A novel and effective approach to 4-fluoropyrimidines
作者:Kseniya N. Sedenkova、Elena B. Averina、Yuri K. Grishin、Tamara S. Kuznetsova、Nikolay S. Zefirov
DOI:10.1016/j.tetlet.2013.11.070
日期:2014.1
4-fluoropyrimidine 1-oxides, obtained via three-component heterocyclization, was studied under various reduction conditions. An effective preparative method for the synthesis of 4-fluoropyrimidines from readily available starting materials was elaborated. 4-Fluoro-substituted tetrahydroquinazolines and tetrahydroquinazoline N-oxides were demonstrated to be highly reactive in aromatic nucleophilic substitution.
Synthesis and assessment of 4-aminotetrahydroquinazoline derivatives as tick-borne encephalitis virus reproduction inhibitors
作者:Kseniya N. Sedenkova、Evgenia V. Dueva、Elena B. Averina、Yuri K. Grishin、Dmitry I. Osolodkin、Liubov I. Kozlovskaya、Vladimir A. Palyulin、Evgenii N. Savelyev、Boris S. Orlinson、Ivan A. Novakov、Gennady M. Butov、Tamara S. Kuznetsova、Galina G. Karganova、Nikolay S. Zefirov
DOI:10.1039/c4ob02649g
日期:——
obtained and their activity against tick-borne encephalitis virus reproduction was studied. Nine compounds were found to inhibit TBEV entry into the host cells. A bulky hydrophobic adamantyl group was identified to be important for the antiviralactivity. The developed synthetic route allowed an easy access to a consistent compound library for further structure-activity relationship studies.
Novel π-conjugated systems based on pyrimidine N-Oxide
作者:Kseniya N. Sedenkova、Julia V. Kolodyazhnaya、Dmitry A. Vasilenko、Yulia A. Gracheva、Elena V. Kharitonoshvili、Yuri K. Grishin、Alexey A. Chistov、Victor B. Rybakov、Tina Holt、Andrei G. Kutateladze、Tamara S. Kuznetsova、Elena R. Milaeva、Elena B. Averina
DOI:10.1016/j.dyepig.2018.12.067
日期:2019.5
heterocyclic core for the construction of π-conjugated molecules with fluorescent properties. For the synthesis of the title compounds a simple two-step protocol starting from readily available 4-fluoro-2-methylpyrimidine N-oxides was elaborated. A series of 17 novel pyrimidine N-oxide derivatives containing various functional substituents and π-conjugated systems of different length were obtained
Dichotomy in the reactivity of 2-methyltetrahydroquinazoline 1-oxides towards aldehydes: An unprecedented condensation with simultaneous reduction of the N-oxide fragment
作者:Kseniya N. Sedenkova、Alexey V. Terekhin、Irina V. Abdrashitova、Dmitry A. Vasilenko、Kirill S. Sadovnikov、Yulia A. Gracheva、Yuri K. Grishin、Tina Holt、Andrei G. Kutateladze、Tamara S. Kuznetsova、Elena R. Milaeva、Elena B. Averina
DOI:10.1016/j.tetlet.2020.151605
日期:2020.3
An unusual condensation reaction of 2-methyltetrahydroquinazoline N-oxides with aromaticaldehydes was found. The reaction of 4-cyano substituted heterocycles as well as the use of microwave irradiation for 4-morpholinyl substituted heterocycles resulted in the condensation engaging the methylene group of the tetrahydroquinazoline fragment with simultaneous deoxygenation of the N-oxide. A preparative
A facile metal-free approach to N,N′-bis(1-oxidopyrimidin-4-yl)diamines with promising biological activity
作者:Kseniya N. Sedenkova、Anna A. Nazarova、Evgeny V. Khvatov、Evgenia V. Dueva、Alexey A. Orlov、Dmitry I. Osolodkin、Yuri K. Grishin、Tamara S. Kuznetsova、Vladimir A. Palyulin、Elena B. Averina
DOI:10.1016/j.mencom.2018.11.009
日期:2018.11
Novel N-(1-oxidopyrimidin-4-yl)- and N,N′-bis(1-oxidopyrimidin-4-yl)diamines were prepared from 4-fluoropyrimidine N-oxides and diamines basing on SNAr reaction. One compound from this series possessed antiviral activity against tick-borne encephalitis virus (TBEV).