作者:Yu. N. Klimochkin、A. V. Yudashkin、E. O. Zhilkina、E. A. Ivleva、I. K. Moiseev、Ya. F. Oshis
DOI:10.1134/s1070428017070028
日期:2017.7
An efficient one-pot procedure has been developed for the synthesis of cagealcohols with hydroxy groups in the bridgehead positions. The procedure includes initial nitroxylation with nitric acid or a mixture of nitric acid with acetic acid and subsequent hydrolysis in the presence of urea.
We report the first examples of ruthenium complexes cis-[(N4)RuIIICl2]+ and cis-[(N4)RuII(OH2)2]2+ supported by chiral tetradentate amine ligands (N4), together with a high-valent cis-dioxo complex cis-[(N4)RuVI(O)2]2+ supported by the chiral N4 ligand mcp (mcp = N,N′-dimethyl-N,N′-bis(pyridin-2-ylmethyl)cyclohexane-1,2-diamine). The X-ray crystal structures of cis-[(mcp)RuIIICl2](ClO4) (1a), cis-
我们报告了由手性四齿胺配体 (N 4 ) 支持的钌配合物cis -[(N 4 )Ru III Cl 2 ] +和cis -[(N 4 )Ru II (OH 2 ) 2 ] 2+的第一个例子,与手性N 4配体mcp ( mcp = N , N ' -二甲基-N _, N'-双(吡啶-2-基甲基)环己烷-1,2-二胺)。cis -[(mcp)Ru III Cl 2 ](ClO 4 ) ( 1a )、cis -[(Me 2 mcp)Ru III Cl 2 ]ClO 4 ( 2a ) 和cis -[(pdp )的 X 射线晶体结构)Ru III Cl 2 ](ClO 4 ) ( 3a ) (Me 2 mcp = N , N '-二甲基-N , N'-双((6-甲基吡啶-2-基)甲基)环己烷-1,2-二胺, pdp = 1,1'-双(吡啶-2-基甲基)-2,2'-联吡咯烷))配体以顺式-α构型与钌中心配位。在水溶液中,观察到cis
Novel antimitotic agents related to tubuloclustin: synthesis and biological evaluation
作者:Olga N. Zefirova、Evgeniya V. Nurieva、Birgit Wobith、Vladimir V. Gogol、Nikolay A. Zefirov、Andrei V. Ogonkov、Dmitrii V. Shishov、Nikolay S. Zefirov、Sergei A. Kuznetsov
DOI:10.1007/s11030-017-9739-6
日期:2017.8
ine], a highly cytotoxic anti-tubulin compound is known for its ability to promote microtubule disassembly followed by the formation of tubulin clusters of unique morphology. Three series of antimitoticagents related to tubuloclustin were designed and synthesized in order to enhance the molecular diversity of “tubuloclustin-like” family of compounds. The series of compounds with modified adamantane
Amine Organocatalysis of Remote, Chemoselective C(sp<sup>3</sup>)–H Hydroxylation
作者:Philip L. Hahn、Jared M. Lowe、Yubo Xu、Kevin L. Burns、Michael K. Hilinski
DOI:10.1021/acscatal.2c00392
日期:2022.4.15
simple catalytic strategy for achieving high yielding and highly selectiveremote hydroxylation of compounds bearing oxidation-sensitive functionalgroups such as alcohols, ethers, carbamates, and amides. By employing hexafluoroisopropanol as the solvent in the absence of water, a proposed hydrogen-bonding effect leads to, among other advantages, as high as ≥99:1 chemoselectivity for remote aliphatic
Tick-borne flavivirus reproduction inhibitors based on isoxazole core linked with adamantane
作者:Dmitry A. Vasilenko、Evgenia V. Dueva、Liubov I. Kozlovskaya、Nikolay A. Zefirov、Yuri K. Grishin、Gennady M. Butov、Vladimir A. Palyulin、Tamara S. Kuznetsova、Galina G. Karganova、Olga N. Zefirova、Dmitry I. Osolodkin、Elena B. Averina
DOI:10.1016/j.bioorg.2019.03.028
日期:2019.6
Infections caused by flaviviruses pose a huge threat for public health all over the world. The search for therapeutically relevant compounds targeting tick-borne flaviviruses requires the exploration of novel chemotypes. In the present work a large series of novel polyfunctionalized isoxazole derivatives bearing substituents with various steric and electronic effects was obtained by our unique versatile