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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">10.32362/2410-6593-2018-13-5-14-22</article-id><article-id custom-type="elpub" pub-id-type="custom">chemicallytech-165</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>SELECTION OF PROTECTIVE GROUPS UPON OPTIMIZING THE SYNTHESIS OF γ-PNA BASED ON L-GLU</article-title><trans-title-group xml:lang="ru"><trans-title>ВЫБОР ЗАЩИТНЫХ ГРУПП ПРИ ОПТИМИЗАЦИИ СИНТЕЗА МОНОМЕРОВ γ-ПНК НА ОСНОВЕ L-ГЛУТАМИНОВОЙ КИСЛОТЫ</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Прохоров</surname><given-names>И. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Prokhorov</surname><given-names>I. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>ассистент кафедры биотехнологии и промышленной фармации</p><p>119571, Россия, Москва, пр. Вернадского, 86</p></bio><bio xml:lang="en"><p>Assistant of the Chair of Biotechnology and Industrial Pharmacy</p><p>86, Vernadskogo Pr., Moscow 119571, Russia</p></bio><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мелкумова</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Melkumova</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>студент 5 курса кафедры биотехнологии и промышленной фармации</p><p>119571, Россия, Москва, пр. Вернадского, 86</p></bio><bio xml:lang="en"><p>Master Student of the Chair of Biotechnology and Industrial Pharmacy</p><p>86, Vernadskogo Pr., Moscow 119571, Russia</p></bio><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Абдельбаки</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Abdelbaky</surname><given-names>A. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>аспирант 3 года обучения кафедры биотехнологии и промышленной фармации</p><p>119571, Россия, Москва, пр. Вернадского, 86</p></bio><bio xml:lang="en"><p>Postgraduate Student of the Chair of Biotechnology and Industrial Pharmacy</p><p>86, Vernadskogo Pr., Moscow 119571, Russia</p><p>Assistant Lecturer, Department of Biochemistry</p><p>Fayoum 63514, Egypt</p></bio><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Есипова</surname><given-names>О. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Esipova</surname><given-names>O. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>доцент, кандидат химических наук, доцент кафедры биотехнологии и промышленной фармации</p><p>119571, Россия, Москва, пр. Вернадского, 86</p></bio><bio xml:lang="en"><p>docent, Ph.D. (Chemistry), Associate Professor of the Chair of Biotechnology and Industrial Pharmacy</p><p>86, Vernadskogo Pr., Moscow 119571, Russia</p></bio><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кириллова</surname><given-names>Ю. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Kirillova</surname><given-names>Yu. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат химических наук, доцент кафедры биотехнологии и промышленной фармации</p><p>119571, Россия, Москва, пр. Вернадского, 86</p><p>старший научный сотрудник отдела биофизики</p><p>119435, Россия, Москва, М. Пироговская ул., 1A</p></bio><bio xml:lang="en"><p>Ph.D. (Chemistry), Associate Professor of the Chair of Biotechnology and Industrial Pharmacy</p><p>86, Vernadskogo Pr., Moscow, 119571 Russia</p><p>Senior Researcher, Department of Biophysics</p><p>1A, Malaya Pirogovskaya St., Moscow 119435, Russia</p></bio><email xlink:type="simple">pna-mitht@yandex.ru</email><xref ref-type="aff" rid="aff-3"/></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><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>МИРЭА - Российский технологический университет (Институт тонких химических технологий имени М.В. Ломоносова); Университет Эль-Файюм</institution><country>Россия</country></aff><aff xml:lang="en"><institution>MIREA - Russian Technological University (M.V. Lomonosov Institute of Fine Chemical Technologies); Fayoum University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>МИРЭА - Российский технологический университет (Институт тонких химических технологий имени М.В. Ломоносова); Федеральный научно-клинический центр физико-химической медицины ФМБА России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>MIREA - Russian Technological University (M.V. Lomonosov Institute of Fine Chemical Technologies); Federal Research and Clinical Center of Physical-Chemical Medicine, FMBA of Russia</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2018</year></pub-date><pub-date pub-type="epub"><day>28</day><month>10</month><year>2018</year></pub-date><volume>13</volume><issue>5</issue><fpage>14</fpage><lpage>22</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Prokhorov I.A., Melkumova A.A., Abdelbaky A.S., Esipova O.V., Kirillova Y.G., 2018</copyright-statement><copyright-year>2018</copyright-year><copyright-holder xml:lang="ru">Прохоров И.А., Мелкумова А.А., Абдельбаки А.С., Есипова О.В., Кириллова Ю.Г.</copyright-holder><copyright-holder xml:lang="en">Prokhorov I.A., Melkumova A.A., Abdelbaky A.S., Esipova O.V., Kirillova Y.G.</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/165">https://www.finechem-mirea.ru/jour/article/view/165</self-uri><abstract><p>This work is devoted to optimization of the synthesis of γ-S-carboxyethyl monomers of PNA based on L-Glu. PNA are promising compounds that hybridize with DNA or RNA, and due to their properties they are used in molecular biology, personalized medicine, and can also be used to create nanomaterials. To increase the yield of the desired monomers, it has been proposed to replace the benzyl protecting group with the carboxy function of the side radical by cyclohexyl one. Two synthetic schemes were proposed. In the first of them, γ-benzyl-N-Boc-glutamic acid, which was reduced to β-amino alcohol, was the starting compound. The hydroxyl group was protected by a dimethyl-tert-butylsilyl group. The benzyl ester in the side radical was cleaved by reduction on a palladium catalyst using ammonium formate. However, the subsequent acylation of cyclohexyl alcohol failed. In the second of the proposed schemes, a known sequence of reactions was used, which led to the formation of a cyclic derivative of Cbz-protected glutamic acid. Then, the resulting compound was acylated with cyclohexyl alcohol to give the desired ester. The subsequent transformation of the protective groups of the ester resulted in the diprotected L-glutamic acid in three stages. Subsequent reduction gave the desired protected β-amino alcohol containing a cyclohexyl protecting group in the side radical. This compound was further used in the Mitsunobu reaction to obtain a completely protected core of the PNA monomer. Subsequent thiolysis reaction resulted in the formation of the target secondary amine, the stability of which substantially exceeded the stability of its analog with benzyl protection, obtained and investigated before. The structure of the new compounds obtained is confirmed by 1H-NMR spectroscopy.</p></abstract><trans-abstract xml:lang="ru"><p>Работа посвящена оптимизации синтеза γ-(S)-карбоксиэтильных мономеров ПНК на основе L-Glu. ПНК - перспективные соединения, которые гибридизуются с ДНК или РНК, а благодаря своим свойствам находят применение в молекулярной биологии, персонализированной медицине, а также могут использоваться для создания наноматериалов. Для увеличения выхода целевых мономеров было предложено заменить бензильную защитную группу на карбокси-функции бокового радикала на циклогексильную. Были предложены две синтетические схемы. В первой из них исходным соединением выступала γ-бензил-N-Boc-глутаминовая кислота, которую восстанавливали до β-аминоспирта; гидроксильную функцию защищали диметил-трет-бутилсилильной группой; бензиловый эфир в боковом радикале расщепляли восстановлением на палладиевом катализаторе, используя формиат аммония. Однако осуществить последующее ацилирование циклогексилового спирта не удалось. Во второй из предложенных схем была использована известная последовательность реакций, которая привела к образованию циклического производного Cbz-защищенной глутаминовой кислоты. Затем данным соединением ацилировали циклогексиловый спирт с получением целевого сложного эфира. Последующая трансформация защитных групп эфира приводила в три стадии к дизащищенной L-глутаминовой кислоте. Затем реакцией восстановления был получен желаемый защищенный β-аминоспирт, содержащий циклогексильную защитную группу в боковом радикале. Далее это соединение использовали в реакции Мицунобу с получением полностью защищенного остова мономера ПНК. Последовательно проведенная реакция тиолиза Ns-защитной группы привела к образованию целевого вторичного амина, стабильность которого существенно превзошла стабильность его аналога с бензильной защитой, полученного и исследованного ранее. При этом выход реакции тиолиза повысился в 2 раза. Структура новых соединений подтверждена данными 1Н-ЯМР-спектроскопии.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>циклогексильная защитная группа</kwd><kwd>конденсация по Мицунобу</kwd><kwd>удаление орто-нитробензолсульфогруппы тиолизом</kwd></kwd-group><kwd-group xml:lang="en"><kwd>γ-ПНК</kwd><kwd>Boc-протокол</kwd><kwd>γ-PNA</kwd><kwd>Boc protocol</kwd><kwd>cyclohexyl protecting group</kwd><kwd>Mitsunobu condensation</kwd><kwd>removal of ortho-nitrobenzenesulfonic group by thiolysis</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">Nielsen P.E., Egholm M., Berg R.H., Buchardt O. Sequence-selective recognition of DNA by strand displacement with a thymine-substituted polyamide // Science. 1991. № 254 (5037). P. 1497-1500.</mixed-citation><mixed-citation xml:lang="en">Nielsen P.E., Egholm M., Berg R.H., Buchardt O. 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