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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 custom-type="elpub" pub-id-type="custom">vestich-192</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 L-ПРОЛИЛ-L-ЛЕЙЦИЛГЛИЦИНА</article-title><trans-title-group xml:lang="en"><trans-title>PREPARATIVE SYNTHESIS OF PROLYLLEUCYLGLYCINE</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>Гордашникова</surname><given-names>Е. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Gordashnikova</surname><given-names>H. I.</given-names></name></name-alternatives><email xlink:type="simple">knizh@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>Гайдукевич</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Gaidukevich</surname><given-names>V. A.</given-names></name></name-alternatives><email xlink:type="simple">knizh@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>Попова</surname><given-names>Л. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Popova</surname><given-names>L. A.</given-names></name></name-alternatives><email xlink:type="simple">knizh@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>Книжников</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Knizhnikov</surname><given-names>V. A.</given-names></name></name-alternatives><email xlink:type="simple">knizh@ifoch.bas-net.by</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт физико-органической химии НАН 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>2016</year></pub-date><pub-date pub-type="epub"><day>06</day><month>08</month><year>2016</year></pub-date><volume>0</volume><issue>2</issue><fpage>50</fpage><lpage>54</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Гордашникова Е.И., Гайдукевич В.А., Попова Л.А., Книжников В.А., 2016</copyright-statement><copyright-year>2016</copyright-year><copyright-holder xml:lang="ru">Гордашникова Е.И., Гайдукевич В.А., Попова Л.А., Книжников В.А.</copyright-holder><copyright-holder xml:lang="en">Gordashnikova H.I., Gaidukevich V.A., Popova L.A., Knizhnikov V.A.</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/192">https://vestichem.belnauka.by/jour/article/view/192</self-uri><abstract><p>L-пролил-L-лейцилглицин пролучен из L-пролил-L-лейцина с использованием для наращивания пептидной цепи методов активированных эфиров или смешанных ангидридов. </p></abstract><trans-abstract xml:lang="en"><p>Using methods of activated esters or mixed anhydrides to increase peptide chain, L-prolyl-L-leucylglycine has been prepared from L-prolyl-L-leucine.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>L-пролил-L-лейцилглицин</kwd><kwd>активированный эфир</kwd><kwd>смешанный ангидрид</kwd></kwd-group><kwd-group xml:lang="en"><kwd>L-prolyl-L-leucylglycine</kwd><kwd>activated ester</kwd><kwd>mixed anhydride</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">Pan, W. 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