Zobrazeno 1 - 10
of 211
pro vyhledávání: '"A. S. Lyakhov"'
Autor:
A. Z. Azanov, A. P. Koshel, S. V. Vtorushin, О. V. Zharkova, К. V. Vyalova, I. V. Vikhlyanov, N. Е. Verzhbitskaya, A. S. Lyakhov
Publikováno v:
Сибирский онкологический журнал, Vol 15, Iss 6, Pp 93-98 (2016)
We present a case report of locally advanced colorectal cancer that responded successfully to conservation chemotherapy allowing R resection to be performed. Morphological characteristics prior to and after chemotherapy have been described in detail.
Externí odkaz:
https://doaj.org/article/e46d8355a22e4080b1eb92c9065d00ff
Autor:
Evgeny Y. Grigoriev, Ludmila S. Ivashkevich, Alexander S. Lyakhov, Inna M. Grigorieva, Yuri V. Grigoriev, Oleg A. Ivashkevich
Publikováno v:
Журнал Белорусского государственного университета: Химия, Iss 2, Pp 19-29 (2022)
Drawing the experience of 5-phenyl- and 5-pyridyltetrazoles, it was shown that classical nitration-reduction methods in combination with typical alkylation reactions of tetrazole derivatives can be used to obtain multitopic polynuclear tetrazole-cont
Externí odkaz:
https://doaj.org/article/7d44cbc30e1e467aa098f26adae9d509
Autor:
Sergei V. Voitekhovich, Mikhail M. Degtyarik, Alexander S. Lyakhov, Ludmila S. Ivashkevich, Yuri V. Grigoriev, Oleg A. Ivashkevich
Publikováno v:
Журнал Белорусского государственного университета: Химия, Iss 2, Pp 10-18 (2022)
Novel tripodal ligands (R1N4CS)3CH, where R1 = Me, Ph, were synthesised by alkylation of 1-R-tetrazol-5-thioles with iodoform in alkaline media. These ligands were identified based on data of elemental analysis, nuclear magnetic resonance spectroscop
Externí odkaz:
https://doaj.org/article/686343f558a9476c8e1550d818db50c0
Autor:
Mikhail M. Degtyarik, Alexander S. Lyakhov, Inna M. Grigorieva, Ludmila S. Ivashkevich, Yuri V. Grigoriev, Oleg A. Ivashkevich
Publikováno v:
Журнал Белорусского государственного университета: Химия, Iss 1, Pp 83-95 (2022)
Complexes [Сu(NCS)2L3], [Сu(NO3)2L4] and [Cu(NCS)2L4]·L have been prepared by direct synthesis involving the interaction of metallic copper, ammonium salts NH4X (Х = NCS, NO3) and 1-tert-butyl-1H-1,2,4-triazole (L). Their composition and structur
Externí odkaz:
https://doaj.org/article/718ad5c0edb74eebb09e2ee68a037396
Autor:
Vladislav A. Budevich, Sergei V. Voitekhovich, Alexander V. Zuraev, Vadim E. Matulis, Vitaly E. Matulis, Alexander S. Lyakhov, Ludmila S. Ivashkevich, Oleg A. Ivashkevich
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 17, Iss 1, Pp 385-395 (2021)
Tetrazolium-5-aminides have been prepared by the tert-butylation of 5-aminotetrazole and its N-methyl derivatives by the t-BuOH/HClO4 system followed by the treatment of the tetrazolium salts by alkali. The mesoionic compounds have been found to show
Externí odkaz:
https://doaj.org/article/4aaefbff75a74d36af0b57beed206cbc
Autor:
Mikhail M. Degtyarik, Andrey N. Bogatikov, Sergei V. Voitekhovich, Alexander S. Lyakhov, Ludmila S. Ivashkevich, Yuri V. Grigoriev, Oleg A. Ivashkevich
Publikováno v:
Журнал Белорусского государственного университета: Химия, Iss 1, Pp 64-73 (2020)
A novel facile method for the synthesis of 1-iso-propyl-1H-1,2,4-triazole (L) is described. This method is based on alkylation of 1,2,4-triazole with isopropyl alcohol in sulfuric acid media. It allows to synthesize the target product selectively wit
Externí odkaz:
https://doaj.org/article/403d662c3ceb4f3583f33aae0fe24205
Autor:
Alexander V. Zuraev, Yuri V. Grigoriev, Inna M. Grigorieva, Lyubov I. Pan’ko, Ludmila S. Ivashkevich, Alexander S. Lyakhov, Oleg A. Ivashkevich
Publikováno v:
Журнал Белорусского государственного университета: Химия, Iss 1, Pp 67-75 (2018)
The method for synthesis of copper poly-5-vinyltetrazole salt (Cu-PVT) which based on interaction between the aqueous solutions of sodium poly-5-vinyltetrazolate and Сu(NO3)2 was developed. By using of the solutions of Сu(NO3)2 with a concentration
Externí odkaz:
https://doaj.org/article/1455876082d74e9696bd30abdde7d998
Autor:
Evgeny Y. Grigoryev, Inna M. Grigorieva, Alexander S. Lyakhov, Ludmila S. Ivashkevich, Vadim E. Matulis, Ludmila G. Lavrenova, Sergei V. Voitekhovich, Yuri V. Grigoriev
Publikováno v:
Zeitschrift für anorganische und allgemeine Chemie. 649
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8b8d40a9c51c3cc70f1006232bc60b98
https://doi.org/10.1002/zaac.202200290
https://doi.org/10.1002/zaac.202200290
Publikováno v:
Russian Journal of General Chemistry. 91:1639-1645
Abstract 1-Substituted 1H-tetrazole-5-thiols and 5-substituted 1H-tetrazoles easily reacted with trichloroethylene to form the corresponding S- and N-dichlorovinyl derivatives, respectively. In the case of 5-substituted 1H-tetrazoles, the reaction le
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b46a8bf946edfe7eaa6d7e03ff52c37e
https://doi.org/10.1134/s1070363221090061
https://doi.org/10.1134/s1070363221090061
Autor:
Sergei V. Voitekhovich, Alexander S. Lyakhov, Alexander N. Lavrov, Ludmila G. Lavrenova, Oleg A. Ivashkevich, Ludmila S. Ivashkevich
Publikováno v:
Zeitschrift für anorganische und allgemeine Chemie. 647:1633-1638
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c23af3a58fcd33b7055f6fbacf34dc3a
https://doi.org/10.1002/zaac.202100175
https://doi.org/10.1002/zaac.202100175