Violuriic acids: history, pharmacology and prospects (Analytical review)
Krasnov K.A., Krasnova A.A., Feklistova K.A., Papp V.T.
Federal State Budgetary Institution «Scientific and Clinical Center of Toxicology named after academician S.N. Golikov of the Federal Medical and Biological Agency
Brief summary
The development of drugs that enhance the adaptive capabilities of the body is one of the priorities of modern pharmacology. In this regard, 5-hydroxyiminobarbituric (violuric) acid and its derivatives are of interest - a group of heterocyclic substances of synthetic origin with antihypoxant, actoprotective, antioxidant, hepatoprotective, pulmonoprotective, antimicrobial and many other types of activity. By their structure, chemical and biological properties, violuric acids have no analogues among the known antihypoxants and actoprotectors, which makes them promising objects for the development of drugs with an original mechanism of action.
The aim of the study. Systematization of the literature data on violuric acids and assessment of the prospects for using this group of compounds in the development of pharmacological agents to increase the adaptive capabilities of the body.
Materials and methods/ Russian and foreign scientific publications identified as a result of the search were used as materials. logP values were evaluated using the ACD Labs 2016 software package.
Outcomes. 5-Hydroxyiminobarbituric acids and their 2-thioanalogs, called violuric acids (VA), are a group of heterocyclic oximes. The structural basis of the group is 5-hydroxyminopyrimidine scaffold, which possess an acidic, redox and complexing properties. The biological properties of violuric acids are diverse and significantly depend on the nature of the substituents. 1-(4-Bromophenyl)violuric acid is approved for use as an official drug for the treatment of liver diseases. Unsubstituted violuric acid, 1,3-dimethylvioluric and 2-thiovioluric (TVA) acids are active as antihypoxants, exhibit adaptogenic properties and protect the body from poisoning with nitrites and aniline, and 2-methylthiovioluric acid has a therapeutic effect in toxic pulmonary edema. Substances with interferon-inducing, hepatoprotective neuroprotective, bacteriostatic and antiviral properties have been found in a number of N-substituted derivatives of VC and TVA. At the biochemical level, the action of violurates has a multifaceted character, the activation of the body's adaptation mechanisms, antioxidant and membrane stabilizing effects are particularly noted.
Conclusion. The available data indicate the high biological value of violuric acids. Due to their potential for chemical and pharmacological diversity, derivatives of this group represent a promising area for pharmaceutical development. The main directions of development are the search for drugs with antihypoxant, adaptogenic, decongestant and cytoprotective effects.
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