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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="en"><front><journal-meta><journal-id journal-id-type="publisher-id">chemicallytech</journal-id><journal-title-group><journal-title xml:lang="en">Fine Chemical Technologies</journal-title><trans-title-group xml:lang="ru"><trans-title>Тонкие химические технологии</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2410-6593</issn><issn pub-type="epub">2686-7575</issn><publisher><publisher-name>MIREA – Russian Technological University (RTU MIREA).</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.32362/2410-6593-2020-15-5-36-45</article-id><article-id custom-type="elpub" pub-id-type="custom">chemicallytech-1648</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="en"><subject>CHEMISTRY AND TECHNOLOGY OF MEDICINAL COMPOUNDS AND BIOLOGICALLY ACTIVE SUBSTANCES</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ХИМИЯ И ТЕХНОЛОГИЯ ЛЕКАРСТВЕННЫХ ПРЕПАРАТОВ И БИОЛОГИЧЕСКИ АКТИВНЫХ СОЕДИНЕНИЙ</subject></subj-group></article-categories><title-group><article-title>Cationic amphiphiles based on malonic acid amides as transfection mediators</article-title><trans-title-group xml:lang="ru"><trans-title>Катионные амфифилы на основе амидов малоновой кислоты в качестве медиаторов трансфекции</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5073-2873</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Романова</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Romanova</surname><given-names>N. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Романова Надежда Александровна, магистрант кафедры химии и технологии биологически активных соединений, медицинской и органической химии им. Н.А. Преображенского</p><p>119571, Россия, Москва, пр-т Вернадского, д. 86</p></bio><bio xml:lang="en"><p>Nadezhda A. Romanova, Master Student, N.A. Preobrazhensky Department of Chemistry and Technology of Biologically Active Compounds, Medicinal and Organic Chemistry</p><p>86, Vernadskogo pr., Moscow, 119571, Russia</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/0000-0003-1702-9435</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Буданова</surname><given-names>У. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Budanova</surname><given-names>U. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Буданова Ульяна Александровна, кандидат химических наук, ассистент кафедры химии и технологии биологически активных соединений, медицинской и органической химии им. Н.А. Преображенского. Scopus Author ID 14622352500, ResearcherID E-1659-2014</p><p>119571, Россия, Москва, пр-т Вернадского, д. 86</p></bio><bio xml:lang="en"><p>Ulyana A. Budanova, Cand. of Sci. (Chemistry), Assistant, N.A. Preobrazhensky Department of Chemistry and Technology of Biologically Active Compounds, Medicinal and Organic Chemistry. Scopus Author ID 14622352500, ResearcherID E-1659-2014</p><p>86, Vernadskogo pr., Moscow, 119571, Russia</p></bio><email xlink:type="simple">c-221@yandex.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/0000-0002-7027-378X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Себякин</surname><given-names>Ю. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Sebyakin</surname><given-names>Yu. L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Себякин Юрий Львович, доктор химических наук, профессор кафедры химии и технологии биологически активных соединений, медицинской и органической химии им. Н.А. Преображенского. Scopus Author ID 6701455145, ResearcherID T-2835-2019</p><p>119571, Россия, Москва, пр-т Вернадского, д. 86</p></bio><bio xml:lang="en"><p>Yury L. Sebyakin, Dr. of Sci. (Chemistry), Professor, N.A. Preobrazhensky Department of Chemistry and Technology of Biologically Active Compounds, Medicinal and Organic Chemistry. Scopus Author ID 6701455145, ResearcherID T-2835-2019</p><p>86, Vernadskogo pr., Moscow, 119571, Russia</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>МИРЭА – Российский технологический университет (Институт тонких химических технологий имени М.В. Ломоносова)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>MIREA – Russian Technological University (M.V. Lomonosov Institute of Fine Chemical Technologies)</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>14</day><month>11</month><year>2020</year></pub-date><volume>15</volume><issue>5</issue><fpage>36</fpage><lpage>45</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Romanova N.A., Budanova U.A., Sebyakin Y.L., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Романова Н.В., Буданова У.А., Себякин Ю.Л.</copyright-holder><copyright-holder xml:lang="en">Romanova N.A., Budanova U.A., Sebyakin Y.L.</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.finechem-mirea.ru/jour/article/view/1648">https://www.finechem-mirea.ru/jour/article/view/1648</self-uri><abstract><sec><title>Objectives</title><p>Objectives. The aim of this work is to synthesize cationic amphiphiles based on malonic acid amides. The target compounds should contain saturated and unsaturated alkyl chains in the hydrophobic portion, and one or two positive charges in the polar head as created by ethylenediamine and amino acid L-ornithine. For such cationic amphiphiles, we determined physicochemical properties and transfection efficiency of liposomes based on them.</p></sec><sec><title>Methods</title><p>Methods. The initial compound in the synthesis is diethylmalonate. We used C-alkylation to add the first hydrophobic chain (with octylbromide, dodecylbromide, or octadecylbromide). N-oleylamine was used as the second hydrophobic chain, which was attached at the carboxyl group of the malonic acid via amide bond formation. The polar head was represented by ethylenediamine, which was then attached at the second carboxyl group of the malonic acid. Further, L-ornithine was attached to ethylenediamine to produce cationic lipids with two positive charges in the head group. The structures of the compounds were characterized by infrared spectroscopy, nuclear magnetic resonance spectroscopy, and elemental analysis. Particle size distribution was evaluated by photon correlation spectroscopy. The luciferase test was used to determine transfection efficiency using HeLa cells.</p></sec><sec><title>Results</title><p>Results. We have developed a synthesis scheme to produce new cationic amphiphiles with an asymmetric hydrophobic part. The obtained liposomal particles are approximately 120 nm in size and have a relatively high zeta potential of 29–30 mV.</p></sec><sec><title>Conclusions</title><p>Conclusions. The size of these liposomes allows them to penetrate into cells, which makes it possible to use these compositions for transfection. The high zeta potential shows that the particles are stable. Our results demonstrate that the transfection efficiency of our liposomes (mixed with cholesterol) is comparable to a commercial formulation. Cationic amphiphiles based on malonic acid amides have great potential for liposome development for transfection.</p></sec></abstract><trans-abstract xml:lang="ru"><sec><title>Цели</title><p>Цели. Задача данной работы заключалась в получении катионных амфифилов, являющихся амидами малоновой кислоты. Целевые амфифилы должны содержать насыщенную и ненасыщенную алкильные цепи в гидрофобном блоке, а также один или два положительных заряда в полярной головной части за счет этилендиамина и аминокислоты L-орнитина. Для таких катионных амфифилов должны быть определены физико-химические свойства и трансфекционная активность липосомальных композиций на их основе.</p></sec><sec><title>Методы</title><p>Методы. Исходным соединением в синтезе был диэтиловый эфир малоновой кислоты. С ним проводили реакцию С-алкилирования для присоединения первой гидрофобной цепи (с использованием октилбромида, додецилбромида и октадецилбромида). В качестве второй гидрофобной цепи использовали N-олеиламин, который присоединяли по карбоксильной группе малоновой кислоты путем образования амидной связи. Полярная головная группа была представлена этилендиамином, который присоединяли по оставшейся карбоксильной группе малоновой кислоты. Далее к этилендиамину присоединяли L-орнитин для получения катионных липидов с двумя положительными зарядами в головной группе. Структуры соединений характеризовали с помощью инфракрасной спектроскопии, спектроскопии ядерного магнитного резонанса и элементного анализа. Методом фотонно-корреляционной спектроскопии оценивали распределение частиц по размерам. С помощью люциферазного теста определяли эффективность трансфекции на клеточной линии HeLa.</p></sec><sec><title>Результаты</title><p>Результаты. Разработана схема синтеза новых катионных амифифилов с несимметричным гидрофобным блоком. Полученные на их основе липосомальные частицы имеют размер около 120 нм и обладают достаточно высоким дзета-потенциалом (29–30 мВ).</p></sec><sec><title>Выводы</title><p>Выводы. Размер полученных липосом позволяет им проникать в клетки, что делает возможным использование таких композиций для трансфекции. Высокий дзета-потенциал свидетельствует об их стабильности. Наши результаты показали, что эффективность трансфекции полученными липосомами в смеси с холестерином сопоставима с коммерческим препаратом. Катионные амфифилы на основе амидов малоновой кислоты являются перспективными для разработки трансфекционных липосомальных композиций на их основе.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>катионные липиды</kwd><kwd>амиды малоновой кислоты</kwd><kwd>катионные липосомы</kwd><kwd>трансфекционная активность</kwd><kwd>направленная доставка</kwd><kwd>катионные амфифилы</kwd></kwd-group><kwd-group xml:lang="en"><kwd>cationic lipids</kwd><kwd>malonic acid amides</kwd><kwd>cationic liposomes</kwd><kwd>transfection efficiency</kwd><kwd>targeted delivery</kwd><kwd>cationic amphiphiles</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена при финансовой поддержке Российского фонда фундаментальных исследований (проект № 19-04-00775).</funding-statement><funding-statement xml:lang="en">This work was supported by the Russian Foundation for Basic Research, project No. 19-04-00775; this article has been translated from Russian into English by N. 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