1
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Pacifico R, Del Gaudio N, Bove G, Altucci L, Siragusa L, Cruciani G, Ruvo M, Bellavita R, Grieco P, Adamo MFA. Discovery of a new class of triazole based inhibitors of acetyl transferase KAT2A. J Enzyme Inhib Med Chem 2022; 37:1987-1994. [PMID: 35880250 PMCID: PMC9331200 DOI: 10.1080/14756366.2022.2097447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
We have recently developed a new synthetic methodology that provided both N-aryl-5-hydroxytriazoles and N-pyridine-4-alkyl triazoles. A selection of these products was carried through virtual screening towards targets that are contemporary and validated for drug discovery and development. This study determined a number of potential structure target dyads of which N-pyridinium-4-carboxylic-5-alkyl triazole displayed the highest score specificity towards KAT2A. Binding affinity tests of abovementioned triazole and related analogs towards KAT2A confirmed the predictions of the in-silico assay. Finally, we have run in vitro inhibition assays of selected triazoles towards KAT2A; the ensemble of binding and inhibition assays delivered pyridyl-triazoles carboxylates as the prototype of a new class of inhibitors of KAT2A.
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Affiliation(s)
- Roberta Pacifico
- Centre for Synthesis and Chemical Biology (CSCB), Department of Chemistry, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Nunzio Del Gaudio
- Department of precision medicine, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Guglielmo Bove
- Department of precision medicine, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Lucia Altucci
- Department of precision medicine, University of Campania Luigi Vanvitelli, Naples, Italy
| | | | - Gabriele Cruciani
- Laboratory for Chemometrics and Molecular Modeling, Department of Chemistry, Biology, and Biotechnology, University of Perugia, Perugia, Italy
| | - Menotti Ruvo
- Institute of Biostructures and Bioimaging, Consiglio Nazionale delle Ricerche, Naples, Italy
| | - Rosa Bellavita
- Department of Pharmacy, School of Medicine, University of Naples 'Federico II', Naples, Italy
| | - Paolo Grieco
- Department of Pharmacy, School of Medicine, University of Naples 'Federico II', Naples, Italy
| | - Mauro F A Adamo
- Centre for Synthesis and Chemical Biology (CSCB), Department of Chemistry, Royal College of Surgeons in Ireland, Dublin, Ireland
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2
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Monasterolo C, Adamo MFA. Vinylogous Nitro-Haloform Reaction Enables Aromatic Amination. Org Lett 2022; 24:4729-4733. [PMID: 35763040 PMCID: PMC9274776 DOI: 10.1021/acs.orglett.2c01494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
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The first example
of an aromatic haloform reaction is reported,
defining a conceptually new haloform-type approach to the metal-free
functionalization of arenes. We demonstrated that heteroarenes bearing
a vinylogous nitromethane system, via the stage of a trichloromethane
derivative, could undergo aromatic amination to produce N-functionalized
arenes in quantitative yields and without the need for transition-metal
catalysis. The haloform-type amination was implemented in the development
of effective orthogonal N-protection strategies, establishing a new
promising N-protecting reagent.
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Affiliation(s)
- Claudio Monasterolo
- Centre for Synthesis and Chemical Biology, Department of Chemistry, Royal College of Surgeons in Ireland, Dublin 2, Ireland
| | - Mauro F A Adamo
- Centre for Synthesis and Chemical Biology, Department of Chemistry, Royal College of Surgeons in Ireland, Dublin 2, Ireland
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3
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Costanzo M, Cortigiani M, Gillick‐Healy MW, Kelly BG, Monasterolo C, Adamo MFA. Front Cover: Organocatalytic Desymmetrization of Meso‐Aziridines Via Asymmetric Intramolecular Rearrangement (Eur. J. Org. Chem. 33/2021). European J Org Chem 2021. [DOI: 10.1002/ejoc.202100933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Martina Costanzo
- Centre for Synthesis and Chemical Biology Department of Chemistry Royal College of Surgeons in Ireland 123 St. Stephen's Green Dublin 2 Ireland
| | - Mauro Cortigiani
- Centre for Synthesis and Chemical Biology Department of Chemistry Royal College of Surgeons in Ireland 123 St. Stephen's Green Dublin 2 Ireland
| | | | - Brian G. Kelly
- Kelada Pharmachem. Ltd. A1.01, Science Centre South Belfield, Dublin 4 Ireland
| | - Claudio Monasterolo
- Centre for Synthesis and Chemical Biology School of Chemistry University College Dublin Belfield, Dublin 4 Ireland
| | - Mauro F. A. Adamo
- Centre for Synthesis and Chemical Biology Department of Chemistry Royal College of Surgeons in Ireland 123 St. Stephen's Green Dublin 2 Ireland
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4
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Costanzo M, Cortigiani M, Gillick‐Healy MW, Kelly BG, Monasterolo C, Adamo MFA. Organocatalytic Desymmetrization of Meso‐Aziridines Via Asymmetric Intramolecular Rearrangement. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100502] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Martina Costanzo
- Centre for Synthesis and Chemical Biology Department of Chemistry Royal College of Surgeons in Ireland 123 St. Stephen's Green Dublin 2 Ireland
| | - Mauro Cortigiani
- Centre for Synthesis and Chemical Biology Department of Chemistry Royal College of Surgeons in Ireland 123 St. Stephen's Green Dublin 2 Ireland
| | | | - Brian G. Kelly
- Kelada Pharmachem. Ltd A1.01, Science Centre South, Belfield Dublin 4 Ireland
| | - Claudio Monasterolo
- Centre for Synthesis and Chemical Biology School of Chemistry University College Dublin, Belfield Dublin 4 Ireland
| | - Mauro F. A. Adamo
- Centre for Synthesis and Chemical Biology Department of Chemistry Royal College of Surgeons in Ireland 123 St. Stephen's Green Dublin 2 Ireland
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5
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Pacifico R, Destro D, Gillick-Healy MW, Kelly BG, Adamo MFA. Preparation of Acidic 5-Hydroxy-1,2,3-triazoles via the Cycloaddition of Aryl Azides with β-Ketoesters. J Org Chem 2021; 86:11354-11360. [PMID: 34314172 PMCID: PMC8419836 DOI: 10.1021/acs.joc.1c00778] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Herein, a high-yielding cycloaddition reaction of β-ketoesters and azides to provide 1,2,3-triazoles is described. The reactions employing 2-unsubstituted β-ketoesters were found to provide 5-methyl-1,2,3-triazoles, whereas 2-alkyl-substituted β-ketoesters provided 5-hydroxy-1,2,3-triazoles (shown to be relatively acidic) in high yields and as single regioisomers. Several novel compounds were reported and characterized including long-chain 5-hydroxy-1,2,3-triazoles potentially bioisosteric to hydroxamic acids.
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Affiliation(s)
- Roberta Pacifico
- Centre for Synthesis and Chemical Biology (CSCB), Department of Chemistry, Royal College of Surgeons in Ireland, 123 St. Stephen's Green, Dublin 2, Ireland
| | - Dario Destro
- Centre for Synthesis and Chemical Biology (CSCB), Department of Chemistry, Royal College of Surgeons in Ireland, 123 St. Stephen's Green, Dublin 2, Ireland
| | - Malachi W Gillick-Healy
- Centre for Synthesis and Chemical Biology (CSCB), Department of Chemistry, Royal College of Surgeons in Ireland, 123 St. Stephen's Green, Dublin 2, Ireland.,KelAda Pharmachem Ltd., A1.01 Science Centre South, Belfield, Dublin 4, Ireland
| | - Brian G Kelly
- KelAda Pharmachem Ltd., A1.01 Science Centre South, Belfield, Dublin 4, Ireland
| | - Mauro F A Adamo
- Centre for Synthesis and Chemical Biology (CSCB), Department of Chemistry, Royal College of Surgeons in Ireland, 123 St. Stephen's Green, Dublin 2, Ireland
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6
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Bencivenni G, Salazar Illera D, Moccia M, Houk KN, Izzo JA, Novacek J, Grieco P, Vetticatt MJ, Waser M, Adamo MFA. Study of Ground State Interactions of Enantiopure Chiral Quaternary Ammonium Salts and Amides, Nitroalkanes, Nitroalkenes, Esters, Heterocycles, Ketones and Fluoroamides. Chemistry 2021; 27:11352-11366. [PMID: 33963788 PMCID: PMC8453964 DOI: 10.1002/chem.202100908] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Indexed: 11/21/2022]
Abstract
Chiral phase‐transfer catalysis provides high level of enantiocontrol, however no experimental data showed the interaction of catalysts and substrates. 1H NMR titration was carried out on Cinchona and Maruoka ammonium bromides vs. nitro, carbonyl, heterocycles, and N−F containing compounds. It was found that neutral organic species and quaternary ammonium salts interacted via an ensemble of catalyst +N−C−H and (sp2)C−H, specific for each substrate studied. The correspondent BArF salts interacted with carbonyls via a diverse set of +N−C−H and (sp2)C−H compared to bromides. This data suggests that BArF ammonium salts may display a different enantioselectivity profile. Although not providing quantitative data for the affinity constants, the data reported proofs that chiral ammonium salts coordinate with substrates, prior to transition state, through specific C−H positions in their structures, providing a new rational to rationalize the origin of enantioselectivity in their catalyses.
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Affiliation(s)
- Grazia Bencivenni
- Department of Chemistry, RCSI, University of Medicine and Health Science, 123 St Stephen's Green, Dublin 2, Dublin, Republic of Ireland
| | - Diana Salazar Illera
- Department of Chemistry, RCSI, University of Medicine and Health Science, 123 St Stephen's Green, Dublin 2, Dublin, Republic of Ireland
| | - Maria Moccia
- CNR-ICC, Institute of Crystallography, Via G. Amendola 122/O, 70126, Bari, Italy
| | - K N Houk
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA 90095-1569, USA
| | - Joseph A Izzo
- Department of Chemistry, State University of NY Binghamton, Binghamton, NY, USA
| | - Johanna Novacek
- Institute of Organic Chemistry, Johannes Kepler University Linz, Altenbergerstrasse 69, 4040, Linz, Austria
| | - Paolo Grieco
- Faculty of Pharmacy, University of Naples Federico II, Corso Umberto I, 40, 80138, Napoli, NA, Italy
| | - Mathew J Vetticatt
- Department of Chemistry, State University of NY Binghamton, Binghamton, NY, USA
| | - Mario Waser
- Institute of Organic Chemistry, Johannes Kepler University Linz, Altenbergerstrasse 69, 4040, Linz, Austria
| | - Mauro F A Adamo
- Department of Chemistry, RCSI, University of Medicine and Health Science, 123 St Stephen's Green, Dublin 2, Dublin, Republic of Ireland
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7
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Moccia M, Mercurio FA, Langella E, Piacenti V, Leone M, Adamo MFA, Saviano M. Structural Insights on Tiny Peptide Nucleic Acid (PNA) Analogues of miRNA-34a: An in silico and Experimental Integrated Approach. Front Chem 2020; 8:568575. [PMID: 33330358 PMCID: PMC7719796 DOI: 10.3389/fchem.2020.568575] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Accepted: 11/02/2020] [Indexed: 11/17/2022] Open
Abstract
In the present work, structural features of the interaction between peptide nucleic acid (PNA)-based analogs of the tumor-suppressor microRNA-34a with both its binding sites on MYCN mRNA were investigated. In particular, the region from base 1 to 8 ("seed" region) of miR-34a was reproduced in the form of an 8-mer PNA fragment (tiny PNA), and binding to target 3'UTR MYCN mRNA, was studied by a seldom reported and detailed NMR characterization, providing evidence for the formation of anti-parallel duplexes with a well-organized structural core. The formation of PNA-3'UTR duplexes was also confirmed by Circular Dichroism, and their melting curves were measured by UV spectroscopy. Nevertheless, this study offered a valuable comparison between molecular dynamics predictions and experimental evidence, which showed great correlation. Preliminary uptake assays were carried out in Neuroblastoma Kelly cells, using short peptide conjugates as carriers and FITC fluorescent tag for subcellular localization. Moderate internalization was observed without the use of transfecting agents. The reported results corroborate the interest toward the design and development of chimeric PNA/RNA sequences as effective RNA-targeting agents.
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Affiliation(s)
- Maria Moccia
- Institute of Crystallography, National Research Council, Department of Chemical Sciences and Materials Technologies, Bari, Italy
| | - Flavia Anna Mercurio
- Institute of Biostructures and Bioimaging, National Research Council, Naples, Italy
| | - Emma Langella
- Institute of Biostructures and Bioimaging, National Research Council, Naples, Italy
| | - Valerio Piacenti
- Royal College of Surgeons in Ireland, Department of Pharmaceutical and Medicinal Chemistry, Dublin, Ireland
| | - Marilisa Leone
- Institute of Biostructures and Bioimaging, National Research Council, Naples, Italy
| | - Mauro F. A. Adamo
- Royal College of Surgeons in Ireland, Department of Pharmaceutical and Medicinal Chemistry, Dublin, Ireland
| | - Michele Saviano
- Institute of Crystallography, National Research Council, Department of Chemical Sciences and Materials Technologies, Bari, Italy
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Bencivenni G, Moccia M, Ravelli A, Gillick-Healy MW, Kelly BG, Adamo MFA. First enantioselective synthesis of gingesulfonic acids and unequivocal determination of their absolute stereochemistry. Org Biomol Chem 2020; 18:1091-1094. [PMID: 31994578 DOI: 10.1039/c9ob02662b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein we report the first organocatalysed enantioselective synthesis of gingesulfonic acids and shogasulfonic acids via a mild and convenient aminothiourea-catalysed conjugate addition of bisulfite to the olefin moiety of α,β-unsaturated carbonyls-a technology previously reported by us. A series of optically active naturally occurring sulfonic acids are prepared in their natural and unnatural configurations, and their absolute configurations are unequivocally confirmed by single crystal X-ray diffractometry.
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Affiliation(s)
- Grazia Bencivenni
- Centre for Synthesis and Chemical Biology (CSCB), Department of Chemistry, The Royal College of Surgeons in Ireland, 123 St. Stephen's Green, Dublin 2, Dublin, Ireland.
| | - Maria Moccia
- Consiglio Nazionale delle Ricerche (CNR)-Institute of Crystallography, Via G. Amendola 122/O, 70126 Bari, Italy
| | - Andrea Ravelli
- Centre for Synthesis and Chemical Biology (CSCB), Department of Chemistry, The Royal College of Surgeons in Ireland, 123 St. Stephen's Green, Dublin 2, Dublin, Ireland.
| | - Malachi W Gillick-Healy
- Centre for Synthesis and Chemical Biology (CSCB), Department of Chemistry, The Royal College of Surgeons in Ireland, 123 St. Stephen's Green, Dublin 2, Dublin, Ireland.
| | - Brian G Kelly
- Kelada Pharmachem Ltd. A1.01, Science Centre South, Belfield, Dublin 4, Ireland
| | - Mauro F A Adamo
- Centre for Synthesis and Chemical Biology (CSCB), Department of Chemistry, The Royal College of Surgeons in Ireland, 123 St. Stephen's Green, Dublin 2, Dublin, Ireland.
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9
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Destro D, Bottinelli C, Ferrari L, Albanese DCM, Bencivenni G, Gillick-Healy MW, Kelly BG, Adamo MFA. Enantioselective Synthesis of 3,4-Dihydropyran-2-ones via Phase-Transfer-Catalyzed Addition–Cyclization of Acetylacetone to Cinnamic Thioesters. J Org Chem 2020; 85:5183-5192. [DOI: 10.1021/acs.joc.9b03216] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Dario Destro
- Centre for Synthesis and Chemical Biology (CSCB), Department of Chemistry, Royal College of Surgeons in Ireland, 123 St. Stephen’s Green, Dublin 2, Ireland
| | - Carlo Bottinelli
- Department of Chemistry, Universitá degli Studi di Milano, via Golgi 19, 20133, Milano, Italy
| | - Ludovica Ferrari
- Department of Chemistry, Universitá degli Studi di Milano, via Golgi 19, 20133, Milano, Italy
| | - Domenico C. M. Albanese
- Department of Chemistry, Universitá degli Studi di Milano, via Golgi 19, 20133, Milano, Italy
| | - Grazia Bencivenni
- Centre for Synthesis and Chemical Biology (CSCB), Department of Chemistry, Royal College of Surgeons in Ireland, 123 St. Stephen’s Green, Dublin 2, Ireland
| | - Malachi W. Gillick-Healy
- Centre for Synthesis and Chemical Biology (CSCB), Department of Chemistry, Royal College of Surgeons in Ireland, 123 St. Stephen’s Green, Dublin 2, Ireland
| | - Brian G. Kelly
- Kelada Pharmachem. Ltd. A1.01, Science Centre South, Belfield, Dublin 4, Ireland
| | - Mauro F. A. Adamo
- Centre for Synthesis and Chemical Biology (CSCB), Department of Chemistry, Royal College of Surgeons in Ireland, 123 St. Stephen’s Green, Dublin 2, Ireland
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10
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Canestrari D, Cioffi C, Biancofiore I, Lancianesi S, Ghisu L, Ruether M, O'Brien J, Adamo MFA, Ibrahim H. Sulphide as a leaving group: highly stereoselective bromination of alkyl phenyl sulphides. Chem Sci 2019; 10:9042-9050. [PMID: 31827746 PMCID: PMC6889150 DOI: 10.1039/c9sc03560e] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Accepted: 08/07/2019] [Indexed: 12/18/2022] Open
Abstract
A conceptionally novel nucleophilic substitution approach to synthetically important alkyl bromides is presented. Using molecular bromine (Br2), readily available secondary benzyl and tertiary alkyl phenyl sulphides are converted into the corresponding bromides under exceptionally mild, acid- and base-free reaction conditions. This simple transformation allows the isolation of elimination sensitive benzylic β-bromo carbonyl and nitrile compounds in mostly high yields and purities. Remarkably, protic functionalities such as acids and alcohols are tolerated. Enantioenriched benzylic β-sulphido esters, readily prepared by asymmetric sulpha-Michael addition, produce the corresponding inverted bromides with high stereoselectivities, approaching complete enantiospecificity at -40 °C. Significantly, the reported benzylic β-bromo esters can be stored without racemisation for prolonged periods at -20 °C. Their synthetic potential was demonstrated by the one-pot preparation of γ-azido alcohol (S)-5 in 90% ee. NMR studies revealed an initial formation of a sulphide bromine adduct, which in turn is in equilibrium with a postulated dibromosulphurane intermediate that undergoes C-Br bond formation.
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Affiliation(s)
- Daniele Canestrari
- Centre for Synthesis and Chemical Biology (CSCB) , Department of Chemistry , Royal College of Surgeons in Ireland , 123 St. Stephen's Green , Dublin 2 , Ireland . ;
| | - Caterina Cioffi
- Centre for Synthesis and Chemical Biology (CSCB) , Department of Chemistry , Royal College of Surgeons in Ireland , 123 St. Stephen's Green , Dublin 2 , Ireland . ;
| | - Ilaria Biancofiore
- Centre for Synthesis and Chemical Biology (CSCB) , Department of Chemistry , Royal College of Surgeons in Ireland , 123 St. Stephen's Green , Dublin 2 , Ireland . ;
- IRBM Science Park S.p.A , Department of Medicinal Chemistry , Via Pontina, 30.600 , 00071 Pomezia RM , Italy
| | - Stefano Lancianesi
- Centre for Synthesis and Chemical Biology (CSCB) , Department of Chemistry , Royal College of Surgeons in Ireland , 123 St. Stephen's Green , Dublin 2 , Ireland . ;
| | - Lorenza Ghisu
- Centre for Synthesis and Chemical Biology (CSCB) , Department of Chemistry , Royal College of Surgeons in Ireland , 123 St. Stephen's Green , Dublin 2 , Ireland . ;
| | - Manuel Ruether
- Trinity Biomedical Sciences Institute , School of Chemistry , The University of Dublin , Trinity College , Dublin 2 , Ireland
| | - John O'Brien
- Trinity Biomedical Sciences Institute , School of Chemistry , The University of Dublin , Trinity College , Dublin 2 , Ireland
| | - Mauro F A Adamo
- Centre for Synthesis and Chemical Biology (CSCB) , Department of Chemistry , Royal College of Surgeons in Ireland , 123 St. Stephen's Green , Dublin 2 , Ireland . ;
| | - Hasim Ibrahim
- Centre for Synthesis and Chemical Biology (CSCB) , Department of Chemistry , Royal College of Surgeons in Ireland , 123 St. Stephen's Green , Dublin 2 , Ireland . ;
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Piacenti V, Langella E, Autiero I, Nolan JC, Piskareva O, Adamo MFA, Saviano M, Moccia M. A combined experimental and computational study on peptide nucleic acid (PNA) analogues of tumor suppressive miRNA-34a. Bioorg Chem 2019; 91:103165. [PMID: 31419642 DOI: 10.1016/j.bioorg.2019.103165] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 07/19/2019] [Accepted: 07/29/2019] [Indexed: 12/12/2022]
Abstract
MicroRNAs are a ubiquitous class of non-coding RNAs able to regulate gene expression in diverse biological processes. Widespread miRNAs deregulation was reported in numerous diseases including cancer, with several miRNAs playing oncogenic and/or tumor suppressive role by targeting multiple mRNAs simultaneously. Based on these findings, miRNAs have emerged as promising therapeutic tools for cancer treatment. Herein, for the first time, peptide nucleic acids (PNAs) were studied to develop a new class of molecules able to target 3'UTR on MYCN mRNA without a fully complementary base pairing sequence (as miRNAs). For our proof of concept study we have selected as a model the miRNA-34a, which acts as a tumor suppressor in a number of cancers including neuroblastoma. In particular, miRNA-34a is a direct regulator of MYCN oncogene, whose overexpression is a prominent biomarker for the highly aggressive neuroblastoma phenotype. The design and synthesis of three PNA-based oligomers of different length was described, and their interaction with two binding sites on the target MYCN mRNA was investigated by molecular dynamics simulation, and spectroscopic techniques (CD, UV). Intake assay and confocal microscopy of PNA sequences were also carried out in vitro on neuroblastoma Kelly cells. Despite the presence of multiple mismatches, the PNA/RNA hetero duplexes retain very interesting features in terms of stability, affinity as well as of cellular uptake.
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Affiliation(s)
- Valerio Piacenti
- RCSI, Dept. of Pharmaceutical & Medicinal Chemistry, 123 St Stephen's Green, Dublin 2, Ireland
| | - Emma Langella
- National Research Council (CNR)-IBB, via Mezzocannone 16, 80134 Naples, Italy
| | - Ida Autiero
- National Research Council (CNR)-IBB, via Mezzocannone 16, 80134 Naples, Italy
| | - John C Nolan
- RCSI, Dept. of Cancer Genetics, York Street, Dublin 2, Ireland
| | - Olga Piskareva
- RCSI, Dept. of Cancer Genetics, York Street, Dublin 2, Ireland
| | - Mauro F A Adamo
- RCSI, Dept. of Pharmaceutical & Medicinal Chemistry, 123 St Stephen's Green, Dublin 2, Ireland
| | - Michele Saviano
- National Research Council (CNR)-IC, via G. Amendola 122/O, 70126 Bari, Italy
| | - Maria Moccia
- National Research Council (CNR)-IC, via G. Amendola 122/O, 70126 Bari, Italy.
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12
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Cortigiani M, Mereu A, Gillick Healy M, Adamo MFA. Enantioselective Desymmetrization of cis-3,5-O-Arylidenecyclohexanones Catalyzed by Cinchona-Derived Quaternary Ammonium Salts. J Org Chem 2019; 84:4112-4119. [DOI: 10.1021/acs.joc.9b00108] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
| | - Andrea Mereu
- Linnea SA, Via Cantonale 70, CH-6595 Riazzino (TI), Switzerland
| | | | - Mauro F. A. Adamo
- Centre for Synthesis and Chemical Biology (CSCB), Department of Chemistry, Royal College of Surgeons in Ireland, 123 St. Stephen’s Green, Dublin 2, Ireland
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13
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Disetti P, Piras L, Moccia M, Saviano M, Adamo MFA. Model Studies for the Preparation of Oxepanes and Fused Compounds by Tandem [4+3] Cycloaddition/Ring-Opening Metathesis/Cross Metathesis. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700994] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Paolo Disetti
- Department of Pharmaceutical and Medicinal Chemistry; Centre for Synthesis and Chemical Biology (CSCB); Royal College of Surgeons in Ireland; 123 St. Stephen's Green Dublin 2 Ireland
| | - Linda Piras
- Institute of Crystallography; Consiglio Nazionale delle Ricerche (CNR)-Bari; Via G. Amendola 122/O 70126 Bari Italy
| | - Maria Moccia
- Institute of Crystallography; Consiglio Nazionale delle Ricerche (CNR)-Bari; Via G. Amendola 122/O 70126 Bari Italy
| | - Michele Saviano
- Institute of Crystallography; Consiglio Nazionale delle Ricerche (CNR)-Bari; Via G. Amendola 122/O 70126 Bari Italy
| | - Mauro F. A. Adamo
- Department of Pharmaceutical and Medicinal Chemistry; Centre for Synthesis and Chemical Biology (CSCB); Royal College of Surgeons in Ireland; 123 St. Stephen's Green Dublin 2 Ireland
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14
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Affiliation(s)
- Daniele Canestrari
- Centre for Synthesis and
Chemical Biology (CSCB), Department of Pharmaceutical and Medicinal
Chemistry, Royal College of Surgeons in Ireland, 123 St. Stephen’s Green, Dublin 2, Ireland
| | - Stefano Lancianesi
- Centre for Synthesis and
Chemical Biology (CSCB), Department of Pharmaceutical and Medicinal
Chemistry, Royal College of Surgeons in Ireland, 123 St. Stephen’s Green, Dublin 2, Ireland
| | - Eider Badiola
- Centre for Synthesis and
Chemical Biology (CSCB), Department of Pharmaceutical and Medicinal
Chemistry, Royal College of Surgeons in Ireland, 123 St. Stephen’s Green, Dublin 2, Ireland
| | - Chiara Strinna
- Centre for Synthesis and
Chemical Biology (CSCB), Department of Pharmaceutical and Medicinal
Chemistry, Royal College of Surgeons in Ireland, 123 St. Stephen’s Green, Dublin 2, Ireland
| | - Hasim Ibrahim
- Centre for Synthesis and
Chemical Biology (CSCB), Department of Pharmaceutical and Medicinal
Chemistry, Royal College of Surgeons in Ireland, 123 St. Stephen’s Green, Dublin 2, Ireland
| | - Mauro F. A. Adamo
- Centre for Synthesis and
Chemical Biology (CSCB), Department of Pharmaceutical and Medicinal
Chemistry, Royal College of Surgeons in Ireland, 123 St. Stephen’s Green, Dublin 2, Ireland
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15
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Destro D, Sanchez S, Cortigiani M, Adamo MFA. Reaction of azides and enolisable aldehydes under the catalysis of organic bases and Cinchona based quaternary ammonium salts. Org Biomol Chem 2017; 15:5227-5235. [DOI: 10.1039/c7ob00799j] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This work describes a two-step sequence to prepare amides in moderate enantioselectivity from azides and enolisable aldehydes that proceeds under chiral phase transfer catalysis.
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Affiliation(s)
- Dario Destro
- Centre for Synthesis and Chemical Biology (CSCB)
- Royal College of Surgeons in Ireland (RCSI)
- Department of Pharmaceutical and Medicinal Chemistry
- Dublin
- Republic of Ireland
| | - Sandra Sanchez
- Centre for Synthesis and Chemical Biology (CSCB)
- Royal College of Surgeons in Ireland (RCSI)
- Department of Pharmaceutical and Medicinal Chemistry
- Dublin
- Republic of Ireland
| | - Mauro Cortigiani
- Centre for Synthesis and Chemical Biology (CSCB)
- Royal College of Surgeons in Ireland (RCSI)
- Department of Pharmaceutical and Medicinal Chemistry
- Dublin
- Republic of Ireland
| | - Mauro F. A. Adamo
- Centre for Synthesis and Chemical Biology (CSCB)
- Royal College of Surgeons in Ireland (RCSI)
- Department of Pharmaceutical and Medicinal Chemistry
- Dublin
- Republic of Ireland
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16
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Del Fiandra C, Moccia M, Adamo MFA. Enantioselective cyclopropanation of (Z)-3-substituted-2-(4-pyridyl)-acrylonitriles catalyzed by Cinchona ammonium salts. Org Biomol Chem 2016; 14:3105-11. [DOI: 10.1039/c6ob00154h] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Cyclopropane esters holding two quaternary centres were prepared in high yields, complete diatereoselection and up to 83% ee, using a Chincona derived phase-tranfer catalyst.
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Affiliation(s)
- Claudia Del Fiandra
- Centre for Synthesis and Chemical Biology (CSCB)
- Department of Pharmaceutical and Medicinal Chemistry
- Royal College of Surgeons in Ireland
- Dublin 2
- Ireland
| | | | - Mauro F. A. Adamo
- Centre for Synthesis and Chemical Biology (CSCB)
- Department of Pharmaceutical and Medicinal Chemistry
- Royal College of Surgeons in Ireland
- Dublin 2
- Ireland
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17
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Del Fiandra C, Moccia M, Cerulli V, Adamo MFA. Catalytic asymmetric conjugate addition of isocyanoacetate to (Z)-3-substituted-2-(4-pyridyl)-acrylonitrile, a reactive class of Michael acceptor. Chem Commun (Camb) 2016; 52:1697-700. [DOI: 10.1039/c5cc08105j] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Un-substituted isocyanoacetate ethyl ester reacted with Michael acceptors 1a–m under the catalysis of Cinchona based quaternary ammonium salts providing imines 4a–m as a single diastereoisomer and in up to 94% ees.
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Affiliation(s)
- Claudia Del Fiandra
- Centre for Synthesis and Chemical Biology (CSCB)
- Department of Pharmaceutical and Medicinal Chemistry
- Royal College of Surgeons in Ireland
- Dublin 2
- Ireland
| | - Maria Moccia
- National Research Council
- Institute of Crystallography
- 70126 Bari
- Italy
| | - Valentina Cerulli
- Centre for Synthesis and Chemical Biology (CSCB)
- Department of Pharmaceutical and Medicinal Chemistry
- Royal College of Surgeons in Ireland
- Dublin 2
- Ireland
| | - Mauro F. A. Adamo
- Centre for Synthesis and Chemical Biology (CSCB)
- Department of Pharmaceutical and Medicinal Chemistry
- Royal College of Surgeons in Ireland
- Dublin 2
- Ireland
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18
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Moccia M, Cortigiani M, Monasterolo C, Torri F, Del Fiandra C, Fuller G, Kelly B, Adamo MFA. Development and Scale-up of an Organocatalytic Enantioselective Process to Manufacture (S)-Pregabalin. Org Process Res Dev 2015. [DOI: 10.1021/acs.oprd.5b00160] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Maria Moccia
- Centre
for Synthesis and Chemical Biology (CSCB), Royal College of Surgeons in Ireland (RCSI), 123 St. Stephen’s Green, Dublin 2, Ireland
| | - Mauro Cortigiani
- Centre
for Synthesis and Chemical Biology (CSCB), Royal College of Surgeons in Ireland (RCSI), 123 St. Stephen’s Green, Dublin 2, Ireland
| | - Claudio Monasterolo
- Centre
for Synthesis and Chemical Biology (CSCB), Royal College of Surgeons in Ireland (RCSI), 123 St. Stephen’s Green, Dublin 2, Ireland
| | - Federica Torri
- Centre
for Synthesis and Chemical Biology (CSCB), Royal College of Surgeons in Ireland (RCSI), 123 St. Stephen’s Green, Dublin 2, Ireland
| | - Claudia Del Fiandra
- Centre
for Synthesis and Chemical Biology (CSCB), Royal College of Surgeons in Ireland (RCSI), 123 St. Stephen’s Green, Dublin 2, Ireland
| | - Geoffrey Fuller
- Kelada
Pharmachem.
Ltd., 123 St. Stephen’s Green, Dublin 2, Ireland
| | - Brian Kelly
- Kelada
Pharmachem.
Ltd., 123 St. Stephen’s Green, Dublin 2, Ireland
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19
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Disetti P, Moccia M, Salazar Illera D, Suresh S, Adamo MFA. Catalytic enantioselective addition of isocyanoacetate to 3-methyl-4-nitro-5-styrylisoxazoles under phase transfer catalysis conditions. Org Biomol Chem 2015; 13:10609-12. [DOI: 10.1039/c5ob01880c] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The reaction between 3-methyl-4-nitro-5-styrylisoxazoles and ethyl isocyanoacetate proceeded under PTC to give enantioenriched monoadducts in high ee (up to 99%).
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Affiliation(s)
- Paolo Disetti
- Centre for Synthesis and Chemical Biology (CSCB)
- Department of Pharmaceutical and Medicinal Chemistry
- Royal College of Surgeons in Ireland
- Dublin 2
- Ireland
| | - Maria Moccia
- National Research Council-Institute of Crystallography
- 70126 Bari
- Italy
| | - Diana Salazar Illera
- Centre for Synthesis and Chemical Biology (CSCB)
- Department of Pharmaceutical and Medicinal Chemistry
- Royal College of Surgeons in Ireland
- Dublin 2
- Ireland
| | - Surisetti Suresh
- Centre for Synthesis and Chemical Biology (CSCB)
- Department of Pharmaceutical and Medicinal Chemistry
- Royal College of Surgeons in Ireland
- Dublin 2
- Ireland
| | - Mauro F. A. Adamo
- Centre for Synthesis and Chemical Biology (CSCB)
- Department of Pharmaceutical and Medicinal Chemistry
- Royal College of Surgeons in Ireland
- Dublin 2
- Ireland
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20
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Moccia M, Adamo MFA, Saviano M. Insights on chiral, backbone modified peptide nucleic acids: Properties and biological activity. Artif DNA PNA XNA 2014; 5:e1107176. [PMID: 26752710 PMCID: PMC5329900 DOI: 10.1080/1949095x.2015.1107176] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2015] [Revised: 10/02/2015] [Accepted: 10/07/2015] [Indexed: 12/14/2022]
Abstract
PNAs are emerging as useful synthetic devices targeting natural miRNAs. In particular 3 classes of structurally modified PNAs analogs are herein described, namely α, β and γ, which differ by their backbone modification. Their mode and binding affinity for natural nucleic acids and their use in medicinal chemistry as potential miRNA binders is discussed.
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Affiliation(s)
- Maria Moccia
- Consiglio Nazionale delle Ricerche-Institute of Cristallography; Bari, Italy
| | - Mauro F A Adamo
- Centre for Synthesis and Chemical Biology (CSCB); Department of Pharmaceutical & Medicinal Chemistry; Royal College of Surgeons in Ireland; Dublin, Ireland
| | - Michele Saviano
- Consiglio Nazionale delle Ricerche-Institute of Cristallography; Bari, Italy
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21
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Fiandra CD, Piras L, Fini F, Disetti P, Moccia M, Adamo MFA. Phase transfer catalyzed enantioselective cyclopropanation of 4-nitro-5-styrylisoxazoles. Chem Commun (Camb) 2012; 48:3863-5. [DOI: 10.1039/c2cc30401e] [Citation(s) in RCA: 87] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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22
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Moccia M, Fini F, Scagnetti M, Adamo MFA. Catalytic Enantioselective Addition of Sodium Bisulfite to Chalcones. Angew Chem Int Ed Engl 2011; 50:6893-5. [DOI: 10.1002/anie.201102162] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2011] [Indexed: 11/10/2022]
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24
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Dorschner KV, Toomey D, Brennan MP, Heinemann T, Duffy FJ, Nolan KB, Cox D, Adamo MFA, Chubb AJ. TIN-a combinatorial compound collection of synthetically feasible multicomponent synthesis products. J Chem Inf Model 2011; 51:986-95. [PMID: 21495663 DOI: 10.1021/ci100443x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
The synthetic feasibility of any compound library used for virtual screening is critical to the drug discovery process. TIN, a recursive acronym for 'TIN Is Not commercial', is a virtual combinatorial database enumeration of diversity-orientated multicomponent syntheses (MCR). Using a 'one-pot' synthetic technique, 12 unique small molecule scaffolds were developed, predominantly styrylisoxazoles and bis-acetylenic ketones, with extensive derivatization potential. Importantly, the scaffolds were accessible in a single operation from commercially available sources containing R-groups which were then linked combinatorially. This resulted in a combinatorial database of over 28 million product structures, each of which is synthetically feasible. These structures can be accessed through a free Web-based 2D structure search engine or downloaded in SMILES, MOL2, and SDF formats. Subsets include a 10% diversity subset, a drug-like subset, and a lead-like subset that are also freely available for download and virtual screening ( http://mmg.rcsi.ie:8080/tin ).
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Affiliation(s)
- Kristl V Dorschner
- Molecular and Cellular Therapeutics Department, Royal College of Surgeons in Ireland , 123 St. Stephen's Green, Dublin 2, Ireland
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25
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26
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Giorgi G, Adamo MFA, Ponticelli F, Ventura A. Synthesis, structural and conformational properties, and gas phase reactivity of 1,4-dihydropyridine ester and ketone derivatives. Org Biomol Chem 2010; 8:5339-44. [DOI: 10.1039/c0ob00494d] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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27
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Affiliation(s)
- Mauro F. A. Adamo
- Centre for Synthesis and Chemical Biology (CSCB), Department of Pharmaceutical and Medicinal Chemistry, The Royal College of Surgeons in Ireland, 123 St. Stephen’s Green, Dublin 2, Ireland
| | - Murali Nagabelli
- Centre for Synthesis and Chemical Biology (CSCB), Department of Pharmaceutical and Medicinal Chemistry, The Royal College of Surgeons in Ireland, 123 St. Stephen’s Green, Dublin 2, Ireland
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28
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Abstract
1-alkynyl-2-deoxy-D-riboses 7 and 8 were independently synthesized and subsequently used to generate several novel C-nucleosides.
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Affiliation(s)
- Mauro F A Adamo
- Centre for Synthesis and Chemical Biology (CSCB), Department of Pharmaceutical and Medicinal Chemistry, The Royal College of Surgeons in Ireland, 123 St. Stephen's Green, Dublin 2, Dublin, Ireland.
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29
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Abstract
Four novel metal/amine catalysts efficiently converted Boc-NHOH to its acylnitroso species at 5 mol % catalyst loading. These reactions allowed the preparation of polyfunctional hetero Diels-Alder adducts in high yield and from truly commercially available materials.
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Affiliation(s)
- Mauro F A Adamo
- Centre for Synthesis and Chemical Biology (CSCB), Department of Pharmaceutical and Medicinal Chemistry, The Royal College of Surgeons in Ireland, 123 St. Stephen's Green, Dublin 2, Dublin, Ireland.
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31
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Abstract
A three-component one-pot procedure (3-MC) was developed to assemble 3-indolepropionic acids from commercially available materials. This new methodology affords the title compounds in high yields and without the use of chromatography. [reaction: see text].
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Affiliation(s)
- Mauro F A Adamo
- Centre for Synthesis and Chemical Biology, Department of Pharmaceutical and Medicinal Chemistry, The Royal College of Surgeons in Ireland, 123 St. Stephen's Green, Dublin 2, Dublin, Ireland.
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32
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Abstract
A four component one-pot procedure (4-MC) was developed to assemble 3-heteroarylpropionic acids from commercially available materials. This new methodology affords the title compounds in high yields and without the use of chromatography. [reaction: see text]
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Affiliation(s)
- Mauro F A Adamo
- Centre for Synthesis and Chemical Biology (CSCB), Department of Pharmaceutical and Medicinal Chemistry, The Royal College of Surgeons in Ireland, 123 St. Stephen's Green, Dublin 2, Dublin, Ireland.
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Abstract
A three-component one-pot procedure (3-MCR) was developed to assemble the spiroisoxazoline nucleus from commercially available materials. This new methodology affords the title compounds in high yields and without the use of chromatography.
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Affiliation(s)
- Mauro F A Adamo
- Centre for Synthesis and Chemical Biolog, Department of Pharmaceutical and Medicinal Chemistry, Royal College of Surgeons in Ireland, Dublin 2, Dublin, Ireland.
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Adamo MFA, Baldwin JE, Adlington RM. Application of Bis-acetylenic Ketones in Synthesis: One-Pot Preparation of the 1,2,4-Triazepine and Oxatriazaindenone Cores. J Org Chem 2005; 70:3307-8. [PMID: 15823002 DOI: 10.1021/jo047991+] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Bis-acetylenic ketones were used to generate two heterocyclic templates. Two efficient one-pot procedures for the preparation of the triazepine and oxa-triazaindenone cores are described.
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Affiliation(s)
- Mauro F A Adamo
- Centre for Synthesis and Chemical Biology (CSCB), Department of Pharmaceutical and Medicinal Chemistry, The Royal College of Surgeons in Ireland, 123 St. Stephen's Green, Dublin 2, Dublin, Ireland.
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35
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E. Baldwin J, M. Adlington R, J. Wilkinson P, Marquez R, F. A. Adamo M. Studies towards the Biomimetic Synthesis of Ginsenoyne L; Efficient Synthesis of 2'-epi-Ginsenoyne L. HETEROCYCLES 2003. [DOI: 10.3987/com-02-s25] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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36
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Adamo MFA, Aggarwal VK, Sage MA. Epoxidation of Alkenes by Amine Catalyst Precursors: Implication of Aminium Ion and Radical Cation Intermediates [J. Am. Chem. Soc. 2000, 122, 8317−8318]. J Am Chem Soc 2002. [DOI: 10.1021/ja027285v] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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37
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Adamo MFA, Aggarwal VK, Sage MA. Epoxidation of Alkenes by Amine Catalyst Precursors: Implication of Aminium Ion and Radical Cation Intermediates. J Am Chem Soc 2000. [DOI: 10.1021/ja0004433] [Citation(s) in RCA: 74] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mauro F. A. Adamo
- Department of Chemistry, University of Sheffield Brook Hill, Sheffield, S3 7HF, UK
| | - Varinder K. Aggarwal
- Department of Chemistry, University of Sheffield Brook Hill, Sheffield, S3 7HF, UK
| | - Matthew A. Sage
- Department of Chemistry, University of Sheffield Brook Hill, Sheffield, S3 7HF, UK
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38
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Adamo MFA, Aggarwal VK, Sage MA. An Improved Resolution Of 2-Methyl Piperidine And Its Use in The Synthesis Of Homochiral Trans-2,6-Dialkyl Piperidines. SYNTHETIC COMMUN 1999. [DOI: 10.1080/00397919908086162] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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