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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">vestich</journal-id><journal-title-group><journal-title xml:lang="ru">Известия Национальной академии наук Беларуси. Серия химических наук</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of the National Academy of Sciences of Belarus, Chemical Series</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1561-8331</issn><issn pub-type="epub">2524-2342</issn><publisher><publisher-name>The Republican Unitary Enterprise Publishing House "Belaruskaya Navuka"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.29235/1561-8331-2025-61-3-206-217</article-id><article-id custom-type="elpub" pub-id-type="custom">vestich-966</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>ОРГАНИЧЕСКАЯ ХИМИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORGANIC CHEMISTRY</subject></subj-group></article-categories><title-group><article-title>4,5-дихлоризотиазол-3-карбоксилаты и пиридинсодержащие производные бензоциклопентахинолинов и бензакридинов: синтез и квантово-химическое моделирование физико-химических свойств и завимости структура–биологическая активность</article-title><trans-title-group xml:lang="en"><trans-title>4,5-dichlorizothiazole-3-carboxylates and pyridine-containing derivatives of benzocyclopentaquinolines and benzacridines: synthesis and quantumchemical modeling of physicochemical properties and dependence structure–biological activity</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Дикусар</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Dikusar</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Дикусар Евгений Анатольевич – кандидат химических наук, старший научный сотрудник</p><p>ул. Сурганова, 13, 220072, Минск</p></bio><bio xml:lang="en"><p>Dikusar Evgenij A. – Ph. D. (Chemistry), Senior Researcher</p><p>13, Surganov Str., 220072, Minsk</p></bio><email xlink:type="simple">dikusar@ifoch.bas-net.by</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Акишина</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Akishina</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Акишина Екатерина Александровна – научный сотрудник</p><p>ул. Сурганова, 13, 220072, Минск</p></bio><bio xml:lang="en"><p>Akishina Ekaterina A. – Researcher</p><p>13, Surganov Str., 220072, Minsk</p></bio><email xlink:type="simple">che.semenovaea@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ковальская</surname><given-names>С. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Kovalʼskaya</surname><given-names>S. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ковальская Светлана Степановна – кандидат химических наук, старший научный сотрудник</p><p>ул. Сурганова, 13, 220072, Минск</p></bio><bio xml:lang="en"><p>Koval'skaya Svetlana S. – Ph. D. (Chemistry), Senior Researcher.</p><p>13, Surganov Str., 220072, Minsk</p></bio><email xlink:type="simple">kovalskaya_61@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Жуковская</surname><given-names>Н. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Zhukovskaya</surname><given-names>N. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Жуковская Нелия Александровна – научный сотрудник</p><p>ул. Сурганова, 13, 220072, Минск</p></bio><bio xml:lang="en"><p>Zhukovskaya Neliya A. – Researcher</p><p>13, Surganov Str., 220072, Minsk</p></bio><email xlink:type="simple">neliya_zhukovskaya@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Поткин</surname><given-names>В. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Potkin</surname><given-names>V. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Поткин Владимир Иванович – академик, доктор химических наук, профессор, заведующий лабораторией</p><p>ул. Сурганова, 13, 220072, Минск</p></bio><bio xml:lang="en"><p>Potkin Vladimir I. – Academician, Dr. Sc. (Chemistry), Professor, Head of the Laboratory</p><p>13, Surganov Str., 220072, Minsk</p></bio><email xlink:type="simple">potkin@ifoch.bas-net.by</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт физико-органической химии Национальной академии наук Беларуси</institution></aff><aff xml:lang="en"><institution>Institute of Physical Organic Chemistry of the National Academy of Sciences of Belarus</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>29</day><month>08</month><year>2025</year></pub-date><volume>61</volume><issue>3</issue><fpage>206</fpage><lpage>217</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Дикусар Е.А., Акишина Е.А., Ковальская С.С., Жуковская Н.А., Поткин В.И., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Дикусар Е.А., Акишина Е.А., Ковальская С.С., Жуковская Н.А., Поткин В.И.</copyright-holder><copyright-holder xml:lang="en">Dikusar E.A., Akishina E.A., Kovalʼskaya S.S., Zhukovskaya N.A., Potkin V.I.</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://vestichem.belnauka.by/jour/article/view/966">https://vestichem.belnauka.by/jour/article/view/966</self-uri><abstract><p>Бензоциклопентахинолины и бензакридины получали путем реакции каскадной трехкомпонентной конденсации замещенных альдегидов, 1,3-циклоалкилдикетонов и 2-нафтиламина или 1,5-диаминонафталина с выходом 60–88 %. Синтезированные  полиазотистые  гетероциклические  соединения  представляют  интерес для биотестирования на различные виды биологической активности и в качестве объемных лигандов для получения на их основе металлокомплексов – перспективных катализаторов реакций кросс-сочетания. Методом квантово-химического моделирования путем проведения неэмпирических расчетов с уровнем теории HF/6-31G была проведена полная оптимизация геометрических параметров и определена электронная структура 18 сложных эфиров 4,5-дихлортиазолкарбоновой кислоты с замещенными бензоциклопентахинолинами и бензакридинами.</p></abstract><trans-abstract xml:lang="en"><p>Benzocyclopentaquinolines and benzacridines were obtained via cascade three-component condensation of substituted aldehydes, 1,3-cycloalkyldiketones and 2-naphthylamine or 1,5-diaminonaphthalene with a yield of 60–88 %. The synthesized polynitrogen heterocyclic compounds are of interest for biotesting for various types of activity and also as bulk ligands for obtaining metal complexes – promising catalysts for cross-combination reactions. Using the quantum chemical modeling method by conducting nonempirical calculations with a theory level of HF/6-31G, a complete optimization of geometric parameters was carried out and the electronic structure of 18 esters of 4,5-dichlorothiazole carboxylic acid with substituted benzocyclopentaquinolines and benzoacridines was determined.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>замещенные альдегиды</kwd><kwd>1</kwd><kwd>3-циклоалкилдикетоны</kwd><kwd>сложные эфиры 4</kwd><kwd>5-дихлортиазолкарбоновой кислоты</kwd><kwd>2-нафтиламин</kwd><kwd>1</kwd><kwd>5-диаминонафталин</kwd><kwd>каскадная трехкомпонентная конденсация</kwd><kwd>бензоциклопентахинолины</kwd><kwd>бензакридины</kwd><kwd>бисбензакридины</kwd><kwd>квантово-химическое моделирование</kwd><kwd>неэмпирические расчеты</kwd><kwd>метод Фукуи</kwd></kwd-group><kwd-group xml:lang="en"><kwd>substituted aldehydes</kwd><kwd>1</kwd><kwd>3-cycloalkyldiketones</kwd><kwd>esters of 4</kwd><kwd>5-dichlorothiazole carboxylic acid</kwd><kwd>2-naphthylamine</kwd><kwd>1</kwd><kwd>5-diaminonaphthalene</kwd><kwd>cascade three-component condensation</kwd><kwd>benzocyclopentaquinolines</kwd><kwd>benzacridines</kwd><kwd>bisbenzacridines</kwd><kwd>quantum chemical-modeling</kwd><kwd>nonempirical calculations</kwd><kwd>Fukui method</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена при финансовой поддержке Белорусского республиканского фонда фундаментальных исследований (проект Х22-038).</funding-statement><funding-statement xml:lang="en">The work was carried out with the financial support of the Belarusian Republican Foundation for Fundamental Research (prodject X22-038).</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">Синтез производных бисакридина с пиридиновым и 1,2-азольными фрагментами / Е. 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