administration. Injectables were, on average, larger and more polar than drugs developed for oral, topical, and inhalation routes.
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Affiliation(s)
| | | | - Marc Campitelli
- §QIMR Berghofer Medical Research Institute, Herston, QLD 4006, Australia
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43
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Ibrahim-Ouali M. Total synthesis of steroids and heterosteroids from BISTRO. Steroids 2015; 98:9-28. [PMID: 25697055 DOI: 10.1016/j.steroids.2015.02.014] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2014] [Revised: 01/21/2015] [Accepted: 02/09/2015] [Indexed: 11/24/2022]
Abstract
Due to their high profile biological activity, the steroids are among the most important secondary metabolites. A review of literature on the total synthesis of steroids starting from BISTRO (1,8-bis(trimethylsilyl)-2,6-octadiene) is presented.
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Affiliation(s)
- Malika Ibrahim-Ouali
- Aix Marseille Université, Centrale Marseille, CNRS, iSm2 UMR 7313, 13397 Marseille, France.
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44
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Rummelt SM, Preindl J, Sommer H, Fürstner A. Selective Formation of a Trisubstituted Alkene Motif bytrans-Hydrostannation/Stille Coupling: Application to the Total Synthesis and Late-Stage Modification of 5,6-Dihydrocineromycin B. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201501608] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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45
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Rummelt SM, Preindl J, Sommer H, Fürstner A. Selective Formation of a Trisubstituted Alkene Motif bytrans-Hydrostannation/Stille Coupling: Application to the Total Synthesis and Late-Stage Modification of 5,6-Dihydrocineromycin B. Angew Chem Int Ed Engl 2015; 54:6241-5. [DOI: 10.1002/anie.201501608] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2015] [Revised: 03/10/2015] [Indexed: 12/20/2022]
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46
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Urabe D, Asaba T, Inoue M. Convergent Strategies in Total Syntheses of Complex Terpenoids. Chem Rev 2015; 115:9207-31. [DOI: 10.1021/cr500716f] [Citation(s) in RCA: 108] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Daisuke Urabe
- Graduate
School of Pharmaceutical
Sciences, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Taro Asaba
- Graduate
School of Pharmaceutical
Sciences, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Masayuki Inoue
- Graduate
School of Pharmaceutical
Sciences, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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47
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Huang YY, Yang X, Chen Z, Verpoort F, Shibata N. Catalytic Asymmetric Synthesis of Enantioenriched Heterocycles Bearing a CCF3Stereogenic Center. Chemistry 2015; 21:8664-84. [DOI: 10.1002/chem.201500361] [Citation(s) in RCA: 103] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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48
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Bai Y, Dai M. Strategies and Methods for the Synthesis of Anticancer Natural Product Neopeltolide and its Analogs. CURR ORG CHEM 2015; 19:871-885. [PMID: 27182194 PMCID: PMC4863658 DOI: 10.2174/1385272819666150119225149] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Neopeltolide, isolated in 2007, with its novel structural features and potent anti cancer cell proliferation activity, has attracted a tremendous amount of synthetic efforts. This review briefly and chronologically summarizes each of the synthesis with the main focus on the strategies and methodologies for the construction of its cis-tetrahydropyran-containing macrolactone core.
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Affiliation(s)
- Yu Bai
- Department of Chemistry and Center for Cancer Research, Purdue University, 720 Clinic Drive, West Lafayette, IN 47907, USA
| | - Mingji Dai
- Department of Chemistry and Center for Cancer Research, Purdue University, 720 Clinic Drive, West Lafayette, IN 47907, USA
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49
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Mao J, Kuranaga T, Hamamoto H, Sekimizu K, Inoue M. Rational Design, Synthesis, and Biological Evaluation of Lactam-Bridged Gramicidin A Analogues: Discovery of a Low-Hemolytic Antibacterial Peptide. ChemMedChem 2014; 10:540-5. [DOI: 10.1002/cmdc.201402473] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2014] [Indexed: 11/09/2022]
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50
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Murai M, Kaji T, Kuranaga T, Hamamoto H, Sekimizu K, Inoue M. Total Synthesis and Biological Evaluation of the Antibiotic Lysocin E and Its Enantiomeric, Epimeric, and N-Demethylated Analogues. Angew Chem Int Ed Engl 2014; 54:1556-60. [DOI: 10.1002/anie.201410270] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2014] [Indexed: 11/11/2022]
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