SYNTHESIS OF THIAZOLIDINONE DERIVATIVES BASED ON CITRAL AS POTENTIAL BIOLOGICALLY ACTIVE COMPOUNDS
DOI:
https://doi.org/10.11603/2312-0967.2026.2.15977Keywords:
citral, thiazoles, thiazolidones, synthesis, ProTox-IIІAbstract
The aim of the work. To synthesize and investigate new thiazole and thiazolidinone derivatives containing a citral fragment, as well as to evaluate their predicted toxicity.
Materials and Methods. The synthesis of the target compounds was carried out using conventional organic synthesis methods. The structures of the obtained products were confirmed by 1H NMR spectroscopy and chromatography–mass spectrometry. For a selected set of synthesized compounds, in silico prediction of oral toxicity was performed using the ProTox-IIІ online platform.
Results. A series of thiazole and thiazolidinone derivatives incorporating a citral fragment into their molecular structure was successfully synthesized with high yields. The analysis of spectral data confirmed the proposed structures of the synthesized compounds. According to the toxicity prediction results, all investigated compounds belong to toxicity class IV (LD₅₀ = 350–1250 mg/kg) and predominantly do not exhibit hepatotoxic, immunotoxic, mutagenic, or cytotoxic effects. For some derivatives, a potential carcinogenic activity was predicted.
Conclusions. The synthesized thiazole and thiazolidinone derivatives containing a citral fragment are characterized by moderate predicted toxicity and may be considered promising molecular platforms for further pharmacological and toxicological studies.
References
Sharma S, Habib S, Sahu D, Gupta J. Chemical properties and therapeutic potential of citral, a monoterpene isolated from lemongrass. Med Chem. 2021;17(1):2-12. https://doi.org/10.2174/1573406416666191227111106 DOI: https://doi.org/10.2174/18756638MTAzbMjYa2
Idrees M, Hakkim FL, Naikoo GA, Ul Hassan I. Recent advances in extraction, characterization, and potential use of citral. In: Natural Bio-active Compounds. Vol. 3. Biotechnology, Bioengineering, and Molecular Approaches. 2019. p. 225-236. https://doi.org/10.1007/978-981-13-7438-8_9 DOI: https://doi.org/10.1007/978-981-13-7438-8_9
Southwell I. Backhousia citriodora F. Muell. (Lemon Myrtle), an unrivalled source of citral. Foods. 2021;10(7):1596. https://doi.org/10.3390/foods10071596 DOI: https://doi.org/10.3390/foods10071596
Habib S, Gupta P, Bhat SS, Gupta J. In silico, in-vitro and in vivo screening of biological activities of citral. Int J Vitam Nutr Res. 2021;91(3-4):251-260. https://doi.org/10.1024/0300-9831/a000625 DOI: https://doi.org/10.1024/0300-9831/a000625
Li Y, Mei J, Xie J. Citral: bioactivity, metabolism, delivery systems, and food preservation applications. Compr Rev Food Sci Food Saf. 2025;24(3):e70168. https://doi.org/10.1111/1541-4337.70168 DOI: https://doi.org/10.1111/1541-4337.70168
Hu YR, Ga F, Ch YY, Li SL, Li XL, Ya HK, et al. Research progress of extraction method and biological activity of natural citral. J South Agric. 2023;53(11):3217-3228. https://doi.org/10.3969/j.issn.2095-1191.2022.11.023
Shen Y, Sun Z, Guo X. Citral inhibits lipopolysaccharide-induced acute lung injury by activating PPAR-γ. Eur J Pharmacol. 2015;747:45-51. https://doi.org/10.1016/j.ejphar.2014.09.040 DOI: https://doi.org/10.1016/j.ejphar.2014.09.040
Solon IG, Santos WS, Branco LG. Citral as an anti-inflammatory agent: mechanisms, therapeutic potential, and perspectives. Pharmacol Res Nat Prod. 2025:100253. https://doi.org/10.1016/j.prenap.2025.100253 DOI: https://doi.org/10.1016/j.prenap.2025.100253
Lee HJ, Jeong HS, Kim DJ, Noh YH, Yuk DY, Hong JT. Inhibitory effect of citral on NO production by suppression of iNOS expression and NF-κB activation in RAW264.7 cells. Arch Pharm Res. 2008;31(3):342-349. https://doi.org/10.1007/s12272-001-1162-0 DOI: https://doi.org/10.1007/s12272-001-1162-0
Banerjee P, Eckert AO, Schrey AK, Preissner R. ProTox-II: a webserver for the prediction of toxicity of chemicals. Nucleic Acids Res. 2018;46(W1):W257-W263. https://doi.org/10.1093/nar/gky318 DOI: https://doi.org/10.1093/nar/gky318
Banerjee P, Kemmler E, Dunkel M, Preissner R. ProTox 3.0: a webserver for the prediction of toxicity of chemicals. Nucleic acids research. 2024;52(W1):W513-20. https://doi.org/10.1093/nar/gkae303 DOI: https://doi.org/10.1093/nar/gkae303
Downloads
Published
Issue
Section
License

This work is licensed under a Creative Commons Attribution 4.0 International License.
The authors who publish their materials in this journal agree with the following terms:
- Authors reserve the right to authorship of their work and assign to the journal the right to first publish this work under the terms of the Creative Commons Attribution License, which allows other persons to freely distribute the published work with a mandatory reference to the authors of original work and the first publication of work in this journal
. - Authors have the right to make independent extra-exclusive work agreements in the form they are published by this journal (for example, posting work in an electronic repository of an institution or publishing as part of a monograph), provided that the link to the first publication of the work in this journal is maintained.
Journal policy allows and encourages publication of manuscripts on the Internet (for example, in institutions repositories or on personal websites), both before the publication of this manuscript and during its editorial review, as it contributes to productive scientific discussion and positively affects the efficiency and dynamics of the citation of the published work (see The Effect of Open Access).