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Yuan J, Jain P, Antilla JC. Chiral Phosphoric Acid-Catalyzed Enantio- and Diastereoselective Allylboration of Aldehydes with β,γ-Substituted Allylboronates. J Org Chem 2022; 87:8256-8266. [PMID: 35657081 DOI: 10.1021/acs.joc.2c00764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The catalytic asymmetric addition of β,γ-substituted allylboronates to aldehydes has been described. Promoted by 5 mol % chiral phosphoric acid, the reactions were broadly applicable, scalable, and efficient, allowing for the formation of 3,4-anti/syn-homoallylic alcohols bearing adjacent tertiary or quaternary stereogenic centers in a highly enantio- and diastereoselective manner (≤99% ee and dr >20:1). The rigid chairlike transition state involving the chiral phosphoric acid contributed to the highly controlled reaction.
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Affiliation(s)
- Jinping Yuan
- Institute for Molecular Design and Synthesis, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, P. R. China
| | - Pankaj Jain
- Novartis Institutes for BioMedical Research, Cambridge, Massachusetts 02139, United States
| | - Jon C Antilla
- Institute for Molecular Design and Synthesis, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, P. R. China.,School of Science, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, P. R. China
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2
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Schempp TT, Krische MJ. Total Synthesis of the Acetyl CoA Carboxylase Inhibitor Soraphen A: Asymmetric Tsuji Reduction Enables Successive Olefin Metathesis. J Am Chem Soc 2022; 144:1016-1022. [PMID: 35005976 PMCID: PMC8852841 DOI: 10.1021/jacs.1c12063] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The total synthesis of soraphen A, a myxobacterial metabolite and inhibitor of acetyl CoA carboxylase, was completed in 11 steps (longest linear sequence), less than half the steps previously required. Seven metal-catalyzed processes were deployed to unlock step-economy (comprising five asymmetric processes and four C-C bond formations). The present route does not utilize chiral auxiliaries, and four of five C-C bond formations exploit non-premetalated partners. To maximize convergency, an asymmetric Tsuji reduction was developed using a Pd-AntPhos catalyst that allows a metathesis-inactive allylic carbonate to serve as a masked terminal olefin, thereby enabling successive olefin metathesis events.
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Affiliation(s)
- Tabitha T. Schempp
- Department of Chemistry, University of Texas at Austin, Austin, Texas 78712, United States
| | - Michael J. Krische
- Department of Chemistry, University of Texas at Austin, Austin, Texas 78712, United States
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3
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Yuan J, Jain P, Antilla JC. Bi(cyclopentyl)diol-Derived Boronates in Highly Enantioselective Chiral Phosphoric Acid-Catalyzed Allylation, Propargylation, and Crotylation of Aldehydes. J Org Chem 2020; 85:12988-13003. [PMID: 32960066 DOI: 10.1021/acs.joc.0c01646] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
In this study, we disclose the catalytic addition of bi(cyclopentyl)diol-derived boronates to aldehydes promoted by chiral phosphoric acids, allowing for the formation of enantioenriched homoallylic, propargylic, and crotylic alcohols (up to >99% enantiomeric excess (ee), diastereomeric ratio (dr) >20:1). These boronate substrates provided superior enantioselectivities, allowing for the reactions to proceed with low catalyst loading (0.5-5 mol %) and reduced reaction time (15 min at room temperature for aldehyde allylboration). A wide substrate scope was exhibited, and the novel boronates provided high enantiocontrol. Reactions with substituted allylboronates and aldehydes yielded vicinal stereogenic alcohols bearing β-tertiary or quaternary carbon centers. High enantio- and diastereoselectivities were found due to the closed six-membered chair-like transition state, with backbone modifications of the boronate and its interactions with the chiral phosphoric acid being the most likely contributing factor.
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Affiliation(s)
- Jinping Yuan
- Institute for Molecular Design and Synthesis, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Pankaj Jain
- Novartis Institutes for BioMedical Research, Cambridge, Massachusetts 02139, United States
| | - Jon C Antilla
- Institute for Molecular Design and Synthesis, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China.,School of Sciences, Zhejiang Sci-Tech University, Hangzhou City, Zhejiang Province 310018, China
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Chen L, Duan Y, Wei H, Ning H, Bi C, Zhao Y, Qin Y, Li Y. Acetyl-CoA carboxylase (ACC) as a therapeutic target for metabolic syndrome and recent developments in ACC1/2 inhibitors. Expert Opin Investig Drugs 2019; 28:917-930. [PMID: 31430206 DOI: 10.1080/13543784.2019.1657825] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Introduction: Acetyl-CoA Carboxylase (ACC) is an essential rate-limiting enzyme in fatty acid metabolism. For many years, ACC inhibitors have gained great attention for developing therapeutics for various human diseases including microbial infections, metabolic syndrome, obesity, diabetes, and cancer. Areas covered: We present a comprehensive review and update of ACC inhibitors. We look at the current advance of ACC inhibitors in clinical studies and the implications in drug discovery. We searched ScienceDirect ( https://www.sciencedirect.com/ ), ACS ( https://pubs.acs.org/ ), Wiley ( https://onlinelibrary.wiley.com/ ), NCBI ( https://www.ncbi.nlm.nih.gov/ ) and World Health Organization ( https://www.who.int/ ). The keywords used were Acetyl-CoA Carboxylase, lipid, inhibitors and metabolic syndrome. All documents were published before June 2019. Expert opinion: The key regulatory role of ACC in fatty acid synthesis and oxidation pathways makes it an attractive target for various metabolic diseases. In particular, the combination of ACC inhibitors with other drugs is a new strategy for the treatment of nonalcoholic fatty liver disease and nonalcoholic steatohepatitis. Expanding the clinical indications for ACC inhibitors will be one of the hot directions in the future. It is also worth looking forward to exploring safe and efficient inhibitors that act on the BC domain of ACC.
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Affiliation(s)
- Leyuan Chen
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Peking Union Medical College & Chinese Academy of Medical Sciences , Tianjin , China
| | - Yuqing Duan
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Peking Union Medical College & Chinese Academy of Medical Sciences , Tianjin , China
| | - Huiqiang Wei
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Peking Union Medical College & Chinese Academy of Medical Sciences , Tianjin , China
| | - Hongxin Ning
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Peking Union Medical College & Chinese Academy of Medical Sciences , Tianjin , China
| | - Changfen Bi
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Peking Union Medical College & Chinese Academy of Medical Sciences , Tianjin , China
| | - Ying Zhao
- School of Pharmacy and Bioengineering, Chongqing University of Technology , Chongqing , China
| | - Yong Qin
- Department of Melanoma Medical Oncology, The University of Texas MD Anderson Cancer Center , Houston , TX , USA
| | - Yiliang Li
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Peking Union Medical College & Chinese Academy of Medical Sciences , Tianjin , China
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Naini A, Sasse F, Brönstrup M. The intriguing chemistry and biology of soraphens. Nat Prod Rep 2019; 36:1394-1411. [PMID: 30950477 DOI: 10.1039/c9np00008a] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Covering: up to the end of 2018Soraphens are a class of polyketide natural products discovered from the myxobacterial strain Sorangium cellulosum. The review is intended to provide an overview on the biosynthesis, chemistry and biological properties of soraphens, that represent a prime example to showcase the value of natural products as tools to decipher cell biology, but also to open novel therapeutic options. The prototype soraphen A is an inhibitor of acetyl coenzyme A carboxylase (ACC1/2), an enzyme that converts acetyl-CoA to malonyl-CoA and thereby controls essential cellular metabolic processes like lipogenesis and fatty acid oxidation. Soraphens illustrate how the inhibition of a single target (ACC1/2) may be explored to treat various pathological conditions: initially developed as a fungicide, efforts in the past decade were directed towards human diseases, including diabetes/obesity, cancer, hepatitis C, HIV, and autoimmune disease - and led to a synthetic molecule, discovered by virtual screening of the allosteric binding site of soraphen in ACC, that is currently in phase 2 clinical trials. We will summarize how structural analogs of soraphen A have been generated through extensive isolation efforts, genetic engineering of the biosynthetic gene cluster, semisynthesis as well as partial and total synthesis.
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Affiliation(s)
- Arun Naini
- Department of Chemical Biology, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany. and Center of Biomolecular Drug Research (BMWZ), Leibniz University, 30159 Hannover, Germany
| | - Florenz Sasse
- Center of Biomolecular Drug Research (BMWZ), Leibniz University, 30159 Hannover, Germany
| | - Mark Brönstrup
- Department of Chemical Biology, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany. and Center of Biomolecular Drug Research (BMWZ), Leibniz University, 30159 Hannover, Germany and German Center for Infection Research (DZIF), Partner Site Hannover-Braunschweig, Germany
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6
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Total synthesis based modification of benzoquinone ansamycin antibiotics: C8 diversification of C5-C15 fragments. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.01.024] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Franke R, Hinkelmann B, Fetz V, Stradal T, Sasse F, Klawonn F, Brönstrup M. xCELLanalyzer: A Framework for the Analysis of Cellular Impedance Measurements for Mode of Action Discovery. SLAS DISCOVERY 2019; 24:213-223. [PMID: 30681906 DOI: 10.1177/2472555218819459] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Mode of action (MoA) identification of bioactive compounds is very often a challenging and time-consuming task. We used a label-free kinetic profiling method based on an impedance readout to monitor the time-dependent cellular response profiles for the interaction of bioactive natural products and other small molecules with mammalian cells. Such approaches have been rarely used so far due to the lack of data mining tools to properly capture the characteristics of the impedance curves. We developed a data analysis pipeline for the xCELLigence Real-Time Cell Analysis detection platform to process the data, assess and score their reproducibility, and provide rank-based MoA predictions for a reference set of 60 bioactive compounds. The method can reveal additional, previously unknown targets, as exemplified by the identification of tubulin-destabilizing activities of the RNA synthesis inhibitor actinomycin D and the effects on DNA replication of vioprolide A. The data analysis pipeline is based on the statistical programming language R and is available to the scientific community through a GitHub repository.
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Affiliation(s)
- Raimo Franke
- 1 Department of Chemical Biology, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Bettina Hinkelmann
- 1 Department of Chemical Biology, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Verena Fetz
- 1 Department of Chemical Biology, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Theresia Stradal
- 2 Department of Cell Biology, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Florenz Sasse
- 1 Department of Chemical Biology, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Frank Klawonn
- 3 Biostatistics Group, Helmholtz Centre for Infection Research, Braunschweig, Germany.,4 Department of Computer Science, Ostfalia University, Wolfenbuettel, Germany
| | - Mark Brönstrup
- 1 Department of Chemical Biology, Helmholtz Centre for Infection Research, Braunschweig, Germany.,5 Center of Biomolecular Drug Research (BMWZ), Institute of Organic Chemistry, Leibniz Universität, Hannover, Germany
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Abidi N, Franke R, Findeisen P, Klawonn F. Alignment of time-resolved data from high throughput experiments. J Bioinform Comput Biol 2016; 14:1650030. [PMID: 27629153 DOI: 10.1142/s021972001650030x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
To better understand the dynamics of the underlying processes in cells, it is necessary to take measurements over a time course. Modern high-throughput technologies are often used for this purpose to measure the behavior of cell products like metabolites, peptides, proteins, [Formula: see text]RNA or mRNA at different points in time. Compared to classical time series, the number of time points is usually very limited and the measurements are taken at irregular time intervals. The main reasons for this are the costs of the experiments and the fact that the dynamic behavior usually shows a strong reaction and fast changes shortly after a stimulus and then slowly converges to a certain stable state. Another reason might simply be missing values. It is common to repeat the experiments and to have replicates in order to carry out a more reliable analysis. The ideal assumptions that the initial stimulus really started exactly at the same time for all replicates and that the replicates are perfectly synchronized are seldom satisfied. Therefore, there is a need to first adjust or align the time-resolved data before further analysis is carried out. Dynamic time warping (DTW) is considered as one of the common alignment techniques for time series data with equidistant time points. In this paper, we modified the DTW algorithm so that it can align sequences with measurements at different, non-equidistant time points with large gaps in between. This type of data is usually known as time-resolved data characterized by irregular time intervals between measurements as well as non-identical time points for different replicates. This new algorithm can be easily used to align time-resolved data from high-throughput experiments and to come across existing problems such as time scarcity and existing noise in the measurements. We propose a modified method of DTW to adapt requirements imposed by time-resolved data by use of monotone cubic interpolation splines. Our presented approach provides a nonlinear alignment of two sequences that neither need to have equi-distant time points nor measurements at identical time points. The proposed method is evaluated with artificial as well as real data. The software is available as an R package tra (Time-Resolved data Alignment) which is freely available at: http://public.ostfalia.de/klawonn/tra.zip .
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Affiliation(s)
- Nada Abidi
- 1 Biostatistics, Helmholtz Centre for Infection Research, Inhoffenstr. 7, D-38124 Braunschweig, Germany
| | - Raimo Franke
- 2 Chemical Biology, Helmholtz Centre for Infection Research, Inhoffenstr. 7, D-38124 Braunschweig, Germany
| | - Peter Findeisen
- 3 Institute for Clinical Chemistry, Medical Faculty Mannheim, Heidelberg University Theodor-Kutzer-Ufer 1-3, D-68167 Mannheim, Germany
| | - Frank Klawonn
- 1 Biostatistics, Helmholtz Centre for Infection Research, Inhoffenstr. 7, D-38124 Braunschweig, Germany.,4 Department of Computer Science, Ostfalia University of Applied Sciences Salzdahlumer Str. 46/48, D-38302 Wolfenbuettel, Germany
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Overwin H, González M, Méndez V, Cárdenas F, Seeger M, Hofer B. Stepwise conversion of flavonoids by engineered dioxygenases and dehydrogenase: Characterization of novel biotransformation products. Enzyme Microb Technol 2015; 81:63-71. [DOI: 10.1016/j.enzmictec.2015.08.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2015] [Revised: 07/28/2015] [Accepted: 08/05/2015] [Indexed: 10/23/2022]
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Bułyszko I, Dräger G, Klenge A, Kirschning A. Evaluation of the Synthetic Potential of an AHBA Knockout Mutant of the Rifamycin Producer Amycolatopsis mediterranei. Chemistry 2015; 21:19231-42. [PMID: 26559164 DOI: 10.1002/chem.201503548] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2015] [Indexed: 12/17/2022]
Abstract
Supplementing an AHBA(-) mutant strain of Amycolatopsis mediterranei, the rifamycin producer, with a series of benzoic acid derivatives yielded new tetraketides containing different phenyl groups. These mutasynthetic studies revealed unique reductive properties of A. mediterranei towards nitro- and azidoarenes, leading to the corresponding anilines. In selected cases, the yields of mutaproducts (fermentation products isolated after feeding bacteria with chemically prepared analogs of natural building blocks) obtained are in a range (up to 118 mg L(-1)) that renders them useful as chiral building blocks for further synthetic endeavors. The configuration of the stereogenic centers at C6 and C7 was determined to be 6R,7S for one representative tetraketide. Importantly, processing beyond the tetraketide stage is not always blocked when the formation of the bicyclic naphthalene precursor cannot occur. This was proven by formation of a bromo undecaketide, an observation that has implications regarding the evolutionary development of rifamycin biosynthesis.
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Affiliation(s)
- Ilona Bułyszko
- Institute of Organic Chemistry and Center of Biomolecular Drug Research (BMWZ), Leibniz Universität Hannover, Schneiderberg 1B, 30167 Hannover (Germany)
| | - Gerald Dräger
- Institute of Organic Chemistry and Center of Biomolecular Drug Research (BMWZ), Leibniz Universität Hannover, Schneiderberg 1B, 30167 Hannover (Germany)
| | - Anja Klenge
- Institute of Organic Chemistry and Center of Biomolecular Drug Research (BMWZ), Leibniz Universität Hannover, Schneiderberg 1B, 30167 Hannover (Germany)
| | - Andreas Kirschning
- Institute of Organic Chemistry and Center of Biomolecular Drug Research (BMWZ), Leibniz Universität Hannover, Schneiderberg 1B, 30167 Hannover (Germany).
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Koutsoudakis G, Romero-Brey I, Berger C, Pérez-Vilaró G, Monteiro Perin P, Vondran FWR, Kalesse M, Harmrolfs K, Müller R, Martinez JP, Pietschmann T, Bartenschlager R, Brönstrup M, Meyerhans A, Díez J. Soraphen A: A broad-spectrum antiviral natural product with potent anti-hepatitis C virus activity. J Hepatol 2015; 63:813-21. [PMID: 26070407 DOI: 10.1016/j.jhep.2015.06.002] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2015] [Revised: 05/28/2015] [Accepted: 06/01/2015] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS Soraphen A (SorA) is a myxobacterial metabolite that inhibits the acetyl-CoA carboxylase, a key enzyme in lipid biosynthesis. We have previously identified SorA to efficiently inhibit the human immunodeficiency virus (HIV). The aim of the present study was to evaluate the capacity of SorA and analogues to inhibit hepatitis C virus (HCV) infection. METHODS SorA inhibition capacity was evaluated in vitro using cell culture derived HCV, HCV pseudoparticles and subgenomic replicons. Infection studies were performed in the hepatoma cell line HuH7/Scr and in primary human hepatocytes. The effects of SorA on membranous web formation were analysed by electron microscopy. RESULTS SorA potently inhibits HCV infection at nanomolar concentrations. Obtained EC50 values were 0.70 nM with a HCV reporter genome, 2.30 nM with wild-type HCV and 2.52 nM with subgenomic HCV replicons. SorA neither inhibited HCV RNA translation nor HCV entry, as demonstrated with subgenomic HCV replicons and HCV pseudoparticles, suggesting an effect on HCV replication. Consistent with this, evidence was obtained that SorA interferes with formation of the membranous web, the site of HCV replication. Finally, a series of natural and synthetic SorA analogues helped to establish a first structure-activity relationship. CONCLUSIONS SorA has a very potent anti-HCV activity. Since it also interferes with the membranous web formation, SorA is an excellent tool to unravel the mechanism of HCV replication.
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Affiliation(s)
- George Koutsoudakis
- Molecular Virology Group, Department of Experimental and Health Sciences, Universitat Pompeu Fabra, Barcelona, Spain
| | - Inés Romero-Brey
- Department of Infectious Diseases, Molecular Virology, Heidelberg University, Heidelberg, Germany
| | - Carola Berger
- Department of Infectious Diseases, Molecular Virology, Heidelberg University, Heidelberg, Germany
| | - Gemma Pérez-Vilaró
- Molecular Virology Group, Department of Experimental and Health Sciences, Universitat Pompeu Fabra, Barcelona, Spain
| | - Paula Monteiro Perin
- TWINCORE - Institute of Experimental Virology, Centre for Experimental and Clinical Infection Research, Hannover, Germany; German Centre for Infection Research (DZIF), partner site Hannover-Braunschweig, Germany
| | - Florian Wolfgang Rudolf Vondran
- German Centre for Infection Research (DZIF), partner site Hannover-Braunschweig, Germany; ReMediES, Department of General, Visceral and Transplantation Surgery, German Centre for Infection Research Hannover Medical School, Hannover, Germany
| | - Markus Kalesse
- Department of Chemical Biology, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Kirsten Harmrolfs
- Helmholtz Institut für Pharmazeutische Forschung Saarland, Saarbrücken, Germany
| | - Rolf Müller
- Helmholtz Institut für Pharmazeutische Forschung Saarland, Saarbrücken, Germany
| | - Javier P Martinez
- Infection Biology Group, Department of Experimental and Health Sciences, Universitat Pompeu Fabra, Barcelona, Spain
| | - Thomas Pietschmann
- TWINCORE - Institute of Experimental Virology, Centre for Experimental and Clinical Infection Research, Hannover, Germany; German Centre for Infection Research (DZIF), partner site Hannover-Braunschweig, Germany
| | - Ralf Bartenschlager
- Department of Infectious Diseases, Molecular Virology, Heidelberg University, Heidelberg, Germany; German Centre for Infection Research (DZIF), partner site Heidelberg, Germany
| | - Mark Brönstrup
- Department of Chemical Biology, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Andreas Meyerhans
- Infection Biology Group, Department of Experimental and Health Sciences, Universitat Pompeu Fabra, Barcelona, Spain; Institució Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Spain
| | - Juana Díez
- Molecular Virology Group, Department of Experimental and Health Sciences, Universitat Pompeu Fabra, Barcelona, Spain.
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12
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The chemistry of the carbon-transition metal double and triple bond: Annual survey covering the year 2013. Coord Chem Rev 2015. [DOI: 10.1016/j.ccr.2014.09.021] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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13
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Abstract
In this article strategies for the design and synthesis of natural product analogues are summarized and illustrated with some selected examples.
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Affiliation(s)
- Martin E. Maier
- Institut für Organische Chemie
- Eberhard Karls Universität Tübingen
- 72076 Tübingen
- Germany
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Symkenberg G, Kalesse M. Structure Elucidation and Total Synthesis of Kulkenon. Angew Chem Int Ed Engl 2014; 53:1795-8. [DOI: 10.1002/anie.201309386] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2013] [Indexed: 11/11/2022]
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