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Growing Science » Current Chemistry Letters » Synthesis and anti-inflammatory activity of S-oxides of pyridinyloxy substituted imidazo[2,1-b][1,3]thiazines

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Current Chemistry Letters
ISSN 1927-730x (Online) - ISSN 1927-7296 (Print)
Quarterly Publication
Volume 12 Issue 2 pp. 335-342, 2023

Synthesis and anti-inflammatory activity of S-oxides of pyridinyloxy substituted imidazo[2,1-b][1,3]thiazines Pages 335-342 PDF Download PDF

Authors: Nataliia Slyvka, Lesya Saliyeva, Serhii Holota, Mariia Litvinchuk, Svitlana Shishkina, Mykhailo Vovk

📋 Author Affiliations:
N. Slyvka ORCID 1, L. Saliyeva ORCID 1, S. Holota ORCID 2, M. Litvinchuk ORCID 3, S. Shishkina ORCID 4, M. Vovk ORCID 3
1 Department of Organic Chemistry and Pharmacy, Lesya Ukrainka Volyn National University, Volya Avenue 13, Lutsk, 43025, Ukraine
2 Department of Organic Chemistry and Pharmacy, Lesya Ukrainka Volyn National University, Volya Avenue 13, Lutsk, 43025, Ukraine, Department of Pharmaceutical, Organic and Bioorganic Chemistry, Danylo Halytsky Lviv National Medical University, Kyryla i Mefodiya St. 6, Lviv, 79005, Ukraine
3 Department of Functional Heterocyclic Systems, Institute of Organic Chemistry of National Academy of Sciences of Ukraine, Academician Kuharya St. 5, Kyiv, 02660, Ukraine
4 Department of X-ray Diffraction Study and Quantum Chemistry, SSI “Institute for Single Crystals”, National Academy of Sciences of Ukraine, Nauka Avenue 60, Kharkiv, 61000, Ukraine
doi 10.5267/j.ccl.2022.12.006
2 Source: Scopus
Crossref 2 Source: CrossRef

🔑 Keywords: Imidazo[2, 1-b][1, 3]thiazin-S-oxides, m-Chloroperbenzoic acid, Oxidation, Diastereomers, Anti-inflammatory activity

Abstract: Here derivatives of imidazo[2,1-b][1,3]thiazines are attractive objects for organic and medicinal chemists. In the present work chemoselective conditions for oxidation of the sulfur atom in the 6-(2-pyridinyloxy)substituted (benzo)imidazo[2,1-b][1,3]thiazines to the corresponding sulfoxides were proposed and their synthesis was performed. Synthesized sulfoxides exist in the diastereomeric mixture and individual diastereomers 2a-e and 3a-e were obtained using a chromatographic technique. The structure of compounds 2a-e and 3a-e were characterized using 1H, 13C NMR, LC-MS spectra, and X-ray analysis for derivative 2b. The anti-inflammatory activity screening in vivo was performed using the carrageenan model of inflammatory paw edema in white rats for all the diastereomeric mixtures and individual diastereomers. Diastereomer 2c possessed an anti-inflammatory effect with an inflammation inhibition index of 46.1% which was equal to the activity of the reference drug diclofenac sodium.

How to cite this paper
APA: Slyvka, N., Saliyeva, L., Holota, S., Litvinchuk, M., Shishkina, S & Vovk, M. (2023). Synthesis and anti-inflammatory activity of S-oxides of pyridinyloxy substituted imidazo[2,1-b][1,3]thiazines. Current Chemistry Letters, 12(2), 335-342.
Chicago/Turabian: Slyvka, N., Saliyeva, L., Holota, S., Litvinchuk, M., Shishkina, S & Vovk, M. 2023. "Synthesis and anti-inflammatory activity of S-oxides of pyridinyloxy substituted imidazo[2,1-b][1,3]thiazines." Current Chemistry Letters 12, no. 2 (2023): 335-342.
AMA: Slyvka, N., Saliyeva, L., Holota, S., Litvinchuk, M., Shishkina, S & Vovk, M. Synthesis and anti-inflammatory activity of S-oxides of pyridinyloxy substituted imidazo[2,1-b][1,3]thiazines. Current Chemistry Letters. 2023;12(2):335-342.

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📚 Journal: Current Chemistry Letters | 📅 Year: 2023 | 📖 Volume: 12 | 📄 Issue: 2 | 👁️ Views: 1121 | 📊 Crossref: 2

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