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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">jsms</journal-id><journal-title-group><journal-title xml:lang="ru">Journal of Siberian Medical Sciences</journal-title><trans-title-group xml:lang="en"><trans-title>Journal of Siberian Medical Sciences</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2542-1174</issn><publisher><publisher-name>Federal state budgetary educational institution of higher education "Novosibirsk state medical university" of  Ministry of Health of the Russian Federation (FSBEI HE NSMU MOH Russia)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.31549/2542-1174-2023-7-1-45-52</article-id><article-id custom-type="elpub" pub-id-type="custom">jsms-883</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 ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL RESEARCH</subject></subj-group></article-categories><title-group><article-title>Изучение антибактериальных свойств новых производных кофеина в отношении условно-патогенных бактерий in vitro</article-title><trans-title-group xml:lang="en"><trans-title>Study of the antibacterial properties of new caffeine derivatives against opportunistic pathogenic bacteria in vitro</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3921-4677</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бондарева</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Bondareva</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Бондарева Елена Александровна – ассистент кафедры микробиологии, вирусологии и иммунологии</p><p>Новосибирск</p></bio><bio xml:lang="en"><p>Elena A. Bondareva – Assistant, Department of Microbiology, Virology and Immunology</p><p>Novosibirsk</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/0000-0002-1749-1243</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Решетников</surname><given-names>Д. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Reshetnikov</surname><given-names>D. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Решетников Данила Владимирович – младший научный сотрудник лаборатории медицинской химии</p><p>Новосибирск</p></bio><bio xml:lang="en"><p>Danila V. Reshetnikov – Junior Researcher, Laboratory of Medicinal Chemistry</p><p>Novosibirsk</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/0000-0002-9736-6441</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бурова</surname><given-names>Л. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Burova</surname><given-names>L. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Бурова Любовь Георгиевна – канд. мед. наук, старший преподаватель кафедры микробиологии, вирусологии и иммунологии</p><p>Новосибирск</p></bio><bio xml:lang="en"><p>Lyubov G. Burova – Dr. Sci. (Med.), Senior Lecturer, Department of Microbiology, Virology and Immunology</p><p>Novosibirsk</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/0000-0003-4932-0091</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Патрушев</surname><given-names>С. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Patrushev</surname><given-names>S. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Патрушев Сергей Сергеевич – канд. хим. наук, научный сотрудник лаборатории медицинской химии</p><p>Новосибирск</p></bio><bio xml:lang="en"><p>Sergey S. Patrushev – Cand. Sci. (Chem.), Senior Researcher, Laboratory of Medicinal Chemistry</p><p>Novosibirsk</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/0000-0001-7933-8394</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Захарова</surname><given-names>Л. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Zakharova</surname><given-names>L. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Захарова Людмила Николаевна – канд. мед. наук, доцент кафедры микробиологии, вирусологии и иммунологии</p><p>Новосибирск</p></bio><bio xml:lang="en"><p>Lyudmila N. Zakharova – Cand. Sci. (Med.), Associate Professor, Department of Microbiology, Virology and Immunology</p><p>Novosibirsk</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/0000-0002-1551-3154</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Евстропов</surname><given-names>А. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Evstropov</surname><given-names>A. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Евстропов Александр Николаевич – д-р мед. наук, профессор, заведующий кафедрой микробиологии, вирусологии и иммунологии</p><p>630091, г. Новосибирск, Красный просп., 52</p></bio><bio xml:lang="en"><p>Alexander N. Evstropov – Dr. Sci. (Med.), Professor, Head, Department of Microbiology, Virology and Immunology</p><p>52, Krasny prosp., Novosibirsk, 630091</p></bio><email xlink:type="simple">evstrop@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0761-9696</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шульц</surname><given-names>Э. Э.</given-names></name><name name-style="western" xml:lang="en"><surname>Schults</surname><given-names>E. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Шульц Эльвира Эдуардовна – д-р хим. наук, профессор, заведующий лабораторией медицинской химии</p><p>Новосибирск</p></bio><bio xml:lang="en"><p>Elvira E. Schults – Dr. Sci. (Chem.), Professor, Head, Laboratory of Medicinal Chemistry</p><p>Novosibirsk</p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБОУ ВО «Новосибирский государственный медицинский университет» Минздрава России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Novosibirsk State Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФГБУН Новосибирский институт органической химии им. Н.Н. Ворожцова СО РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>03</day><month>04</month><year>2023</year></pub-date><volume>0</volume><issue>1</issue><fpage>45</fpage><lpage>52</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Бондарева Е.А., Решетников Д.В., Бурова Л.Г., Патрушев С.С., Захарова Л.Н., Евстропов А.Н., Шульц Э.Э., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Бондарева Е.А., Решетников Д.В., Бурова Л.Г., Патрушев С.С., Захарова Л.Н., Евстропов А.Н., Шульц Э.Э.</copyright-holder><copyright-holder xml:lang="en">Bondareva E.A., Reshetnikov D.V., Burova L.G., Patrushev S.S., Zakharova L.N., Evstropov A.N., Schults E.E.</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://jsms.elpub.ru/jour/article/view/883">https://jsms.elpub.ru/jour/article/view/883</self-uri><abstract><sec><title>Введение</title><p>Введение. Невосприимчивость микробов ко многим классам антимикробных препаратов является глобальной угрозой для здоровья человека и обусловливает необходимость поиска новых соединений, обладающих противомикробным действием, с низкой токсичностью и потенциально широким спектром биологической активности.</p></sec><sec><title>Цель</title><p>Цель. Изучить in vitro способность новых производных ксантинов (кофеина, 1-бутилтеобромина и 7-бутилтеофиллина) подавлять рост Staphylococcus (S.) aureus, Bacillus (B.) cereus, Escherichia (E.) coli и Pseudomonas (P.) aeruginosa.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Антибактериальная активность производных ксантинов, синтезированных в лаборатории медицинской химии Новосибирского института органической химии им. Н.Н. Ворожцова СО РАН, изучалась in vitro методом серийных разведений в жидкой питательной среде в отношении культур S. aureus, B. cereus, E. coli и P. aeruginosa.</p></sec><sec><title>Результаты</title><p>Результаты. Три вещества, в том числе исходные субстанции – кофеин и 7-бутилтеофиллин, антибактериальных свойств в отношении тест-микробов не проявили. Все исследованные производные ксантинов не подавляли рост E. coli и P. аeruginosa; 9 соединений, содержащих фрагменты эфиров аминокислот или ацетиленовый заместитель в положении С-8 ксантинового остова, проявили антибактериальную активность в отношении S. aureus и (или) B. cereus.</p></sec><sec><title>Заключение</title><p>Заключение. При изучении способности природного ксантина кофеина и 12 его производных подавлять рост культур условно-патогенных бактерий выявлены антибактериальные свойства у ряда аминокислотных производных в отношении S. aureus и B. cereus. Наилучший эффект продемонстрировали соединения, содержащие фрагменты эфиров альфа- и бета-аминокислот (L-валина и бета-фенил-бета-аланина), что определяет перспективность дальнейших исследований.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Introduction</title><p>Introduction. The resistance of microbes to many classes of antimicrobial drugs is a global threat to human health and necessitates the search for new compounds with antimicrobial activity, with low toxicity and a potentially wide range of biological activity.</p></sec><sec><title>Aim</title><p>Aim. To study in vitro the ability of new xanthine derivatives (caffeine, 1-butyltheobromine and 7-butyltheophylline) to inhibit growth Staphylococcus (S.) aureus, Bacillus (B.) cereus, Escherichia (E.) coli and Pseudomonas (P.) aeruginosa.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. The antibacterial activity of xanthine derivatives synthesized in the Laboratory of Medicinal Chemistry of the N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry was studied in vitro using serial dilutions in a liquid nutrient medium against S. aureus, B. cereus, E. coli and P. aeruginosa cultures.</p></sec><sec><title>Results</title><p>Results. Three substances, including the starting material – caffeine and 7-butyltheophylline, did not show antibacterial properties against test microbes. All xanthine derivatives studied did not inhibit the growth of E. coli and P. aeruginosa; 9 compounds containing fragments of amino acid esters or an acetylene substituent in the position of the C-8 xanthine backbone showed antibacterial activity against S. aureus and (or) B. cereus.</p></sec><sec><title>Conclusion</title><p>Conclusion. When studying the ability of natural xanthine caffeine and 12 of its derivatives to inhibit the growth of cultures of opportunistic bacteria, antibacterial properties against S. aureus and B. cereus were revealed in a number of amino acid derivatives. The best effect was shown by compounds containing fragments of alpha- and beta-amino acid esters (L-valine and beta-phenyl-beta-alanine), which determines the prospects for further research.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>кофеин</kwd><kwd>ксантины</kwd><kwd>антибактериальная активность</kwd><kwd>Staphylococcus aureus</kwd><kwd>Bacillus cereus</kwd><kwd>Escherichia coli</kwd><kwd>Pseudomonas аeruginosa</kwd></kwd-group><kwd-group xml:lang="en"><kwd>caffeine</kwd><kwd>xanthines</kwd><kwd>antibacterial activity</kwd><kwd>Staphylococcus aureus</kwd><kwd>Bacillus cereus</kwd><kwd>Escherichia coli</kwd><kwd>Pseudomonas аeruginosa</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Химическая часть работы выполнена при финансовой поддержке Российского научного фонда (проект № 18-13-00361 П).</funding-statement><funding-statement xml:lang="en">The chemical part of the work was carried out with the financial support of the Russian Science Foundation (project No. 18-13-00361 P).</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">Guo Y., Song G., Sun M., Wang J., Wang Y. 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