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Ivanov GS, Tribulovich VG, Pestov NB, David TI, Amoah AS, Korneenko TV, Barlev NA. Artificial genetic polymers against human pathologies. Biol Direct 2022; 17:39. [PMID: 36474260 PMCID: PMC9727881 DOI: 10.1186/s13062-022-00353-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Accepted: 11/29/2022] [Indexed: 12/12/2022] Open
Abstract
Originally discovered by Nielsen in 1991, peptide nucleic acids and other artificial genetic polymers have gained a lot of interest from the scientific community. Due to their unique biophysical features these artificial hybrid polymers are now being employed in various areas of theranostics (therapy and diagnostics). The current review provides an overview of their structure, principles of rational design, and biophysical features as well as highlights the areas of their successful implementation in biology and biomedicine. Finally, the review discusses the areas of improvement that would allow their use as a new class of therapeutics in the future.
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Affiliation(s)
- Gleb S Ivanov
- Institute of Cytology, Tikhoretsky Ave 4, Saint Petersburg, Russia, 194064
- St. Petersburg State Technological Institute (Technical University), Saint Petersburg, Russia, 190013
| | - Vyacheslav G Tribulovich
- St. Petersburg State Technological Institute (Technical University), Saint Petersburg, Russia, 190013
| | - Nikolay B Pestov
- Chumakov Federal Scientific Center for Research and Development of Immune-and-Biological Products, Moscow, Russia, 108819
- Phystech School of Biological and Medical Physics, Moscow Institute of Physics and Technology, Dolgoprudny, Moscow Region, Russia, 141701
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Moscow, Russia, 117997
- Institute of Biomedical Chemistry, Moscow, Russia, 119121б
| | - Temitope I David
- Phystech School of Biological and Medical Physics, Moscow Institute of Physics and Technology, Dolgoprudny, Moscow Region, Russia, 141701
| | - Abdul-Saleem Amoah
- Phystech School of Biological and Medical Physics, Moscow Institute of Physics and Technology, Dolgoprudny, Moscow Region, Russia, 141701
| | - Tatyana V Korneenko
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Moscow, Russia, 117997
| | - Nikolai A Barlev
- Institute of Cytology, Tikhoretsky Ave 4, Saint Petersburg, Russia, 194064.
- Institute of Biomedical Chemistry, Moscow, Russia, 119121б.
- School of Medicine, Nazarbayev University, 010000, Astana, Kazakhstan.
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2
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Esposito A, Talarico G, De Fenza M, D'Alonzo D, Guaragna A. Stereoconvergent Synthesis of Cyclopentenyl Nucleosides by Palladium‐Assisted Allylic Reaction. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200708] [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: 11/08/2022]
Affiliation(s)
- Anna Esposito
- University of Naples Federico II Chemical, Materials and Production Engineering Piazzale V. Tecchio 80, 80125 Naples 80125 Napoli ITALY
| | - Giovanni Talarico
- University of Naples Federico II: Universita degli Studi di Napoli Federico II Chemical Sciences ITALY
| | - Maria De Fenza
- University of Naples Federico II: Universita degli Studi di Napoli Federico II Chemical Sciences ITALY
| | - Daniele D'Alonzo
- University of Naples Federico II: Universita degli Studi di Napoli Federico II Chemical Sciences ITALY
| | - Annalisa Guaragna
- University of Naples Federico II: Universita degli Studi di Napoli Federico II Chemical, Materials and Production Engineering ITALY
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3
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De Fenza M, Esposito A, D’Alonzo D, Guaragna A. Synthesis of Piperidine Nucleosides as Conformationally Restricted Immucillin Mimics. Molecules 2021; 26:1652. [PMID: 33809603 PMCID: PMC8001838 DOI: 10.3390/molecules26061652] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 03/11/2021] [Accepted: 03/11/2021] [Indexed: 12/12/2022] Open
Abstract
The de novo synthesis of piperidine nucleosides from our homologating agent 5,6-dihydro-1,4-dithiin is herein reported. The structure and conformation of nucleosides were conceived to faithfully resemble the well-known nucleoside drugs Immucillins H and A in their bioactive conformation. NMR analysis of the synthesized compounds confirmed that they adopt an iminosugar conformation bearing the nucleobases and the hydroxyl groups in the appropriate orientation.
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Affiliation(s)
- Maria De Fenza
- Department of Chemical Sciences, University of Naples Federico II, Via Cintia, 80126 Naples, Italy; (M.D.F.); (A.E.); (D.D.)
| | - Anna Esposito
- Department of Chemical Sciences, University of Naples Federico II, Via Cintia, 80126 Naples, Italy; (M.D.F.); (A.E.); (D.D.)
| | - Daniele D’Alonzo
- Department of Chemical Sciences, University of Naples Federico II, Via Cintia, 80126 Naples, Italy; (M.D.F.); (A.E.); (D.D.)
| | - Annalisa Guaragna
- Department of Chemical, Materials and Production Engineering, University of Naples Federico II, Piazzale V. Tecchio 80, 80125 Naples, Italy
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4
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Esposito A, D’Alonzo D, D’Errico S, De Gregorio E, Guaragna A. Toward the Identification of Novel Antimicrobial Agents: One-Pot Synthesis of Lipophilic Conjugates of N-Alkyl d- and l-Iminosugars. Mar Drugs 2020; 18:E572. [PMID: 33228211 PMCID: PMC7699595 DOI: 10.3390/md18110572] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 11/13/2020] [Accepted: 11/16/2020] [Indexed: 12/16/2022] Open
Abstract
In the effort to improve the antimicrobial activity of iminosugars, we report the synthesis of lipophilic iminosugars 10a-b and 11a-b based on the one-pot conjugation of both enantiomeric forms of N-butyldeoxynojirimycin (NBDNJ) and N-nonyloxypentyldeoxynojirimycin (NPDNJ) with cholesterol and a succinic acid model linker. The conjugation reaction was tuned using the established PS-TPP/I2/ImH activating system, which provided the desired compounds in high yields (94-96%) by a one-pot procedure. The substantial increase in the lipophilicity of 10a-b and 11a-b is supposed to improve internalization within the bacterial cell, thereby potentially leading to enhanced antimicrobial properties. However, assays are currently hampered by solubility problems; therefore, alternative administration strategies will need to be devised.
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Affiliation(s)
- Anna Esposito
- Department of Chemical Sciences, University of Naples Federico II, Via Cintia, 80126 Naples, Italy; (A.E.); (D.D.)
| | - Daniele D’Alonzo
- Department of Chemical Sciences, University of Naples Federico II, Via Cintia, 80126 Naples, Italy; (A.E.); (D.D.)
| | - Stefano D’Errico
- Department of Pharmacy, University of Naples Federico II, Via Domenico Montesano, 49, 80131 Napoli, Italy;
| | - Eliana De Gregorio
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Via S. Pansini 5, 80131 Naples, Italy;
| | - Annalisa Guaragna
- Department of Chemical, Materials and Production Engineering, University of Naples Federico II, Piazzale V. Tecchio 80, 80125 Naples, Italy
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5
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De Fenza M, Eremeeva E, Troisi R, Yang H, Esposito A, Sica F, Herdewijn P, D'Alonzo D, Guaragna A. Structure-Activity Relationship Study of a Potent α-Thrombin Binding Aptamer Incorporating Hexitol Nucleotides. Chemistry 2020; 26:9589-9597. [PMID: 32363791 DOI: 10.1002/chem.202001504] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Revised: 04/29/2020] [Indexed: 12/13/2022]
Abstract
The replacement of one or more nucleotide residues in the potent α-thrombin-binding aptamer NU172 with hexitol-based nucleotides has been devised to study the effect of these substitutions on the physicochemical and functional properties of the anticoagulant agent. The incorporation of single hexitol nucleotides at the T9 and G18 positions of NU172 substantially retained the physicochemical features of the parent oligonucleotide, as a result of the biomimetic properties of the hexitol backbone. Importantly, the NU172-TH 9 mutant exhibited a higher binding affinity toward human α-thrombin than the native aptamer and an improved stability even after 24 h in 90 % human serum, with a significant increase in the estimated half-life. The anticoagulant activity of the modified oligonucleotide was also found to be slightly preferable to NU172. Overall, these results confirm the potential of hexitol nucleotides as biomimetic agents, while laying the foundations for the development of NU172-inspired α-thrombin-binding aptamers.
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Affiliation(s)
- Maria De Fenza
- Department of Chemical Sciences, Università degli Studi di Napoli Federico II, via Cintia, 80126, Napoli, Italy
| | - Elena Eremeeva
- Rega Institute for Medical Research, Herestraat 49-box 1041, 3000, Leuven, Belgium
| | - Romualdo Troisi
- Department of Chemical Sciences, Università degli Studi di Napoli Federico II, via Cintia, 80126, Napoli, Italy
| | - Hui Yang
- Rega Institute for Medical Research, Herestraat 49-box 1041, 3000, Leuven, Belgium
| | - Anna Esposito
- Department of Chemical Sciences, Università degli Studi di Napoli Federico II, via Cintia, 80126, Napoli, Italy
| | - Filomena Sica
- Department of Chemical Sciences, Università degli Studi di Napoli Federico II, via Cintia, 80126, Napoli, Italy
| | - Piet Herdewijn
- Rega Institute for Medical Research, Herestraat 49-box 1041, 3000, Leuven, Belgium
| | - Daniele D'Alonzo
- Department of Chemical Sciences, Università degli Studi di Napoli Federico II, via Cintia, 80126, Napoli, Italy
| | - Annalisa Guaragna
- Department of Chemical Sciences, Università degli Studi di Napoli Federico II, via Cintia, 80126, Napoli, Italy
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Esposito A, D'Alonzo D, Fenza M, Gregorio E, Tamanini A, Lippi G, Dechecchi MC, Guaragna A. Synthesis and Therapeutic Applications of Iminosugars in Cystic Fibrosis. Int J Mol Sci 2020; 21:E3353. [PMID: 32397443 DOI: 10.3390/ijms21093353] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 05/06/2020] [Accepted: 05/06/2020] [Indexed: 12/13/2022] Open
Abstract
Iminosugars are sugar analogues endowed with a high pharmacological potential. The wide range of biological activities exhibited by these glycomimetics associated with their excellent drug profile make them attractive therapeutic candidates for several medical interventions. The ability of iminosugars to act as inhibitors or enhancers of carbohydrate-processing enzymes suggests their potential use as therapeutics for the treatment of cystic fibrosis (CF). Herein we review the most relevant advances in the field, paying attention to both the chemical synthesis of the iminosugars and their biological evaluations, resulting from in vitro and in vivo assays. Starting from the example of the marketed drug NBDNJ (N-butyl deoxynojirimycin), a variety of iminosugars have exhibited the capacity to rescue the trafficking of F508del-CFTR (deletion of F508 residue in the CF transmembrane conductance regulator), either alone or in combination with other correctors. Interesting results have also been obtained when iminosugars were considered as anti-inflammatory agents in CF lung disease. The data herein reported demonstrate that iminosugars hold considerable potential to be applied for both therapeutic purposes.
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7
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Esposito A, di Giovanni C, De Fenza M, Talarico G, Chino M, Palumbo G, Guaragna A, D'Alonzo D. A Stereoconvergent Tsuji-Trost Reaction in the Synthesis of Cyclohexenyl Nucleosides. Chemistry 2020; 26:2597-2601. [PMID: 31860145 DOI: 10.1002/chem.201905367] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 12/18/2019] [Indexed: 12/14/2022]
Abstract
A highly regio- and stereoselective route to d- and l-cyclohexenyl nucleosides has been devised, using the Tsuji-Trost reaction as the key step. Contrarily to the widely accepted mechanism (involving a net retention of configuration), the reaction proceeded in a highly stereoconvergent manner, providing cis nucleosides regardless of the relative configuration of the starting materials. DFT calculations confirmed the experimental data while suggesting the origin of the stereochemical reaction outcome.
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Affiliation(s)
- Anna Esposito
- Department of Chemical Sciences, Università degli Studi di Napoli Federico II, via Cintia, 80126, Napoli, Italy
| | - Concetta di Giovanni
- Department of Chemical Sciences, Università degli Studi di Napoli Federico II, via Cintia, 80126, Napoli, Italy
| | - Maria De Fenza
- Department of Chemical Sciences, Università degli Studi di Napoli Federico II, via Cintia, 80126, Napoli, Italy
| | - Giovanni Talarico
- Department of Chemical Sciences, Università degli Studi di Napoli Federico II, via Cintia, 80126, Napoli, Italy
| | - Marco Chino
- Department of Chemical Sciences, Università degli Studi di Napoli Federico II, via Cintia, 80126, Napoli, Italy
| | - Giovanni Palumbo
- Department of Chemical Sciences, Università degli Studi di Napoli Federico II, via Cintia, 80126, Napoli, Italy
| | - Annalisa Guaragna
- Department of Chemical Sciences, Università degli Studi di Napoli Federico II, via Cintia, 80126, Napoli, Italy
| | - Daniele D'Alonzo
- Department of Chemical Sciences, Università degli Studi di Napoli Federico II, via Cintia, 80126, Napoli, Italy
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8
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D'Alonzo D, De Fenza M, Porto C, Iacono R, Huebecker M, Cobucci-Ponzano B, Priestman DA, Platt F, Parenti G, Moracci M, Palumbo G, Guaragna A. N-Butyl-l-deoxynojirimycin (l-NBDNJ): Synthesis of an Allosteric Enhancer of α-Glucosidase Activity for the Treatment of Pompe Disease. J Med Chem 2017; 60:9462-9469. [PMID: 29112434 DOI: 10.1021/acs.jmedchem.7b00646] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The highly stereocontrolled de novo synthesis of l-NBDNJ (the unnatural enantiomer of the iminosugar drug Miglustat) and a preliminary evaluation of its chaperoning potential are herein reported. l-NBDNJ is able to enhance lysosomal α-glucosidase levels in Pompe disease fibroblasts, either when administered singularly or when coincubated with the recombinant human α-glucosidase. In addition, differently from its d-enantiomer, l-NBDNJ does not act as a glycosidase inhibitor.
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Affiliation(s)
- Daniele D'Alonzo
- Department of Chemical Sciences, Università degli Studi di Napoli Federico II , via Cintia, 80126 Napoli, Italy
| | - Maria De Fenza
- Department of Chemical Sciences, Università degli Studi di Napoli Federico II , via Cintia, 80126 Napoli, Italy
| | - Caterina Porto
- Department of Translational Medical Sciences, Section of Pediatrics, Università degli Studi di Napoli Federico II , Via S. Pansini 5, 80131 Napoli, Italy
| | - Roberta Iacono
- Institute of Biosciences and Bioresources, Consiglio Nazionale delle Ricerche , Via P. Castellino 111, 80131 Napoli, Italy
| | - Mylene Huebecker
- Department of Pharmacology, University of Oxford , Mansfield Road, Oxford OX1 3QT, U.K
| | - Beatrice Cobucci-Ponzano
- Institute of Biosciences and Bioresources, Consiglio Nazionale delle Ricerche , Via P. Castellino 111, 80131 Napoli, Italy
| | - David A Priestman
- Department of Pharmacology, University of Oxford , Mansfield Road, Oxford OX1 3QT, U.K
| | - Frances Platt
- Department of Pharmacology, University of Oxford , Mansfield Road, Oxford OX1 3QT, U.K
| | - Giancarlo Parenti
- Department of Translational Medical Sciences, Section of Pediatrics, Università degli Studi di Napoli Federico II , Via S. Pansini 5, 80131 Napoli, Italy.,Telethon Institute of Genetics and Medicine , Via Campi Flegrei 34, 80078 Pozzuoli, Italy
| | - Marco Moracci
- Institute of Biosciences and Bioresources, Consiglio Nazionale delle Ricerche , Via P. Castellino 111, 80131 Napoli, Italy.,Department of Biology, Università degli Studi di Napoli Federico II , via Cintia, 80126 Napoli, Italy
| | - Giovanni Palumbo
- Department of Chemical Sciences, Università degli Studi di Napoli Federico II , via Cintia, 80126 Napoli, Italy
| | - Annalisa Guaragna
- Department of Chemical Sciences, Università degli Studi di Napoli Federico II , via Cintia, 80126 Napoli, Italy
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Paolella C, D'Alonzo D, Schepers G, Van Aerschot A, Di Fabio G, Palumbo G, Herdewijn P, Guaragna A. Oligonucleotides containing a ribo-configured cyclohexanyl nucleoside: probing the role of sugar conformation in base pairing selectivity. Org Biomol Chem 2016; 13:10041-9. [PMID: 26293202 DOI: 10.1039/c5ob01449b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The synthesis and a preliminary evaluation of the pairing properties of ribo-cyclohexanyl nucleic acids (r-CNA) is herein reported. Incorporation of a single r-CNA nucleotide into natural duplexes did not enhance their stability, while a very high pairing selectivity for RNA was found. As deduced by comparative analysis of Tm and NMR data, a relationship between pairing selectivity and conformational preferences of the "sugar" moiety of r-CNA (and more generally of six-membered nucleic acids) was suggested.
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Affiliation(s)
- Concetta Paolella
- Dipartimento di Scienze Chimiche, Università degli Studi di Napoli Federico II, via Cintia, 80126 Napoli, Italy.
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Anosova I, Kowal EA, Dunn MR, Chaput JC, Van Horn WD, Egli M. The structural diversity of artificial genetic polymers. Nucleic Acids Res 2015; 44:1007-21. [PMID: 26673703 PMCID: PMC4756832 DOI: 10.1093/nar/gkv1472] [Citation(s) in RCA: 106] [Impact Index Per Article: 11.8] [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: 09/27/2015] [Accepted: 11/30/2015] [Indexed: 11/13/2022] Open
Abstract
Synthetic genetics is a subdiscipline of synthetic biology that aims to develop artificial genetic polymers (also referred to as xeno-nucleic acids or XNAs) that can replicate in vitro and eventually in model cellular organisms. This field of science combines organic chemistry with polymerase engineering to create alternative forms of DNA that can store genetic information and evolve in response to external stimuli. Practitioners of synthetic genetics postulate that XNA could be used to safeguard synthetic biology organisms by storing genetic information in orthogonal chromosomes. XNA polymers are also under active investigation as a source of nuclease resistant affinity reagents (aptamers) and catalysts (xenozymes) with practical applications in disease diagnosis and treatment. In this review, we provide a structural perspective on known antiparallel duplex structures in which at least one strand of the Watson-Crick duplex is composed entirely of XNA. Currently, only a handful of XNA structures have been archived in the Protein Data Bank as compared to the more than 100 000 structures that are now available. Given the growing interest in xenobiology projects, we chose to compare the structural features of XNA polymers and discuss their potential to access new regions of nucleic acid fold space.
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Affiliation(s)
- Irina Anosova
- The Biodesign Institute, Virginia G. Piper Center for Personalized Diagnostics, School of Molecular Sciences, Magnetic Resonance Research Center, Arizona State University, Tempe, AZ 85287-5001, USA
| | - Ewa A Kowal
- Department of Biochemistry, Center for Structural Biology, and Vanderbilt Ingram Cancer Center, Vanderbilt University, School of Medicine, Nashville, TN 37232-0146, USA
| | - Matthew R Dunn
- Department of Pharmaceutical Sciences, University of California-Irvine, Irvine, CA 92697, USA
| | - John C Chaput
- Department of Pharmaceutical Sciences, University of California-Irvine, Irvine, CA 92697, USA
| | - Wade D Van Horn
- The Biodesign Institute, Virginia G. Piper Center for Personalized Diagnostics, School of Molecular Sciences, Magnetic Resonance Research Center, Arizona State University, Tempe, AZ 85287-5001, USA
| | - Martin Egli
- Department of Biochemistry, Center for Structural Biology, and Vanderbilt Ingram Cancer Center, Vanderbilt University, School of Medicine, Nashville, TN 37232-0146, USA
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Caso MF, D’Alonzo D, D’Errico S, Palumbo G, Guaragna A. Highly Stereoselective Synthesis of Lamivudine (3TC) and Emtricitabine (FTC) by a Novel N-Glycosidation Procedure. Org Lett 2015; 17:2626-9. [DOI: 10.1021/acs.orglett.5b00982] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Maria Federica Caso
- Dipartimento
di Scienze Chimiche, Università degli Studi di Napoli Federico II, Via Cintia 21, 80126 Napoli, Italy
| | - Daniele D’Alonzo
- Dipartimento
di Scienze Chimiche, Università degli Studi di Napoli Federico II, Via Cintia 21, 80126 Napoli, Italy
| | - Stefano D’Errico
- Dipartimento
di Farmacia, Università degli Studi di Napoli Federico II, Via D. Montesano 49, 80131 Napoli, Italy
| | - Giovanni Palumbo
- Dipartimento
di Scienze Chimiche, Università degli Studi di Napoli Federico II, Via Cintia 21, 80126 Napoli, Italy
| | - Annalisa Guaragna
- Dipartimento
di Scienze Chimiche, Università degli Studi di Napoli Federico II, Via Cintia 21, 80126 Napoli, Italy
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12
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D'Alonzo D, Froeyen M, Schepers G, Di Fabio G, Van Aerschot A, Herdewijn P, Palumbo G, Guaragna A. 1',5'-Anhydro-L-ribo-hexitol Adenine Nucleic Acids (α-L-HNA-A): Synthesis and Chiral Selection Properties in the Mirror Image World. J Org Chem 2015; 80:5014-22. [PMID: 25853790 DOI: 10.1021/acs.joc.5b00406] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The synthesis and a preliminary investigation of the base pairing properties of (6' → 4')-linked 1',5'-anhydro-L-ribo-hexitol nucleic acids (α-L-HNA) have herein been reported through the study of a model oligoadenylate system in the mirror image world. Despite its considerable preorganization due to the rigidity of the "all equatorial" pyranyl sugar backbone, α-L-HNA represents a versatile informational biopolymer, in view of its capability to cross-communicate with natural and unnatural complements in both enantiomeric forms. This seems the result of an inherent flexibility of the oligonucleotide system, as witnessed by the singular formation of iso- and heterochiral associations composed of regular, enantiomorphic helical structures. The peculiar properties of α-L-HNA (and most generally of the α-HNA system) provide new elements in our understanding of the structural prerequisites ruling the stereoselectivity of the hybridization processes of nucleic acids.
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Affiliation(s)
- Daniele D'Alonzo
- †Dipartimento di Scienze Chimiche, Università degli Studi di Napoli Federico II, via Cintia 21, 80126 Napoli, Italy
| | - Mathy Froeyen
- ‡Laboratory for Medicinal Chemistry, Rega Institute for Medical Research, KU Leuven, Minderbroedersstraat 10, 3000 Leuven, Belgium
| | - Guy Schepers
- ‡Laboratory for Medicinal Chemistry, Rega Institute for Medical Research, KU Leuven, Minderbroedersstraat 10, 3000 Leuven, Belgium
| | - Giovanni Di Fabio
- †Dipartimento di Scienze Chimiche, Università degli Studi di Napoli Federico II, via Cintia 21, 80126 Napoli, Italy
| | - Arthur Van Aerschot
- ‡Laboratory for Medicinal Chemistry, Rega Institute for Medical Research, KU Leuven, Minderbroedersstraat 10, 3000 Leuven, Belgium
| | - Piet Herdewijn
- ‡Laboratory for Medicinal Chemistry, Rega Institute for Medical Research, KU Leuven, Minderbroedersstraat 10, 3000 Leuven, Belgium
| | - Giovanni Palumbo
- †Dipartimento di Scienze Chimiche, Università degli Studi di Napoli Federico II, via Cintia 21, 80126 Napoli, Italy
| | - Annalisa Guaragna
- †Dipartimento di Scienze Chimiche, Università degli Studi di Napoli Federico II, via Cintia 21, 80126 Napoli, Italy
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13
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Paolella C, D'Alonzo D, Palumbo G, Guaragna A. Sulfur-assisted domino access to bicyclic dihydrofurans: case study and early synthetic applications. Org Biomol Chem 2013; 11:7825-9. [DOI: 10.1039/c3ob41324a] [Citation(s) in RCA: 8] [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: 12/26/2022]
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