1
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Nasiri B, Pasdar G, Zebrowski P, Röser K, Naderer D, Waser M. Towards an asymmetric β-selective addition of azlactones to allenoates. Beilstein J Org Chem 2024; 20:1504-1509. [PMID: 38978748 PMCID: PMC11228823 DOI: 10.3762/bjoc.20.134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2024] [Accepted: 06/24/2024] [Indexed: 07/10/2024] Open
Abstract
We herein report the asymmetric organocatalytic addition of azlactones to allenoates. Upon using chiral quaternary ammonium salt catalysts, i.e., Maruoka's binaphthyl-based spirocyclic ammonium salts, the addition of various azlactones to allenoates proceeds in a β-selective manner with moderate levels of enantioselectivities (up to 83:17 er). Furthermore, the obtained products can be successfully engaged in nucleophilic ring opening reactions, thus giving highly functionalized α-amino acid derivatives.
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Affiliation(s)
- Behzad Nasiri
- Institute of Organic Chemistry, Johannes Kepler University Linz, Altenbergerstrasse 69, 4040 Linz, Austria
- Department of Chemistry, Faculty of Science, University of Kurdistan, 66177-15175 Sanandaj, Kurdistan, Iran
| | - Ghaffar Pasdar
- Institute of Organic Chemistry, Johannes Kepler University Linz, Altenbergerstrasse 69, 4040 Linz, Austria
| | - Paul Zebrowski
- Institute of Organic Chemistry, Johannes Kepler University Linz, Altenbergerstrasse 69, 4040 Linz, Austria
| | - Katharina Röser
- Institute of Organic Chemistry, Johannes Kepler University Linz, Altenbergerstrasse 69, 4040 Linz, Austria
| | - David Naderer
- Institute of Organic Chemistry, Johannes Kepler University Linz, Altenbergerstrasse 69, 4040 Linz, Austria
| | - Mario Waser
- Institute of Organic Chemistry, Johannes Kepler University Linz, Altenbergerstrasse 69, 4040 Linz, Austria
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2
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Zhang Y, Vanderghinste J, Wang J, Das S. Challenges and recent advancements in the synthesis of α,α-disubstituted α-amino acids. Nat Commun 2024; 15:1474. [PMID: 38368416 PMCID: PMC10874380 DOI: 10.1038/s41467-024-45790-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Accepted: 02/01/2024] [Indexed: 02/19/2024] Open
Abstract
α,α-Disubstituted α-amino acids (α-AAs) have improved properties compared to other types of amino acids. They serve as modifiers of peptide conformation and as precursors of bioactive compounds. Therefore, it has been a long-standing goal to construct this highly valuable scaffold efficiently in organic synthesis and drug discovery. However, access to α,α-disubstituted α-AAs is highly challenging and largely unexplored due to their steric constraints. To overcome these, remarkable advances have been made in the last decades. Emerging strategies such as synergistic enantioselective catalysis, visible-light-mediated photocatalysis, metal-free methodologies and CO2 fixation offer new avenues to access the challenging synthesis of α,α-disubstituted α-AAs and continuously bring additional contributions to this field. This review article aims to provide an overview of the recent advancements since 2015 and discuss existing challenges for the synthesis of α,α-disubstituted α-AAs and their derivatives.
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Affiliation(s)
- Yu Zhang
- Shanghai Frontiers Science Center for Chinese Medicine Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, No. 1200, Cailun Road, 201203, Shanghai, China.
- Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, 2020, Antwerpen, Belgium.
| | - Jaro Vanderghinste
- Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, 2020, Antwerpen, Belgium
| | - Jinxin Wang
- Shanghai Frontiers Science Center for Chinese Medicine Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, No. 1200, Cailun Road, 201203, Shanghai, China
| | - Shoubhik Das
- Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, 2020, Antwerpen, Belgium.
- Department of Chemistry, University of Bayreuth, Bayreuth, Germany.
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3
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Núñez-Villanueva D, Plata-Ruiz A, Romero-Muñiz I, Martín-Pérez I, Infantes L, González-Muñiz R, Martín-Martínez M. β-Turn Induction by a Diastereopure Azepane-Derived Quaternary Amino Acid. J Org Chem 2023; 88:14688-14696. [PMID: 37774108 PMCID: PMC10594656 DOI: 10.1021/acs.joc.3c01689] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Indexed: 10/01/2023]
Abstract
β-Turns are one of the most common secondary structures found in proteins. In the interest of developing novel β-turn inducers, a diastereopure azepane-derived quaternary amino acid has been incorporated into a library of simplified tetrapeptide models in order to assess the effect of the azepane position and peptide sequence on the stabilization of β-turns. The conformational analysis of these peptides by molecular modeling, NMR spectroscopy, and X-ray crystallography showed that this azepane amino acid is an effective β-turn inducer when incorporated at the i + 1 position. Moreover, the analysis of the supramolecular self-assembly of one of the β-turn-containing peptide models in the solid state reveals that it forms a supramolecular helical arrangement while maintaining the β-turn structure. The results here presented provide the basis for the use of this azepane quaternary amino acid as a strong β-turn inducer in the search for novel peptide-based bioactive molecules, catalysts, and biomaterials.
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Affiliation(s)
| | - Adrián Plata-Ruiz
- Instituto
de Química Médica (IQM-CSIC), Juan de la Cierva 3, 28006 Madrid, Spain
| | - Ignacio Romero-Muñiz
- Instituto
de Química Médica (IQM-CSIC), Juan de la Cierva 3, 28006 Madrid, Spain
- Universidad
Autónoma de Madrid, Química Orgánica, Francisco Tomás y Valiente,
7, 28049 Madrid, Spain
| | - Ignacio Martín-Pérez
- Instituto
de Química Médica (IQM-CSIC), Juan de la Cierva 3, 28006 Madrid, Spain
| | - Lourdes Infantes
- Instituto
de Química Física Rocasolano (IQFR-CSIC), Serrano 119, 28006 Madrid, Spain
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4
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Stockhammer L, Craik R, Monkowius U, Cordes DB, Smith AD, Waser M. Isothiourea-Catalyzed Enantioselective Functionalisation of Glycine Schiff Base Aryl Esters via 1,6- and 1,4-Additions. CHEMISTRYEUROPE 2023; 1:e202300015. [PMID: 38882579 PMCID: PMC7616101 DOI: 10.1002/ceur.202300015] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Indexed: 06/18/2024]
Abstract
The enantioselective α-functionalisation of glycine Schiff base aryl esters through isothiourea catalysis is successfully demonstrated for 1,6-additions to para-quinone methides (21 examples, up to 95:5 dr and 96:4 er) and 1,4-additions to methylene substituted dicarbonyl or disulfonyl Michael acceptors (17 examples, up to 98:2 er). This nucleophilic organocatalysis approach gives access to a range of α-functionalised α-amino acid derivatives and further transformations of the activated aryl ester group provide a straightforward entry to advanced amino acid-based esters, amides or thioesters.
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Affiliation(s)
- Lotte Stockhammer
- Institute of Organic Chemistry, Johannes Kepler University Linz, Altenbergerstrasse 69, 4040 Linz (Austria)
| | - Rebecca Craik
- EaStCHEM, School of Chemistry, University of St Andrews, KY16 9ST St Andrews, Fife, (UK)
| | - Uwe Monkowius
- School of Education, Chemistry, Johannes Kepler University Linz, Altenbergerstrasse 69, 4040 Linz (Austria)
| | - David B Cordes
- EaStCHEM, School of Chemistry, University of St Andrews, KY16 9ST St Andrews, Fife, (UK)
| | - Andrew D Smith
- EaStCHEM, School of Chemistry, University of St Andrews, KY16 9ST St Andrews, Fife, (UK)
| | - Mario Waser
- Institute of Organic Chemistry, Johannes Kepler University Linz, Altenbergerstrasse 69, 4040 Linz (Austria)
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5
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Zebrowski P, Röser K, Chrenko D, Pospíšil J, Waser M. Enantioselective β-Selective Addition of Isoxazolidin-5-ones to Allenoates Catalyzed by Quaternary Ammonium Salts. SYNTHESIS-STUTTGART 2023; 55:1706-1713. [PMID: 38855403 PMCID: PMC7616069 DOI: 10.1055/a-1948-5493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Abstract
The enantioselective addition of isoxazolidin-5-ones to the β-carbon of allenoates has been carried out by using a novel spirobiindane-based quaternary ammonium salt catalyst. This protocol, which proceeds under classical liquid-solid phase-transfer conditions, gives access to unprecedented highly functionalized β2,2-amino acid derivatives with good enantioselectivities and in high yields, and further manipulations of these products have been carried out as well.
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Affiliation(s)
- Paul Zebrowski
- Institute of Organic Chemistry, Johannes Kepler University Linz, Altenbergerstrasse 69, 4040 Linz, Austria
| | - Katharina Röser
- Institute of Organic Chemistry, Johannes Kepler University Linz, Altenbergerstrasse 69, 4040 Linz, Austria
| | - Daniel Chrenko
- Department of Chemical Biology, Faculty of Science, Palacký University, Šlechtitelů 27, 783 71 Olomouc, Czech Republic
| | - Jiří Pospíšil
- Department of Chemical Biology, Faculty of Science, Palacký University, Šlechtitelů 27, 783 71 Olomouc, Czech Republic
- Laboratory of Growth Regulators, Palacký University & Institute of Experimental Botany AS CR, Šlechtitelů 27, 783 71 Olomouc, Czech Republic
| | - Mario Waser
- Institute of Organic Chemistry, Johannes Kepler University Linz, Altenbergerstrasse 69, 4040 Linz, Austria
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6
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Rothman JH. Synthesis of Endocyclic Cycloalkyne Amino Acids. ACS OMEGA 2022; 7:9053-9060. [PMID: 35309419 PMCID: PMC8928491 DOI: 10.1021/acsomega.2c00270] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Accepted: 02/24/2022] [Indexed: 06/14/2023]
Abstract
"Click-ligation" is a widely adopted and valuable means to ligate biomolecules whereby two appended biologically inert moieties, such as alkynes and azides, link by cycloaddition. For terminal alkynes, Cu+1 catalysis is required which degrades oligonucleotides by catalyzing their hydrolysis but is also physiologically incompatible. The smallest activated alkynes that do not require Cu+1 catalysis are cyclooctynes or dibenzo-cyclooctynes. For this purpose, there are commercially available nucleosides and amino acids that are appended to these moieties. However, these structures are bulky, dissimilar to native amino acids, and when incorporated within biological molecules could likely perturb native structural configuration. Presented are the syntheses of structural analogues of proline with an inserted propargyl moiety within a series of ring sizes. Moreover, a synthetic pathway to medium-size ring heterocycloalkynes mediated by using mild Mitsunobu conditions in tandem with a Nicholas-related strategy for cyclization is introduced. Avoiding the usual harsh acidic conditions for the Nicholas reaction allows improved functional group compatibility.
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Affiliation(s)
- Jeffrey H. Rothman
- Herbert
Irving Comprehensive Cancer Center, Department of Medicine, Columbia University Medical Center, 1130 St. Nicholas Avenue, New York, New York 10032, United States
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7
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Ueda A, Makura Y, Kakazu S, Kato T, Umeno T, Hirayama K, Doi M, Oba M, Tanaka M. E-Selective Ring-Closing Metathesis in α-Helical Stapled Peptides Using Carbocyclic α,α-Disubstituted α-Amino Acids. Org Lett 2022; 24:1049-1054. [PMID: 35073100 DOI: 10.1021/acs.orglett.1c04256] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We present an E-selective ring-closing metathesis reaction in α-helical stapled peptides at positions i and i + 4. The use of two chiral carbocyclic α,α-disubstituted α-amino acids, (1S,3S)-Ac5c3OAll and (1R,3S)-Ac5c3OAll, provides a high E-selectivity of a ≤59:1 E:Z ratio, while mixtures with E:Z ratios of 2.1-0.5:1 were produced with standard acyclic (S)-(4-pentenyl)alanine amino acids. A stapled octapeptide composed of (1S,3S)- and (1R,3S)-Ac5c3OAll amino acids showed a right-handed α-helical crystal structure.
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Affiliation(s)
- Atsushi Ueda
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
| | - Yui Makura
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
| | - Sana Kakazu
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
| | - Takuma Kato
- Faculty of Pharmacy, Osaka Medical and Pharmaceutical University, Osaka 569-1094, Japan
| | - Tomohiro Umeno
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
| | - Kazuhiro Hirayama
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
| | - Mitsunobu Doi
- Faculty of Pharmacy, Osaka Medical and Pharmaceutical University, Osaka 569-1094, Japan
| | - Makoto Oba
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
- Graduate School of Medicine, Kyoto Prefectural University of Medicine, Kyoto 606-0823, Japan
| | - Masakazu Tanaka
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
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8
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Haider V, Zebrowski P, Michalke J, Monkowius U, Waser M. Enantioselective organocatalytic syntheses of α-selenated α- and β-amino acid derivatives. Org Biomol Chem 2022; 20:824-830. [PMID: 35015015 PMCID: PMC8790592 DOI: 10.1039/d1ob02235k] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 01/03/2022] [Indexed: 12/22/2022]
Abstract
Selenium-containing amino acids are valuable targets but methods for the stereoselective α-selenation of simple amino acid precursors are rare. We herein report the enantioselective electrophilic α-selenation of azlactones (masked α-amino acid derivatives) and isoxazolidin-5-ones (masked β-amino acids) using Cinchona alkaloids as easily accessible organocatalysts. A variety of differently substituted derivatives was accessed with reasonable levels of enantioselectivities and further studies concerning the stability and suitability of these compounds for further manipulations have been carried out as well.
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Affiliation(s)
- Victoria Haider
- Institute of Organic Chemistry, Johannes Kepler University Linz, Altenbergerstrasse 69, 4040 Linz, Austria.
| | - Paul Zebrowski
- Institute of Organic Chemistry, Johannes Kepler University Linz, Altenbergerstrasse 69, 4040 Linz, Austria.
| | - Jessica Michalke
- Institute of Catalysis, Johannes Kepler University Linz, Altenbergerstrasse 69, 4040 Linz, Austria
| | - Uwe Monkowius
- School of Education, Chemistry, Johannes Kepler University Linz, Altenbergerstrasse 69, 4040 Linz, Austria
| | - Mario Waser
- Institute of Organic Chemistry, Johannes Kepler University Linz, Altenbergerstrasse 69, 4040 Linz, Austria.
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9
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Olifir OS, Chernykh AV, Dobrydnev AV, Grygorenko OO, Moroz YS, Voitenko ZV, Radchenko DS. Multigram Synthesis of Advanced 6,6-Difluorospiro[3.3]heptane-derived Building Blocks. European J Org Chem 2021; 2021:6541-6550. [PMID: 35095338 PMCID: PMC8791643 DOI: 10.1002/ejoc.202000432] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Indexed: 01/21/2024]
Abstract
A convenient methodology for constructing 6,6-difluorospiro[3.3]heptane scaffold - a conformationally restricted isostere of gem-difluorocycloalkanes - is developed. Alarge array of novel 2-mono- and 2,2-bifunctionalized difluorospiro[3.3]heptane building blocks was obtained through the convergent synthesis strategy using a common synthetic precursor - 1,1-bis(bromomethyl)-3,3-difluorocyclobutane. The target compounds and intermediates were prepared by short reaction sequences (6-10 steps) on multigram scale (up to 0.47 kg).
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Affiliation(s)
- Oleksandr S Olifir
- Enamine Ltd. (www.enamine.net), Chervonotkatska Street 78, Kyiv 02094, Ukraine
- Taras Shevchenko National University of Kyiv, Volodymyrska Street 60, Kyiv 01601, Ukraine
| | - Anton V Chernykh
- Enamine Ltd. (www.enamine.net), Chervonotkatska Street 78, Kyiv 02094, Ukraine
| | - Alexey V Dobrydnev
- Enamine Ltd. (www.enamine.net), Chervonotkatska Street 78, Kyiv 02094, Ukraine
- Taras Shevchenko National University of Kyiv, Volodymyrska Street 60, Kyiv 01601, Ukraine
| | - Oleksandr O Grygorenko
- Enamine Ltd. (www.enamine.net), Chervonotkatska Street 78, Kyiv 02094, Ukraine
- Taras Shevchenko National University of Kyiv, Volodymyrska Street 60, Kyiv 01601, Ukraine
| | - Yuriy S Moroz
- Taras Shevchenko National University of Kyiv, Volodymyrska Street 60, Kyiv 01601, Ukraine
- Chemspace, Ilukstes iela 38-5, Riga, LV-1082, Latvia
| | - Zoia V Voitenko
- Taras Shevchenko National University of Kyiv, Volodymyrska Street 60, Kyiv 01601, Ukraine
| | - Dmytro S Radchenko
- Enamine Ltd. (www.enamine.net), Chervonotkatska Street 78, Kyiv 02094, Ukraine
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10
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Li K, Lu Y. Phosphine-catalyzed γ-addition of nitroacetates to allenoates for enantioselective creation of α,α-disubstituted α-amino acid precursors. Org Chem Front 2021. [DOI: 10.1039/d1qo01016f] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Enantioselective γ-addition of readily available α-substituted nitroacetates to allenoates has been achieved.
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Affiliation(s)
- Kaizhi Li
- Biophamaceutical Research Institute, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Yixin Lu
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou, Fujian, 350207, China
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11
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Brown CJ, Verma CS, Lane DP, Lama D. Conformational ordering of intrinsically disordered peptides for targeting translation initiation. Biochim Biophys Acta Gen Subj 2020; 1865:129775. [PMID: 33122085 DOI: 10.1016/j.bbagen.2020.129775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 10/14/2020] [Accepted: 10/22/2020] [Indexed: 10/23/2022]
Abstract
BACKGROUND Intrinsically disordered regions (IDRs) in proteins can regulate their activity by facilitating protein-protein interactions (PPIs) as exemplified in the recruitment of the eukaryotic translation initiation factor 4E (eIF4E) protein by the protein eIF4G. Deregulation of this PPI module is central to a broad spectrum of cancer related malignancies and its targeted inhibition through bioactive peptides is a promising strategy for therapeutic intervention. METHODS We employed molecular dynamics simulations coupled with biophysical assays to rationally develop peptide derivatives from the intrinsically disordered eIF4G scaffold by incorporating non-natural amino acids that facilitates disorder-to-order transition. RESULTS The conformational heterogeneity of these peptides and the degree of structural reorganization required to adopt the optimum mode of interaction with eIF4E underscores their differential binding affinities. The presence of a pre-structured local helical element in the ensemble of structures was instrumental in the efficient docking of the peptides on to the protein surface. The formation of Y4: P38 hydrogen-bond interaction between the peptide and eIF4E is a rate limiting event in the efficient recognition of the protein since it occurs through the disordered region of the peptide. CONCLUSIONS These insights were exploited to further design features into the peptide to propagate bound-state conformations in solution which resulted in the generation of a potent eIF4E binder. GENERAL SIGNIFICANCE The study illustrates the molecular basis of eIF4E recognition by a disordered epitope from eIF4G and its modulation to generate peptides that can potentially attenuate translation initiation in oncology.
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Affiliation(s)
- Christopher J Brown
- p53 Laboratory, A*STAR (Agency for Science, Technology and Research), 8A Biomedical Grove, #06-04/05, Neuros/Immunos, 138648, Singapore.
| | - Chandra S Verma
- Bioinformatics Institute, A*STAR (Agency for Science, Technology and Research), 30 Biopolis Street, #07-01 Matrix, 138671, Singapore; Department of Biological Sciences, National University of Singapore, 14 Science Drive 4, 117543, Singapore; School of Biological Sciences, Nanyang Technological University, 50 Nanyang Drive, 637551, Singapore
| | - David P Lane
- p53 Laboratory, A*STAR (Agency for Science, Technology and Research), 8A Biomedical Grove, #06-04/05, Neuros/Immunos, 138648, Singapore; Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Biomedicum Quarter 7B-C Solnavägen 9, 17165 Solna, Sweden
| | - Dilraj Lama
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Biomedicum Quarter 7B-C Solnavägen 9, 17165 Solna, Sweden.
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12
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Sakakura A, Nakao R, Fujii Y, Hayakawa I, Mizoguchi H. Kinetic Resolution of α-Nitrolactones by Catalytic Asymmetric Hydrolysis or Ester–Amide Exchange Reaction. Synlett 2020. [DOI: 10.1055/s-0040-1707303] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Abstract
C
1-Symmetric chiral ammonium salt catalysts induced a kinetic resolution of racemic α-nitrolactones through an asymmetric ester–amide exchange reaction. The corresponding amides were obtained with high enantioselectivities and high S (= k
fast/k
slow) values. This reaction system is a useful approach for obtaining carbocyclic quaternary α-nitroamides as chiral building blocks.
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Affiliation(s)
- Akira Sakakura
- Graduate School of Natural Science and Technology, Okayama University
| | - Ryota Nakao
- Graduate School of Natural Science and Technology, Okayama University
| | - Yudai Fujii
- Graduate School of Natural Science and Technology, Okayama University
| | - Ichiro Hayakawa
- Graduate School of Integrated Basic Sciences, Nihon University
| | - Haruki Mizoguchi
- Graduate School of Natural Science and Technology, Okayama University
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13
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Sakakura A, Fujii Y, Nakao R, Sugihara S, Fujita K, Araki Y, Kudoh T, Hayakawa I, Mizoguchi H. Enantioselective Diels–Alder Reaction of 3-Nitrocoumarins Promoted by Chiral Organoammonium Salt Catalysts. Synlett 2020. [DOI: 10.1055/s-0040-1707302] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
AbstractAn enantioselective Diels–Alder reaction of 3-nitrocoumarins has been developed. A tryptophan-derived C
1-symmetric organoammonium thiourea catalyst promoted the reaction of 3-nitrocoumarins with Danishefsky’s diene to give the corresponding adducts with good enantioselectivity (up to 94% ee). One of the resulting adducts was converted into a chiral carbocyclic quaternary β-amino alcohol.
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Affiliation(s)
- Akira Sakakura
- Graduate School of Natural Science and Technology, Okayama University
| | - Yudai Fujii
- Graduate School of Natural Science and Technology, Okayama University
| | - Ryota Nakao
- Graduate School of Natural Science and Technology, Okayama University
| | - Saki Sugihara
- Graduate School of Natural Science and Technology, Okayama University
| | - Keita Fujita
- Graduate School of Natural Science and Technology, Okayama University
| | - Yuya Araki
- Graduate School of Natural Science and Technology, Okayama University
| | - Takayuki Kudoh
- Graduate School of Natural Science and Technology, Okayama University
| | - Ichiro Hayakawa
- Graduate School of Integrated Basic Sciences, Nihon University
| | - Haruki Mizoguchi
- Graduate School of Natural Science and Technology, Okayama University
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14
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Ueda A, Ikeda M, Kasae T, Doi M, Demizu Y, Oba M, Tanaka M. Synthesis of Chiral α‐Trifluoromethyl α,α‐Disubstituted α‐Amino Acids and Conformational Analysis of L‐Leu‐Based Peptides with (
R
)‐ or (
S
)‐α‐Trifluoromethylalanine. ChemistrySelect 2020. [DOI: 10.1002/slct.202002888] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Atsushi Ueda
- Graduate School of Biomedical Sciences Nagasaki University Nagasaki 852-8521 Japan
| | - Misuzu Ikeda
- Graduate School of Biomedical Sciences Nagasaki University Nagasaki 852-8521 Japan
| | - Takuya Kasae
- Graduate School of Biomedical Sciences Nagasaki University Nagasaki 852-8521 Japan
| | - Mitsunobu Doi
- Osaka University of Pharmaceutical Sciences Osaka 569-1094 Japan
| | - Yosuke Demizu
- Division of Organic Chemistry National Institute of Health Sciences Kawasaki 210 9501 Japan
| | - Makoto Oba
- Kyoto Prefectural University of Medicine Kyoto 606-0823 Japan
| | - Masakazu Tanaka
- Graduate School of Biomedical Sciences Nagasaki University Nagasaki 852-8521 Japan
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15
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Yamamoto K, Tsuda Y, Kuriyama M, Demizu Y, Onomura O. Copper-Catalyzed Enantioselective Synthesis of Oxazolines from Aminotriols via Asymmetric Desymmetrization. Chem Asian J 2020; 15:840-844. [PMID: 32030893 DOI: 10.1002/asia.201901742] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Revised: 01/28/2020] [Indexed: 11/06/2022]
Abstract
A copper-catalyzed enantioselective transformation of tris(hydroxymethyl)aminomethane-derived aminotriols was developed to provide multisubstituted oxazolines with a tetrasubstituted carbon center. The present transformation consisted of sequential reactions involving mono-sulfonylation of aminotriols, subsequent intramolecular cyclization to afford prochiral oxazoline diols, and sulfonylative asymmetric desymmetrization of resultant oxazoline diols. In addition, the kinetic resolution process would be involved in the sulfonylative asymmetric desymmetrization step, which would amplify the enantiopurities of the desired products. Various aminotriols were tolerated in the present reaction, affording the desired oxazolines in good to high yields with excellent enantioselectivities. The synthetic utility of the present reaction was demonstrated by the transformation of the optically active oxazoline into a chiral α-tertiary amine motif.
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Affiliation(s)
- Kosuke Yamamoto
- Graduate School of Biomedical Sciences, Nagasaki University 1-14 Bunkyo-machi, Nagasaki, 852-8521, Japan
| | - Yutaro Tsuda
- Graduate School of Biomedical Sciences, Nagasaki University 1-14 Bunkyo-machi, Nagasaki, 852-8521, Japan
| | - Masami Kuriyama
- Graduate School of Biomedical Sciences, Nagasaki University 1-14 Bunkyo-machi, Nagasaki, 852-8521, Japan
| | - Yosuke Demizu
- Graduate School of Biomedical Sciences, Nagasaki University 1-14 Bunkyo-machi, Nagasaki, 852-8521, Japan
| | - Osamu Onomura
- Graduate School of Biomedical Sciences, Nagasaki University 1-14 Bunkyo-machi, Nagasaki, 852-8521, Japan
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16
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Kuwano S, Nishida Y, Suzuki T, Arai T. Catalytic Asymmetric Mannich‐Type Reaction of Malononitrile with N‐Boc α‐Ketiminoesters Using Chiral Organic Base Catalyst with Halogen Bond Donor Functionality. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000092] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Satoru Kuwano
- Soft Molecular Activation Research Center (SMARC), Chiba Iodine Resource Innovation Center (CIRIC), Molecular Chirality Research Center (MCRC), Department of Chemistry, Graduate School of ScienceChiba University 1-33 Yayoi, Inage Chiba 263-8522 Japan
| | - Yuki Nishida
- Soft Molecular Activation Research Center (SMARC), Chiba Iodine Resource Innovation Center (CIRIC), Molecular Chirality Research Center (MCRC), Department of Chemistry, Graduate School of ScienceChiba University 1-33 Yayoi, Inage Chiba 263-8522 Japan
| | - Takumi Suzuki
- Soft Molecular Activation Research Center (SMARC), Chiba Iodine Resource Innovation Center (CIRIC), Molecular Chirality Research Center (MCRC), Department of Chemistry, Graduate School of ScienceChiba University 1-33 Yayoi, Inage Chiba 263-8522 Japan
| | - Takayoshi Arai
- Soft Molecular Activation Research Center (SMARC), Chiba Iodine Resource Innovation Center (CIRIC), Molecular Chirality Research Center (MCRC), Department of Chemistry, Graduate School of ScienceChiba University 1-33 Yayoi, Inage Chiba 263-8522 Japan
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17
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Narczyk A, Stecko S. The synthesis of unnatural α-alkyl- and α-aryl-substituted serine derivatives. Org Biomol Chem 2020; 18:1204-1213. [PMID: 31995087 DOI: 10.1039/c9ob02472g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis of α-aryl- and α-alkyl-substituted serine derivatives via [3,3]-sigmatropic rearrangement of allyl carbamates as a key step is reported. Allyl carbamates were obtained from the corresponding allyl alcohols. The former were prepared through three approaches. Aryl-substituted ones were synthesized via the Stille coupling reaction of aryl iodides with enantiomerically enriched vinyl stannanes. Conversely, alkyl-substituted allyl alcohols were prepared by an analogous strategy involving the Negishi coupling reaction of enantiomerically enriched vinyl iodides or by enzymatic kineric resolution of the corresponding racemic alcohols.
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Affiliation(s)
- Aleksandra Narczyk
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland.
| | - Sebastian Stecko
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland.
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18
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Liu TL, Li ZF, Tao J, Li QH, Li WF, Li Q, Ren LQ, Peng YG. Cyano-borrowing: titanium-catalyzed direct amination of cyanohydrins with amines and enantioselective examples. Chem Commun (Camb) 2020; 56:651-654. [PMID: 31840151 DOI: 10.1039/c9cc08576a] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The direct amination of cyanohydrins with amines via a catalytic cyano-borrowing reaction was developed. The transformation features broad substrate scope, excellent functional group compatibility, and very mild and simple operations. Moreover, a titanium catalyst supported by quinine and (S)-BINOL ligands enabled an asymmetric cyano-borrowing reaction with moderate to high enantioselectivity.
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Affiliation(s)
- Tang-Lin Liu
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China.
| | - Zhao-Feng Li
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China.
| | - Jing Tao
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China.
| | - Qing-Hua Li
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China.
| | - Wan-Fang Li
- College of Science, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Qian Li
- College of Science, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Li-Qing Ren
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China.
| | - Yun-Gui Peng
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China.
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19
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Mkrtchyan AF, Hayriyan LA, Karapetyan AJ, Tovmasyan AS, Tsaturyan AH, Khrustalev VN, Maleev VI, Saghyan AS. Using the Ni-[(benzylprolyl)amino]benzophenone complex in the Glaser reaction for the synthesis of bis α-amino acids. NEW J CHEM 2020. [DOI: 10.1039/d0nj02072a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Enantiomerically enriched (S)-α-amino acids were obtained. As the initial complex, the Schiff base Ni(ii) complexes were used. The target Ni(ii) complexes were disassembled and the amino acids were isolated with excellent enantioselectivities.
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Affiliation(s)
- Anna F. Mkrtchyan
- Institute of Pharmacy
- Yerevan State University
- 0025 Yerevan
- Armenia
- Scientific and Production Center “Armbiotechnology” of NAS RA
| | - Liana A. Hayriyan
- Scientific and Production Center “Armbiotechnology” of NAS RA
- 0056 Yerevan
- Armenia
| | - Ani J. Karapetyan
- Institute of Pharmacy
- Yerevan State University
- 0025 Yerevan
- Armenia
- Scientific and Production Center “Armbiotechnology” of NAS RA
| | - Anna S. Tovmasyan
- Institute of Pharmacy
- Yerevan State University
- 0025 Yerevan
- Armenia
- Scientific and Production Center “Armbiotechnology” of NAS RA
| | - Avetis H. Tsaturyan
- Institute of Pharmacy
- Yerevan State University
- 0025 Yerevan
- Armenia
- Scientific and Production Center “Armbiotechnology” of NAS RA
| | - Victor N. Khrustalev
- Peoples’ Friendship University of Russia (RUDN University)
- 117198 Moscow
- Russian Federation
- N.D. Zelinsky Institute of Organic Chemistry
- Russian Academy of Sciences
| | - Viktor I. Maleev
- A.N. Nesmeyanov Institute of Organoelement Compounds
- Russian Academy of Sciences
- 119991 Moscow
- Russian Federation
| | - Ashot S. Saghyan
- Institute of Pharmacy
- Yerevan State University
- 0025 Yerevan
- Armenia
- Scientific and Production Center “Armbiotechnology” of NAS RA
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20
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Cativiela C, Ordóñez M, Viveros-Ceballos JL. Stereoselective synthesis of acyclic α,α-disubstituted α-amino acids derivatives from amino acids templates. Tetrahedron 2020. [DOI: 10.1016/j.tet.2019.130875] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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21
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Wang J, Dai Z, Xiong C, Zhu J, Lu J, Zhou Q. Palladium‐Catalyzed Allylic Alkylation of Aldimine Esters with Vinyl‐Cyclopropanes to Yield α,α‐Disubstituted α‐Amino Acid Derivatives. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201901031] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Jiahua Wang
- State Key Laboratory of Natural Medicines, Department of ChemistryChina Pharmaceutical University Nanjing 211198 People's Republic of China
| | - Zonghao Dai
- State Key Laboratory of Natural Medicines, Department of ChemistryChina Pharmaceutical University Nanjing 211198 People's Republic of China
| | - Cheng Xiong
- State Key Laboratory of Natural Medicines, Department of ChemistryChina Pharmaceutical University Nanjing 211198 People's Republic of China
| | - Jin Zhu
- State Key Laboratory of Natural Medicines, Department of ChemistryChina Pharmaceutical University Nanjing 211198 People's Republic of China
| | - Jinrong Lu
- State Key Laboratory of Natural Medicines, Department of ChemistryChina Pharmaceutical University Nanjing 211198 People's Republic of China
| | - Qingfa Zhou
- State Key Laboratory of Natural Medicines, Department of ChemistryChina Pharmaceutical University Nanjing 211198 People's Republic of China
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22
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Watson ME, Jamieson C, Kennedy AR, Mason AM. A reappraisal of the Ni-[(Benzylprolyl)amino]benzophenone complex in the synthesis of α,α-disubstituted amino acid derivatives. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.130485] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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23
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Amer MM, Abas H, Leonard DJ, Ward JW, Clayden J. Amino Acid-Derived trans-N-Chloroformylimidazolidinones: Scalable, Stereoselective Synthesis, Structure, and Utility. J Org Chem 2019; 84:7199-7206. [DOI: 10.1021/acs.joc.9b00727] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mostafa Mahmoud Amer
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, U.K
| | - Hossay Abas
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, U.K
| | - Daniel J. Leonard
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, U.K
| | - John W. Ward
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, U.K
| | - Jonathan Clayden
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, U.K
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24
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Nimmagadda SK, Liu M, Karunananda MK, Gao DW, Apolinar O, Chen JS, Liu P, Engle KM. Catalytic, Enantioselective α-Alkylation of Azlactones with Nonconjugated Alkenes by Directed Nucleopalladation. Angew Chem Int Ed Engl 2019; 58:3923-3927. [PMID: 30729619 PMCID: PMC6595491 DOI: 10.1002/anie.201814272] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Indexed: 01/03/2023]
Abstract
A palladium(II)-catalyzed enantioselective α-alkylation of azlactones with nonconjugated alkenes is described. The reaction employs a chiral BINOL-derived phosphoric acid as the source of stereoinduction, and a cleavable bidentate directing group appended to the alkene to control the regioselectivity and stabilize the nucleopalladated alkylpalladium(II) intermediate in the catalytic cycle. A wide range of azlactones were found to be compatible under the optimal reaction conditions to afford products bearing α,α-disubstituted α-amino-acid derivatives with high yields and high enantioselectivity.
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Affiliation(s)
- Sri Krishna Nimmagadda
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Road, BCC-169, La Jolla, CA, 92037, USA
| | - Mingyu Liu
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Road, BCC-169, La Jolla, CA, 92037, USA
| | - Malkanthi K Karunananda
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Road, BCC-169, La Jolla, CA, 92037, USA
| | - De-Wei Gao
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Road, BCC-169, La Jolla, CA, 92037, USA
| | - Omar Apolinar
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Road, BCC-169, La Jolla, CA, 92037, USA
| | - Jason S Chen
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Road, BCC-169, La Jolla, CA, 92037, USA
| | - Peng Liu
- Department of Chemistry, University of Pittsburgh, 219 Parkman Avenue, Pittsburgh, PA, 15260, USA
| | - Keary M Engle
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Road, BCC-169, La Jolla, CA, 92037, USA
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25
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Nimmagadda SK, Liu M, Karunananda MK, Gao D, Apolinar O, Chen JS, Liu P, Engle KM. Catalytic, Enantioselective α‐Alkylation of Azlactones with Nonconjugated Alkenes by Directed Nucleopalladation. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201814272] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Sri Krishna Nimmagadda
- Department of ChemistryThe Scripps Research Institute 10550 N. Torrey Pines Road, BCC-169 La Jolla CA 92037 USA
| | - Mingyu Liu
- Department of ChemistryThe Scripps Research Institute 10550 N. Torrey Pines Road, BCC-169 La Jolla CA 92037 USA
| | - Malkanthi K. Karunananda
- Department of ChemistryThe Scripps Research Institute 10550 N. Torrey Pines Road, BCC-169 La Jolla CA 92037 USA
| | - De‐Wei Gao
- Department of ChemistryThe Scripps Research Institute 10550 N. Torrey Pines Road, BCC-169 La Jolla CA 92037 USA
| | - Omar Apolinar
- Department of ChemistryThe Scripps Research Institute 10550 N. Torrey Pines Road, BCC-169 La Jolla CA 92037 USA
| | - Jason S. Chen
- Department of ChemistryThe Scripps Research Institute 10550 N. Torrey Pines Road, BCC-169 La Jolla CA 92037 USA
| | - Peng Liu
- Department of ChemistryUniversity of Pittsburgh 219 Parkman Avenue Pittsburgh PA 15260 USA
| | - Keary M. Engle
- Department of ChemistryThe Scripps Research Institute 10550 N. Torrey Pines Road, BCC-169 La Jolla CA 92037 USA
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26
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Jiménez-Andreu MM, Bueno-Morón J, Sayago FJ, Cativiela C, Tejero T, Merino P. 1-Aminovinylphosphonate Esters as Substrates for the Diels-Alder Reaction: First Synthetic and Theoretical Study. European J Org Chem 2019. [DOI: 10.1002/ejoc.201801633] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- M. Mercedes Jiménez-Andreu
- Departamento de Química Orgánica; Instituto de Síntesis Química y Catálisis Homogénea (ISQCH); CSIC-Universidad de Zaragoza; 50009 Zaragoza Spain
| | - Jorge Bueno-Morón
- Departamento de Química Orgánica; Instituto de Síntesis Química y Catálisis Homogénea (ISQCH); CSIC-Universidad de Zaragoza; 50009 Zaragoza Spain
| | - Francisco J. Sayago
- Departamento de Química Orgánica; Instituto de Síntesis Química y Catálisis Homogénea (ISQCH); CSIC-Universidad de Zaragoza; 50009 Zaragoza Spain
| | - Carlos Cativiela
- Departamento de Química Orgánica; Instituto de Síntesis Química y Catálisis Homogénea (ISQCH); CSIC-Universidad de Zaragoza; 50009 Zaragoza Spain
| | - Tomás Tejero
- Departamento de Química Orgánica; Instituto de Síntesis Química y Catálisis Homogénea (ISQCH); CSIC-Universidad de Zaragoza; 50009 Zaragoza Spain
| | - Pedro Merino
- Instituto de Biocomputación y Física de Sistemas Complejos (BIFI); Universidad de Zaragoza; 50009 Zaragoza Spain
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27
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Yeung K, Talbot FJT, Howell GP, Pulis AP, Procter DJ. Copper-Catalyzed Borylative Multicomponent Synthesis of Quaternary α-Amino Esters. ACS Catal 2019. [DOI: 10.1021/acscatal.8b04563] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Kay Yeung
- School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
| | - Fabien J. T. Talbot
- School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
| | - Gareth P. Howell
- Pharmaceutical Technology and Development, AstraZeneca, Silk Road Business Park, Macclesfield SK10 2NA, United Kingdom
| | - Alexander P. Pulis
- School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
| | - David J. Procter
- School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
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28
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Shimizu M, Mushika M, Mizota I, Zhu Y. Double nucleophilic addition to iminomalonate, leading to the synthesis of quaternary α-amino diesters and desymmetrization of the products. RSC Adv 2019; 9:23400-23407. [PMID: 35514493 PMCID: PMC9067299 DOI: 10.1039/c9ra04889h] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Accepted: 07/22/2019] [Indexed: 01/24/2023] Open
Abstract
Alkylation of iminomalonate with Grignard reagents followed by oxidation and allylation gave symmetrical quaternary α-amino diesters in good yields. Subsequent desymmetrization of a diol derivative from these products was conducted via asymmetric carbamylation catalyzed by Cu-Bnbox to give chiral quaternary aminodiol mono-carbamates. Alkylation of iminomalonate with Grignard reagents followed by oxidation and allylation gave symmetrical quaternary α-amino diesters. Subsequent desymmetrization of a diol derivative from these products was conducted via asymmetric carbamylation catalyzed by Cu-Bnbox.![]()
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Affiliation(s)
- Makoto Shimizu
- School of Energy Science and Engineering
- Nanjing Tech University
- Nanjing 211816
- China
- Department of Chemistry for Materials
| | - Miki Mushika
- Department of Chemistry for Materials
- Graduate School of Engineering
- Mie University
- Tsu
- Japan
| | - Isao Mizota
- Department of Chemistry for Materials
- Graduate School of Engineering
- Mie University
- Tsu
- Japan
| | - Yusong Zhu
- School of Energy Science and Engineering
- Nanjing Tech University
- Nanjing 211816
- China
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29
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Ouchakour L, Ábrahámi RA, Forró E, Haukka M, Fülöp F, Kiss L. Stereocontrolled Synthesis of Fluorine-Containing Piperidine γ-Amino Acid Derivatives. European J Org Chem 2018. [DOI: 10.1002/ejoc.201801540] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Lamiaa Ouchakour
- Institute of Pharmaceutical Chemistry; University of Szeged; Szeged, Eötvös u. Hungary
- Interdisciplinary Excellence Centre; Institute of Pharmaceutical Chemistry; University of Szeged; Szeged Hungary
| | - Renáta A. Ábrahámi
- Institute of Pharmaceutical Chemistry; University of Szeged; Szeged, Eötvös u. Hungary
| | - Enikő Forró
- Institute of Pharmaceutical Chemistry; University of Szeged; Szeged, Eötvös u. Hungary
| | - Matti Haukka
- Department of Chemistry; Institute of Pharmaceutical Chemistry; University of Jyväskylä; Finland
| | - Ferenc Fülöp
- Institute of Pharmaceutical Chemistry; University of Szeged; Szeged, Eötvös u. Hungary
- MTA-SZTE Stereochemistry Research Group; Hungarian Academy of Sciences; Szeged, Eötvös u. 6 Hungary
- Interdisciplinary Excellence Centre; Institute of Pharmaceutical Chemistry; University of Szeged; Szeged Hungary
| | - Loránd Kiss
- Institute of Pharmaceutical Chemistry; University of Szeged; Szeged, Eötvös u. Hungary
- Interdisciplinary Excellence Centre; Institute of Pharmaceutical Chemistry; University of Szeged; Szeged Hungary
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30
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Synthesis of azabicyclo[n.1.0]alkane-derived bifunctional building blocks via the Corey–Chaykovsky cyclopropanation. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.11.047] [Citation(s) in RCA: 6] [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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31
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Koba Y, Ueda A, Oba M, Doi M, Kato T, Demizu Y, Tanaka M. Left-Handed Helix of Three-Membered Ring Amino Acid Homopeptide Interrupted by an N-H···Ethereal O-Type Hydrogen Bond. Org Lett 2018; 20:7830-7834. [PMID: 30499676 DOI: 10.1021/acs.orglett.8b03331] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
A chiral three-membered ring Cα,α-disubstituted α-amino acid ( R, R)-Ac3cdMOM, in which the α-carbon is not a chiral center, but two side chain β-carbons are chiral centers, was synthesized from dimethyl l-(+)-tartrate, and its homopeptides were prepared. X-ray crystallographic analysis of ( R, R)-Ac3cdMOM pentapeptide showed bent left-handed ( M) 310-helical structures with an unusual intramolecular hydrogen bond of the N-H···O (ethereal) type. The left-handedness of the bent helices was exclusively controlled by the side-chain β-carbon chiral centers.
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Affiliation(s)
- Yurie Koba
- Graduate School of Biomedical Sciences , Nagasaki University , 1-14 Bukyo-machi , Nagasaki 852-8521 , Japan
| | - Atsushi Ueda
- Graduate School of Biomedical Sciences , Nagasaki University , 1-14 Bukyo-machi , Nagasaki 852-8521 , Japan
| | - Makoto Oba
- Graduate School of Biomedical Sciences , Nagasaki University , 1-14 Bukyo-machi , Nagasaki 852-8521 , Japan
| | - Mitsunobu Doi
- Osaka University of Pharmaceutical Sciences , Osaka 569-1094 , Japan
| | - Takuma Kato
- Osaka University of Pharmaceutical Sciences , Osaka 569-1094 , Japan
| | - Yosuke Demizu
- Division of Organic Chemistry , National Institute of Health Sciences , Kawasaki 210-9501 , Japan
| | - Masakazu Tanaka
- Graduate School of Biomedical Sciences , Nagasaki University , 1-14 Bukyo-machi , Nagasaki 852-8521 , Japan
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32
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Gracia-Vitoria J, Osante I, Cativiela C, Merino P, Tejero T. Synthesis of Enantiopure Constrained α,β-Cycloaliphatic Cystines via Diels-Alder Reaction with Homochiral Thiazolines. J Org Chem 2018; 83:12471-12485. [PMID: 30176729 DOI: 10.1021/acs.joc.8b01698] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The behavior of homochiral 2,3-dihydrothiazoles, easily available from l-cysteine in Diels-Alder reaction with different dienes, "en route" to sterically constrained modified cystines, has been studied. The oxidation level of the sulfur atom of the heterocyclic ring was crucial for the course of the reaction. Whereas 2,3-dihydrothiazoles did not lead to Diels-Alder adducts, 1-oxide and 1,1-dioxide derivatives afforded the exo adduct enantiopurely in high yields and diastereoselectivities. Further elaboration of the resulting adducts provided conformationally restricted quaternary cystines. DFT calculations correctly predict both the reactivity and stereoselectivity observed experimentally.
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Affiliation(s)
- Jaime Gracia-Vitoria
- Departamento de Química Orgánica , Instituto de Síntesis Química y Catálisis Homogénea ISQCH, CSIC-Universidad de Zaragoza , Zaragoza 50009 , Spain
| | - Iñaki Osante
- Departamento de Química Orgánica , Instituto de Síntesis Química y Catálisis Homogénea ISQCH, CSIC-Universidad de Zaragoza , Zaragoza 50009 , Spain
| | - Carlos Cativiela
- Departamento de Química Orgánica , Instituto de Síntesis Química y Catálisis Homogénea ISQCH, CSIC-Universidad de Zaragoza , Zaragoza 50009 , Spain
| | - Pedro Merino
- Instituto de Biocomputacion y Física de Sistemas Complejos (BIFI), Universidad de Zaragoza , Zaragoza 50009 , Spain
| | - Tomás Tejero
- Departamento de Química Orgánica , Instituto de Síntesis Química y Catálisis Homogénea ISQCH, CSIC-Universidad de Zaragoza , Zaragoza 50009 , Spain
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33
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Melnykov KP, Volochnyuk DM, Ryabukhin SV, Rusanov EB, Grygorenko OO. A conformationally restricted GABA analogue based on octahydro-1H-cyclopenta[b]pyridine scaffold. Amino Acids 2018; 51:255-261. [DOI: 10.1007/s00726-018-2660-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Accepted: 09/29/2018] [Indexed: 01/04/2023]
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34
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Synthesis of cis- and trans-(±)-3-mercaptoproline and pipecolic acid derivatives via thio-Michael addition. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.03.057] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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35
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Frankowski S, Gajda T, Albrecht Ł. Isothiocyanate Strategy for the Synthesis of Quaternary α-Amino Acids Bearing a Spirocyclic Ring System. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201701642] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Sebastian Frankowski
- Institute of Organic Chemistry; Department of Chemistry; Lodz University of Technology; Zeromskiego 116, 90-924 Łódź Poland
| | - Tadeusz Gajda
- Institute of Organic Chemistry; Department of Chemistry; Lodz University of Technology; Zeromskiego 116, 90-924 Łódź Poland
| | - Łukasz Albrecht
- Institute of Organic Chemistry; Department of Chemistry; Lodz University of Technology; Zeromskiego 116, 90-924 Łódź Poland
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36
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Gracia-Vitoria J, Osante I, Cativiela C, Merino P, Tejero T. Self-Regeneration of Chirality with l-Cysteine through 1,3-Dipolar Cycloadditions between Diazoalkanes and Enantiomerically Pure Thiazolines: Experimental and Computational Studies. J Org Chem 2018. [DOI: 10.1021/acs.joc.8b00312] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- J. Gracia-Vitoria
- Departamento de Química Orgánica, Instituto de Síntesis Química y Catálisis Homogénea-ISQCH, CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain
| | - I. Osante
- Departamento de Química Orgánica, Instituto de Síntesis Química y Catálisis Homogénea-ISQCH, CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain
| | - C. Cativiela
- Departamento de Química Orgánica, Instituto de Síntesis Química y Catálisis Homogénea-ISQCH, CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain
| | - P. Merino
- Instituto de Biocomputación y Física de Sistemas Complejos (BIFI), Universidad de Zaragoza, Zaragoza 50009, Spain
| | - T. Tejero
- Departamento de Química Orgánica, Instituto de Síntesis Química y Catálisis Homogénea-ISQCH, CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain
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37
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Grygorenko OO, Biitseva AV, Zhersh S. Amino sulfonic acids, peptidosulfonamides and other related compounds. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.01.033] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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38
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Narczyk A, Pieczykolan M, Stecko S. The synthesis of non-racemic β-alkyl-β-aryl-disubstituted allyl alcohols and their transformation into allylamines and amino acids bearing a quaternary stereocenter. Org Biomol Chem 2018; 16:3921-3946. [PMID: 29745946 DOI: 10.1039/c8ob00731d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two approaches to chiral β-alkyl-β-aryl allyl alcohols and their transformation into non-racemic allylamines and amino acid derivatives bearing a quaternary stereocenter are described.
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Affiliation(s)
- Aleksandra Narczyk
- Institute of Organic Chemistry
- Polish Academy of Sciences
- 01-224 Warsaw
- Poland
| | - Michał Pieczykolan
- Institute of Organic Chemistry
- Polish Academy of Sciences
- 01-224 Warsaw
- Poland
| | - Sebastian Stecko
- Institute of Organic Chemistry
- Polish Academy of Sciences
- 01-224 Warsaw
- Poland
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39
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Kano T, Aota Y, Maruoka K. Asymmetric Synthesis of Less Accessible α-Tertiary Amines from Alkynyl Z-Ketimines. Angew Chem Int Ed Engl 2017; 56:16293-16296. [PMID: 29110376 DOI: 10.1002/anie.201710084] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Indexed: 11/05/2022]
Abstract
A highly stereoselective synthesis of hitherto less accessible chiral α-tertiary amines with multiple structurally similar linear carbon chains was achieved through chiral auxiliary mediated addition of organolithium reagents to the geometrically well-controlled alkynyl Z-ketimines. This stereoselective nucleophilic addition offers a general approach to the asymmetric synthesis of nitrogen-containing chiral materials.
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Affiliation(s)
- Taichi Kano
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto, 606-8502, Japan
| | - Yusuke Aota
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto, 606-8502, Japan
| | - Keiji Maruoka
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto, 606-8502, Japan
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40
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Eto R, Oba M, Ueda A, Uku T, Doi M, Matsuo Y, Tanaka T, Demizu Y, Kurihara M, Tanaka M. Diastereomeric Right- and Left-Handed Helical Structures with Fourteen (R)-Chiral Centers. Chemistry 2017; 23:18120-18124. [PMID: 29134704 DOI: 10.1002/chem.201705306] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Indexed: 12/31/2022]
Abstract
The relationship between chiral centers and the helical-screw control of their peptides has already been reported, but it has yet to be elucidated in detail. A chiral four-membered ring α,α-disubstituted α-amino acid with a (R,R)-butane-2,3-diol acetal moiety at the γ-position, but no α-chiral carbon, was synthesized. X-ray crystallographic analysis unambiguously revealed that its homo-chiral heptapeptide formed right-handed (P) and left-handed (M) 310 -helical structures at a ratio of 1:1. They appeared to be enantiomeric at the peptide backbone, but diastereomeric with fourteen (R)-configuration chiral centers. Conformational analyses of homopeptides in solution also indicated that diastereomeric (P) and (M) helices existed at approximately equal amounts, with a slight preference toward right-handedness, and they quickly interchanged at room temperature. The circumstances of chiral centers are important for the control of their helical-screw direction.
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Affiliation(s)
- Ryo Eto
- Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, 852-8521, Japan
| | - Makoto Oba
- Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, 852-8521, Japan
| | - Atsushi Ueda
- Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, 852-8521, Japan
| | - Tsubasa Uku
- Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, 852-8521, Japan
| | - Mitsunobu Doi
- Osaka University of Pharmaceutical Sciences, Osaka, 569-1094, Japan
| | - Yosuke Matsuo
- Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, 852-8521, Japan
| | - Takashi Tanaka
- Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, 852-8521, Japan
| | - Yosuke Demizu
- National Institute of Health Sciences, Tokyo, 158-8501, Japan
| | - Masaaki Kurihara
- Graduate School of Pharmaceutical Sciences, International University of Health and Welfare, Ohtawara, 324-8501, Japan
| | - Masakazu Tanaka
- Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, 852-8521, Japan
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41
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Kano T, Aota Y, Maruoka K. Asymmetric Synthesis of Less Accessible α-Tertiary Amines from Alkynyl Z-
Ketimines. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201710084] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Taichi Kano
- Department of Chemistry; Graduate School of Science; Kyoto University; Sakyo Kyoto 606-8502 Japan
| | - Yusuke Aota
- Department of Chemistry; Graduate School of Science; Kyoto University; Sakyo Kyoto 606-8502 Japan
| | - Keiji Maruoka
- Department of Chemistry; Graduate School of Science; Kyoto University; Sakyo Kyoto 606-8502 Japan
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42
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Gokada MR, Hunter R, Andrijevic A, Petersen WF, Samanta S, Venter G, Rees-Jones S. Quaternized α,α'-Amino Acids via Curtius Rearrangement of Substituted Malonate-Imidazolidinones. J Org Chem 2017; 82:10650-10658. [PMID: 28903002 DOI: 10.1021/acs.joc.7b01684] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
An efficient synthesis protocol is presented for accessing quaternized α-amino acids in chiral, nonracemic form via diastereoselective malonate alkylation followed by C- to N-transposition. The key stereodifferentiating step involves a diastereoselective alkylation of an α-monosubstituted malonate-imidazolidinone, which is followed first by a chemoselective malonate PMB ester removal and then a Curtius rearrangement to provide the transposition. The method demonstrates a high product ee (89-99% for eight cases) for quaternizing a range of proteinogenic α-amino acids. The stereogenicity in targets 5a-i supports previous conclusions that the diastereoselective alkylation step proceeds via an α-substituted malonate-imidazolidinone enolate in its Z-configuration, with the auxiliary in an s-transC-N conformation.
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Affiliation(s)
- Maheswara Rao Gokada
- Department of Chemistry, University of Cape Town , Rondebosch 7701, South Africa
| | - Roger Hunter
- Department of Chemistry, University of Cape Town , Rondebosch 7701, South Africa
| | - Ana Andrijevic
- Department of Chemistry, University of Cape Town , Rondebosch 7701, South Africa
| | - Wade F Petersen
- Department of Chemistry, University of Cape Town , Rondebosch 7701, South Africa
| | - Sauvik Samanta
- Department of Chemistry, University of Cape Town , Rondebosch 7701, South Africa
| | - Gerhard Venter
- Department of Chemistry, University of Cape Town , Rondebosch 7701, South Africa
| | - Sophie Rees-Jones
- Department of Chemistry, University of Cape Town , Rondebosch 7701, South Africa
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43
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Gober JG, Ghodge SV, Bogart JW, Wever WJ, Watkins RR, Brustad EM, Bowers AA. P450-Mediated Non-natural Cyclopropanation of Dehydroalanine-Containing Thiopeptides. ACS Chem Biol 2017; 12:1726-1731. [PMID: 28535034 DOI: 10.1021/acschembio.7b00358] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Thiopeptides are a growing class of ribosomally synthesized and post-translationally modified peptide (RiPP) natural products. Many biosynthetic enzymes for RiPPs, especially thiopeptides, are promiscuous and can accept a wide range of peptide substrates with different amino acid sequences; thus, these enzymes have been used as tools to generate new natural product derivatives. Here, we explore an alternative route to molecular complexity by engineering thiopeptide tailoring enzymes to do new or non-native chemistry. We explore cytochrome P450 enzymes as biocatalysts for cyclopropanation of dehydroalanines, chemical motifs found widely in thiopeptides and other RiPP-based natural products. We find that P450TbtJ1 and P450TbtJ2 selectively cyclopropanate dehydroalanines in a number of complex thiopeptide-based substrates and convert them into 1-amino-2-cyclopropane carboxylic acids (ACCAs), which are important pharmacophores. This chemistry takes advantage of the innate affinity of these biosynthetic enzymes for their substrates and enables incorporation of new pharmacophores into thiopeptide architectures. This work also presents a strategy for diversification of natural products through rationally repurposing biosynthetic enzymes as non-natural biocatalysts.
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Affiliation(s)
- Joshua G. Gober
- Department
of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27514, United States
| | - Swapnil V. Ghodge
- Division
of Chemical Biology and Medicinal Chemistry, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27514, United States
| | - Jonathan W. Bogart
- Division
of Chemical Biology and Medicinal Chemistry, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27514, United States
| | - Walter J. Wever
- Division
of Chemical Biology and Medicinal Chemistry, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27514, United States
| | - Richard R. Watkins
- Department
of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27514, United States
| | - Eric M. Brustad
- Department
of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27514, United States
| | - Albert A. Bowers
- Division
of Chemical Biology and Medicinal Chemistry, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27514, United States
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44
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Pieczykolan M, Narczyk A, Stecko S. The Synthesis of Chiral β,β-Diaryl Allylic Alcohols and Their Use in the Preparation of α-Tertiary Allylamines and Quaternary α-Amino Acids. J Org Chem 2017; 82:5636-5651. [PMID: 28492314 DOI: 10.1021/acs.joc.7b00475] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
An approach to nonracemic β,β-diarylsubstituted allyl alcohols is described. Their synthesis starts from l-lactic acid-derived propargyl alcohol, which is submitted to sequential Sonogashira/Suzuki or Sonagashira/Stille coupling reactions. Both approaches enable the synthesis of either (Z)- or (E)-allylic alcohols regarding the order of introducing coupling agents. The obtained allyl alcohols were applied in the synthesis of nonracemic α-tertiary allylamines via stereocontrolled cyanate-to-isocyanate sigmatropic rearrangement reactions of the corresponding allyl carbamates. The stereoselectivity of the process is controlled by the geometry of the double bond of the starting allyl derivative. As demonstrated, a rearrangement of (S,Z)-allyl carbamates provides (S)-teriary allylamines, whereas the transformation (S,E)-isomers leads to (R)-allylamines.
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Affiliation(s)
- Michał Pieczykolan
- Institute of Organic Chemistry, Polish Academy of Sciences , Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Aleksandra Narczyk
- Institute of Organic Chemistry, Polish Academy of Sciences , Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Sebastian Stecko
- Institute of Organic Chemistry, Polish Academy of Sciences , Kasprzaka 44/52, 01-224 Warsaw, Poland
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45
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α-Amino acids with electrically charged and polar uncharged side chains as chiral synthon: Application to the synthesis of bioactive alkaloids (1996-Dec, 2013). Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.02.029] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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46
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47
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Ricci L, Sernissi L, Scarpi D, Bianchini F, Contini A, Occhiato EG. Synthesis and conformational analysis of peptides embodying 2,3-methanopipecolic acids. Org Biomol Chem 2017; 15:6826-6836. [DOI: 10.1039/c7ob01617d] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
When 2,3-methanopipecolic acids replace a proline in peptides, a marked preference (42–92%) for thecisgeometry around the pipecolic amide bond is observed in both water and organic solvents.
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Affiliation(s)
- Luciano Ricci
- Department of Chemistry “U. Schiff”
- University of Florence
- Sesto Fiorentino
- Italy
| | - Lorenzo Sernissi
- Department of Chemistry “U. Schiff”
- University of Florence
- Sesto Fiorentino
- Italy
| | - Dina Scarpi
- Department of Chemistry “U. Schiff”
- University of Florence
- Sesto Fiorentino
- Italy
| | - Francesca Bianchini
- Department of Biomedical
- Experimental and Clinical Sciences “Mario Serio”
- University of Florence
- Florence
- Italy
| | - Alessandro Contini
- Department of Pharmaceutical Sciences
- University of Milan
- I-20133 Milan
- Italy
| | - Ernesto G. Occhiato
- Department of Chemistry “U. Schiff”
- University of Florence
- Sesto Fiorentino
- Italy
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48
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Haspel N, Zheng J, Aleman C, Zanuy D, Nussinov R. A Protocol for the Design of Protein and Peptide Nanostructure Self-Assemblies Exploiting Synthetic Amino Acids. Methods Mol Biol 2017; 1529:323-352. [PMID: 27914060 PMCID: PMC7900906 DOI: 10.1007/978-1-4939-6637-0_17] [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] [Indexed: 06/16/2024]
Abstract
In recent years there has been increasing interest in nanostructure design based on the self-assembly properties of proteins and polymers. Nanodesign requires the ability to predictably manipulate the properties of the self-assembly of autonomous building blocks, which can fold or aggregate into preferred conformational states. The design includes functional synthetic materials and biological macromolecules. Autonomous biological building blocks with available 3D structures provide an extremely rich and useful resource. Structural databases contain large libraries of protein molecules and their building blocks with a range of sizes, shapes, surfaces, and chemical properties. The introduction of engineered synthetic residues or short peptides into these building blocks can greatly expand the available chemical space and enhance the desired properties. Herein, we summarize a protocol for designing nanostructures consisting of self-assembling building blocks, based on our recent works. We focus on the principles of nanostructure design with naturally occurring proteins and synthetic amino acids, as well as hybrid materials made of amyloids and synthetic polymers.
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Affiliation(s)
- Nurit Haspel
- Department of Computer Science, The University of Massachusetts Boston, 100 Morrissey Blvd., Boston, MA, 02125, USA.
| | - Jie Zheng
- Department of Chemical and Biomolecular Engineering, The University of Akron, Akron, OH, 44325, USA
| | - Carlos Aleman
- Departament d'Enginyeria Química, E. T. S. d'Enginyeria Industrial de Barcelona, Universitat Politècnica de Catalunya, Diagonal 647, 08028, Barcelona, Spain
- Center for Research in Nano-Engineering, Universitat Politècnica de Catalunya, Campus Sud, Edifici C', C/Pasqual i Vila s/n, E-08028, Barcelona, Spain
| | - David Zanuy
- Departament d'Enginyeria Química, E. T. S. d'Enginyeria Industrial de Barcelona, Universitat Politècnica de Catalunya, Diagonal 647, 08028, Barcelona, Spain
| | - Ruth Nussinov
- Department of Human Genetics and Molecular Medicine, Sackler School of Medicine, Sackler Inst. of Molecular Medicine, Tel Aviv University, Tel Aviv, 69978, Israel
- Basic Science Program, Leidos Biomedical Research, Inc., Frederick, MD, 21702, USA
- Cancer and Inflammation Program, National Cancer Institute, Frederick, MD, 21702, USA
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49
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Guo CX, Zhang WZ, Zhou H, Zhang N, Lu XB. Access to α-Arylglycines by Umpolung Carboxylation of Aromatic Imines with Carbon Dioxide. Chemistry 2016; 22:17156-17159. [DOI: 10.1002/chem.201604623] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Indexed: 01/05/2023]
Affiliation(s)
- Chun-Xiao Guo
- State Key Laboratory of Fine Chemicals; Dalian University of Technology; Dalian 116024 China
| | - Wen-Zhen Zhang
- State Key Laboratory of Fine Chemicals; Dalian University of Technology; Dalian 116024 China
| | - Hui Zhou
- State Key Laboratory of Fine Chemicals; Dalian University of Technology; Dalian 116024 China
| | - Ning Zhang
- State Key Laboratory of Fine Chemicals; Dalian University of Technology; Dalian 116024 China
| | - Xiao-Bing Lu
- State Key Laboratory of Fine Chemicals; Dalian University of Technology; Dalian 116024 China
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50
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Ueda A, Umeno T, Doi M, Akagawa K, Kudo K, Tanaka M. Helical-Peptide-Catalyzed Enantioselective Michael Addition Reactions and Their Mechanistic Insights. J Org Chem 2016; 81:6343-56. [PMID: 27384597 DOI: 10.1021/acs.joc.6b00982] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Helical peptide foldamer catalyzed Michael addition reactions of nitroalkane or dialkyl malonate to α,β-unsaturated ketones are reported along with the mechanistic considerations of the enantio-induction. A wide variety of α,β-unsaturated ketones, including β-aryl, β-alkyl enones, and cyclic enones, were found to be catalyzed by the helical peptide to give Michael adducts with high enantioselectivities (up to 99%). On the basis of X-ray crystallographic analysis and depsipeptide study, the amide protons, N(2)-H and N(3)-H, at the N terminus in the α-helical peptide catalyst were crucial for activating Michael donors, while the N-terminal primary amine activated Michael acceptors through the formation of iminium ion intermediates.
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Affiliation(s)
- Atsushi Ueda
- Graduate School of Biomedical Sciences, Nagasaki University , 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
| | - Tomohiro Umeno
- Graduate School of Biomedical Sciences, Nagasaki University , 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
| | - Mitsunobu Doi
- Osaka University of Pharmaceutical Sciences , Osaka 569-1094, Japan
| | - Kengo Akagawa
- Institute of Industrial Science, The University of Tokyo , Tokyo 153-8505, Japan
| | - Kazuaki Kudo
- Institute of Industrial Science, The University of Tokyo , Tokyo 153-8505, Japan
| | - Masakazu Tanaka
- Graduate School of Biomedical Sciences, Nagasaki University , 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
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