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Burcevs A, Sebris A, Traskovskis K, Chu HW, Chang HT, Jovaišaitė J, Juršėnas S, Turks M, Novosjolova I. Synthesis of Fluorescent C-C Bonded Triazole-Purine Conjugates. J Fluoresc 2024; 34:1091-1097. [PMID: 37460821 DOI: 10.1007/s10895-023-03337-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Accepted: 07/03/2023] [Indexed: 05/02/2024]
Abstract
A design toward C-C bonded 2,6-bis(1H-1,2,3-triazol-4-yl)-9H-purine and 2-piperidinyl-6-(1H-1,2,3-triazol-4-yl)-9H-purine derivatives was established using the combination of Mitsunobu, Sonogashira, copper (I) catalyzed azide-alkyne cycloaddition, and SNAr reactions. 11 examples of 2,6-bistriazolylpurine and 14 examples of 2-piperidinyl-6-triazolylpurine intermediates were obtained, in 38-86% and 41-89% yields, respectively. Obtained triazole-purine conjugates expressed good fluorescent properties which were studied in the solution and in the thin layer film for the first time. Quantum yields reached up to 49% in DMSO for bistriazolylpurines and up to 81% in DCM and up to 95% in DMSO for monotriazolylpurines. Performed biological studies in mouse embryo fibroblast, human keratinocyte, and transgenic adenocarcinoma of the mouse prostate cell lines showed that most of obtained triazole-purine conjugates are not cytotoxic. The 50% cytotoxic concentration of the tested derivatives was in the range from 59.6 to 1528.7 µM.
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Affiliation(s)
- Aleksejs Burcevs
- Institute of Technology of Organic Chemistry, Faculty of Materials Science and Applied Chemistry, Riga Technical University, P. Valdena Str. 3, Riga, LV-1048, Latvia
| | - Armands Sebris
- Institute of Technology of Organic Chemistry, Faculty of Materials Science and Applied Chemistry, Riga Technical University, P. Valdena Str. 3, Riga, LV-1048, Latvia
| | - Kaspars Traskovskis
- Institute of Applied Chemistry, Faculty of Materials Science and Applied Chemistry, Riga Technical University, P. Valdena Str. 3, Riga, LV-1048, Latvia
| | - Han-Wei Chu
- Department of Biomedical Sciences, Chang Gung University, Taoyuan, 33302, Taiwan
| | - Huan-Tsung Chang
- Department of Biomedical Sciences, Chang Gung University, Taoyuan, 33302, Taiwan
- Graduate Institute of Biomedical Sciences, Chang Gung University, Taoyuan, 33302, Taiwan
- Center for Advanced Biomaterials and Technology Innovation, Chang Gung University, Taoyuan, 33302, Taiwan
- Division of Breast Surgery, Department of General Surgery, Chang-Gung Memorial Hospital, Linkou, Taoyuan, 33305, Taiwan
| | - Justina Jovaišaitė
- Institute of Photonics and Nanotechnology, Faculty of Physics, Vilnius University, Saulėtekis av. 3, Vilnius, LT-10257, Lithuania
| | - Saulius Juršėnas
- Institute of Photonics and Nanotechnology, Faculty of Physics, Vilnius University, Saulėtekis av. 3, Vilnius, LT-10257, Lithuania
| | - Māris Turks
- Institute of Technology of Organic Chemistry, Faculty of Materials Science and Applied Chemistry, Riga Technical University, P. Valdena Str. 3, Riga, LV-1048, Latvia
| | - Irina Novosjolova
- Institute of Technology of Organic Chemistry, Faculty of Materials Science and Applied Chemistry, Riga Technical University, P. Valdena Str. 3, Riga, LV-1048, Latvia.
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Fluorescent inosine analogues: Synthesis, cytotoxicity activity and self-assembly nanoparticle for live cell image. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.133230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Kondhare D, Zhang A, Leonard P, Seela F. DNA with Purine-Purine Base Pairs: Size and Position of Isoguanine and 8-Aza-7-deazaisoguanine Clickable Residues Control the Molecular Recognition of Guanine and 5-Aza-7-deazaguanine. J Org Chem 2022; 87:10630-10650. [PMID: 35948421 DOI: 10.1021/acs.joc.2c00812] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Purine-purine base pairs represent an alternative recognition system to the purine-pyrimidine pairing reported by Watson and Crick. Modified purines are the source for non-canonical interactions. To mimic dG-dC interactions, 2'-deoxyisoguanosine (1a) and 8-aza-7-deaza-2'-deoxyisoguanosine (2a) are used to construct base pairs with 2'-deoxyguanosine or 5-aza-7-deaza-2'-deoxyguanosine (dZ). This work reports the chemical functionalization of 1a and its shape mimic 2a in purine-purine base pairs. Clickable rigid ethynyl and more flexible octadiynyl side chain derivatives of 1a and 2a were synthesized. They were protected and converted into phosphoramidites. Building blocks were employed in the synthesis of base-modified 12-mer oligonucleotides with clickable side chains. Pyrene azide was clicked to the linkers. After hybridization, oligonucleotides with purine-purine base pairs were constructed with linkers and pyrene adducts at position-8 of isoguanine and at position-7 of 8-aza-7-deazaisoguanine. Recognition and stability of purine-purine base pairs were explored using Tm values, thermodynamic data, and CD-spectroscopic changes. Side chains at position-7 of 8-aza-7-deazaisoguanine-guanine base pairs or with 5-aza-7-deazaguanine are well accommodated in DNA, whereas functionalization at 8-position of isoguanine makes the DNA unstable. Pyrene click adducts verified the observation. In conclusion, position-7 is the place of choice for purine-purine base pair functionalization.
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Affiliation(s)
- Dasharath Kondhare
- Laboratory of Bioorganic Chemistry and Chemical Biology, Center for Nanotechnology, Heisenbergstrasse 11, 48149 Münster, Germany
| | - Aigui Zhang
- Laboratory of Bioorganic Chemistry and Chemical Biology, Center for Nanotechnology, Heisenbergstrasse 11, 48149 Münster, Germany
| | - Peter Leonard
- Laboratory of Bioorganic Chemistry and Chemical Biology, Center for Nanotechnology, Heisenbergstrasse 11, 48149 Münster, Germany
| | - Frank Seela
- Laboratory of Bioorganic Chemistry and Chemical Biology, Center for Nanotechnology, Heisenbergstrasse 11, 48149 Münster, Germany.,Laboratorium für Organische und Bioorganische Chemie, Institut für Chemie neuer Materialien, Universität Osnabrück, Barbarastrasse 7, 49069 Osnabrück, Germany
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He X, Kuang S, Gao Q, Xie Y, Ming X. Bright fluorescent purine analogues as promising probes. NUCLEOSIDES, NUCLEOTIDES & NUCLEIC ACIDS 2021; 41:45-60. [PMID: 34806926 DOI: 10.1080/15257770.2021.2004418] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 11/06/2021] [Accepted: 11/06/2021] [Indexed: 10/19/2022]
Abstract
Modified bright fluorescent nucleosides that respond to the microenvironment have great potential as probes. A series of novel 8-(phenylethynyl)phenylated 2-amino-2'-deoxyadenosine and 2'-deoxyisoguanosine derivatives have been synthesized by Sonogashira-type coupling reaction and Suzuki reaction. The maximum emission of the new compounds is in the visible region, with strong solvatochromicity and pH-dependent fluorescent properties. Furthermore, some of them exhibit bright fluorescence emissions in various solvents (ε × Φ = 4000-39,000 cm-1 M-1). These consequences indicate that purine analogues could respond to the microenvironment and serve as promising fluorescent probes.Supplemental data for this article is available online at https://doi.org/10.1080/15257770.2021.2004418 .
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Affiliation(s)
- Xin He
- School of Pharmacy, Chengdu Medical College, Chengdu, Sichuan, China
| | - Shuang Kuang
- School of Pharmacy, Chengdu Medical College, Chengdu, Sichuan, China
| | - Qian Gao
- School of Pharmacy, Chengdu Medical College, Chengdu, Sichuan, China
| | - YuXin Xie
- School of Pharmacy, Chengdu Medical College, Chengdu, Sichuan, China
| | - Xin Ming
- School of Pharmacy, Chengdu Medical College, Chengdu, Sichuan, China
- Study on the Structure-Specific Small Molecular Drug in Sichuan Province College Key Laboratory, Chengdu Medical College, Chengdu, Sichuan, China
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Fang X, Li J, Zhong Q, Ming X. Synthesis and cytostatic activity of emissive 7-thiazolyl-7-deazapurine nucleosides. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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