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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">dan</journal-id><journal-title-group><journal-title xml:lang="ru">Доклады Национальной академии наук Беларуси</journal-title><trans-title-group xml:lang="en"><trans-title>Doklady of the National Academy of Sciences of Belarus</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1561-8323</issn><issn pub-type="epub">2524-2431</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">dan-209</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>ХИМИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>CHEMISTRY</subject></subj-group></article-categories><title-group><article-title>СИНТЕЗ МОДИФИЦИРОВАННЫХ ПУРИНОВЫХ 2′,3′-ДИДЕЗОКСИ-2′,3′-ДИФТОР-D-АРАБИНОФУРАНОЗИЛ НУКЛЕОЗИДОВ ИЗ УНИВЕРСАЛЬНОГО УГЛЕВОДНОГО ПРЕДШЕСТВЕННИКА</article-title><trans-title-group xml:lang="en"><trans-title>SYNTHESIS OF PURINE MODIFIED 2′,3′-DIDEOXY-2′,3′-DIFLUORO-D-ARABINOFURANOSYL NUCLEOSIDES FROM THE UNIVERSAL CARBOHYDRATE PRECURSOR</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>СИВЕЦ</surname><given-names>Г. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>SIVETS</surname><given-names>G. G.</given-names></name></name-alternatives><email xlink:type="simple">gsivets@yahoo.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Института биоорганической химии НАН Беларуси, Минск</institution></aff><aff xml:lang="en"><institution>Institute of Bioorganic Chemistry, National Academy of Sciences, Minsk</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2014</year></pub-date><pub-date pub-type="epub"><day>09</day><month>06</month><year>2016</year></pub-date><volume>58</volume><issue>2</issue><fpage>86</fpage><lpage>92</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; СИВЕЦ Г.Г., 2016</copyright-statement><copyright-year>2016</copyright-year><copyright-holder xml:lang="ru">СИВЕЦ Г.Г.</copyright-holder><copyright-holder xml:lang="en">SIVETS G.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://doklady.belnauka.by/jour/article/view/209">https://doklady.belnauka.by/jour/article/view/209</self-uri><abstract><p>Cинтез пуриновых 2′,3′-дидезокси-2′,3′-дифтор- D-арабинофуранозил нуклеозидов, модифицированных в гетероциклическом основании, осуществлен из производного 2,3-дидезокси-2,3-дифтор-α-D-арабинофуранозы на основе реакции анионного гликозилирования солей пуриновых гетероциклических оснований 1-α-бромпроизводным 5-O-бензоил-2,3-дидезокси-2,3-дифтор-D-арабинофуранозы в качестве универсального углеводного предшественника. 2,6-Дизамещенные в гетероциклическом основании производные пуриновых  2′, 3′ - дифтор -D- арабинонуклеозидов и гуаниновый нуклеозидный аналог получены химическими трансформациями блокированных арабинозидов 2,6-дихлопурина или 2-амино-6-дихлопурина, которые являются ключевыми промежуточными соединениями в синтезе различных нуклеозидов этого класса.</p></abstract><trans-abstract xml:lang="en"><p>Aseries of purine modified nucleosides with 2′,3′-difluoro-β-D-arabinofuranosyl moiety have been synthesized starting from derivative of 2′,3′-dideoxy-2′,3′-difluoro-D-arabinofuranose via anionic glycosylation reaction of salts of purine hetero­cyclic bases by α-bromide as the universal sugar precursor.2,6-Disubstituted purine 2′,3′-difluoro-D-arabinofuranosyl nucle­osides and guanine nucleoside analogue were prepared by chemical transformations of protected arabinosides of 2,6-dichloro­purine or 2-amino-6-chloropurine as key intermediates for constructing diverse nucleoside analogues of this class.</p></trans-abstract></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Meng W. 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