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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">pharmjournal</journal-id><journal-title-group><journal-title xml:lang="ru">Разработка и регистрация лекарственных средств</journal-title><trans-title-group xml:lang="en"><trans-title>Drug development &amp; registration</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2305-2066</issn><issn pub-type="epub">2658-5049</issn><publisher><publisher-name>LLC «CPHA»</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.33380/2305-2066-2021-10-2-80-86</article-id><article-id custom-type="elpub" pub-id-type="custom">pharmjournal-918</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>МЕТОДЫ АНАЛИЗА ЛЕКАРСТВЕННЫХ СРЕДСТВ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ANALYTICAL METHODS</subject></subj-group></article-categories><title-group><article-title>Выделение и установление структуры трех димерных проантоцианидинов типа А из надземной части Empetrum nigrum L.</article-title><trans-title-group xml:lang="en"><trans-title>Isolation and Structure Elucidation of Three Dimeric A-type Proanthocyanidins from Empetrum Nigrum L.</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4879-9336</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Понкратова</surname><given-names>А. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Ponkratova</surname><given-names>A. O.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Понкратова Анастасия Олеговна</p><p>197376, г. Санкт-Петербург, ул. Проф. Попова, д. 14, лит. А</p></bio><bio xml:lang="en"><p>Anastasiia O. Ponkratova</p><p>14A, Prof. Popov str., Saint-Petersburg, 197376</p></bio><email xlink:type="simple">anastasiya.ponkratova@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4847-5924</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Уэйли</surname><given-names>А. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Whaley</surname><given-names>A. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>197376, г. Санкт-Петербург, ул. Проф. Попова, д. 14, лит. А</p></bio><bio xml:lang="en"><p>Andrei K. Whaley</p><p>14A, Prof. Popov str., Saint-Petersburg, 197376</p></bio><email xlink:type="simple">9968639@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7836-5785</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Орлова</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Orlova</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>197376, г. Санкт-Петербург, ул. Проф. Попова, д. 14, лит. А</p></bio><bio xml:lang="en"><p>Anastasia A. Orlova</p><p>14A, Prof. Popov str., Saint-Petersburg, 197376</p></bio><email xlink:type="simple">anastasiya.lebedkova@spcpu.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2042-337X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Смирнов</surname><given-names>С. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Smirnov</surname><given-names>S. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>199034, г. Санкт-Петербург, Университетская наб., д. 7–9</p></bio><bio xml:lang="en"><p>Sergey N. Smirnov</p><p>7–9, Universitetskaya emb., Saint-Petersburg, 199034</p></bio><email xlink:type="simple">sergey.smirnov@spbu.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1021-6871</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Серебряков</surname><given-names>Е. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Serebryakov</surname><given-names>E. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>199034, г. Санкт-Петербург, Университетская наб., д. 7–9</p></bio><bio xml:lang="en"><p>Evgeny B. Serebryakov</p><p>7–9, Universitetskaya emb., Saint-Petersburg, 199034</p></bio><email xlink:type="simple">evgeny030403@yandex.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6312-2027</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лужанин</surname><given-names>В. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Luzhanin</surname><given-names>V. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>197376, г. Санкт-Петербург, ул. Проф. Попова, д. 14, лит. А</p></bio><bio xml:lang="en"><p>Vladimir G. Luzhanin</p><p>14A, Prof. Popov str., Saint-Petersburg, 197376</p></bio><email xlink:type="simple">vladimir.luzhanin@pharminnotech.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">ФГБОУ ВО «Санкт-Петербургский государственный химико-фармацевтический университет» Министерства здравоохранения Российской Федерации (ФГБОУ ВО СПХФУ Минздрава России)<country>Россия</country></aff><aff xml:lang="en">Saint Petersburg State Chemical-Pharmaceutical University<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">ФГБОУ ВО «Санкт-Петербургский государственный университет» (СПбГУ)<country>Россия</country></aff><aff xml:lang="en">Saint Petersburg State University<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>31</day><month>05</month><year>2021</year></pub-date><volume>10</volume><issue>2</issue><fpage>80</fpage><lpage>86</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Понкратова А.О., Уэйли А.К., Орлова А.А., Смирнов С.Н., Серебряков Е.Б., Лужанин В.Г., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Понкратова А.О., Уэйли А.К., Орлова А.А., Смирнов С.Н., Серебряков Е.Б., Лужанин В.Г.</copyright-holder><copyright-holder xml:lang="en">Ponkratova A.O., Whaley A.K., Orlova A.A., Smirnov S.N., Serebryakov E.B., Luzhanin V.G.</copyright-holder><license 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.pharmjournal.ru/jour/article/view/918">https://www.pharmjournal.ru/jour/article/view/918</self-uri><abstract><p>Введение. Инфекции мочевыводящих путей (ИМП) являются широко распространенной группой заболеваний по всему миру, ежегодно поражающей более 150 миллионов человек. У порядка 30 % пациентов, перенесших первичную инфекцию, ИМП переходит в хроническую форму. Лекарственные препараты растительного происхождения наряду с синтетическими диуретиками и антибиотиками широко применяются для профилактики и лечения ИМП, а поиск и выделение индивидуальных веществ из растительного сырья, обладающих фармакологическим потенциалом, является актуальным. Настоящее исследование посвящено выделению индивидуальных соединений, относящихся к классу проантоцианидинов, из надземной части водяники черной (Empetrum nigrum L.).Цель. Разработать методики выделения индивидуальных проантоцианидинов из надземной части Empetrum nigrum и установить химическую структуру выделенных соединений с использованием современных физико-химических методов анализа.Материалы и методы. Побеги Empetrum nigrum были собраны в районе питомника лекарственных растений Санкт-Петербургского химикофармацевтического университета (далее – СПХФУ) (Ленинградская область, Всеволожский район, Приозерское шоссе, 38 км) в августе 2019 года. Анализ фракций проводили методом аналитической высокоэффективной жидкостной хроматографии (ВЭЖХ) на приборе Prominence LC-20 (Shimadzu, Япония), оснащенном диодно-матричным детектором, а также методом высокоэффективной тонкослойной хроматографии (ВЭТСХ) на приборе CAMAG (Швейцария). Выделение индивидуальных соединений осуществлялось методом колоночной хроматографии на открытых стеклянных колонках с сорбентами различной селективностью, а также методом препаративной ВЭЖХ на приборе Smartlina (Knauer, Германия), оснащенном спектрофотометрическим детектором. Структура выделенных индивидуальных соединений устанавливалась методами 1D и 2D ЯМР-спектроскопии (Bruker Avance III 400 MHz, Германия), а также масс-спектрометрией высокого разрешения (HR-ESI-MS) (Bruker Micromass Q-TOF, Германия).Результаты и обсуждение. С помощью разработанных методик из побегов Empetrum nigrum выделено три индивидуальных соединения, относящихся к классу проантоцианидинов типа А. Согласно данным ЯМР-спектроскопии и масс-спектрометрии, соединение 1 представляет собой эпикатехин-(2β → O → 5, 4β → 6)-эпикатехин с крайне редким типом межмономерной связи (2β → O → 5, 4β → 6). Соединения 2 и 3 представляют собой эпикатехин-(2β → O → 7, 4β → 8)-эпикатехин (процианидин А2) и эпикатехин-(2β → O → 7, 4β → 8)-катехин (процианидин А1) соответственно. Все индивидуальные соединения (1-3) обнаружены и выделены из Empetrum nigrum впервые.Заключение. В результате исследования из надземной части Empetrum nigrum были выделены три индивидуальных соединения (проантоцианидины типа А), которые ранее в Empetrum nigrum не были обнаружены. Предполагается последующее исследование биологической активности выделенных соединений.</p></abstract><trans-abstract xml:lang="en"><p>Introduction. Urinary tract infections are a common group of diseases worldwide, affecting more than 150 million people every year. In about 30 % of patients with initial infection, UTI becomes chronic. Herbal medicines, along with synthetic diuretics and antibiotics, are widely used for the prevention and treatment of UTIs, which makes the search and isolation of various substances from plant materials an important task. The present study is devoted to the isolation of compounds belonging to the class of proanthocyanidins from the aerial part of the black crowberry (Empetrum nigrum L.).Aim. Method development for the isolation of individual dimeric type A proanthocyanidins from the aerial part of Empetrum nigrum and the elucidation of their chemical structure using modern physicochemical methods of analysis.Materials and methods. Shoots of Empetrum nigrum were collected next to the Saint Petersburg State Chemical-Pharmaceutical University Nursery Garden of Medicinal Plants (Leningrad region, Vsevolozhsky district, Priozerskoe highway, 38 km) in August 2019. Fraction analysis was performed through analytical high-performance liquid chromatography (HPLC) using a Prominence LC-20 (Shimadzu corp., Japan) equipped with a SPD-M20A diode-array detector, as well as by high performance thin layer chromatography (HPTLC) using a CAMAG HPTLC system (Switzerland). The isolation of compounds was carried out by open column chromatography using sorbents with different selectivity, as well as by preparative HPLC using a Smartline system (Knauer, Germany) equipped with a spectrophotometric detector. The structures of the isolated compounds were established by 1D and 2D NMR experiments (Bruker Avance III 400 MHz, Germany), as well as high-resolution mass spectrometry (HR-ESI-MS) (Bruker Micromass Q-TOF, Germany).Results and discussion. Using the developed methods, from the Empetrum nigrum shoots we managed to isolate and characterised three individual compounds belonging to the class of A-type proanthocyanidins. According to NMR and mass spectrometry data, compound 1 is epicatechin-(2β → O → 5, 4β → 6)-epicatechin, with an extremely rare type of intermonomer bond (2β → O → 5, 4β → 6). Compounds 2 and 3 are epicatechin-(2β → O → 7, 4β → 8)-epicatechin (procyanidin A2) and epicatechin-(2β → O → 7, 4β → 8)-catechin (procyanidin A1), respectively. All individual compounds (1-3) were found and isolated from Empetrum nigrum for the first time.Conclusion. As a result of the research, three individual compounds (A-type proanthocyanidins) were isolated from the aerial part of Empetrum nigrum. All individual compounds (1-3) were found and isolated from Empetrum nigrum for the first time. Future assessment of the isolated compounds biological activity is presumed.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>водяника черная</kwd><kwd>Empetrum nigrum</kwd><kwd>конденсированные танины</kwd><kwd>проантоцианидины типа А</kwd><kwd>вторичные метаболиты</kwd></kwd-group><kwd-group xml:lang="en"><kwd>black crowberry</kwd><kwd>Empetrum nigrum</kwd><kwd>condensed tannins</kwd><kwd>A-type proanthocyanidins</kwd><kwd>secondary metabolites</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">Kubitzki K., ed. Flowering Plants. 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