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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">10.37489/0235-2990-2023-68-3-4-30-34</article-id><article-id custom-type="elpub" pub-id-type="custom">antibiotics-1016</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>ОРИГИНАЛЬНЫЕ СТАТЬИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL PAPERS</subject></subj-group></article-categories><title-group><article-title>Оценка острой токсичности производного хиназолина3-[2-оксо-2-(4-фенилпиперазин-1-ил)этил]хиназолин-4(3h)-он, активного в отношении условно-патогенных микроорганизмов</article-title><trans-title-group xml:lang="en"><trans-title>Assessment of Acute Toxicity of Quinazoline Derivative 3-[2-oxo-2-(4-Phenylpiperazine-1-yl)Ethyl]quinazoline-4(3h)-oh Active against Opportunistic Microorganisms</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3867-8330</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Габитова</surname><given-names>Н. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Gabitova</surname><given-names>N. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Габитова Нармина Муталлимага-кызы — ассистент кафедры фармакогнозии, фармацевтической технологии и биотехнологии</p><p>Бакинская ул., 121, г. Астрахань</p></bio><bio xml:lang="en"><p>Narmina M. Gabitova — Assistant of the Department</p><p>121 Bakinskaya st.,  Astrakhan, Russia. </p></bio><email xlink:type="simple">narmina85@inbox.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/0000-0002-9994-4751</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>Aleksandra A. Tsibizova — Ph. D. in Pharmaceuticals, Senior teacher of the Department</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/0000-0002-4721-0959</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>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Озеров Александр Александрович — д. х. н., профессор, заведующий кафедрой фармацевтической и токсикологической химии</p><p>Волгоград</p></bio><bio xml:lang="en"><p>Aleksandr A. Ozerov — D. Sc. in Chemistry, Professor, Head of Department</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. A.</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, Head of Department, 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">ФГБОУ ВО «Астраханский государственный медицинский университет» Минздрава России<country>Россия</country></aff><aff xml:lang="en">Astrakhan State Medical University of the Ministry of Health of the Russian Federation<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">ФГБОУ ВО «Волгоградский государственный медицинский университет» Минздрава России<country>Россия</country></aff><aff xml:lang="en">Volgograd State Medical University of the Ministry of Health of the Russian Federation<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>18</day><month>07</month><year>2023</year></pub-date><volume>68</volume><issue>3-4</issue><fpage>30</fpage><lpage>34</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Габитова Н.М., Цибизова А.А., Озеров А.А., Самотруева М.А., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Габитова Н.М., Цибизова А.А., Озеров А.А., Самотруева М.А.</copyright-holder><copyright-holder xml:lang="en">Gabitova N.M., Tsibizova A.A., Ozerov A.A., Samotrueva M.A.</copyright-holder><license 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/1016">https://www.antibiotics-chemotherapy.ru/jour/article/view/1016</self-uri><abstract><p>Исследование посвящено изучению острой токсичности нового хиназолинового соединения — 3-[2-Оксо-2-(4-фенилпиперазин-1-ил)этил]хиназолин-4(3H)-он (VMA-10-21), перспективного в качестве противомикробного средства, активного в отношении условно-патогенных микроорганизмов. Цель. Оценка острой токсичности производного хиназолина 3-[2-оксо-2-(4-фенилпиперазин-1ил)этил]хиназолин-4(3h)-он, проявляющего противомикробную активность. Материал и методы. Эксперименты проводили на нелинейных половозрелых крысах-самках с массой тела 180–190 г. Особи находились в стадии диэструс. Крысы были разделены на 4 группы случайной выборкой, в каждой группе находилось по 6 особей и до начала эксперимента в течение недели содержались в клетках, привыкая к лабораторным условиям: животные, получавшие интрагастрально эквиобъём дистиллированной воды (контроль); опытные животные, получавшие соединение VMA-10-21 в дозах 1000, 2000; 5000 мг/кг (дозы выбраны исходя из того, что исследование токсичности производных пиримидина со схожим химическим строением показали их относительную безопасность и отсутствие летальности от дозы 500 мг/кг). Результаты. Оценка острой токсичности производного хиназолина 3-[2-оксо-2-(4-фенилпиперазин-1ил)этил]хиназолин-4(3h)-он при интрагастральном введении показала, что данное соединение относится к 5 классу токсичности и является малотоксичным. За LD₅₀ принимается максимальная доза — 5000 мг/кг, при введении которой наблюдались изменения со стороны гемоглобина, количества лейкоцитов и тромбоцитов, а также общего белка, что может свидетельствовать о возможном развитии патологических изменений кроветворной и гепатобилиарной систем. Выводы. Хиназолиновое производное 3-[2-оксо-2-(4-фенилпиперазин-1ил)этил]хиназолин-4(3h)-он при интрагастральном введении является малотоксичным и относится к 5 классу токсичности, в связи с чем за LD₅₀ принимается максимальная доза — 5000 мг/кг. Однако учитывая факт наличия изменений со стороны гематологических и биохимических показателей, данное соединение нуждается в детальном изучении в условиях курсового воздействия на организм животных.</p></abstract><trans-abstract xml:lang="en"><p>The study is devoted to the study of acute toxicity of a new quinazoline compound — 3-[2-Oxo-2-(4-phenylpiperazine-1-yl)ethyl]quinazoline-4(3H)-one (VMA-10-21), promising as an antimicrobial agent active against opportunistic microorganisms. Purpose. Assessment of acute toxicity of the quinazoline derivative 3-[2-oxo-2-(4-phenylpiperazine-1yl)ethyl] quinazoline-4(3h)-oh, exhibiting antimicrobial activity. Material and methods. All experiments were carried out on non-linear mature female rats with a body weight of 180–190 g. Female individuals were in the diestrus stage. The rats were divided into groups (n=6) by a random sample, there were 4 individuals in each group and were kept in cages for a week before the experiment, getting used to laboratory conditions: animals receiving intragastric equiobjection of distilled water (control); experimental animals treated with the compound VMA-10-21 at doses of 1000, 2000; 5000 mg/kg (the doses were selected based on the fact that the study of the toxicity of pyrimidine derivatives with a similar chemical structure showed their relative safety and the absence of lethality from a dose of 500 mg/kg). Results. Assessment of acute toxicity of the quinazoline derivative 3-[2-oxo-2-(4-phenylpiperazine-1yl)ethyl]quinazoline-4(3h)-oh with intragastric administration showed that this compound belongs to class 5 toxicity and is low-toxic according to. Under these conditions, and for LD₅₀, the maximum dose is 5000 mg/kg. However, despite the results obtained, when this compound was administered at a dose of 5000 mg/kg, changes in hemoglobin, the number of leukocytes and platelets, as well as total protein were observed, which may indicate the possible development of pathological changes in the hematopoietic and hepatobiliary systems. Conclusion. Thus, the quinazoline derivative 3-[2-oxo-2-(4-phenylpiperazine-1yl)ethyl]quinazoline-4(3h)-oh with intragastric administration is low-toxic and belongs to the 5th class of toxicity, and therefore the maximum dose is 5000 mg/kg for LD₅₀. However, given the fact that there are changes in hematological and biochemical parameters, this compound needs to be studied in detail under the conditions of course effects on the body of animals.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>хиназолиновые производные</kwd><kwd>острая токсичность</kwd><kwd>гематологические показатели</kwd><kwd>биохимические показатели</kwd></kwd-group><kwd-group xml:lang="en"><kwd>quinazoline derivatives</kwd><kwd>acute toxicity</kwd><kwd>hematological parameters</kwd><kwd>biochemical parameters</kwd></kwd-group><funding-group xml:lang="ru"><funding-statement>Научная статья выполнена в рамках государственного задания Министерства здравоохранения РФ в части проведения НИР по теме «Поиск и разработка перспективных соединений с антибактериальной активностью среди производных пиримидина для создания лекарственных препаратов» 48.2-2021.</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">Mass E. 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