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Shanmugasundaram M, Senthilvelan A, Kore AR. An efficient green synthesis of UNA-nucleoside-5′-triphosphates: a versatile synthon for RNA modification with broad therapeutic potential. RESULTS IN CHEMISTRY 2023. [DOI: 10.1016/j.rechem.2023.100841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023] Open
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Shanmugasundaram M, Senthilvelan A, Kore AR. An improved protection-free one-pot chemical synthesis of purine locked nucleic acid nucleoside-5'-triphosphates. NUCLEOSIDES, NUCLEOTIDES & NUCLEIC ACIDS 2021; 41:36-44. [PMID: 34696692 DOI: 10.1080/15257770.2021.1994992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Revised: 10/13/2021] [Accepted: 10/14/2021] [Indexed: 10/20/2022]
Abstract
A simple, reliable, straightforward, and efficient method for the gram-scale chemical synthesis of purine locked nucleic acid (LNA) nucleotides such as LNA-guanosine-5'-triphosphate (LNA-GTP) and LNA-adenosine-5'-triphosphate (LNA-ATP) starting from the corresponding nucleoside is described. The overall reaction utilizes an improved "one-pot, three-step" Ludwig synthetic strategy that involves the monophosphorylation of LNA nucleoside, followed by the reaction with tributylammonium pyrophosphate and subsequent hydrolysis of the resulting cyclic intermediate using water to furnish the corresponding purine LNA nucleotide in good yield with high purity (>99.5%).
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Affiliation(s)
| | | | - Anilkumar R Kore
- Life Sciences Solutions Group, Thermo Fisher Scientific, Austin, Texas, USA
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Shanmugasundaram M, Senthilvelan A, Kore AR. Highly regioselective 1,3-dipolar cycloaddition of 3'- O-propargyl guanosine with nitrile oxide: An efficient method for the synthesis of guanosine containing isoxazole moiety. Tetrahedron Lett 2020; 61:152464. [PMID: 32981977 PMCID: PMC7501312 DOI: 10.1016/j.tetlet.2020.152464] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 09/10/2020] [Accepted: 09/13/2020] [Indexed: 12/28/2022]
Abstract
The 1,3-dipolar cycloaddition reaction of 3'-O-propargyl guanosine with various in-situ generated nitrile oxides in the presence of DMF as a solvent is described. It is noteworthy that the reaction is highly regioselective that affords biologically important guanosine containing isoxazole moiety in good yields with high purities.
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Affiliation(s)
- Muthian Shanmugasundaram
- Life Sciences Solutions Group, Thermo Fisher Scientific, 2130 Woodward Street, Austin, TX 78744-1832, USA
| | - Annamalai Senthilvelan
- Life Sciences Solutions Group, Thermo Fisher Scientific, 2130 Woodward Street, Austin, TX 78744-1832, USA
| | - Anilkumar R Kore
- Life Sciences Solutions Group, Thermo Fisher Scientific, 2130 Woodward Street, Austin, TX 78744-1832, USA
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Senthilvelan A, Shanmugasundaram M, Kore AR. Highly regioselective methylation of inosine nucleotide: an efficient synthesis of 7-methylinosine nucleotide. NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2020; 39:1011-1019. [PMID: 32189563 DOI: 10.1080/15257770.2020.1738457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
A facile, straightforward, reliable, and an efficient chemical synthesis of inosine nucleotides such as 7-methylinosine 5'-O-monophosphate, 7-methylinosine 5'-O-diphosphate, and 7-methylinosine 5'-O-triphosphate, starting from the corresponding inosine nucleotide is delineated. The present methylation reaction of inosine nucleotide utilizes dimethyl sulfate as a methylating agent and water as a solvent at room temperature. It is noteworthy that the present methylation reaction proceeds smoothly under aqueous conditions that is highly regioselective to afford exclusive 7-methylinosine nucleotide in good yields with high purity (>99.5%).
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Affiliation(s)
| | | | - Anilkumar R Kore
- Life Sciences Solutions Group, Thermo Fisher Scientific, Austin, Texas, USA
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Senthilvelan A, Shanmugasundaram M, Kore AR. An efficient protection-free chemical synthesis of inosine 5'-nucleotides. NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2020; 39:829-837. [PMID: 31997708 DOI: 10.1080/15257770.2019.1708388] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
A facile, straightforward, reliable, and efficient chemical synthesis of inosine nucleotides such as inosine-5'-monophosphate, inosine-5'-diphosphate, and inosine-5'-triphosphate, starting from inosine is delineated. The inosine-5'-monophosphate is achieved by the highly regioselective monophosphorylation of inosine using the Yoshikawa procedure. The inosine-5'-diphosphate is obtained by the coupling reaction of tributylammonium phosphate with an activated inosine-5'-monophosphate using zinc chloride as a catalyst. The inosine-5'-triphosphate is efficiently achieved by the improved "one-pot, three-step" Ludwig synthetic strategy. In all the cases, the resulting final product is isolated in good yields with high purity (>99.5%).
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Affiliation(s)
| | | | - Anilkumar R Kore
- Life Sciences Solutions Group, Thermo Fisher Scientific, Austin, TX, USA
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Shanmugasundaram M, Senthilvelan A, Kore AR. C-5 Substituted Pyrimidine Nucleotides/Nucleosides: Recent Progress in Synthesis, Functionalization, and Applications. CURR ORG CHEM 2019. [DOI: 10.2174/1385272823666190809124310] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The chemistry of C5 substituted pyrimidine nucleotide serves as a versatile molecular
biology probe for the incorporation of DNA/RNA that has been involved in various
molecular biology applications such as gene expression, chromosome, and mRNA
fluorescence in situ hybridization (FISH) experiment, mutation detection on arrays and
microarrays, in situ RT-PCR, and PCR. In addition to C5 substituted pyrimidine nucleotide,
C5 substituted pyrimidine nucleoside displays a broad spectrum of biological applications
such as antibacterial, antiviral and anticancer activities. This review focusses on
the recent development in the synthesis of aminoallyl pyrimidine nucleotide, aminopropargyl
pyrimidine nucleotide, fluorescent probes containing C5 substituted pyrimidine nucleotide,
2′-deoxycytidine nucleoside containing vinylsulfonamide and acrylamide modification,
C5 alkenyl, C5 alkynyl, and C5 aryl pyrimidine nucleosides through palladium-catalyzed reaction,
pyrimidine nucleoside containing triazole moiety through Click reaction, 5-isoxazol-3-yl-pyrimidine nucleoside,
C5 azide modified pyrimidine nucleoside, 2′-deoxycytidine nucleotide containing photocleavable moiety,
and uridine nucleoside containing germane and their biological applications are outlined.
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Affiliation(s)
- Muthian Shanmugasundaram
- Life Sciences Solutions Group, Thermo Fisher Scientific, 2130 Woodward Street, Austin, TX 78744-1832, United States
| | - Annamalai Senthilvelan
- Life Sciences Solutions Group, Thermo Fisher Scientific, 2130 Woodward Street, Austin, TX 78744-1832, United States
| | - Anilkumar R. Kore
- Life Sciences Solutions Group, Thermo Fisher Scientific, 2130 Woodward Street, Austin, TX 78744-1832, United States
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Milisavljevič N, Perlíková P, Pohl R, Hocek M. Enzymatic synthesis of base-modified RNA by T7 RNA polymerase. A systematic study and comparison of 5-substituted pyrimidine and 7-substituted 7-deazapurine nucleoside triphosphates as substrates. Org Biomol Chem 2019; 16:5800-5807. [PMID: 30063056 DOI: 10.1039/c8ob01498a] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
We synthesized a small library of eighteen 5-substituted pyrimidine or 7-substituted 7-deazapurine nucleoside triphosphates bearing methyl, ethynyl, phenyl, benzofuryl or dibenzofuryl groups through cross-coupling reactions of nucleosides followed by triphosphorylation or through direct cross-coupling reactions of halogenated nucleoside triphosphates. We systematically studied the influence of the modification on the efficiency of T7 RNA polymerase catalyzed synthesis of modified RNA and found that modified ATP, UTP and CTP analogues bearing smaller modifications were good substrates and building blocks for the RNA synthesis even in difficult sequences incorporating multiple modified nucleotides. Bulky dibenzofuryl derivatives of ATP and GTP were not substrates for the RNA polymerase. In the case of modified GTP analogues, a modified procedure using a special promoter and GMP as initiator needed to be used to obtain efficient RNA synthesis. The T7 RNA polymerase synthesis of modified RNA can be very efficiently used for synthesis of modified RNA but the method has constraints in the sequence of the first three nucleotides of the transcript, which must contain a non-modified G in the +1 position.
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Affiliation(s)
- Nemanja Milisavljevič
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo nam. 2, CZ-16610, Prague 6, Czech Republic.
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Shanmugasundaram M, Senthilvelan A, Kore AR. Highly regio- and stereoselective Michael addition of pseudouridine with propiolates: An efficient method for the synthesis of (E)-pseudouridine-N1-acrylate. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2018.12.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Patel B, Zunk DM, Grant DG, Rudrawar S. Solid‐Phase Microwave‐Assisted Ligand‐Free Suzuki‐Miyaura Cross‐Coupling of 5‐Iodouridine. ChemistrySelect 2018. [DOI: 10.1002/slct.201703111] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Bhautikkumar Patel
- Menzies Health Institute Queensland Griffith University Gold Coast QLD 4222 Australia
- School of Pharmacy and Pharmacology Griffith University Gold Coast QLD 4222 Australia
- Quality Use of Medicines Network Griffith University Gold Coast QLD 4222 Australia
| | - Dr Matthew Zunk
- Menzies Health Institute Queensland Griffith University Gold Coast QLD 4222 Australia
- School of Pharmacy and Pharmacology Griffith University Gold Coast QLD 4222 Australia
- Quality Use of Medicines Network Griffith University Gold Coast QLD 4222 Australia
| | - Dr Gary Grant
- Menzies Health Institute Queensland Griffith University Gold Coast QLD 4222 Australia
- School of Pharmacy and Pharmacology Griffith University Gold Coast QLD 4222 Australia
- Quality Use of Medicines Network Griffith University Gold Coast QLD 4222 Australia
| | - Santosh Rudrawar
- Menzies Health Institute Queensland Griffith University Gold Coast QLD 4222 Australia
- School of Pharmacy and Pharmacology Griffith University Gold Coast QLD 4222 Australia
- Quality Use of Medicines Network Griffith University Gold Coast QLD 4222 Australia
- School of Chemistry The University of Sydney Sydney NSW 2006 Australia
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Shanmugasundaram M, Senthilvelan A, Kore AR. Palladium-Catalyzed Synthesis of (E)-5-(3-Aminoallyl)-Uridine-5'-O-Triphosphates. CURRENT PROTOCOLS IN NUCLEIC ACID CHEMISTRY 2017; 71:13.18.1-13.18.10. [PMID: 29275536 DOI: 10.1002/cpnc.42] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
This unit describes a simple, reliable, and efficient chemical method for the synthesis of 5-(3-aminoallyl)-2'-deoxyuridine-5'-O-triphosphate (AA-dUTP) and 5-(3-aminoallyl)-uridine-5'-O-triphosphate (AA-UTP), starting from the corresponding nucleoside triphosphate. The presented strategy involves regioselective iodination of nucleoside triphosphate using N-iodosuccinimide followed by the palladium-catalyzed Heck coupling with allylamine to provide the corresponding (E)-5-aminoallyl-uridine-5'-O-triphosphate in good yields. It is noteworthy that the protocol not only provides a high-purity product but also eliminates the use of toxic mercuric reagents. © 2017 by John Wiley & Sons, Inc.
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Affiliation(s)
| | | | - Anilkumar R Kore
- Life Sciences Solutions Group, Thermo Fisher Scientific, Austin, Texas
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Shanmugasundaram M, Senthilvelan A, Xiao Z, Kore AR. An Efficient Protection-Free One-Pot Chemical Synthesis of Modified Nucleoside-5'-Triphosphates. NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2016; 35:356-62. [PMID: 27159048 DOI: 10.1080/15257770.2016.1163382] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
A simple, reliable, and an efficient "one-pot, three step" chemical method for the synthesis of modified nucleoside triphosphates such as 5-methylcytidine-5'-triphosphate (5-MeCTP), pseudouridine-5'-triphosphate (pseudoUTP) and N(1)-methylpseudouridine-5'-triphosphate (N(1)-methylpseudoUTP) starting from the corresponding nucleoside is described. The overall reaction involves the monophosphorylation of nucleoside, followed by the reaction with pyrophosphate and subsequent hydrolysis of the cyclic intermediate to furnish the corresponding NTP in moderate yields with high purity (>99.5%).
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Affiliation(s)
| | | | - Zejun Xiao
- a Life Sciences Solutions Group, Thermo Fisher Scientific , Austin , Texas , USA
| | - Anilkumar R Kore
- a Life Sciences Solutions Group, Thermo Fisher Scientific , Austin , Texas , USA
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Synthesis of acridine-1,8-dione substituted (E)-5-(3-aminoallyl)-uridine-5′-triphosphate: a new potential fluorogenic molecular probe. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.03.089] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Dadová J, Cahová H, Hocek M. Polymerase Synthesis of Base-Modified DNA. MODIFIED NUCLEIC ACIDS 2016. [DOI: 10.1007/978-3-319-27111-8_6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Kore AR, Yang B, Thiyagarajan SS, Srinivasan B. Synthesis and Substrate Evaluation of (E)-5-[(3-Selenophene-2-Carboxamido)Prop-1-en-1-yl]-Uridine-5'-O-Triphosphate for RNA Polymerase. NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2015; 34:866-76. [PMID: 26430834 DOI: 10.1080/15257770.2015.1081941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Design, synthesis and T7 RNA polymerase substrate evaluation of (E)-5-[(3-selenophene-2-carboxamido)prop-1-en-1-yl]-uridine-5'-O-triphosphate is reported. The title compound is shown to be a good substrate for RNA polymerase by RNA labeling through in vitro transcription. pTRI-plasmid DNA with β-actin gene sequence (∼300 base pairs) with T7 promoter was used as a template for the in vitro transcription. Transcribed product is characterized for incorporation by gel assay and for integrity, full length and size by bioanalyzer. The title compound will be very useful in biophysical techniques to obtain information on dynamics and recognition properties in real time as well as 3D structure of nucleic acids.
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Affiliation(s)
- Anilkumar R Kore
- a Life Sciences Solutions Group, Thermo Fisher Scientific , Austin , TX , USA
| | - Bo Yang
- a Life Sciences Solutions Group, Thermo Fisher Scientific , Austin , TX , USA
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Kore AR, Yang B, Srinivasan B, Senthilvelan A. Concise and efficient synthesis of 3'-O-tetraphosphates of 2'-deoxyadenosine and 2'-deoxycytidine. NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2015; 34:33-9. [PMID: 25513862 DOI: 10.1080/15257770.2014.955193] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
We describe concise and efficient synthesis of biologically very important 3'-O-tetraphosphates namely 2'-deoxyadenosine-3'-O-tetraphosphate (2'-d-3'-A4P) and 2'-deoxycytidine-3'-O-tetra-phosphate (2'-d-3'-C4P). N(6)-benzoyl-5'-O-levulinoyl-2'-deoxyadenosine was converted into N(6)-benzoyl-5'-O-levulinoyl-2'-deoxyadenosine-3'-O-tetraphosphate in 87% yield using a one-pot synthetic methodology. One-step concurrent deprotection of N(6)-benzoyl and 5'-O-levulinoyl groups using concentrated aqueous ammonia resulted 2'-d-3'-A4P in 74% yield. The same synthetic strategy was successfully employed to convert N(4)-benzoyl-5'-O-levulinoyl-2'-deoxycytidine into 2'-d-3'-C4P in 68% yield.
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Affiliation(s)
- Anilkumar R Kore
- a Life Sciences Solutions Group, Thermo Fisher Scientific , Austin , Texas , USA
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Kore AR, Senthilvelan A, Shanmugasundaram M, Sandoval D, Pardo A. A new efficient stereoselective method for the synthesis of (E)-5-aminoallyl-pyrimidine-5'-triphosphates using palladium-catalyzed Heck reaction. NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2015; 34:221-8. [PMID: 25710357 DOI: 10.1080/15257770.2014.978013] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
An efficient overall two-step strategy for the synthesis of (E)-5-aminoallyl-pyrimidine-5'-triphoshate, starting from commercially available pyrimidine-5'-triphosphate is described. The method involves regioselective iodination of pyrimidine-5'-triphosphate, followed by the palladium-catalyzed Heck coupling with allylamine. The catalytic reaction is highly stereoselective and compatible with many functional groups present in the reactants.
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Affiliation(s)
- Anilkumar R Kore
- a Life Sciences Solutions Group , Thermo Fisher Scientific , Austin , TX , USA
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Kore AR, Senthilvelan A, Shanmugasundaram M. Highly regioselective C-5 iodination of pyrimidine nucleotides and subsequent chemoselective Sonogashira coupling with propargylamine. NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2015; 34:92-102. [PMID: 25621703 DOI: 10.1080/15257770.2014.964411] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
An efficient C-5 iodination of pyrimidine-5'-triphosphates and subsequent palladium-catalyzed Sonogashira coupling reaction with propargylamine is described. The iodination reaction is highly regioselective and the coupling reaction is highly chemoselective that furnishes exclusive 5-(3-aminopropargyl)-pyrimidine-5'-triphosphate in good yield with high purity (>99%).
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Affiliation(s)
- Anilkumar R Kore
- a Thermo Fisher Scientific , Bioorganic Chemistry Division , Austin , TX , USA
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Kore AR, Yang B, Srinivasan B. Short and straightforward synthesis of triphosphates of artificial nucleobase pairs displaying unconventional pairing scheme. NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2015; 33:767-73. [PMID: 25372992 DOI: 10.1080/15257770.2014.938754] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Concise, facile and efficient synthesis of 5'-O-triphosphates of 6-amino-5-nitro-3-(1'-β-D-2'-deoxyribofuranosyl)-2(1H)-pyridone (dZ) and its Watson-Crick complement 2-amino-8-(1'-β-D-2'-deoxyribofuranosyl)-imidazo[1,2a]-1,3,5-triazin-4(8H)-one (dP) is reported using a one-pot synthetic procedure.
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Affiliation(s)
- Anilkumar R Kore
- a Bioorganic Chemistry Division , Life Sciences Solutions Group, Thermo Fisher Scientific , Austin , TX , USA
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Kore AR, Yang B, Srinivasan B. Fluorous-assisted synthesis of (E)-5-[3-aminoallyl]-uridine-5'-O-triphosphate. ACTA ACUST UNITED AC 2015; 60:1.33.1-1.33.10. [PMID: 25754887 DOI: 10.1002/0471142700.nc0133s60] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
An efficient, reliable method for the chemical synthesis of (E)-5-[3-aminoallyl]-uridine-5'-O-triphosphate (AA-UTP), starting from 5-iodouridine, is described. This new strategy features the involvement of one-pot triphosphate formation and fluorous solid-phase extraction (F-SPE). The one-pot synthesis involves the mono phosphorylation of fluorous-tagged uridine, followed by the reaction with pyrophosphate to afford the fluorous-tagged AA-UTP. The F-SPE is achieved by installing a fluorous-tag onto the uridine prior to triphosphate formation, purification via F-SPE, and cleavage of the fluorous-tag. It is worth mentioning that this protocol produces AA-UTP in high yield and purity using one simple F-SPE; no conventional column chromatography is involved.
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Affiliation(s)
- Anilkumar R Kore
- Life Sciences Solutions Group, Thermo Fisher Scientific, Austin, Texas
| | - Bo Yang
- Life Sciences Solutions Group, Thermo Fisher Scientific, Austin, Texas
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Kore AR, Yang B, Srinivasan B. Synthesis of 5-[3,6-di(pyridin-2-yl)pyridazine-4-yl]-2′-deoxyuridine-5′-O-triphosphate—a potential probe for fluorescence detection and imaging DNA. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2014.12.100] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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Efficient synthesis of terminal 4-methylumbelliferyl labeled 5-fluoro-2′-deoxyuridine-5′-O-tetraphosphate (Um-PPPP-FdU): a potential probe for homogenous fluorescent assay. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.07.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Kore AR, Senthilvelan A, Srinivasan B, Shanmugasundaram M. Facile protection-free one-pot chemical synthesis of nucleoside-5'-tetraphosphates. NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2014; 32:411-20. [PMID: 23895352 DOI: 10.1080/15257770.2013.805219] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
A new, straightforward, reliable, and convenient protection-free one-pot method for the synthesis of 2'-deoxynucleoside-5'-tetraphosphate and ribonucleoside-5'-tetraphosphate is reported. The present synthetic strategy involves the monophosphorylation of a nucleoside followed by reaction with tris-(tri-n-butylammonium) triphosphate and subsequent hydrolysis of the putative cyclic tetrametaphosphate intermediate to provide nucleoside-5'-tetraphosphate in moderate yield with high purity. A plausible mechanism is proposed to account for the formation of product.
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Affiliation(s)
- Anilkumar R Kore
- Bioorganic Chemistry Division, Life Technologies Corporation, Austin, Texas 78744-1832, USA.
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Kore AR, Yang B, Srinivasan B. Concise and efficient synthesis of 3′-O-triphosphates of 2′-deoxyadenosine and 2′-deoxycytidine. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.01.077] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Kore AR, Senthilvelan A, Srinivasan B, Shanmugasundaram M. Facile protection-free one-pot synthesis of 7-deaza-2′-deoxyguanosine-5′-triphosphate — A versatile molecular biology probe. CAN J CHEM 2013. [DOI: 10.1139/cjc-2013-0052] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
A simple, straightforward, reliable, and efficient protection-free “one-pot, three-step” chemical synthesis of 7-deaza-2′-deoxyguanosine-5′-triphosphate (7-deaza-dGTP) is described. The reaction involves monophosphorylation of 7-deaza-2′-deoxyguanosine using phosphorous oxychloride as the phosphorylating agent, followed by reaction with tributylammonium pyrophosphate, and subsequent hydrolysis affords 7-deaza-2′-deoxyguanosine-5′-triphosphate in a 52% yield with high purity (>99.9%).
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Affiliation(s)
- Anilkumar R. Kore
- Life Technologies Corporation, Bioorganic Chemistry Division, 2130 Woodward Street, Austin, TX 78744-1832, USA
| | - Annamalai Senthilvelan
- Life Technologies Corporation, Bioorganic Chemistry Division, 2130 Woodward Street, Austin, TX 78744-1832, USA
| | - Balasubramanian Srinivasan
- Life Technologies Corporation, Bioorganic Chemistry Division, 2130 Woodward Street, Austin, TX 78744-1832, USA
| | - Muthian Shanmugasundaram
- Life Technologies Corporation, Bioorganic Chemistry Division, 2130 Woodward Street, Austin, TX 78744-1832, USA
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Le Bras J, Muzart J. β-Elimination competitions leading to CC bonds from alkylpalladium intermediates. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.09.076] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Kore AR, Senthilvelan A, Shanmugasundaram M. A new, facile, and protection-free one-pot chemical synthesis of 2′-deoxynucleoside-5′-tetraphosphates. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.08.071] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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Kore AR, Shanmugasundaram M, Charles I. An efficient synthesis of highly functionalized dinucleotide cap analogs. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.04.133] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Kore AR, Senthilvelan A, Shanmugasundaram M. Highly chemoselective palladium-catalyzed Sonogashira coupling of 5-iodouridine-5′-triphosphates with propargylamine: a new efficient method for the synthesis of 5-aminopropargyl-uridine-5′-triphosphates. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.04.023] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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