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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">antibiotics</journal-id><journal-title-group><journal-title xml:lang="ru">Антибиотики и Химиотерапия</journal-title><trans-title-group xml:lang="en"><trans-title>Antibiot Khimioter = Antibiotics and Chemotherapy</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0235-2990</issn><publisher><publisher-name>ООО «Издательство ОКИ»</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.37489/0235-2990-2023-68-7-8-4-10</article-id><article-id custom-type="elpub" pub-id-type="custom">antibiotics-1057</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>ЭКСПЕРИМЕНТАЛЬНЫЕ СТАТЬИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Experimental Research</subject></subj-group></article-categories><title-group><article-title>Определение антиэшерихиозной активности производного пиримидина 3-[2-[(4,6-диметилпиримидин-2- ил)амино]-2-оксоэтил]хиназолин-4(3Н)-он</article-title><trans-title-group xml:lang="en"><trans-title>Determination of the Anti-Escherichial Activity of the Pyrimidine Derivative 3-[2-[(4,6-dimethylpyrimidin-2- yl)amino]-2-oxoethyl]quinazolin-4(3H)-one</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9994-4751</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Цибизова</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Tsibizova</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Цибизова Александра Александровна — к. фарм. н., доцент кафедры фармакогнозии, фармацевтической технологии и биотехнологии </p><p>Астрахань</p></bio><bio xml:lang="en"><p>Alexandra A. Tsibizova — Ph. D. in Pharmaceutics, Associate Professor of the Department of Pharmacognosy, Pharmaceutical Technology, and Biotechnology</p><p>Astrakhan</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2998-2864</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ясенявская</surname><given-names>А. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Yasenyavskaya</surname><given-names>A. L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ясенявская Анна Леонидовна — к. м. н., доцент, руководитель Научно-исследовательского центра, доцент кафедры фармакогнозии, фармацевтической технологии и биотехнологии</p><p>Бакинская ул., 121. Астраханский ГМУ, г. Астрахань</p></bio><bio xml:lang="en"><p>Anna L. Yasenyavskaya — Ph. D. in Medicine, Associate Professor, Head of the Research Center, Associate Professor of the Department of Pharmacognosy, Pharmaceutical Technology, and Biotechnology</p><p>Astrakhan</p></bio><email xlink:type="simple">yasen_9@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/0000-0001-7574-3923</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Тюренков</surname><given-names>И. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Tyurenkov</surname><given-names>I. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Тюренков Иван Николаевич — д. м. н., профессор, член-корреспондент Российской академии наук, заведующий кафедрой фармакологии и фармации Института непрерывного медицинского и фармацевтического образования факультета усовершенствования врачей </p><p>Волгоград</p></bio><bio xml:lang="en"><p>Ivan N. Tyurenkov — D. Sc. in Medicine, Professor, Corresponding Member of the Russian Academy of Sciences, Head of the Department of Pharmacology and Pharmacy of the Institute of Continuing Medical and Pharmaceutical Education of the Faculty of Advanced Training of Doctors</p><p>Volgograd</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4721-0959</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Озеров</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Ozerov</surname><given-names>А. А.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Озеров Александр Александрович — д. хим. н., профессор, заведующий кафедрой фармацевтической и токсикологической химии</p><p>Волгоград</p></bio><bio xml:lang="en"><p>Alexandr A. Ozerov — D. Sc. in Chemistry, Professor, Head of the Department of Pharmaceutical and Toxicological Chemistry</p><p>Volgograd</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5336-4455</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Самотруева</surname><given-names>М. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Samotrueva</surname><given-names>M. А.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Самотруева Марина Александровна — д. м. н., профессор, заведующая кафедрой фармакогнозии, фармацевтической технологии и биотехнологии</p><p>Астрахань</p></bio><bio xml:lang="en"><p>Marina A. Samotrueva — D. Sc. in Medicine, Professor, Head of the Department of Pharmacognosy, Pharmaceutical Technology, and Biotechnology </p><p>Astrakhan</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Астраханский государственный медицинский университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Astrakhan State Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Волгоградский государственный медицинский университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Volgograd State Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>24</day><month>12</month><year>2023</year></pub-date><volume>68</volume><issue>7-8</issue><fpage>4</fpage><lpage>10</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Цибизова А.А., Ясенявская А.Л., Тюренков И.Н., Озеров А.А., Самотруева М.А., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Цибизова А.А., Ясенявская А.Л., Тюренков И.Н., Озеров А.А., Самотруева М.А.</copyright-holder><copyright-holder xml:lang="en">Tsibizova A.A., Yasenyavskaya A.L., Tyurenkov I.N., Ozerov А.А., Samotrueva M.А.</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.antibiotics-chemotherapy.ru/jour/article/view/1057">https://www.antibiotics-chemotherapy.ru/jour/article/view/1057</self-uri><abstract><p>Цель исследования — изучение противомикробной активности производного пиримидина 3-[2-[(4,6-диметилпиримидин-2-ил)амино]-2-оксоэтил]хиназолин-4(3Н)-он в отношении Escherichia coli. Изучение противомикробной активности проводили в условиях in vitro путём серийных разведений пиримидинового соединения с последующим определением минимальной подавляющей концентрации 3-[2-[(4,6-диметилпиримидин-2- ил)амино]-2-оксоэтил]хиназолин-4(3н)-он (VМА-13-14) и in vivo на модели генерализованной эшерихиозной инфекции. Исследование противомикробной активности в условиях in vivo проводили на 40 мышах линии CBA массой 19–20 г. Все манипуляции с животными выполняли в соответствии с требованиями нормативной документации, регламентирующей содержание лабораторных животных и работу с ними. Противомикробную активность пиримидинового соединения 3-[2-[(4,6-диметилпиримидин-2-ил)амино]-2-оксоэтил]хиназолин-4(3Н)-он в отношении E.coli в условиях in vitro оценивали по показателям выживаемости мышей, обсеменённости крови и внутренних органов (печень, селезёнка, лёгкие, головной мозг), а также общего количества лейкоцитов и лейкограммы. В эксперименте установлено, что пиримидиновое соединение 3-[2-[(4,6-диметилпиримидин-2- ил)амино]-2-оксоэтил]хиназолин-4(3н)-он оказывает противомикробную активность в отношении E.coli: в условиях in vitro оказывает бактерицидное действие в концентрации 128 мкг/мл; в условиях in vivo оказывает противомикробное действие в условиях генерализованной инфекции при введении 50 мг/кг/сут в течение10 дней. Противомикробный эффект 3-[2-[(4,6-диметилпиримидин-2-ил)амино]-2-оксоэтил]хиназолин-4(3н)-он сопоставим с цефтазидимом, который является препаратом выбора при лечении эшерихиозной инфекции.</p></abstract><trans-abstract xml:lang="en"><p>The aim of this study was to investigate the antimicrobial activity of the pyrimidine derivative 3-[2-[(4,6-dimethylpyrimidin-2-yl)amino]-2-oxoethyl]quinazolin-4(3H)-one against Escherichia coli. The study of antimicrobial activity was carried out in vitro by serial dilutions of the pyrimidine compound, followed by determination of the minimum inhibitory concentration of 3-[2-[(4,6-dimethylpyrimidin-2-yl)amino]-2-oxoethyl]quinazolin-4(3n)-one (VMA-13-14) and in vivo on the model of generalized E.coli infection. The study of antimicrobial activity in vivo was carried out on 40 CBA mice weighing 19–20 g. All manipulations with animals were performed in accordance with the requirements of the regulatory documentation governing the maintenance of laboratory animals and work involving them. The antimicrobial activity of the pyrimidine compound 3-[2-[(4,6-dimethylpyrimidin-2-yl)amino]-2-oxoethyl]quinazolin-4(3H)-one against E.coli in vitro was evaluated in terms of mouse survival, contamination of blood and internal organs (liver, spleen, lungs, brain), as well as the total number of leukocytes and leukograms. The experiment determined that the pyrimidine compound 3-[2-[(4,6-di- methylpyrimidin-2-yl)amino]-2-oxoethyl]quinazolin-4(3n)-one demonstrates antimicrobial activity against E.coli: in vitro, it has a bactericidal effect at a concentration of 128 µg/ml; in vivo, it has an antimicrobial effect in conditions of generalized infection with the introduction of 50 mg/kg/day for 10 days. The antimicrobial effect of 3-[2-[(4,6-dimethylpyrimidin-2- yl)amino]-2-oxoethyl]quinazolin-4(3n)-one is comparable to ceftazidime, which is the drug of choice in the treatment of E.coli infection.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>Escherichia coli</kwd><kwd>генерализованная эшерихиозная инфекция</kwd><kwd>бактерицидная активность</kwd><kwd>противомикробная активность</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Escherichia coli</kwd><kwd>generalized escherichial infection</kwd><kwd>bactericidal activity</kwd><kwd>antimicrobial activity</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">MacGowan A., Macnaughton E. Antibiotic resistance. Medicine. 2017; 10 (45): 622–628. doi: 10.1016/j.mpmed.2017.07.006.</mixed-citation><mixed-citation xml:lang="en">MacGowan A., Macnaughton E. Antibiotic resistance. 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