1
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Synthesis and antiviral properties of biomimetic iminosugar-based nucleosides. Eur J Med Chem 2022; 241:114618. [DOI: 10.1016/j.ejmech.2022.114618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 07/13/2022] [Accepted: 07/14/2022] [Indexed: 11/22/2022]
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2
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Froeyen M, Abu el Asrar R, Abramov M, Herdewijn P. Molecular simulation of cyclohexanyl nucleic acid (CNA) duplexes with CNA, DNA and RNA and CNA triloop and tetraloop hairpin structures. Bioorg Med Chem 2016; 24:1778-85. [PMID: 26968651 DOI: 10.1016/j.bmc.2016.03.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Revised: 02/29/2016] [Accepted: 03/02/2016] [Indexed: 01/09/2023]
Abstract
As part of a selection strategy for artificial nucleic acids (XNA) (to be considered as potential new information systems in vivo), we have carried out a modelling study on cyclohexanyl nucleic acids (CNA) duplexes and hairpins. CNA may form a duplex as well as hairpin structures, having the carbocyclic nucleosides in the (4)C1 conformation (with equatorial basis). The geometry of ds CNA is close to that of a HNA:RNA duplex. We demonstrated that CNA triphosphates function as a substrate for polymerases. Modelling experiments indicate that the monomers are probably presented to the polymerase in the (1)C4 conformation.
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Affiliation(s)
- Matheus Froeyen
- KU Leuven, Rega Institute for Medical Research, Medicinal Chemistry, Minderbroedersstraat 10, 3000 Leuven, Belgium
| | - Rania Abu el Asrar
- KU Leuven, Rega Institute for Medical Research, Medicinal Chemistry, Minderbroedersstraat 10, 3000 Leuven, Belgium
| | - Mikhail Abramov
- KU Leuven, Rega Institute for Medical Research, Medicinal Chemistry, Minderbroedersstraat 10, 3000 Leuven, Belgium
| | - Piet Herdewijn
- KU Leuven, Rega Institute for Medical Research, Medicinal Chemistry, Minderbroedersstraat 10, 3000 Leuven, Belgium.
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3
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Brel VK, Samet AV, Konyushkin LD, Stash AI, Belsky VK, Semenov VV. Levoglucosenone-derived precursors for the stereoselective synthesis of methylene-expanded analogues of C-nucleosides. MENDELEEV COMMUNICATIONS 2015. [DOI: 10.1016/j.mencom.2015.01.016] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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4
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Synthesis and Anti-HIV Activity of Triazolo-Fused, Medium-Sized Cyclic Nucleoside Analogs Prepared by an IntramolecularHuisgen1,3-Dipolar Cycloaddition. Helv Chim Acta 2014. [DOI: 10.1002/hlca.201300289] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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5
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Dalençon S, Youcef RA, Pipelier M, Maisonneuve V, Dubreuil D, Huet F, Legoupy S. Asymmetric Synthesis of Cyclohexene Nucleoside Analogues. J Org Chem 2011; 76:8059-63. [DOI: 10.1021/jo2012708] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sylvain Dalençon
- UCO2M, UMR CNRS 6011, Faculté de Sciences et Techniques, Université du Maine, Avenue Olivier Messiaen, 72085 Le Mans Cedex 9, France
| | - Ramzi Aït Youcef
- UCO2M, UMR CNRS 6011, Faculté de Sciences et Techniques, Université du Maine, Avenue Olivier Messiaen, 72085 Le Mans Cedex 9, France
| | - Muriel Pipelier
- Laboratoire de Chimie et Interdisciplinarité: Synthèse, Analyse, Modélisation (CEISAM), UMR CNRS 6230, Université de Nantes, 2 rue de la Houssinière, BP 92208, 44322 Nantes Cedex 3, France
| | - Vincent Maisonneuve
- Laboratoire des Oxydes et Fluorures, UMR CNRS 6010, Université du Maine, 72085 Le Mans Cedex 9, France
| | - Didier Dubreuil
- Laboratoire de Chimie et Interdisciplinarité: Synthèse, Analyse, Modélisation (CEISAM), UMR CNRS 6230, Université de Nantes, 2 rue de la Houssinière, BP 92208, 44322 Nantes Cedex 3, France
| | - François Huet
- UCO2M, UMR CNRS 6011, Faculté de Sciences et Techniques, Université du Maine, Avenue Olivier Messiaen, 72085 Le Mans Cedex 9, France
| | - Stéphanie Legoupy
- UCO2M, UMR CNRS 6011, Faculté de Sciences et Techniques, Université du Maine, Avenue Olivier Messiaen, 72085 Le Mans Cedex 9, France
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6
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Kiritsis C, Manta S, Parmenopoulou V, Balzarini J, Komiotis D. Branched-chain C-cyano pyranonucleosides: synthesis of 3'-C-cyano & 3'-C-cyano-3'-deoxy pyrimidine pyranonucleosides as novel cytotoxic agents. Eur J Med Chem 2011; 46:5668-74. [PMID: 21917363 PMCID: PMC7115479 DOI: 10.1016/j.ejmech.2011.08.033] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2011] [Revised: 08/22/2011] [Accepted: 08/23/2011] [Indexed: 11/30/2022]
Abstract
This report describes the total and facile synthesis of 3′-C-cyano & 3′-C-cyano-3′-deoxy pyrimidine pyranonucleosides. Reaction of 3-keto glucoside 1 with sodium cyanide gave the desired precursor 3-C-cyano-1,2:5,6-di-O-isopropylidene-α-D-glucofuranose (2). Hydrolysis followed by acetylation led to the 1,2,3,4,6-penta-O-acetyl-3-C-cyano-D-glucopyranose (4). Compound 4 was condensed with silylated 5-fluorouracil, uracil, thymine and N4-benzoylcytosine, respectively and deacetylated to afford the target 1-(3′-C-cyano-β-D-glucopyranosyl)nucleosides 6a–d. Routine deoxygenation at position 3′ of cyanohydrin 2, followed by hydrolysis and acetylation led to the 3-C-cyano-3-deoxy-1,2,4,6-tetra-O-acetyl-D-allopyranose (10). Coupling of sugar 10 with silylated pyrimidines and subsequent deacetylation yielded the target 1-(3′-C-cyano-3′-deoxy-β-D-allopyranosyl)nucleosides 12a–d. The new analogues were evaluated for their antiviral and cytostatic activities. It was found that 6a was endowed with a pronounced anti-proliferative activity that was only 2- to 8-fold less potent than that shown for the parental base 5-fluorouracil. None of the compounds showed activity against a broad panel of DNA and RNA viruses.
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Affiliation(s)
- Christos Kiritsis
- Department of Biochemistry and Biotechnology, Laboratory of Bio-Organic Chemistry, University of Thessaly, 26 Ploutonos Str., 41221 Larissa, Greece
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7
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8
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Synthesis and biological evaluation of unsaturated keto and exomethylene d-arabinopyranonucleoside analogs: Novel 5-fluorouracil analogs that target thymidylate synthase. Eur J Med Chem 2011; 46:993-1005. [DOI: 10.1016/j.ejmech.2011.01.005] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2010] [Revised: 10/06/2010] [Accepted: 01/06/2011] [Indexed: 11/18/2022]
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9
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Efficient synthesis of exomethylene- and keto-exomethylene-d-glucopyranosyl nucleoside analogs as potential cytotoxic agents. Carbohydr Res 2011; 346:328-33. [DOI: 10.1016/j.carres.2010.10.019] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2010] [Accepted: 10/26/2010] [Indexed: 01/12/2023]
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10
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Wang Q, Sun X, Zheng J, Tang Y. A Tandem Intramolecular Michael Addition/Wittig Reaction for the Synthesis of Fused Cyclohexadiene Derivatives. CHINESE J CHEM 2010. [DOI: 10.1002/cjoc.201090274] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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11
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Abstract
Starting from pyranose nucleic acids, several series of modified nucleic acids with a six-membered carbohydrate moiety (mimic) have been synthesized and analyzed over a period of 20 years, and this work is summarized here. The process starts with structural and conformational considerations, followed by synthetic efforts and a structural analysis, and ends up with a biological confirmation of the concept, demonstrating that these modified nucleic acids represent very valuable tools in chemistry and biology.
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Affiliation(s)
- Piet Herdewijn
- Laboratory for Medicinal Chemistry, Rega Institute for Medical Research, Minderbroedersstraat 10, B-3000 Leuven.
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12
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Synthesis of 4,6-dideoxy-3-fluoro-2-keto-β-d-glucopyranosyl analogues of 5-fluorouracil, N6-benzoyl adenine, uracil, thymine, N4-benzoyl cytosine and evaluation of their antitumor activities. Bioorg Chem 2010; 38:48-55. [DOI: 10.1016/j.bioorg.2009.11.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2009] [Revised: 11/09/2009] [Accepted: 11/11/2009] [Indexed: 11/23/2022]
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13
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Šála M, Hřebabecký H, Dračínský M, Masojídková M, De Palma AM, Neyts J, Holý A. Synthesis of novel racemic carbocyclic nucleosides derived from 5,6-disubstituted norbornene. ACTA ACUST UNITED AC 2009. [DOI: 10.1135/cccc2009116] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Novel class of the carbocyclic nucleosides based on bicyclo[2.2.1]heptene/heptane was prepared by two approaches. Thymine analogues were synthesized starting from methyl (1R*,4S*)-bicyclo[2.2.1]hepta-2,5-diene-2-carboxylate1by Michael addition of the thymine salt to the double bond as the key step. The yield and ratio of the isomers of this reaction depended on the used base (DBU, K2CO3). Purine nucleoside analogues were synthesized by the linear synthesis, the purine nucleobase was build-up on the amino group. The amino groups (exo/endoconfiguration) were introduced to the scaffold by the Curtius rearrangement. Norbornene analogues were converted to saturated andcis-hydroxylated nucleoside derivatives. [(1R*,2S*,3S*,4S*)-3-(6-Chloro-9H-purin-9-yl)bicyclo[2.2.1]hept-5-en-2-yl]methanol (13a) and [(1R*,2R*,3R*,4S*)-3-(6-chloro-9H-purin-9-yl)bicyclo[2.2.1]hept-5-en-2-yl]methanol (13b) showed moderate activity againstCoxsackievirus CVB3.
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14
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Tzioumaki N, Tsoukala E, Manta S, Agelis G, Balzarini J, Komiotis D. Synthesis, Antiviral and Cytostatic Evaluation of Unsaturated Exomethylene and Keto D‐Lyxopyranonucleoside Analogues. Arch Pharm (Weinheim) 2009; 342:353-60. [DOI: 10.1002/ardp.200900004] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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15
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Ye LW, Wang SB, Wang QG, Sun XL, Tang Y, Zhou YG. Asymmetric tandem Michael addition-ylide olefination reaction for the synthesis of optically active cyclohexa-1,3-diene derivatives. Chem Commun (Camb) 2009:3092-4. [PMID: 19462097 DOI: 10.1039/b900048h] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reaction of a crotonate-derived chiral phosphonium salt with alpha,beta-unsaturated carbonyl compounds in the presence of Cs(2)CO(3) affords optically active cyclohexa-1,3-diene derivatives with up to 90% ee in good yields.
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Affiliation(s)
- Long-Wu Ye
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
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16
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Chattopadhyaya J, Zhou C, Plashkevych O, Liu Y, Badgujar N. Synthesis and Structure of New Methylene-Bridged Hexopyranosyl Nucleoside (BHNA). HETEROCYCLES 2009. [DOI: 10.3987/com-09-11660] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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17
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Ye LW, Han X, Sun XL, Tang Y. Tandem Michael addition/ylide olefination reaction for the synthesis of highly functionalized cyclohexadiene derivatives. Tetrahedron 2008. [DOI: 10.1016/j.tet.2008.06.048] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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18
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Synthesis and molecular modelling of unsaturated exomethylene pyranonucleoside analogues with antitumor and antiviral activities. Eur J Med Chem 2008; 43:1366-75. [DOI: 10.1016/j.ejmech.2007.10.014] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2007] [Accepted: 10/12/2007] [Indexed: 11/17/2022]
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19
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Tsoukala E, Manta S, Tzioumaki N, Agelis G, Komiotis D. A concise synthesis of 3-fluoro-5-thio-xylo- and glucopyranoses, useful precursors towards their corresponding pyranonucleoside derivatives. Carbohydr Res 2008; 343:1099-103. [PMID: 18313037 DOI: 10.1016/j.carres.2008.02.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2007] [Revised: 02/01/2008] [Accepted: 02/04/2008] [Indexed: 11/19/2022]
Abstract
The chemical synthesis of 1,2,4-tri-O-acetyl-3-deoxy-3-fluoro-5-thio-D-xylopyranose, 1,2,4,6-tetra-O-acetyl-3-deoxy-3-fluoro-5-thio-alpha-D-glucopyranose and their corresponding nucleosides of thymine is described. Treatment of 3-fluoro-5-S-acetyl-5-thio-D-xylofuranose, obtained by hydrolysis of the isopropylidene group of 3-fluoro-1,2-O-isopropylidene-5-S-acetyl-5-thio-D-xylofuranose, with methanolic ammonia and direct acetylation, led to triacetylated 3-deoxy-3-fluoro-5-thio-D-xylopyranose. Condensation of acetylated 3-fluoro-5-thio-D-xylopyranose with silylated thymine afforded the corresponding nucleoside. Selective benzoylation and direct methanesulfonylation of 3-fluoro-1,2-O-isopropylidene-alpha-D-glucofuranose gave the 6-O-benzoyl-5-O-methylsulfonyl derivative, which on treatment with sodium methoxide afforded the 5,6-anhydro derivative. Treatment of the latter with thiourea, followed by acetolysis, gave the 3-fluoro-5-S-acetyl-6-O-acetyl-1,2-O-isopropylidene-5-thio-alpha-D-glucofuranose. 3-fluoro-5-S-acetyl-6-O-acetyl-5-thio-D-glucofuranose, obtained after hydrolysis of 5-thiofuranose isopropylidene, was treated with ammonia in methanol and directly acetylated, giving tetraacetylated 3-deoxy-3-fluoro-5-thio-alpha-D-glucopyranose. Condensation of the latter with silylated thymine afforded the desired 3-deoxy-3-fluoro-5-thio-beta-D-glucopyranonucleoside analogue.
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Affiliation(s)
- Evangelia Tsoukala
- Department of Biochemistry and Biotechnology, Laboratory of Organic Chemistry, University of Thessaly, 26 Ploutonos Str., GR-41221 Larissa, Greece
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Manta S, Agelis G, Botić T, Cencic A, Komiotis D. Unsaturated fluoro-ketopyranosyl nucleosides: Synthesis and biological evaluation of 3-fluoro-4-keto-β-d-glucopyranosyl derivatives of N4-benzoyl cytosine and N6-benzoyl adenine. Eur J Med Chem 2008; 43:420-8. [PMID: 17548129 DOI: 10.1016/j.ejmech.2007.04.001] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2007] [Revised: 04/04/2007] [Accepted: 04/05/2007] [Indexed: 10/23/2022]
Abstract
The protected beta-nucleosides 1-(2,4,6-tri-O-acetyl-3-deoxy-3-fluoro-beta-d-glucopyranosyl)-N(4)-benzoyl cytosine (2a) and 9-(2,4,6-tri-O-acetyl-3-deoxy-3-fluoro-beta-d-glucopyranosyl)-N(6)-benzoyl adenine (2b), were synthesized by the coupling of peracetylated 3-deoxy-3-fluoro-d-glucopyranose (1) with silylated N(4)-benzoyl cytosine and N(6)-benzoyl adenine, respectively. The nucleosides were deacetylated and several subsequent protection and deprotection steps afforded the partially acetylated nucleosides of cytosine 7a and adenine 7b, respectively. Finally, direct oxidation of the free hydroxyl group at 4'-position of 7a and 7b, and simultaneous elimination reaction of the beta-acetoxyl group, afforded the desired unsaturated 3-fluoro-4-keto-beta-d-glucopyranosyl derivatives. These newly synthesized compounds were evaluated for their potential antitumor and antiviral activities. Compared to 5FU, the newly synthesized derivatives showed to be more efficient as antitumor growth inhibitors and they exhibited direct antiviral effect toward rotavirus.
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Affiliation(s)
- Stella Manta
- Department of Biochemistry and Biotechnology, Laboratory of Organic Chemistry, University of Thessaly, 26 Ploutonos Street, 41221 Larissa, Greece
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21
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22
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Agelis G, Tzioumaki N, Botić T, Cencic A, Komiotis D. Exomethylene pyranonucleosides: Efficient synthesis and biological evaluation of 1-(2,3,4-trideoxy-2-methylene-β-d-glycero-hex-3-enopyranosyl)thymine. Bioorg Med Chem 2007; 15:5448-56. [PMID: 17555969 DOI: 10.1016/j.bmc.2007.05.055] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2006] [Revised: 05/22/2007] [Accepted: 05/23/2007] [Indexed: 11/16/2022]
Abstract
A new series of unsaturated pyranonucleosides with an exocyclic methylene group and thymine as heterocyclic base have been designed and synthesized. d-Galactose (1) was readily transformed in three steps into the corresponding 1-(beta-d-galactopyranosyl)thymine (2). Selective protection of the primary hydroxyl group of 2 with a t-butyldimethylsilyl (TBDMS) group, followed by specific acetalation, and oxidation gave 1-(6-O-t-butyldimethylsilyl-3,4-O-isopropylidene-beta-d-lyxo-hexopyranosyl-2-ulose)thymine (5). Wittig reaction of the ketonucleoside 5, deprotection and tritylation of the 6'-hydroxyl group gave 1-(2-deoxy-2-methylene-6-O-trityl-beta-d-lyxo-hexopyranosyl)thymine (9). Exomethylene pyranonucleoside 9 was converted to the olefinic derivative 10, which after detritylation afforded the title compound 1-(2,3,4-trideoxy-2-methylene-beta-d-glycero-hex-3-enopyranosyl)thymine (11). These novel synthesized compounds were evaluated for antiviral activity against rotaviral infection and cytotoxicity in colon cancer. As compared to AZT, compounds 1-(2-deoxy-2-methylene-beta-d-lyxo-hexopyranosyl)thymine (7) and 1-(beta-d-lyxo-hexopyranosyl-2-ulose)thymine (8) showed to be more efficient, in rotavirus infections and in treatment of colon cancer.
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Affiliation(s)
- George Agelis
- Department of Biochemistry and Biotechnology, Laboratory of Organic Chemistry, University of Thessaly, 26 Ploutonos Street, 41221 Larissa, Greece
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23
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Antioxidant Activity of a Series of FluorinatedPyrano-nucleoside Analogues of N4-benzoyl Cytosine andN6-benzoyl Adenine. Int J Mol Sci 2007. [DOI: 10.3390/i8070695] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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24
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Manta S, Agelis G, Botić T, Cencic A, Komiotis D. Fluoro-ketopyranosyl nucleosides: synthesis and biological evaluation of 3-fluoro-2-keto-beta-D-glucopyranosyl derivatives of N4-benzoyl cytosine. Bioorg Med Chem 2006; 15:980-7. [PMID: 17079149 DOI: 10.1016/j.bmc.2006.10.033] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2006] [Revised: 10/09/2006] [Accepted: 10/17/2006] [Indexed: 11/24/2022]
Abstract
1,2:5,6-Di-O-isopropylidene-alpha-d-glucofuranose on mild oxidation, reduction, fluorination, and deisopropylidenation followed by acetylation gave peracetylated 3-deoxy-3-fluoro-d-glucopyranose. This was coupled with silylated N(4)-benzoyl cytosine. The nucleoside was deacetylated and after several subsequent protection and deprotection steps afforded the desired 3-fluoro-2-keto-beta-d-glucopyranosyl derivatives. These novel synthesized compounds were evaluated for antiviral and cytotoxic activities against rotavirus, vesicular stomatitis virus, and the human colon adenocarcinoma cell line Caco-2, and have a promising potential in combating the rotaviral infections and in the treatment of colon cancer. As compared to AZT, a nucleoside analogue of reverse transcriptase inhibitor, the novel synthesized 1-(3,4-dideoxy-3-fluoro-beta-d-glycero-hex-3-enopyranosyl-2-ulose)-N(4)-benzoyl cytosine showed to be more effective at lower concentrations in inhibition of rotavirus infection as well as in the same range of antitumor activity.
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Affiliation(s)
- Stella Manta
- Department of Biochemistry and Biotechnology, Laboratory of Organic Chemistry, University of Thessaly, Larissa, Greece
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25
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Zhan TR, Ma YD, Fan PH, Ji M, Lou HX. Synthesis of 4/5-Deoxy-4/5-nucleobase Derivatives of 3-O-Methyl-D-chiro-inositol as Potential Antiviral Agents. Chem Biodivers 2006; 3:1126-37. [PMID: 17193227 DOI: 10.1002/cbdv.200690114] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Using D-pinitol (= 3-O-methyl-D-chiro-inositol) as starting material, a concise synthesis of 4/5-deoxy-4/5-nucleobase derivatives 11-19 has been achieved. The key intermediate 9 was obtained in good yield via an epoxidation from mono-methanesulfonate of D-pinitol. The process of opening of the epoxide ring in 9 by nucleobases appeared to be regioselective in presence of 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU). All the synthesized carbocyclic nucleosides were assayed against several viruses and tumors such as HIV-1, HSV-1, and HSV-2, and lung and bladder cancer. However, only compounds 14b, 14a, 16a, 16b, and 19 showed mild inhibitory effect against human lung cancer cell lines (PG) with IC50 values ranging from 50 to 100 microM, and the other compounds did not exhibit any significant antiviral activity or cytotoxicity even at concentrations up to 200 microM.
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Affiliation(s)
- Tian-Rong Zhan
- School of Pharmaceutical Sciences, Shandong University, No.44 West Wenhua Road, Jinan 250012, P.R. China
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Šála M, Hřebabecký H, Masojídková M, Holý A. Synthesis of Novel Racemic Conformationally Locked Carbocyclic Nucleosides Derived from 7-Substituted Bicyclo[2.2.1]hept-5-ene-2,2-dimethanols. ACTA ACUST UNITED AC 2006. [DOI: 10.1135/cccc20060635] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
(1R*,4R*,7S*)-7-Aminobicyclo[2.2.1]hept-5-ene-2,2-dimethanol (15) was prepared in four easy steps from bicyclo[2.2.1]hept-5-ene-2,2-dimethanol (10). Reaction of amine 15 with ethyl N-((E)-3-ethoxymethacryloyl)carbamate afforded thymine derivatives 17a. The amine 15 was used to construct 6-chloro-9H-purine derivative 19a, 2-amino-6-chloro-9H-purine derivative 22a. Ammonolysis of 19a led to the adenine derivative 20a. Treatment of 22a with trifluoroacetic acid afforded guanine nucleoside 23a. (1R*,4R*,7S*)-7-[6-(Cyclopropylamino)-9H-purin-9-yl]bicyclo[2.2.1]hept-5-ene-2,2-dimethanol (21a) and (1R*,4R*,7S*)-7-[2-amino-6-(cyclopropylamino)-9H-purin-9-yl]bicyclo[2.2.1]hept-5-ene-2,2-dimethanol (24a) were prepared by aminolysis of 19a and 22a. Saturated nucleosides 17b, 20b, 21b, 23b, 24b were obtained by hydrogenation on palladium catalyst.
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Bialy L, Díaz-Mochón JJ, Specker E, Keinicke L, Bradley M. Dde-protected PNA monomers, orthogonal to Fmoc, for the synthesis of PNA–peptide conjugates. Tetrahedron 2005. [DOI: 10.1016/j.tet.2005.06.003] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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28
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Polymethylene Derivatives of Nucleic Bases with ω-Functional Groups: IV. [7-(2-Oxocyclohexyl)-7-oxoheptyl]purines. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2005. [DOI: 10.1007/s11171-005-0035-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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29
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Barral K, Courcambeck J, Pèpe G, Balzarini J, Neyts J, De Clercq E, Camplo M. Synthesis and Antiviral Evaluation of Cis-Substituted Cyclohexenyl and Cyclohexanyl Nucleosides. J Med Chem 2005; 48:450-6. [PMID: 15658858 DOI: 10.1021/jm0493966] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Starting from commercially available (rac)-3-cyclohexene-1-carboxylic acid, a series of purine and pyrimidine cis-substituted cyclohexenyl and cyclohexanyl nucleosides were synthesized through a key Mitsunobu reaction. Antiviral evaluations were performed on HIV, coxsackie B3, and herpes viruses (HSV-1, HSV-2, VZV, HCMV). Three compounds showed moderate activity against HSV-1 and coxsackie viruses. Specific computer modeling studies were performed on HSV-1 thymidine kinase in order to understand the enzyme activation of an analogue showing moderate antiviral activity.
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Affiliation(s)
- Karine Barral
- Laboratoire des Matériaux Moléculaires et des Biomatériaux, GCOM2, UMR CNRS 6114, Université de la Méditerranée, case 901, 163 av. de Luminy, 13288 Marseille Cedex 9, France
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30
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31
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Vanheusden V, Busson R, Herdewijn P, Van Calenbergh S. Synthesis and Conformational Analysis of 1-[2,4-Dideoxy-4-C-hydroxymethyl-α-l-lyxopyranosyl]thymine. J Org Chem 2004; 69:4446-53. [PMID: 15202900 DOI: 10.1021/jo040130g] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Previously different types of nucleosides with a six-membered carbohydrate moiety have been evaluated for their potential antiviral and antibiotic properties and as building blocks in nucleic acid synthesis. However, a pyranose nucleoside with a 1,4-substitution pattern like 1-[2,4-dideoxy-4-C-hydroxymethyl-alpha-l-lyxopyranosyl]thymine (4) has not been studied yet. Modeling suggested that this nucleoside would show the (4)C(1) conformation in contrast to anhydrohexitol nucleosides (1) whose most stable conformation is (1)C(4). The key to the synthesis of 4 involves the stereoselective introduction of the hydroxymethyl group onto the C-4 carbon of the pyranose sugar. Attempts to achieve this via hydroboration/oxidation of a C-4'-exocyclic vinylic intermediate selectively yielded the undesired alpha-directed hydroxymethyl group. Therefore, we envisaged another approach in which the C-4 substituent was introduced upon treatment of 2,3-O-isopropylidene-1-O-methyl-4-O-phenoxythiocarbonyl-alpha-l-lyxopyranose with beta-tributylstannyl styrene. This allowed stereoselective beta-directed introduction of a 2-phenylethenyl group at C-4, which was converted via oxidation/reduction (OsO(4), NaIO(4)/NaBH(4)) into the desired 4-hydroxymethyl group (20). The resulting 1-O-methyl-2,3,6-tri-O-acetyl-protected sugar was coupled with silylated thymine, using SnCl(2) as Lewis acid (22). After suitable protection, Barton deoxygenation of the 2'-hydroxyl function of the obtained ribo-nucleoside yielded the desired 2'-deoxynucleoside 4, indeed showing the expected equatorial orientation of the thymine ring ((4)C(1)).
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Affiliation(s)
- Veerle Vanheusden
- Laboratory for Medicinal Chemistry (FFW), Ghent University, Harelbekestraat 72, 9000 Gent, Belgium
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32
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Gu P, Morral J, Wang J, Rozenski J, Busson R, Van Aerschot A, De Clercq E, Herdewijn P. Synthesis and antiviral activity of a series of new cyclohexenyl nucleosides. Antivir Chem Chemother 2003; 14:31-7. [PMID: 12790514 DOI: 10.1177/095632020301400103] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
A series of new cyclohexenyl nucleosides is synthesized by coupling the heterocyclic bases with a protected cyclohexenyl precursor under Mitsunobu conditions. The compounds were evaluated for their antiviral and cytostatic activity. Pronounced activity against herpes simplex virus type 1 and type 2 was observed for the 2,6-diaminopurine analogue.
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Affiliation(s)
- Ping Gu
- Laboratory of Medicinal Chemistry, Rega Institute for Medical Research, Katholieke Universiteit Leuven, Leuven, Belgium
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33
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Affiliation(s)
- D J Hill
- Department of Chemistry and Materials Science & Engineering, The Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
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34
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Kozlov IA, Politis PK, Pitsch S, Herdewijn P, Orgel LE. A highly enantio-selective hexitol nucleic acid template for nonenzymatic oligoguanylate synthesis. J Am Chem Soc 2001; 121:1108-9. [PMID: 11541447 DOI: 10.1021/ja9836489] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- I A Kozlov
- Salk Institute for Biological Studies, San Diego, California 92186, USA
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35
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Herdewijn P, De Clercq E. The cyclohexene ring as bioisostere of a furanose ring: synthesis and antiviral activity of cyclohexenyl nucleosides. Bioorg Med Chem Lett 2001; 11:1591-7. [PMID: 11412988 DOI: 10.1016/s0960-894x(01)00270-0] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The application of the bioisosteric concept between a furanose ring and a cyclohexene ring in the nucleoside field has led to the discovery of new potent antiviral agents.
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Affiliation(s)
- P Herdewijn
- Laboratory of Medicinal Chemistry, K.U. Leuven, Rega Institute for Medical Research, Minderbroedersstraat 10, B-3000 Leuven, Belgium.
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36
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Gauvry N, Huet F. A short stereoselective preparation of dienamides from cyclobutene compounds. Application in the synthesis of a new cyclohexene nucleoside. J Org Chem 2001; 66:583-8. [PMID: 11429833 DOI: 10.1021/jo001467v] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A short stereoselective synthesis of N-acylamino-1,3-dienes was developed starting from the cyclobutene lactam 8, which was obtained from 2-hydroxypyridine by a photochemical electrocyclic reaction. The tert-butoxycarbonyl derivative 17 was prepared to facilitate nucleophilic attacks to the carbonyl group, and the subsequent thermal ring opening provided dienes 18-21. One of these (20) was used in the synthesis of the cyclohexene nucleoside 30. A Diels-Alder reaction between diene 20 and maleic anhydride provided the endo-cycloadduct 22a. Three additional steps yielded amine 26. Construction of the uracil moiety afforded intermediate 29. Cyclization and removal of the protecting groups occurred in one step in the presence of ammonia, giving the target molecule 30. Diene 20 also underwent [4 + 2] cycloaddition with methyl acrylate to provide predominantly the endo-product 23a, regioselectively.
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Affiliation(s)
- N Gauvry
- Laboratoire de Synthèse Organique, UMR CNRS 6011, Faculté des Sciences, Université du Maine, Avenue Olivier Messiaen, F-72085 Le Mans, France
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37
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Polymethylene derivatives of pyrimidine nucleic bases bearing ω-functional groups. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2000. [DOI: 10.1007/bf02821834] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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38
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Zhu XF. The latest progress in the synthesis of carbocyclic nucleosides. NUCLEOSIDES, NUCLEOTIDES & NUCLEIC ACIDS 2000; 19:651-90. [PMID: 10843500 DOI: 10.1080/15257770008035015] [Citation(s) in RCA: 79] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
This review presents the latest developments in the field of carba-nucleosides (1994-1998). Special attention is paid to the synthesis of key precursors to those carba-nucleosides that possess significant biological activities or have novel structures.
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Affiliation(s)
- X F Zhu
- Department of Chemistry, Texas A & M University, College Station 77842-3012, USA
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39
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Wang J, Froeyen M, Hendrix C, Andrei G, Snoeck R, De Clercq E, Herdewijn P. The cyclohexene ring system as a furanose mimic: synthesis and antiviral activity of both enantiomers of cyclohexenylguanine. J Med Chem 2000; 43:736-45. [PMID: 10691698 DOI: 10.1021/jm991171l] [Citation(s) in RCA: 71] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Both enantiomers of cyclohexenylguanine were synthesized in a stereospecific way starting from the same starting material: R-(-)-carvone. Both compounds showed potent and selective anti-herpesvirus activity (HSV-1, HSV-2, VZV, CMV). The binding of both cyclohexene nucleosides in the active site of HSV-1 thymidine kinase was investigated, and a model for the binding of both enantiomers is proposed. The amino acids involved in binding of the optical antipodes are the same, but the interaction energy of both enantiomers is slightly different. This may be attributed to the interaction of the secondary hydroxyl function of the nucleoside analogues with Glu-225. Structural analysis has demonstrated the flexibility of the cyclohexenyl system, and this may be considered as an important conformational characteristic explaining the potent antiviral activity.
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Affiliation(s)
- J Wang
- Laboratories of Medicinal Chemistry and of Virology and Chemotherapy, Rega Institute for Medical Research, Minderbroedersstraat 10, B-3000 Leuven, Belgium
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40
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Herdewijn P. Conformationally restricted carbohydrate-modified nucleic acids and antisense technology. BIOCHIMICA ET BIOPHYSICA ACTA 1999; 1489:167-79. [PMID: 10807006 DOI: 10.1016/s0167-4781(99)00152-9] [Citation(s) in RCA: 103] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The study of conformationally restricted carbohydrate modified nucleic acids has given new insights into the concept of the antisense technology. We learned to understand the structural requirements of a modified nucleic acid to function as steric blocker for RNA. Several of the physicochemical and conformational factors influencing duplex stabilization are analyzed with respect to their relative importance for the antisense field.
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Affiliation(s)
- P Herdewijn
- Rega Institute for Medical Research, Katholieke Universiteit Leuven, Belgium.
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41
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Wang J, Herdewijn P. Enantioselective Synthesis and Conformational Study of Cyclohexene Carbocyclic Nucleosides. J Org Chem 1999. [DOI: 10.1021/jo9908288] [Citation(s) in RCA: 47] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jing Wang
- Laboratory of Medicinal Chemistry, Rega Institute for Medical Research, Katholieke Universiteit Leuven, Minderbroedersstraat 10, B-3000 Leuven, Belgium
| | - Piet Herdewijn
- Laboratory of Medicinal Chemistry, Rega Institute for Medical Research, Katholieke Universiteit Leuven, Minderbroedersstraat 10, B-3000 Leuven, Belgium
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42
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Wouters J, Herdewijn P. 5-Substituted pyrimidine 1,5-anhydrohexitols: conformational analysis and interaction with viral thymidine kinase. Bioorg Med Chem Lett 1999; 9:1563-6. [PMID: 10386936 DOI: 10.1016/s0960-894x(99)00225-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Conformational analysis of anhydrohexitol nucleosides using a combination of experimental (X-ray crystallography) and computational methods indicates that those antiviral compounds occur in an equilibrium between two forms, one conformation being adopted in solid phase and in solution, the other found when the nucleosides are in complex with HSV-1 thymidine kinase. The conformational change induced by the enzyme has been investigated.
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Affiliation(s)
- J Wouters
- Facultés Universitaires Notre-Dame de la Paix, Namur (Belgium).
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43
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Wang J, Herdewijn P. A Novel and Enantioselective Approach to the Synthesis of Cyclohexane Carbocyclic Nucleosides Starting from (-)-Carvone. ACTA ACUST UNITED AC 1999. [DOI: 10.1080/15257779908041504] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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44
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Wang J, Herdewijn P. Enantioselective Synthesis and Conformational Analysis of Cyclohexene Carbocyclic Nucleosides. ACTA ACUST UNITED AC 1999. [DOI: 10.1080/15257779908041505] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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45
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Kozlov IA, Politis PK, Van Aerschot A, Busson R, Herdewijn P, Orgel LE. Nonenzymatic synthesis of RNA and DNA oligomers on hexitol nucleic acid templates: the importance of the A structure. J Am Chem Soc 1999; 121:2653-6. [PMID: 11543583 DOI: 10.1021/ja983958r] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Hexitol nucleic acid (HNA) is an analogue of DNA containing the standard nucleoside bases, but with a phosphorylated 1,5-anhydrohexitol backbone. HNA oligomers form duplexes having the nucleic acid A structure with complementary DNA or RNA oligomers. The HNA decacytidylate oligomer is an efficient template for the oligomerization of the 5'-phosphoroimidazolides of guanosine or deoxyguanosine. Comparison of the oligomerization efficiencies on HNA, RNA, and DNA decacytidylate templates under various conditions suggests strongly that only nucleic acid double helices with the A structure support efficient template-directed synthesis when 5'-phosphoroimidazolides of nucleosides are used as substrates.
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Affiliation(s)
- I A Kozlov
- Salk Institute for Biological Studies, San Diego, California 92186, USA
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46
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Hossain N, Luyten I, Rothenbacher K, Busson R, Herdewijn P. Synthesis and Conformational Analysis of 1,5-Anhydro-2,4-dideoxy-D-mannitol Nucleosides. ACTA ACUST UNITED AC 1999. [DOI: 10.1080/15257779908043064] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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47
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Ostrowski T, Wroblowski B, Busson R, Rozenski J, De Clercq E, Bennett MS, Champness JN, Summers WC, Sanderson MR, Herdewijn P. 5-Substituted pyrimidines with a 1,5-anhydro-2, 3-dideoxy-D-arabino-hexitol moiety at N-1: synthesis, antiviral activity, conformational analysis, and interaction with viral thymidine kinase. J Med Chem 1998; 41:4343-53. [PMID: 9784109 DOI: 10.1021/jm980287z] [Citation(s) in RCA: 46] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A new series of anhydrohexitol nucleosides are described. These compounds have a pyrimidine base moiety substituted in the 5-position with a chloro (1b), trifluoromethyl (1c), vinyl (1d), 2-thienyl (1e), ethynyl (1f) or propynyl (1g) substituent. The vinyl, propynyl, and, in particular, the 5-trifluoromethyl analogue showed potent activity against herpes simplex virus (HSV), 1c with a selectivity index of >16000 against HSV-1 and >1000 against HSV-2. Conformational analysis of anhydrohexitol nucleosides using computational methods indicates that these nucleosides occur in an equilibrium between the C1 and 1C form with a DeltaE of 5.9 kJ/mol. When the anhydrohexitol nucleoside is cocrystallized with the HSV-1 thymidine kinase it adopts a 1C conformation, which is opposite to the conformation found for the small molecule alone. The enzyme, apparently, induces a conformational change, and conformational flexibility of an anhydrohexitol nucleoside may be advantageous for recognition by viral enzymes.
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Affiliation(s)
- T Ostrowski
- Rega Institute for Medical Research, K.U.Leuven, Minderbroedersstraat 10, B-3000 Leuven, Belgium
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48
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Cadet G, Chan CS, Daniel RY, Davis CP, Guiadeen D, Rodriguez G, Thomas T, Walcott S, Scheiner P. Ring-Expanded Nucleoside Analogues. 1,3-Dioxan-5-yl Pyrimidines. J Org Chem 1998. [DOI: 10.1021/jo9715231] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Gina Cadet
- Department of Natural Science, York College, City University of New York, Jamaica, New York 11451
| | - Ching-See Chan
- Department of Natural Science, York College, City University of New York, Jamaica, New York 11451
| | - Rose Y. Daniel
- Department of Natural Science, York College, City University of New York, Jamaica, New York 11451
| | - Claudette P. Davis
- Department of Natural Science, York College, City University of New York, Jamaica, New York 11451
| | - Deodialsingh Guiadeen
- Department of Natural Science, York College, City University of New York, Jamaica, New York 11451
| | - George Rodriguez
- Department of Natural Science, York College, City University of New York, Jamaica, New York 11451
| | - Tamara Thomas
- Department of Natural Science, York College, City University of New York, Jamaica, New York 11451
| | - Sean Walcott
- Department of Natural Science, York College, City University of New York, Jamaica, New York 11451
| | - Peter Scheiner
- Department of Natural Science, York College, City University of New York, Jamaica, New York 11451
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49
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Winter HD, Lescrinier E, Aerschot AV, Herdewijn P. Molecular Dynamics Simulation To Investigate Differences in Minor Groove Hydration of HNA/RNA Hybrids As Compared to HNA/DNA Complexes. J Am Chem Soc 1998. [DOI: 10.1021/ja973721f] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- H. De Winter
- Contribution from the Laboratory of Medicinal Chemistry, Rega Institute, Catholic University of Leuven, Minderbroedersstraat 10, B-3000 Leuven, Belgium
| | - E. Lescrinier
- Contribution from the Laboratory of Medicinal Chemistry, Rega Institute, Catholic University of Leuven, Minderbroedersstraat 10, B-3000 Leuven, Belgium
| | - A. Van Aerschot
- Contribution from the Laboratory of Medicinal Chemistry, Rega Institute, Catholic University of Leuven, Minderbroedersstraat 10, B-3000 Leuven, Belgium
| | - P. Herdewijn
- Contribution from the Laboratory of Medicinal Chemistry, Rega Institute, Catholic University of Leuven, Minderbroedersstraat 10, B-3000 Leuven, Belgium
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50
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Wang J, Busson R, Blaton N, Rozenski J, Herdewijn P. Enantioselective Approach to the Synthesis of Cyclohexane Carbocyclic Nucleosides. J Org Chem 1998. [DOI: 10.1021/jo972285c] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jing Wang
- Laboratory of Medicinal Chemistry, Rega Institute for Medical Research, Katholieke Universiteit Leuven, Minderbroedersstraat 10, B-3000 Leuven, Belgium, and Faculty of Pharmaceutical Sciences, Van Evenstraat 4, B-3000 Leuven, Belgium
| | - Roger Busson
- Laboratory of Medicinal Chemistry, Rega Institute for Medical Research, Katholieke Universiteit Leuven, Minderbroedersstraat 10, B-3000 Leuven, Belgium, and Faculty of Pharmaceutical Sciences, Van Evenstraat 4, B-3000 Leuven, Belgium
| | - Norbert Blaton
- Laboratory of Medicinal Chemistry, Rega Institute for Medical Research, Katholieke Universiteit Leuven, Minderbroedersstraat 10, B-3000 Leuven, Belgium, and Faculty of Pharmaceutical Sciences, Van Evenstraat 4, B-3000 Leuven, Belgium
| | - Jef Rozenski
- Laboratory of Medicinal Chemistry, Rega Institute for Medical Research, Katholieke Universiteit Leuven, Minderbroedersstraat 10, B-3000 Leuven, Belgium, and Faculty of Pharmaceutical Sciences, Van Evenstraat 4, B-3000 Leuven, Belgium
| | - Piet Herdewijn
- Laboratory of Medicinal Chemistry, Rega Institute for Medical Research, Katholieke Universiteit Leuven, Minderbroedersstraat 10, B-3000 Leuven, Belgium, and Faculty of Pharmaceutical Sciences, Van Evenstraat 4, B-3000 Leuven, Belgium
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