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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Russian Journal of Bioorganic Chemistry</journal-id><journal-title-group><journal-title xml:lang="en">Russian Journal of Bioorganic Chemistry</journal-title><trans-title-group xml:lang="ru"><trans-title>Биоорганическая химия</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0132-3423</issn><issn publication-format="electronic">1998-2860</issn><publisher><publisher-name xml:lang="en">The Russian Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">683103</article-id><article-id pub-id-type="doi">10.31857/S0132342325010126</article-id><article-id pub-id-type="edn">LYSDQL</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Статьи</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Synthesis and study of antibacterial and anti-mao activity of new pyrazoline and pyrimidine derivatives based on (e)-1-(4-amyloxyphenyl)-3-arylprop-2-en-1-ones</article-title><trans-title-group xml:lang="ru"><trans-title>Синтез, изучение антимикробной, противогрибковой и антимоноаминоксидазной активности новых пиразолиновых и пиримидиновых производных на основе (e)-1-(4-амилоксифенил)-3-арилпроп-2-ен-1-онов</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Isakhanyan</surname><given-names>A. U.</given-names></name><name xml:lang="ru"><surname>Исаханян</surname><given-names>А. У.</given-names></name></name-alternatives><address><country country="AM">Armenia</country></address><email>anush.isakhanyan.51@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Hovasyan</surname><given-names>Z. A.</given-names></name><name xml:lang="ru"><surname>Овасян</surname><given-names>З. А.</given-names></name></name-alternatives><address><country country="AM">Armenia</country></address><email>anush.isakhanyan.51@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Madoyan</surname><given-names>R. A.</given-names></name><name xml:lang="ru"><surname>Мадоян</surname><given-names>Р. A.</given-names></name></name-alternatives><address><country country="AM">Armenia</country></address><email>anush.isakhanyan.51@mail.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Sukiasyan</surname><given-names>A. G.</given-names></name><name xml:lang="ru"><surname>Сукиасян</surname><given-names>A. Г.</given-names></name></name-alternatives><address><country country="AM">Armenia</country></address><email>anush.isakhanyan.51@mail.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Chailyan</surname><given-names>S. G.</given-names></name><name xml:lang="ru"><surname>Чаилян</surname><given-names>С. Г.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>anush.isakhanyan.51@mail.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Grigoryan</surname><given-names>A. S.</given-names></name><name xml:lang="ru"><surname>Григорян</surname><given-names>А. С.</given-names></name></name-alternatives><address><country country="AM">Armenia</country></address><email>anush.isakhanyan.51@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Gasparyan</surname><given-names>H. V.</given-names></name><name xml:lang="ru"><surname>Гаспарян</surname><given-names>Г. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>anush.isakhanyan.51@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Harutyunyan</surname><given-names>A. A.</given-names></name><name xml:lang="ru"><surname>Арутюнян</surname><given-names>А. А.</given-names></name></name-alternatives><address><country country="AM">Armenia</country></address><email>anush.isakhanyan.51@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Scientific and Technological Center for Organic and Pharmaceutical Chemistry of the National Academy of Sciences of the Republic of Armenia</institution></aff><aff><institution xml:lang="ru">Научно-технологический центр органической и фармацевтической химии Национальной академии наук Республики Армения</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Institute of Biochemistry named after G. Buniatyan of the National Academy of Sciences of the Republic of Armenia</institution></aff><aff><institution xml:lang="ru">Институт биохимии им. Г. Буниатяна Национальной академии наук Республики Армения</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2025-02-15" publication-format="electronic"><day>15</day><month>02</month><year>2025</year></pub-date><volume>51</volume><issue>1</issue><issue-title xml:lang="ru"/><fpage>137</fpage><lpage>143</lpage><history><date date-type="received" iso-8601-date="2025-06-05"><day>05</day><month>06</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2025, Russian Academy of Sciences</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2025, Российская академия наук</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="en">Russian Academy of Sciences</copyright-holder><copyright-holder xml:lang="ru">Российская академия наук</copyright-holder></permissions><self-uri xlink:href="https://journals.eco-vector.com/0132-3423/article/view/683103">https://journals.eco-vector.com/0132-3423/article/view/683103</self-uri><abstract xml:lang="en"><p>Five chalcones from the pentyloxyacetophenone series with aromatic aldehydes have been synthesized. New pyrazoline and pyrimidine derivatives have been successfully synthesized on their basis The antimicrobial activity of 15 synthesized compounds was studied. Antimicrobial and antifungal activity was determined by the agar diffusion method. Studies have shown that out of 15 compounds, 9 exhibit high antifungal activity against pathogenic fungi of the genus Candida, and some compounds exhibit antagonistic activity against pathogenic strains of <italic>Escherichia coli</italic> and <italic>Staphylococcus aureus</italic>. Studies of anti-monoamine oxidase activity showed that two compounds showed moderate activity at a concentration of 1.0 mM, inhibiting the deamination of 5-oxytryptamine (serotonin) by 68 and 65%, respectively, and the remaining compounds showed weak anti-MAO activity.</p></abstract><trans-abstract xml:lang="ru"><p>Синтезированы<bold> </bold>пять халконов из ряда пентилоксиацетофенона<bold> </bold>с ароматическими альдегидами. На их основе успешно получены новые пиразолиновые и пиримидиновые производные. Изучена антимикробная активность 15 синтезированных соединений. Антимикробная и противогрибковая активность определена по методу диффузии в агар. Показано, что 9 из 15 изученных соединений проявляют высокую противогрибковую активность по отношению к патогенным грибам <italic>Candida albicans</italic>, а некоторые соединения продемонстрировали антагонистическую<bold> </bold>активность по отношению к патогенным штаммам <italic>Escherichia coli</italic> и <italic>Staphylococcus aureus</italic>. Исследования антимоноаминоксидазной активности показали, что два соединения проявили умеренную активность в концентрации 1.0 мМ, угнетая дезаминирование 5<bold>-</bold>окситриптамина (серотонин) на 68 и 65% соответственно, а остальные соединения проявили слабое антимоноаминоксидазное действие.</p></trans-abstract><kwd-group xml:lang="en"><kwd>antibacterial</kwd><kwd>antifungal</kwd><kwd>anti-MAO activity</kwd><kwd>chalcone</kwd><kwd>pyrazoline</kwd><kwd>pyrimidine</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>антимикробная</kwd><kwd>противогрибковая</kwd><kwd>анти-МАО-активность</kwd><kwd>халкон</kwd><kwd>пиразолин</kwd><kwd>пиримидин</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Shivananda M.K., Holla B.S. // J. Chem. Pharm. Res. 2017. V. 9. № 6. 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