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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">vestich</journal-id><journal-title-group><journal-title xml:lang="ru">Известия Национальной академии наук Беларуси. Серия химических наук</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of the National Academy of Sciences of Belarus, Chemical Series</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1561-8331</issn><issn pub-type="epub">2524-2342</issn><publisher><publisher-name>The Republican Unitary Enterprise Publishing House "Belaruskaya Navuka"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.29235/1561-8331-2019-55-1-58-63</article-id><article-id custom-type="elpub" pub-id-type="custom">vestich-378</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>ОРГАНИЧЕСКАЯ ХИМИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORGANIC CHEMISTRY</subject></subj-group></article-categories><title-group><article-title>Препаративный синтез N-ацетил-3-индолинонов</article-title><trans-title-group xml:lang="en"><trans-title>Preparative synthesis of N-acetyl-3-indolinones</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>Найдёнов</surname><given-names>В. Э.</given-names></name><name name-style="western" xml:lang="en"><surname>Naidenov</surname><given-names>V. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Найдёнов Владимир Эдгарович – научный сотрудник.</p><p>ул. Сурганова, 13, 220072, Минск.</p></bio><bio xml:lang="en"><p>Vladimir E. Naidenov – Researcher.</p><p>13, Surganov Str., 220072, Minsk.</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Куваева</surname><given-names>З. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Kuvaeva</surname><given-names>Z. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Куваева Зоя Ивановна – доктор химических наук, профессор, заведующий отделом.</p><p>ул. Сурганова, 13, 220072, Минск.</p></bio><bio xml:lang="en"><p>Zoya I. Kuvaeva – D. Sc. (Chemistry), Professor, Head of the Department.</p><p>13, Surganov Str., 220072,  Minsk.</p></bio><email xlink:type="simple">extract@ifoch.bas-net.by</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>Лопатик</surname><given-names>Д. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Lopatik</surname><given-names>D. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Лопатик Дина Владимировна – кандидат химических наук, старший научный сотрудник.</p><p>ул. Сурганова, 13, 220072, Минск.</p></bio><bio xml:lang="en"><p>Dina V. Lopatik – Ph. D. (Chemistry), Senior Researcher.</p><p>13, Surganov Str., 220072, Minsk.</p></bio><email xlink:type="simple">aminoacid@ifoch.bas-net.by</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>Маркович</surname><given-names>М. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Markovich</surname><given-names>M. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Маркович Марина Михайловна – научный сотрудник.</p><p>ул. Сурганова, 13, 220072, Минск.</p></bio><bio xml:lang="en"><p>Marina M. Markovich – Researcher.</p><p>13,  Surganov  Str.,  220072,  Minsk.</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Микулич</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Mikulich</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Микулич Авенирий Васильевич – кандидат химических наук, старший научный сотрудник.</p><p>ул. Сурганова, 13, 220072, Минск.</p></bio><bio xml:lang="en"><p>Aveniri V. Mikulich – Ph. D. (Chemistry), Senior Researcher.</p><p>13, Surganov Str., 220072, Minsk.</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт физико-органической химии Национальной академии наук Беларуси</institution></aff><aff xml:lang="en"><institution>Institute of Physical Organic Chemistry of the National Academy of Sciences of Belarus</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2019</year></pub-date><pub-date pub-type="epub"><day>13</day><month>03</month><year>2019</year></pub-date><volume>55</volume><issue>1</issue><fpage>58</fpage><lpage>63</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Найдёнов В.Э., Куваева З.И., Лопатик Д.В., Маркович М.М., Микулич А.В., 2019</copyright-statement><copyright-year>2019</copyright-year><copyright-holder xml:lang="ru">Найдёнов В.Э., Куваева З.И., Лопатик Д.В., Маркович М.М., Микулич А.В.</copyright-holder><copyright-holder xml:lang="en">Naidenov V.E., Kuvaeva Z.I., Lopatik D.V., Markovich M.M., Mikulich A.V.</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://vestichem.belnauka.by/jour/article/view/378">https://vestichem.belnauka.by/jour/article/view/378</self-uri><abstract><p>Соединения, содержащие в своей структуре индольный цикл, обладают биологической активностью и являются источником для разработки новых лекарственных средств. Для их органического синтеза активно используются в качестве исходных веществ N-ацетил-3-индолиноны. Разработаны препаративные методики получения N-ацетил-3-индолинонов, применяемых в качестве исходных соединений для синтеза конденсированных производных индола, обладающих высокой терапевтической активностью. Синтез N-ацетил-3-индолинонов осуществляли путем диацетилирования и циклизации N-(2-карбоксифенил)глицина и его 4-бромпроизводного с образованием N,O-диацетилиндоксилов с последующим гидролизом полученных соединений до целевых индолинонов. Установлено, что бромзамещенные производные обладают повышенной стабильностью по сравнению с аналогами, не содержащими брома в бензольном кольце индольного ядра, в результате чего при их использовании в реакции повышается выход целевых продуктов.</p></abstract><trans-abstract xml:lang="en"><p>Compounds that contain an indole cycle in their structure have biological activity and are a source for the development of new medicinal products. N-acetyl-3-indolinones are actively used as incoming substance for their organic synthesis. Preparative methods for the obtaining of N-acetyl-3-indolinones, used as incoming substances for the synthesis of condensed indole derivatives with high therapeutic activity, have been developed. Synthesis of N-acetyl-3-indolinone was performed by deacetylation and cyclization of N-(2-carboxyphenyl) glycine and its 4-bromo-derivative to form N,O-diacetylindoxyls followed by hydrolysis of the obtained compounds to target indolinones. It was established that brominated derivatives have increased stability as compared with the analogues which do not contain bromine on the benzene ring of the indole nucleus, resulting in the increase in the yield of desired products in the reaction.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>N-(2-карбоксифенил)глицин</kwd><kwd>N</kwd><kwd>O-диацетилиндоксил</kwd><kwd>5-бром-N</kwd><kwd>O-диацетилиндоксил</kwd><kwd>уксусный ангидрид</kwd><kwd>натрия сульфит</kwd><kwd>N-ацетил-3-индолинон</kwd><kwd>N-ацетил-5-бром-3-индолинон</kwd></kwd-group><kwd-group xml:lang="en"><kwd>N-(2-carboxyphenyl) glycine</kwd><kwd>N</kwd><kwd>O-diacetylindoxyl</kwd><kwd>5-bromo-N</kwd><kwd>O-diacetylindoxyl</kwd><kwd>acetic anhydride</kwd><kwd>sodium sulfite</kwd><kwd>N-acetyl-3-indolinone</kwd><kwd>N-acetyl-5-bromo-3-indolinone</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">Граник, В. 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