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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">pmedpharm</journal-id><journal-title-group><journal-title xml:lang="ru">Фармация и фармакология</journal-title><trans-title-group xml:lang="en"><trans-title>Pharmacy &amp; Pharmacology</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2307-9266</issn><issn pub-type="epub">2413-2241</issn><publisher><publisher-name>Pyatigorsk Medical and Pharmaceutical Institute - branch of Volgograd State Medical Univer</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.19163/2307-9266-2024-12-4-281-294</article-id><article-id custom-type="elpub" pub-id-type="custom">pmedpharm-1659</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ОРИГИНАЛЬНАЯ СТАТЬЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>RESEARCH ARTICLE</subject></subj-group></article-categories><title-group><article-title>Анализ антиоксидантных свойств производных дибензилиденацетона с использованием квантовохимических параметров молекул</article-title><trans-title-group xml:lang="en"><trans-title>Analysis of antioxidant properties of dibenzylideneacetone derivatives using quantum chemical parameters of the molecule</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2756-9382</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Оганесян</surname><given-names>Э. Т.</given-names></name><name name-style="western" xml:lang="en"><surname>Oganesyan</surname><given-names>E. T.</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор фармацевтических наук, профессор, заведующий кафедрой органической химии ПМФИ – филиала ФБОУ ВО ВолгГМУ Минздрава России.</p><p>357532, Россия, Пятигорск, пр-кт Калинина, д. 11</p></bio><bio xml:lang="en"><p>Doctor of Sciences (Pharmacy), Professor, Head of the Department of Organic Chemistry, Pyatigorsk Medical and Pharmaceutical Institute – branch of Volgograd State Medical University.</p><p>11, Kalinin Ave., Pyatigorsk, Russia, 357532</p></bio><email xlink:type="simple">edwardov@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4104-9217</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Руковицина</surname><given-names>В. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Rukovitsina</surname><given-names>V. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат фармацевтических наук, старший преподаватель кафедры органической химии ПМФИ – филиала ФБОУ ВО ВолгГМУ Минздрава России.</p><p>357532, Россия, Пятигорск, пр-кт Калинина, д. 11</p></bio><bio xml:lang="en"><p>Candidate of Sciences (Pharmacy), Senior lecturer at the Department of Organic Chemistry, Pyatigorsk Medical and Pharmaceutical Institute – branch of Volgograd State Medical University. </p><p>11, Kalinin Ave., Pyatigorsk, Russia, 357532</p></bio><email xlink:type="simple">rukovitsina.vika@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5595-8182</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Поздняков</surname><given-names>Д. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Pozdnyakov</surname><given-names>D. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат фармацевтических наук, доцент, заведующий кафедрой фармакологи с курсом клинической фармакологии ПМФИ – филиала ФБОУ ВО ВолгГМУ Минздрава России. </p><p>357532, Россия, Пятигорск, пр-кт Калинина, д. 11</p></bio><bio xml:lang="en"><p>Candidate of Sciences (Pharmacy), Associate Professor, Head of the Department of Pharmacology with a course in Clinical Pharmacology, Pyatigorsk Medical and Pharmaceutical Institute – branch of Volgograd State Medical University. </p><p>11, Kalinin Ave., Pyatigorsk, Russia, 357532</p></bio><email xlink:type="simple">pozdniackow.dmitry@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9685-1384</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Аджиахметова</surname><given-names>С. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Adzhiakhmetova</surname><given-names>S. L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат фармацевтических наук, доцент кафедры органической химии ПМФИ – филиала ВолгГМУ Минздрава России.</p><p>357532, Россия, Пятигорск, пр-кт Калинина, д. 11</p></bio><bio xml:lang="en"><p>Candidate of Sciences (Pharmacy), Senior lecturer at the Department of Organic Chemistry, Pyatigorsk Medical and Pharmaceutical Institute – branch of Volgograd State Medical University. </p><p>11, Kalinin Ave., Pyatigorsk, Russia, 357532</p></bio><email xlink:type="simple">similla503@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Пятигорский медико-фармацевтический институт – филиал федерального государственного бюджетного образовательного учреждения высшего образования «Волгоградский государственный медицинский университет» Министерства здравоохранения России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Pyatigorsk Medical and Pharmaceutical Institute – branch of Volgograd State Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>29</day><month>06</month><year>2025</year></pub-date><volume>12</volume><issue>4</issue><fpage>281</fpage><lpage>294</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Оганесян Э.Т., Руковицина В.М., Поздняков Д.И., Аджиахметова С.Л., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Оганесян Э.Т., Руковицина В.М., Поздняков Д.И., Аджиахметова С.Л.</copyright-holder><copyright-holder xml:lang="en">Oganesyan E.T., Rukovitsina V.M., Pozdnyakov D.I., Adzhiakhmetova S.L.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://www.pharmpharm.ru/jour/article/view/1659">https://www.pharmpharm.ru/jour/article/view/1659</self-uri><abstract><p>Изучена антиоксидантная активность 10 синтетических производных дибензилиденацетона (ДБА), молекула которого представляет собой (1Е, 4Е)-1,5-дифенилпента-1,4-диен-3-он. За исключением родоначального соединения, остальные содержат в ароматических фрагментах электронодорные заместители — ОН, ОСН3. Формально молекулу можно рассматривать как систему, содержащую циннамоильный фрагмент, связанный с остатком замещённого стирола.</p><sec><title>Цель</title><p>Цель. Изучение антиоксидантных свойств синтезированных производных ДБА и их квантовохимических параметров с целью выявления закономерностей взаимосвязи «структура–активность».</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Для атомов углерода анализируемых соединений определены Малликеновские заряды (а.е.), связевые числа (Nμ), индекс ненасыщенности (IUA), индекс свободной валентности (Fμ), теоретическая валентность (Vμ) и электронная плотность. Все расчёты осуществлены на рабочей станции с процессором IntelXeonE5-1620 3,5 ГГц, 20 Гб оперативной памяти с использованием полуэмпирического метода РМ7 (программа WinMopac 2016). Для изучаемых соединений по программе WinMopac 7.21. был рассчитан показатель энергии ионизации. Для оценки возможной фармакологической активности использовалась прогностическая программа Way2Drug PASS Online. Антиоксидантную активность анализируемых соединений оценивали in vitro (DPPH и ABTS тесты), а также in vivo (определение активности супероксиддисмутазы (СОД) и концентрации активных продуктов, реагирующих с 2-тиобарбитуровой кислотой (ТБК-АП) у крыс линии Wistar без патологии).</p></sec><sec><title>Результаты</title><p>Результаты. Предварительно был осуществлён анализ возможных видов биологической активности синтезированных производных ДБА по программе Way2Drug PASS Online который показал, что для всех структур характерна противоопухолевая активность, что, по-видимому, обусловлено в том числе и антиоксидантными свойствами. Данный вид активности экспериментально определялся по 4 тестам — DPPH и ABTS (in vitro) и по влиянию на СОД и ТБК-АП (на животных). Анализ полученных данных позволил установить, что наиболее активными антиоксидантами являются соединения 5, 6 и 8, содержащие фенольные гидроксигруппы. В структуре 8 гидроксигруппа с обеих сторон окружена ОСН3-радикалами, то есть она является пространственно затруднённой и, следовательно, образуемый им феноксильный радикал наиболее устойчив. Сопоставление значений найденных квантовохимических параметров показывает, что наиболее информативными с точки зрения изучения взаимосвязи «структура–активность» являются Малликеновские заряды (а.е.), электронная плотность на атомах углерода, а также индексы IUA и Fμ.</p></sec><sec><title>Заключение</title><p>Заключение. Структурные особенности полученных производных 1,5-дифенилпента-1,4-диен-3-она, а также природа образуемых свободных радикалов в использованных биологических тестах однозначно свидетельствуют о том, что анализируемый класс соединений можно считать перспективными антиоксидантами.</p></sec></abstract><trans-abstract xml:lang="en"><p>The antioxidant activity of 10 synthetic dibenzylideneacetone (DBA) derivatives has been studied. Except for the base compound, all other derivatives contain electron-bearing substituents, such as OH and OCH3, on aromatic fragments. Formally, DBA can be considered a system containing a cinnamoyl moiety linked to a substituted styrene residue.</p><p>The aim of the study was to investigate antioxidant properties of the synthesized DBA derivatives and to analyze their quantum chemical parameters revealing the regularities of the «structure–activity» relationship.</p><sec><title>Materials and methods</title><p>Materials and methods. For the carbon atoms of the analyzed compounds, Mulliken charges (AUs), bond numbers (Nms), an unsaturation index (IUA), a free valence index (Fr), a theoretical valence (TV) and the electron density were determined. All calculations were performed on a workstation with an Intel Xeon E5-1620 3.5GHz processor and 20GB RAM using a semi-empirical RM7 method and the WinMopac 2016 software. Ionization energies were calculated using the WinMopac 7.21 software for the studied compounds. The Way2Drug PASS Online predictive program was used to evaluate their possible pharmacological activity. The antioxidant activity was evaluated both in vitro (using DPPH and ABTS assays) and in vivo (by measuring a superoxide dismutase (SOD) activity and the concentration of products reacting with 2-thiobarbituric acid (TBA-AP) in Wistar rats without pathology).</p></sec><sec><title>Results</title><p>Results. A preliminary analysis of the possible types of the biological activity of the synthesized DBA derivatives was performed using the Way2Drug PASS Online program. This analysis showed that all the structures have an antitumor activity, which is apparently due to their antioxidant properties. This type of activity was experimentally confirmed by four tests: by DPPH and ABTS in vitro and the effect on SOD and by the TBA-AP in animals. The analysis of the data allowed us to determine that the most active antioxidants are compounds 5, 6, and 8, which contain phenolic hydroxyl groups. In these compounds, the 8-hydroxy group is surrounded by OCH3 radicals on both sides, making it spatially blocked and, therefore, the phenoxyl radical it forms is the most stable. A comparison of the values of the quantum chemical parameters found shows that the most informative for studying the structure–activity relationship are the Mulliken charges (AUs), electron density on carbon atoms, and also their IUA and Fr.</p></sec><sec><title>Conclusion</title><p>Conclusion. The structural features of the 1,5-diphenylpent-1,4-diene-3-one derivatives and the nature of free radicals formed during biological tests indicate that this class of compounds can be considered promising as antioxidants.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>квантовохимические параметры</kwd><kwd>антиоксиданты</kwd><kwd>производные 1</kwd><kwd>5-дифенилпента-1</kwd><kwd>4-диен-3-она</kwd><kwd>противоопухолевые свойства</kwd></kwd-group><kwd-group xml:lang="en"><kwd>quantum chemical parameters</kwd><kwd>antioxidants</kwd><kwd>1</kwd><kwd>5-diphenylpent-1</kwd><kwd>4-dien-3-one derivatives</kwd><kwd>antitumor properties</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Данное исследование не имело финансовой поддержки от сторонних организаций.</funding-statement><funding-statement xml:lang="en">This study had no financial support from outside organizations.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">de Almeida A.J.P.O., de Oliveira J.C.P.L., da Silva Pontes L.V., de Souza Júnior J.F., Gonçalves T.A.F., Dantas S.H., de Almeida Feitosa M.S., Silva A.O., de Medeiros I.A. 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