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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">vedomostiregmed</journal-id><journal-title-group><journal-title xml:lang="ru">Регуляторные исследования и экспертиза лекарственных средств</journal-title><trans-title-group xml:lang="en"><trans-title>Regulatory Research and Medicine Evaluation</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">3034-3062</issn><issn pub-type="epub">3034-3453</issn><publisher><publisher-name>Federal State Budgetary Institution ‘Scientific Centre for Expert Evaluation of Medicinal Products’ of the Ministry of Health of the Russian Federation (FSBI ‘SCEEMP’)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.30895/1991-2919-2025-697</article-id><article-id custom-type="elpub" pub-id-type="custom">vedomostiregmed-697</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>ДОКЛИНИЧЕСКИЕ И КЛИНИЧЕСКИЕ ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>PRECLINICAL AND CLINICAL STUDIES</subject></subj-group></article-categories><title-group><article-title>Изучение экскреции 5-[5-(трифторметил)-1,2-оксазол-3-ил]-фуран-2-сульфонамида на крысах</article-title><trans-title-group xml:lang="en"><trans-title>Excretion Study of 5-[5-(Trifluoromethyl)-1,2-oxazole-3-yl]-furan-2-sulfonamide in Rats</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0066-7388</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Яичков</surname><given-names>И. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Yaichkov</surname><given-names>I. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Яичков Илья Игоревич, канд. фарм. наук</p><p>ул. Республиканская, д. 108/1, Ярославль, 150000; </p><p>ул. Революционная, д. 5, Ярославль, 150000</p></bio><bio xml:lang="en"><p>Ilya I. Yaichkov, Cand. Sci. (Pharm.)</p><p>108/1 Respublikanskaya St., Yaroslavl 150000; </p><p>5 Revolutsionnaya St., Yaroslavl 150000</p></bio><email xlink:type="simple">i.yaichkov@yspu.org</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0032-0341</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Хохлов</surname><given-names>А. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Khokhlov</surname><given-names>A. L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Хохлов Александр Леонидович, д-р мед. наук, профессор, академик РАН</p><p>ул. Революционная, д. 5, Ярославль, 150000</p></bio><bio xml:lang="en"><p>Alexander L. Khokhlov, Dr. Sci. (Med.), Professor, Academician of the Russian Academy of Sciences</p><p>5 Revolutsionnaya St., Yaroslavl 150000</p></bio><email xlink:type="simple">al460935@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/0000-0003-0913-2571</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Корсаков</surname><given-names>М. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Korsakov</surname><given-names>M. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Корсаков Михаил Константинович, д-р хим. наук, доцент</p><p>ул. Республиканская, д. 108/1, Ярославль, 150000</p></bio><bio xml:lang="en"><p>Mikhail K. Korsakov, Dr. Sci. (Chem.), Associate Professor</p><p>108/1 Respublikanskaya St., Yaroslavl 150000</p></bio><email xlink:type="simple">m.korsakov@yspu.org</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4275-9037</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Вольхин</surname><given-names>Н. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Volkhin</surname><given-names>N. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Вольхин Никита Николаевич</p><p>ул. Республиканская, д. 108/1, Ярославль, 150000; </p><p>ул. Революционная, д. 5, Ярославль, 150000</p></bio><bio xml:lang="en"><p>Nikita N. Volkhin</p><p>108/1 Respublikanskaya St., Yaroslavl 150000; 5 Revolutsionnaya St., Yaroslavl 150000</p></bio><email xlink:type="simple">nnvolkhin@ysmu.ru</email><xref ref-type="aff" rid="aff-4"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0007-8435-7689</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Петухов</surname><given-names>С. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Petukhov</surname><given-names>S. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Петухов Сергей Станиславович</p><p>ул. Республиканская, д. 108/1, Ярославль, 150000; </p><p>ул. Революционная, д. 5, Ярославль, 150000</p></bio><bio xml:lang="en"><p>Sergey S. Petukhov</p><p>108/1 Respublikanskaya St., Yaroslavl 150000; </p><p>5 Revolutsionnaya St., Yaroslavl 150000</p></bio><email xlink:type="simple">sspp465@mail.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/0009-0008-9431-1980</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Зайкова</surname><given-names>В. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Zaykova</surname><given-names>V. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Зайкова Валерия Евгеньевна</p><p>ул. Республиканская, д. 108/1, Ярославль, 150000; </p><p>ул. Революционная, д. 5, Ярославль, 150000</p></bio><bio xml:lang="en"><p>Valeria E. Zaykova</p><p>108/1 Respublikanskaya St., Yaroslavl 150000; </p><p>5 Revolutsionnaya St., Yaroslavl 150000</p></bio><email xlink:type="simple">valeria.zaykova@bk.ru</email><xref ref-type="aff" rid="aff-4"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0002-1249-3669</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лазарянц</surname><given-names>О. Э.</given-names></name><name name-style="western" xml:lang="en"><surname>Lazariants</surname><given-names>O. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Лазарянц Ольга Эммануиловна </p><p>ул. Республиканская, д. 108/1, Ярославль, 150000; </p><p>ул. Революционная, д. 5, Ярославль, 150000</p></bio><bio xml:lang="en"><p>Olga E. Lazariants</p><p>108/1 Respublikanskaya St., Yaroslavl 150000; </p><p>5 Revolutsionnaya St., Yaroslavl 150000</p></bio><email xlink:type="simple">lazaryants98@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Федеральное государственное бюджетное образовательное учреждение высшего образования «Ярославский государственный педагогический университет им. К.Д. Ушинского»; &#13;
Федеральное государственное бюджетное образовательное учреждение высшего образования «Ярославский государственный медицинский университет» Министерства здравоохранения Российской Федерации</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Yaroslavl State Pedagogical University named after K.D. Ushinsky; &#13;
Yaroslavl State Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Федеральное государственное бюджетное образовательное учреждение высшего образования «Ярославский государственный медицинский университет» Министерства здравоохранения Российской Федерации</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Yaroslavl State Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Федеральное государственное бюджетное образовательное учреждение высшего образования «Ярославский государственный педагогический университет им. К.Д. Ушинского»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Yaroslavl State Pedagogical University named after K.D. Ushinsky</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>Федеральное государственное бюджетное образовательное учреждение высшего образования «Ярославский государственный педагогический университет им. К.Д. Ушинского»; &#13;
Федеральное государственное бюджетное образовательное учреждение высшего образования «Ярославский государственный медицинский университет» Министерства здравоохранения Российской Федерации</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Yaroslavl State Pedagogical University named after K.D. Ushinsky; Yaroslavl State Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>06</day><month>11</month><year>2025</year></pub-date><volume>15</volume><issue>5</issue><fpage>508</fpage><lpage>520</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Яичков И.И., Хохлов А.Л., Корсаков М.К., Вольхин Н.Н., Петухов С.С., Зайкова В.Е., Лазарянц О.Э., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Яичков И.И., Хохлов А.Л., Корсаков М.К., Вольхин Н.Н., Петухов С.С., Зайкова В.Е., Лазарянц О.Э.</copyright-holder><copyright-holder xml:lang="en">Yaichkov I.I., Khokhlov A.L., Korsakov M.K., Volkhin N.N., Petukhov S.S., Zaykova V.E., Lazariants O.E.</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://www.vedomostincesmp.ru/jour/article/view/697">https://www.vedomostincesmp.ru/jour/article/view/697</self-uri><abstract><sec><title>ВВЕДЕНИЕ</title><p>ВВЕДЕНИЕ. Новый селективный ингибитор карбоангидразы II типа 5-[5-(трифторметил)-1,2-оксазол-3-ил]-фуран-2-сульфонамид (TFISA) способен снижать внутриглазное давление при инстилляции в глаза. Данное соединение находится на стадии доклинического исследования. Процесс экскреции TFISA и его метаболитов ранее не изучен.</p></sec><sec><title>ЦЕЛЬ</title><p>ЦЕЛЬ. Определение параметров экскреции 5-[5-(трифторметил)-1,2-оксазол-3-ил]-фуран-2-сульфонамида и его основных метаболитов у крыс.</p></sec><sec><title>МАТЕРИАЛЫ И МЕТОДЫ</title><p>МАТЕРИАЛЫ И МЕТОДЫ. Работа выполнена на 6 крысах линии Wistar (3 самца и 3 самки). Введение осуществляли путем инстилляции 1% глазной суспензии TFISA в каждый глаз из расчета 3,7 мг/кг. Пробы фекалий и мочи отбирали до введения препарата и многократно до 360 ч после введения. Отбор экскретов проводили с помощью метаболических клеток. Измерение концентрации TFISA, N-ацетил-5-[5-(трифторметил)-1,2-оксазол-3-ил]-фуран-2-сульфонамида  (М2), N-гидрокси-5-[5-(трифторметил)-1,2-оксазол-3-ил]-фуран-2-сульфонамида (M1) и продукта его деградации 5-[5-(трифторметил)-1,2-оксазол-3-ил]-фуран-2-сульфоновой кислоты (M3) в экскретах проводили методом высокоэффективной жидкостной хроматографии с тандемным масс-спектрометрическим детектированием.</p></sec><sec><title>РЕЗУЛЬТАТЫ</title><p>РЕЗУЛЬТАТЫ. Биоаналитические методики определения TFISA и его метаболитов в экскретах крыс прошли полную валидацию. Аналитический диапазон определения TFISA, М2 и М3 в моче составил 10–10000 нг/мл, M1 — 1–1000 нг/мл. Аналитический диапазон определения концентрации TFISA в фекалиях составил 10–4000 нг/г, М2 и М3 — 5–2000 нг/г, М1 — 1–1000 нг/г. Установлено, что с мочой выводится 45,7±2,0% TFISA в неизменном виде, 38,7±2,7% в виде М1 и продукта его разложения М3, и 4,0±0,6% в виде М2 от общего количества элиминированных соединений. С калом выводится 8,2±1,0% TFISA в неизменном виде, 3,3±0,2% в виде продукта разложения N-гидроксиметаболита М3. Спустя 336 ч после введения TFISA дальнейшей элиминации не наблюдали.</p></sec><sec><title>ВЫВОД</title><p>ВЫВОД. С помощью разработанных и валидированных биоаналитических методик изучена экскреция TFISA и его метаболитов после аппликации глазной суспензии крысам в одной дозе. TFISA выводится преимущественно ренальным путем в неизменном виде, а также в виде N-гидроксиметаболита, который в процессе отбора образцов практически полностью разлагается до производного сульфокислоты. N-ацетилметаболит является минорным и выводится только с мочой.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>INTRODUCTION</title><p>INTRODUCTION. The administration of 5-[5-(trifluoromethyl)-1,2-oxazole-3-yl]-furan-2-sulfonamide (TFISA) into the eyes can reduce intraocular pressure. Currently, this novel selective carbonic anhydrase II inhibitor is at the preclinical research stage. The excretion of TFISA and its metabolites has not been studied yet.</p></sec><sec><title>AIM</title><p>AIM. This study aimed to calculate the parameters of urinary and faecal excretion of TFISA and its major metabolites in rats.</p></sec><sec><title>MATERIALS AND METHODS</title><p>MATERIALS AND METHODS. The study was performed in 6 Wistar rats (3 males and 3 females). The rats received an instillation of 1% TFISA ophthalmic suspension in each eye at a dose of 3.7 mg/kg. Stool samples were taken prior to TFISA administration and at multiple intervals up to 360 h afterwards. Excreta were collected using metabolic cages. The study used high-performance liquid chromatography with tandem mass spectrometry (HPLC–MS/MS) to measure the concentrations of TFISA, N-acetyl-5-[5-(trifluoromethyl)-1,2-oxazole-3-yl]-furan-2-sulfonamide (M2), and N-hydroxy-5-[5-(trifluoromethyl)-1,2-oxazole-3-yl]-furan-2-sulfonamide (M1) with its degradation product 5-[5-(trifluoromethyl)-1,2-oxazole-3-yl]-furan-2-sulfonic acid (M3) in the excreta.</p></sec><sec><title>RESULTS</title><p>RESULTS. The study involved full validation of bioanalytical procedures for the determination of TFISA and its metabolites in rat excreta. The analytical ranges were 10–10,000 ng/mL for the urinary levels of TFISA, M2, and M3; 1–1,000 ng/mL for the urinary levels of M1; 10–4,000 ng/g for the faecal levels of TFISA; 5–2,000 ng/g for the faecal levels of M2 and M3; and 1–1000 ng/g for the faecal levels of M1. Out of the total amount eliminated, 45.7±2.0% of unchanged TFISA, 38.7±2.7% of TFISA in the form of M1 and its degradation product M3, and 4.0±0.6% of TFISA in the form of M2 were excreted in urine, while 8.2±1.0% of unchanged TFISA and 3.3±0.2% of the N-hydroxy metabolite M3 were excreted in faeces. TFISA elimination continued for up to 336 h after administration.</p></sec><sec><title>CONCLUSION</title><p>CONCLUSION. The developed and successfully validated bioanalytical procedures were used to study the excretion of TFISA and its metabolites in rats after single-dose administration of the ophthalmic TFISA suspension. According to the results, TFISA is predominantly excreted unchanged in urine. In addition, TFISA is eliminated as its N-hydroxy metabolite, which almost completely degrades to the sulfonic acid derivative during the sampling process. The N-acetyl metabolite of TFISA is minor and is exclusively excreted in urine.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>ВЭЖХ-МС/МС</kwd><kwd>моча</kwd><kwd>фекалии</kwd><kwd>валидация</kwd><kwd>крысы</kwd><kwd>глаукома</kwd><kwd>экскреция</kwd><kwd>фармакокинетика</kwd><kwd>ингибитор карбоангидразы II</kwd><kwd>N-гидроксисульфонамид</kwd><kwd>метаболит</kwd></kwd-group><kwd-group xml:lang="en"><kwd>HPLC–MS/MS</kwd><kwd>urine</kwd><kwd>faeces</kwd><kwd>validation</kwd><kwd>rats</kwd><kwd>glaucoma</kwd><kwd>excretion</kwd><kwd>pharmacokinetics</kwd><kwd>selective carbonic anhydrase II inhibitor</kwd><kwd>N-hydroxysulfonamide</kwd><kwd>metabolite</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Статья подготовлена в рамках Государственного задания Ярославского государственного педагогического университета им. К.Д. Ушинского на 2024 год от Минпросвещения РФ по теме «Разработка нового лекарственного средства для лечения нейродегенеративных заболеваний на основе ингибитора моноаминоксидазы» (номер реестровой записи 720000Ф.99.1.БН62АА12000)</funding-statement><funding-statement xml:lang="en">The article was prepared as part of the 2024 State Assignment ‘Development of a novel medicine for the treatment of neurodegenerative diseases on the basis of a monoamine oxidase inhibitor’ from the Ministry of Education of the Russian Federation to the Yaroslavl State Pedagogical University named after K.D. Ushinsky (R&amp;D Registry No. 720000Ф.99.1.БН62АА12000)</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Popovic MM, Schlenker MB, Thiruchelvam D, Redelmeier DA. Serious adverse events of oral and topical carbonic anhydrase inhibitors. JAMA Ophthalmol. 2022;140(3):235–42. https://doi.org/10.1001/jamaophthalmol.2021.5977</mixed-citation><mixed-citation xml:lang="en">Popovic MM, Schlenker MB, Thiruchelvam D, Redelmeier DA. Serious adverse events of oral and topical carbonic anhydrase inhibitors. JAMA Ophthalmol. 2022;140(3):235–42. https://doi.org/10.1001/jamaophthalmol.2021.5977</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Хохлов АЛ, Шетнев АА, Корсаков МК, Федоров ВН, Тюшина АН, Вольхин НН, Вдовиченко ВП. Фармакологические свойства производных сульфонамидов — новых ингибиторов карбоангидразы. Бюллетень экспериментальной биологии и медицины. 2023;175(2):166–70. https://doi.org/10.47056/0365-9615-2023-175-2-166-170</mixed-citation><mixed-citation xml:lang="en">Khokhlov AL, Shetnev AA, Korsakov MK, Fedorov VN, Tyushina AN, Volkhin NN, Vdovichenko VP. Pharmacological properties of sulfonamide derivatives — new inhibitors of carbonic anhydrase. Bulletin of Experimental Biology and Medicine. 2023;175(2):166–70 (In Russ.). https://doi.org/10.47056/0365-9615-2023-175-2-166-170</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Khokhlov AL, Yaichkov II, Korsakov MK, Shetnev AA, Volkhin NN, Petukhov SS. Development of quantification methods of a new selective carbonic anhydrase II inhibitor in plasma and blood and study of the pharmacokinetics of its ophthalmic suspension in rats. Res Results Pharmacol. 2023;9(4):53–64. https://doi.org/10.18413/rrpharmacology.9.10056</mixed-citation><mixed-citation xml:lang="en">Khokhlov AL, Yaichkov II, Korsakov MK, Shetnev AA, Volkhin NN, Petukhov SS. Development of quantification methods of a new selective carbonic anhydrase II inhibitor in plasma and blood and study of the pharmacokinetics of its ophthalmic suspension in rats. Res Results Pharmacol. 2023;9(4):53–64. https://doi.org/10.18413/rrpharmacology.9.10056</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Яичков ИИ, Хохлов АЛ, Корсаков МК, Шетнев АА, Вольхин НН, Петухов СС. Изучение фармакокинетики нового производного изоксазола на крысах с применением ВЭЖХ-МС/МС для анализа проб крови. Регуляторные исследования и экспертиза лекарственных средств. 2024;14(3):304–16. https://doi.org/10.30895/1991-2919-2024-14-3-304-316</mixed-citation><mixed-citation xml:lang="en">Yaichkov II, Khokhlov AL, Korsakov MK, Shetnev AA, Volkhin NN, Petukhov SS. Pharmacokinetics study of a new isoxazole derivative in rats using HPLC-MS/MS for blood sample analysis. Regulatory Research and Medicine Evaluation. 2024;14(3):304–16 (In Russ.). https://doi.org/10.30895/1991-2919-2024-14-3-304-316</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Яичков ИИ, Корсаков МК, Шетнев АА, Вольхин НН, Петухов СС. Разработка и валидация методики количественного определения 5-[5-(трифторметил)-1,2-оксазол-3-ил]-фуран-2-сульфонамида и его метаболитов в плазме лабораторных животных. Разработка и регистрация лекарственных средств. 2024;13(3):219–30. https://doi.org/10.33380/2305-2066-2024-13-3-1771</mixed-citation><mixed-citation xml:lang="en">Yaichkov II, Korsakov MK, Shetnev AA, Volkhin NN, Petukhov SS. Development and validation of the method of quantification of 5-[5-(trifluoromethyl)-1,2-oxazole-3-yl]-furan-2-sulfonamide and its metabolites in laboratory animal plasma. Drug Development &amp; Registration. 2024;13(3):219–30 (In Russ.). https://doi.org/10.33380/2305-2066-2024-13-3-1771</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Yue J, Cheng W, Wei S, Liu G, Zhou M, Lv Z, Yu M. Development and validation of UHPLC-MS/MS method for quantifying of agarotriose: an application for pharmacokinetic, tissue distribution, and excretion studies in rats. J Ocean Univ China. 2023;22:1683–91. https://doi.org/10.1007/s11802-023-5534-4</mixed-citation><mixed-citation xml:lang="en">Yue J, Cheng W, Wei S, Liu G, Zhou M, Lv Z, Yu M. Development and validation of UHPLC-MS/MS method for quantifying of agarotriose: an application for pharmacokinetic, tissue distribution, and excretion studies in rats. J Ocean Univ China. 2023;22:1683–91. https://doi.org/10.1007/s11802-023-5534-4</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Basu S, Zeng M, Yin T, Gao S, Hu M. Development and validation of an UPLC-MS/MS method for the quantification of irinotecan, SN 38 and SN-38 glucuronide in plasma, urine, feces, liver and kidney: Application to a pharmacokinetic study of irinotecan in rats. J Chromatogr B Analyt Technol Biomed Life Sci. 2016;1015–1016:34–41. https://doi.org/10.1016/j.jchromb.2016.02.012</mixed-citation><mixed-citation xml:lang="en">Basu S, Zeng M, Yin T, Gao S, Hu M. Development and validation of an UPLC-MS/MS method for the quantification of irinotecan, SN 38 and SN-38 glucuronide in plasma, urine, feces, liver and kidney: Application to a pharmacokinetic study of irinotecan in rats. J Chromatogr B Analyt Technol Biomed Life Sci. 2016;1015–1016:34–41. https://doi.org/10.1016/j.jchromb.2016.02.012</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Pang X, Zhao Y, Song J, Kang D, Wu S, Wang L, et al. Pharmacokinetics, excretion and metabolites analysis of DL0410, a dual-acting cholinesterase inhibitor and histamine-3 receptor antagonist. Mol Med Rep. 2019;20(2):1103–12. https://doi.org/10.3892/mmr.2019.10306</mixed-citation><mixed-citation xml:lang="en">Pang X, Zhao Y, Song J, Kang D, Wu S, Wang L, et al. Pharmacokinetics, excretion and metabolites analysis of DL0410, a dual-acting cholinesterase inhibitor and histamine-3 receptor antagonist. Mol Med Rep. 2019;20(2):1103–12. https://doi.org/10.3892/mmr.2019.10306</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Almalki AH, Ali NA, Elroby FA, El Ghobashy MR, Emam AA, Naguib IA. ESI–LC–MS/MS for therapeutic drug monitoring of binary mixture of pregabalin and tramadol: Human plasma and urine applications. Separations. 2021;8(2):21. https://doi.org/10.3390/separations8020021</mixed-citation><mixed-citation xml:lang="en">Almalki AH, Ali NA, Elroby FA, El Ghobashy MR, Emam AA, Naguib IA. ESI–LC–MS/MS for therapeutic drug monitoring of binary mixture of pregabalin and tramadol: Human plasma and urine applications. Separations. 2021;8(2):21. https://doi.org/10.3390/separations8020021</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Lu T, Wang X, Zhang Q, Liu K, Xu T, Wang Q, et al. Validated LC-MS/MS method for quantitation of solasodine in rat urine and feces: Blocking nonspecific adsorption. Acta Chromatogr. 2023;35(4):319–25. https://doi.org/10.1556/1326.2022.01079</mixed-citation><mixed-citation xml:lang="en">Lu T, Wang X, Zhang Q, Liu K, Xu T, Wang Q, et al. Validated LC-MS/MS method for quantitation of solasodine in rat urine and feces: Blocking nonspecific adsorption. Acta Chromatogr. 2023;35(4):319–25. https://doi.org/10.1556/1326.2022.01079</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Hu H, Xiao H, Bao H, Li M, Xue C, Li YT, et al. Tissue distribution comparison of six active ingredients from an Eucommiae cortex extract between normal and spontaneously hypertensive rats. Evid Based Complement Alternat Med. 2020;2020:2049059. https://doi.org/10.1155/2020/2049059</mixed-citation><mixed-citation xml:lang="en">Hu H, Xiao H, Bao H, Li M, Xue C, Li YT, et al. Tissue distribution comparison of six active ingredients from an Eucommiae cortex extract between normal and spontaneously hypertensive rats. Evid Based Complement Alternat Med. 2020;2020:2049059. https://doi.org/10.1155/2020/2049059</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Kusuma Kumari G, Krishnamurthy PT, Ravi Kiran Ammu VVV, Vishwanath K, Narenderan ST, Babu B, Krishnaveni N. Development and validation of a sensitive LC-MS/MS method for pioglitazone: Application towards pharmacokinetic and tissue distribution study in rats. RSC Adv. 2021;11(19):11437–43. https://doi.org/10.1039/d1ra01126j</mixed-citation><mixed-citation xml:lang="en">Kusuma Kumari G, Krishnamurthy PT, Ravi Kiran Ammu VVV, Vishwanath K, Narenderan ST, Babu B, Krishnaveni N. Development and validation of a sensitive LC-MS/MS method for pioglitazone: Application towards pharmacokinetic and tissue distribution study in rats. RSC Adv. 2021;11(19):11437–43. https://doi.org/10.1039/d1ra01126j</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Khokhlov AL, Yaichkov II, Shetnev AА, Ivanovsky SA, Korsakov MK, Alexeev MA, et al. Identification and synthesis of metabolites of the new antiglaucoma drug. Res Results Pharmacol. 2024;10(1):53–66. https://doi.org/10.18413/rrpharmacology.10.431</mixed-citation><mixed-citation xml:lang="en">Khokhlov AL, Yaichkov II, Shetnev AА, Ivanovsky SA, Korsakov MK, Alexeev MA, et al. Identification and synthesis of metabolites of the new antiglaucoma drug. Res Results Pharmacol. 2024;10(1):53–66. https://doi.org/10.18413/rrpharmacology.10.431</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
