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Zhao L, Le Chapelain C, Brachmann AO, Kaiser M, Groll M, Bode HB. Activation, Structure, Biosynthesis and Bioactivity of Glidobactin-like Proteasome Inhibitors from Photorhabdus laumondii. Chembiochem 2021; 22:1582-1588. [PMID: 33452852 PMCID: PMC8248439 DOI: 10.1002/cbic.202100014] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Indexed: 12/22/2022]
Abstract
The glidobactin-like natural products (GLNPs) glidobactin A and cepafungin I have been reported to be potent proteasome inhibitors and are regarded as promising candidates for anticancer drug development. Their biosynthetic gene cluster (BGC) plu1881-1877 is present in entomopathogenic Photorhabdus laumondii but silent under standard laboratory conditions. Here we show the largest subset of GLNPs, which are produced and identified after activation of the silent BGC in the native host and following heterologous expression of the BGC in Escherichia coli. Their chemical diversity results from a relaxed substrate specificity and flexible product release in the assembly line of GLNPs. Crystal structure analysis of the yeast proteasome in complex with new GLNPs suggests that the degree of unsaturation and the length of the aliphatic tail are critical for their bioactivity. The results in this study provide the basis to engineer the BGC for the generation of new GLNPs and to optimize these natural products resulting in potential drugs for cancer therapy.
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Affiliation(s)
- Lei Zhao
- Molecular BiotechnologyDepartment of BiosciencesGoethe University Frankfurt60438Frankfurt am MainGermany
- Institute of BotanyJiangsu Province and Chinese Academy of Sciences210014NanjingP. R. China
| | - Camille Le Chapelain
- Center for Integrated Protein Science Munich (CIPSM)Department of ChemistryTechnical University of Munich85748GarchingGermany
| | - Alexander O. Brachmann
- Molecular BiotechnologyDepartment of BiosciencesGoethe University Frankfurt60438Frankfurt am MainGermany
| | - Marcel Kaiser
- Swiss Tropical and Public Health Institute4002BaselSwitzerland
| | - Michael Groll
- Center for Integrated Protein Science Munich (CIPSM)Department of ChemistryTechnical University of Munich85748GarchingGermany
| | - Helge B. Bode
- Molecular BiotechnologyDepartment of BiosciencesGoethe University Frankfurt60438Frankfurt am MainGermany
- Buchmann Institute for Molecular Life Sciences (BMLS)Goethe University Frankfurt60438Frankfurt am MainGermany
- Senckenberg Gesellschaft für Naturforschung60325Frankfurt am MainGermany
- Department of Natural Products in Organismic InteractionsMax-Planck-Institute for Terrestrial Microbiology35043MarburgGermany
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2
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Gholami H, Kulshrestha A, Favor OK, Staples RJ, Borhan B. Total Synthesis of (-)-Salinosporamide A via a Late Stage C-H Insertion. Angew Chem Int Ed Engl 2019; 58:10110-10113. [PMID: 30887693 DOI: 10.1002/anie.201900340] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Indexed: 01/24/2023]
Abstract
The synthesis of (-)-salinosporamide A, a proteasome inhibitor, is described. The synthesis highlights the assembly of a densely decorated pyrrolidinone core via an aza-Payne/hydroamination sequence. Central to the success of the synthesis is a late-stage C-H insertion reaction to functionalize a sterically encumbered secondary carbon. The latter functionalization leads to an enabling transformation where most of the prototypical strategies failed.
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Affiliation(s)
- Hadi Gholami
- Department of Chemistry, Michigan State University, E. Lansing, MI, 48824, USA
| | - Aman Kulshrestha
- Department of Chemistry, Michigan State University, E. Lansing, MI, 48824, USA
| | - Olivia K Favor
- Department of Chemistry, Michigan State University, E. Lansing, MI, 48824, USA
| | - Richard J Staples
- Department of Chemistry, Michigan State University, E. Lansing, MI, 48824, USA
| | - Babak Borhan
- Department of Chemistry, Michigan State University, E. Lansing, MI, 48824, USA
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3
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Servatius P, Stach T, Kazmaier U. Total Synthesis of Luminmycin A, a Cryptic Natural Product from Photorhabdus Luminescens. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900460] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Phil Servatius
- Organic Chemistry; Saarland University; P.O. Box 151150 66041 Saarbrücken Germany
| | - Tanja Stach
- Organic Chemistry; Saarland University; P.O. Box 151150 66041 Saarbrücken Germany
| | - Uli Kazmaier
- Organic Chemistry; Saarland University; P.O. Box 151150 66041 Saarbrücken Germany
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4
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Gholami H, Kulshrestha A, Favor OK, Staples RJ, Borhan B. Total Synthesis of (−)‐Salinosporamide A via a Late Stage C−H Insertion. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201900340] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Hadi Gholami
- Department of ChemistryMichigan State University E. Lansing MI 48824 USA
| | - Aman Kulshrestha
- Department of ChemistryMichigan State University E. Lansing MI 48824 USA
| | - Olivia K. Favor
- Department of ChemistryMichigan State University E. Lansing MI 48824 USA
| | - Richard J. Staples
- Department of ChemistryMichigan State University E. Lansing MI 48824 USA
| | - Babak Borhan
- Department of ChemistryMichigan State University E. Lansing MI 48824 USA
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Abstract
Salinosporamide A is a β-lactone proteasome inhibitor currently in clinical trials for the treatment of multiple-myeloma. Herein we report a short synthesis of this small, highly functionalized, biologically important natural product that uses an oxidative radical cyclization as a key step and allows for the preparation of gram quantities of advanced synthetic intermediates.
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Affiliation(s)
- Léo B Marx
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield Road, Oxford, OX1 3TA, UK
| | - Jonathan W Burton
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield Road, Oxford, OX1 3TA, UK
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6
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de Bruin G, van Rooden EJ, Ward D, Wesseling C, van den Nieuwendijk AMCH, van Boeckel CAA, Driessen C, Kisselev AF, Florea BI, van der Stelt M, Overkleeft HS. Asymmetric Synthesis of Lysine Analogues with Reduced Basicity, and their Incorporation into Proteasome Inhibitors. European J Org Chem 2017. [DOI: 10.1002/ejoc.201701174] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Gerjan de Bruin
- Leiden Institute of Chemistry; Leiden University; Einsteinweg 55 2333 CC Leiden The Netherlands
| | - Eva J. van Rooden
- Leiden Institute of Chemistry; Leiden University; Einsteinweg 55 2333 CC Leiden The Netherlands
| | - David Ward
- Leiden Institute of Chemistry; Leiden University; Einsteinweg 55 2333 CC Leiden The Netherlands
| | - Charlotte Wesseling
- Leiden Institute of Chemistry; Leiden University; Einsteinweg 55 2333 CC Leiden The Netherlands
| | | | | | - Christoph Driessen
- Department of Hematology and Oncology; Kantonsspital St. Gallen; 9007 St. Gallen Switzerland
| | - Alexei F. Kisselev
- Department of Pharmacology and Toxicology; Norris Cotton Cancer Center; Dartmouth Medical School; One Medical Centre Drive NH 03756 Lebanon USA
| | - Bogdan I. Florea
- Leiden Institute of Chemistry; Leiden University; Einsteinweg 55 2333 CC Leiden The Netherlands
| | - Mario van der Stelt
- Leiden Institute of Chemistry; Leiden University; Einsteinweg 55 2333 CC Leiden The Netherlands
| | - Herman S. Overkleeft
- Leiden Institute of Chemistry; Leiden University; Einsteinweg 55 2333 CC Leiden The Netherlands
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Dubiella C, Cui H, Gersch M, Brouwer AJ, Sieber SA, Krüger A, Liskamp RMJ, Groll M. Selective Inhibition of the Immunoproteasome by Ligand-Induced Crosslinking of the Active Site. Angew Chem Int Ed Engl 2014; 53:11969-73. [DOI: 10.1002/anie.201406964] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2014] [Indexed: 12/27/2022]
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Dubiella C, Cui H, Gersch M, Brouwer AJ, Sieber SA, Krüger A, Liskamp RMJ, Groll M. Selektive Inhibition des Immunoproteasoms durch ligandeninduzierte Vernetzung des katalytischen Zentrums. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201406964] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Bian X, Huang F, Wang H, Klefisch T, Müller R, Zhang Y. Heterologous production of glidobactins/luminmycins in Escherichia coli Nissle containing the glidobactin biosynthetic gene cluster from Burkholderia DSM7029. Chembiochem 2014; 15:2221-4. [PMID: 25147087 DOI: 10.1002/cbic.201402199] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2014] [Indexed: 11/09/2022]
Abstract
Natural product peptide-based proteasome inhibitors show great potential as anticancer drugs. Here we have cloned the biosynthetic gene cluster of a potent proteasome inhibitor-glidobactin from Burkholderia DSM7029-and successfully detected glidobactins/luminmycins in E. coli Nissle. We have also improved the yield of glidobactin A tenfold by promoter change in a heterologous host. In addition, two new biosynthetic intermediates were identified by comparative MS/MS fragmentation analysis. Identification of acyclic luminmycin E implies substrate specificity of the TE domain for cyclization. The establishment of a heterologous expression system for syrbactins provided the basis for the generation of new syrbactins as proteasome inhibitors by molecular engineering, but the TE domain's specificity cannot be ignored.
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Affiliation(s)
- Xiaoying Bian
- Department of Microbial Natural Products, Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research (HZI) and Department of Pharmaceutical Biotechnology, Saarland University, Campus C2 3, 66123 Saarbrücken, (Germany); Shandong University-Helmholtz Joint Institute of Biotechnology, State Key Laboratory of Microbial Technology, Shandong University, ShandaNanlu 27, 250100 Jinan, (China)
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Stavber G, Časar Z. CuIIand Cu0Catalyzed Mono Borylation of Unsaturated Hydrocarbons with B2pin2: Entering into the Water. ChemCatChem 2014. [DOI: 10.1002/cctc.201402176] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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11
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Scarbaci K, Troiano V, Ettari R, Pinto A, Micale N, Di Giovanni C, Cerchia C, Schirmeister T, Novellino E, Lavecchia A, Zappalà M, Grasso S. Development of novel selective peptidomimetics containing a boronic acid moiety, targeting the 20S proteasome as anticancer agents. ChemMedChem 2014; 9:1801-16. [PMID: 24891205 DOI: 10.1002/cmdc.201402075] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2014] [Indexed: 11/06/2022]
Abstract
This paper describes the design, synthesis, and biological evaluation of peptidomimetic boronates as inhibitors of the 20S proteasome, a validated target in the treatment of multiple myeloma. The synthesized compounds showed a good inhibitory profile against the ChT-L activity of 20S proteasome. Compounds bearing a β-alanine residue at the P2 position were the most active, that is, 3-ethylphenylamino and 4-methoxyphenylamino (R)-1-{3-[4-(substituted)-2-oxopyridin-1(2H)-yl]propanamido}-3-methylbutylboronic acids (3 c and 3 d, respectively), and these derivatives showed inhibition constants (Ki ) of 17 and 20 nM, respectively. In addition, they co-inhibited post glutamyl peptide hydrolase activity (3 c, Ki=2.57 μM; 3 d, Ki=3.81 μM). No inhibition was recorded against the bovine pancreatic α-chymotrypsin, which thus confirms the selectivity towards the target enzyme. Docking studies of 3 c and related inhibitors into the yeast proteasome revealed the structural basis for specificity. The evaluation of growth inhibitory effects against 60 human tumor cell lines was performed at the US National Cancer Institute. Among the selected compounds, 3 c showed 50% growth inhibition (GI50) values at the sub-micromolar level on all cell lines.
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Affiliation(s)
- Kety Scarbaci
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, Via Mangiagalli, 25, 20133 Milano (Italy)
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12
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Niggemann J, Bozko P, Bruns N, Wodtke A, Gieseler MT, Thomas K, Jahns C, Nimtz M, Reupke I, Brüser T, Auling G, Malek N, Kalesse M. Baceridin, a cyclic hexapeptide from an epiphytic bacillus strain, inhibits the proteasome. Chembiochem 2014; 15:1021-9. [PMID: 24692199 DOI: 10.1002/cbic.201300778] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2013] [Indexed: 11/05/2022]
Abstract
A new cyclic hexapeptide, baceridin (1), was isolated from the culture medium of a plant-associated Bacillus strain. The structure of 1 was elucidated by HR-HPLC-MS and 1D and 2D NMR experiments and confirmed by ESI MS/MS sequence analysis of the corresponding linear hexapeptide 2. The absolute configurations of the amino acid residues were determined after derivatization by GC-MS and Marfey's method. The cyclopeptide 1 consists partially of nonribosomal-derived D- and allo-D-configured amino acids. The order of the D- and L-leucine residues within the sequence cyclo(-L-Trp-D-Ala-D-allo-Ile-L-Val-D-Leu-L-Leu-) was assigned by total synthesis of the two possible stereoisomers. Baceridin (1) was tested for antimicrobial and cytotoxic activity and displayed moderate cytotoxicity (1-2 μg mL(-1)) as well as weak activity against Staphylococcus aureus. However, it was identified to be a proteasome inhibitor that inhibits cell cycle progression and induces apoptosis in tumor cells by a p53-independent pathway.
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Affiliation(s)
- Jutta Niggemann
- Helmholtz Centre for Infection Research (HZI), Inhoffenstrasse 7, 38124 Braunschweig (Germany)
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13
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Buckley DL, Crews CM. Small-molecule control of intracellular protein levels through modulation of the ubiquitin proteasome system. Angew Chem Int Ed Engl 2014; 53:2312-30. [PMID: 24459094 PMCID: PMC4348030 DOI: 10.1002/anie.201307761] [Citation(s) in RCA: 119] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2013] [Indexed: 12/25/2022]
Abstract
Traditionally, biological probes and drugs have targeted the activities of proteins (such as enzymes and receptors) that can be readily controlled by small molecules. The remaining majority of the proteome has been deemed "undruggable". By using small-molecule modulators of the ubiquitin proteasome, protein levels, rather than protein activity, can be targeted instead, thus increasing the number of druggable targets. Whereas targeting of the proteasome itself can lead to a global increase in protein levels, the targeting of other components of the UPS (e.g., the E3 ubiquitin ligases) can lead to an increase in protein levels in a more targeted fashion. Alternatively, multiple strategies for inducing protein degradation with small-molecule probes are emerging. With the ability to induce and inhibit the degradation of targeted proteins, small-molecule modulators of the UPS have the potential to significantly expand the druggable portion of the proteome beyond traditional targets, such as enzymes and receptors.
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Affiliation(s)
- Dennis L. Buckley
- Departments of Chemistry; Molecular, Cellular & Developmental, Biology; Pharmacology, Yale University, New Haven, Connecticut 06511, United States
| | - Craig M. Crews
- Departments of Chemistry; Molecular, Cellular & Developmental, Biology; Pharmacology, Yale University, New Haven, Connecticut 06511, United States
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14
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Buckley DL, Crews CM. Steuerung der intrazellulären Proteinmenge durch niedermolekulare Modulatoren des Ubiquitin-Proteasom-Systems. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201307761] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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15
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Stein ML, Cui H, Beck P, Dubiella C, Voss C, Krüger A, Schmidt B, Groll M. Ein systematischer Vergleich peptidischer Proteasominhibitoren unterstreicht α-Ketoamid als vielversprechende elektrophile Leitstruktur. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201308984] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Stein ML, Cui H, Beck P, Dubiella C, Voss C, Krüger A, Schmidt B, Groll M. Systematic Comparison of Peptidic Proteasome Inhibitors Highlights the α-Ketoamide Electrophile as an Auspicious Reversible Lead Motif. Angew Chem Int Ed Engl 2014; 53:1679-83. [DOI: 10.1002/anie.201308984] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2013] [Indexed: 11/11/2022]
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17
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List A, Zeiler E, Gallastegui N, Rusch M, Hedberg C, Sieber SA, Groll M. Omuralid und Vibralacton: Unterschiede im Proteasom-β-Lacton-γ-Lactamgerüst verändern die Zielmolekülpräferenz. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201308567] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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18
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List A, Zeiler E, Gallastegui N, Rusch M, Hedberg C, Sieber SA, Groll M. Omuralide and vibralactone: differences in the proteasome- β-lactone-γ-lactam binding scaffold alter target preferences. Angew Chem Int Ed Engl 2013; 53:571-4. [PMID: 24285701 DOI: 10.1002/anie.201308567] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2013] [Indexed: 02/05/2023]
Abstract
Despite their structural similarity, the natural products omuralide and vibralactone have different biological targets. While omuralide blocks the chymotryptic activity of the proteasome with an IC50 value of 47 nM, vibralactone does not have any effect at this protease up to a concentration of 1 mM. Activity-based protein profiling in HeLa cells revealed that the major targets of vibralactone are APT1 and APT2.
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Affiliation(s)
- Anja List
- Center for Integrated Protein Science Munich, Department Chemie, Technische Universität München, Lichtenbergstrasse 4, 85747 Garching (Germany)
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Zajdlik A, Wang Z, Hickey JL, Aman A, Schimmer AD, Yudin AK. α-Boryl isocyanides enable facile preparation of bioactive boropeptides. Angew Chem Int Ed Engl 2013; 52:8411-5. [PMID: 23818141 DOI: 10.1002/anie.201302818] [Citation(s) in RCA: 70] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2013] [Revised: 05/24/2013] [Indexed: 12/27/2022]
Affiliation(s)
- Adam Zajdlik
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George St., Toronto, ON M5S3H6, Canada
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Zajdlik A, Wang Z, Hickey JL, Aman A, Schimmer AD, Yudin AK. α-Boryl Isocyanides Enable Facile Preparation of Bioactive Boropeptides. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201302818] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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