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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="other" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Russian Journal of Bioorganic Chemistry</journal-id><journal-title-group><journal-title xml:lang="en">Russian Journal of Bioorganic Chemistry</journal-title><trans-title-group xml:lang="ru"><trans-title>Биоорганическая химия</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0132-3423</issn><issn publication-format="electronic">1998-2860</issn><publisher><publisher-name xml:lang="en">The Russian Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">670616</article-id><article-id pub-id-type="doi">10.31857/S0132342323030053</article-id><article-id pub-id-type="edn">PDKPOP</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Статьи</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">Convenient Preparation of <italic>tert</italic>-Butyl Amino Acid Esters from <italic>tert</italic>-Butanol</article-title><trans-title-group xml:lang="ru"><trans-title>Удобный метод получения <italic>трет</italic>-бутиловых эфиров <italic>N</italic><sub>α</sub>-защищенных аминокислот из <italic>трет</italic>-бутанола</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Azev</surname><given-names>V. N.</given-names></name><name xml:lang="ru"><surname>Азев</surname><given-names>В. Н.</given-names></name></name-alternatives><email>viatcheslav.azev@bibch.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Chulin</surname><given-names>A. N.</given-names></name><name xml:lang="ru"><surname>Чулин</surname><given-names>А. Н.</given-names></name></name-alternatives><email>viatcheslav.azev@bibch.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Molchanov</surname><given-names>M. V.</given-names></name><name xml:lang="ru"><surname>Молчанов</surname><given-names>М. В.</given-names></name></name-alternatives><email>viatcheslav.azev@bibch.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Miroshnikov</surname><given-names>A. I.</given-names></name><name xml:lang="ru"><surname>Мирошников</surname><given-names>А. И.</given-names></name></name-alternatives><email>viatcheslav.azev@bibch.ru</email><xref ref-type="aff" rid="aff3"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Branch of Shemyakin and Ovchinnikov Bioorganic Chemistry Institute RAS,</institution></aff><aff><institution xml:lang="ru">Филиал Института биоорганической химии им. академиков М.М. Шемякина и Ю.А. Овчинникова РАН</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Istitute for Theoretical and Experimental Biophysics RAS</institution></aff><aff><institution xml:lang="ru">ФГБУН “Институт теоретической и экспериментальной биофизики” РАН</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Shemyakin–Ovchinnikov Institute of Bioorganic Chemistry RAS</institution></aff><aff><institution xml:lang="ru">ФГБУН “Институт биоорганической химии им. академиков М.М. Шемякина и Ю.А. Овчинникова” РАН</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2023-05-01" publication-format="electronic"><day>01</day><month>05</month><year>2023</year></pub-date><volume>49</volume><issue>3</issue><fpage>291</fpage><lpage>295</lpage><history><date date-type="received" iso-8601-date="2025-02-27"><day>27</day><month>02</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2023, В.Н. Азев, А.Н. Чулин, М.В. Молчанов, А.И. Мирошников</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2023, В.Н. Азев, А.Н. Чулин, М.В. Молчанов, А.И. Мирошников</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="en">В.Н. Азев, А.Н. Чулин, М.В. Молчанов, А.И. Мирошников</copyright-holder><copyright-holder xml:lang="ru">В.Н. Азев, А.Н. Чулин, М.В. Молчанов, А.И. Мирошников</copyright-holder></permissions><self-uri xlink:href="https://journals.eco-vector.com/0132-3423/article/view/670616">https://journals.eco-vector.com/0132-3423/article/view/670616</self-uri><abstract xml:lang="en"><p id="idm45181324832976">A preparation of <italic>tert</italic>-butyl esters of amino acid is described that proceeds from protected amino acids and <italic>tert</italic>-butanol using anhydrous magnesium sulfate and an excess of boron trifluoride diethyl etherate as additional reagents. The method affords <italic>tert</italic>-butyl esters in good yields and a variety of amino acid side chains and substituents tolerate the reaction conditions.</p></abstract><trans-abstract xml:lang="ru"><p id="idm45181324832848">Разработан новый метод получения третичных бутиловых эфиров <italic>N</italic><sub>α</sub>-защищенных аминокислот из <italic>трет</italic>-бутанола с использованием безводного сульфата магния и избытка эфирата трехфтористого бора в качестве конденсирующего агента. Метод позволяет получать третичные бутиловые эфиры с высоким выходом. Изучена устойчивость различных функциональных групп боковых цепей аминокислот к условиям реакции.</p></trans-abstract><kwd-group xml:lang="en"><kwd><italic>boron trifluoride diethyl etherate</italic></kwd><kwd><italic>tert-butyl esters of amino acids</italic></kwd><kwd><italic>protecting group</italic></kwd><kwd><italic>Lewis acid</italic></kwd></kwd-group><kwd-group xml:lang="ru"><kwd>эфират трехфтористого бора</kwd><kwd>трет-бутиловые эфиры аминокислот</kwd><kwd>защитная группа</kwd><kwd>кислота Льюиса</kwd></kwd-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Isidro-Llobet A., Álvarez M., Albericio F. // Chem. Rev. 2009. V. 109. P. 2455–2504. https://doi.org/10.1021/cr800323s</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Kohlbau H.-J., Thürmer R., Voelter W. // Synthesis of Peptides and Peptidomimetics (Houben-Weyl E22a: Methods of Organic Chemistry) / Eds. Goodman M., Felix A.M., Moroder L., Toniolo C. 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