Zobrazeno 1 - 10
of 61
pro vyhledávání: '"Sergey I. Firgang"'
Autor:
Sergey I. Firgang, Anél Petzer, Sergey I. Filimonov, Zhanna V. Chirkova, Igor G. Abramov, Mariya V. Kabanova, Kyrill Yu. Suponitsky, Jacobus P. Petzer
Publikováno v:
Bioorganic & Medicinal Chemistry Letters. 25:1206-1211
Recent studies have found that phthalonitrile derivatives are remarkably potent inhibitors of human monoamine oxidase (MAO) A and B. In an attempt to further determine the structure-activity relationships (SARs) for MAO inhibition by this class of co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ab1aec34b9cd151a9a691b64b52549d3
https://doi.org/10.1016/j.bmcl.2015.01.061
https://doi.org/10.1016/j.bmcl.2015.01.061
Autor:
Sergey I. Firgang, E. S. Malikova, G. A. Stashina, S. M. Medvedeva, M. Yu. Krysin, Kh. S. Shikhaliev
Publikováno v:
Chemistry of Heterocyclic Compounds. 50:537-543
A 1,3-dipolar cycloaddition reaction of N-aryl maleimides with azomethine ylides obtained from aromatic aldehydes and alkyl(3-oxopiperazin-2-yl)acetates gave a new heterocyclic system – decahydro-3bH-pyrrolo[3',4':3,4]pyrrolo[1,2-a]pyrazine.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::91412c1197984874ea01f8e5455f39bf
https://doi.org/10.1007/s10593-014-1504-5
https://doi.org/10.1007/s10593-014-1504-5
Autor:
Gornostaev Leonid M, G. A. Stashina, Sergey I. Firgang, Yu. G. Khalyavina, T. I. Lavrikova, Vladimir V. Chernyshev
Publikováno v:
Russian Chemical Bulletin. 63:739-743
A method for the synthesis of a new group of tetracyclic diazaquinones, viz., benzo[b]-phenazine-6,11-dione 5-oxides, was developed and the pathways of their further modifications were outlined.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8a9a08d78e91424606385b1f82c9008f
https://doi.org/10.1007/s11172-014-0500-3
https://doi.org/10.1007/s11172-014-0500-3
Autor:
Galina A. Stashina, A. A. Rzhevskii, S. I. Filimonov, N. P. Gerasimova, Zh. V. Chirkova, Sergey I. Firgang, K. Yu. Suponitsky
Publikováno v:
Russian Journal of Organic Chemistry. 49:1680-1685
Reactions of 2-(4-methylphenyl)[1,3]triazolo[3,2-b][1,2,4]thiazol-6(5H)-one and 5-benzylidene-2-(4-methylphenyl)[1,3]thiazolo[3,2-b][1,2,4]triazol-6(5H)-one with amines and hydrazines of diverse structures were studied. The structure of the reaction
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2d31fbb641ce9b950b3cafec9e7eb5c1
https://doi.org/10.1134/s1070428013110201
https://doi.org/10.1134/s1070428013110201
Publikováno v:
Russian Chemical Bulletin. 62:2196-2201
Levoglucosenone, an optically active α,β-unsaturated ketone available from cellulose, undergoes a stereoselective oxa-Michael-aldol domino reaction with 2-hydroxybenzaldehydes with the formation of optically active oxepino[4,5-b]chromen-1-ones. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b592941d8ad7fb4ab73117f6040e2d85
https://doi.org/10.1007/s11172-013-0318-4
https://doi.org/10.1007/s11172-013-0318-4
Autor:
Yu. A. Kovygin, Kh. S. Shikhaliev, Zh. V. Chirkova, M. K. Korsakov, Igor G. Abramov, Sergei I. Filimonov, Sergey I. Firgang, G. A. Stashina
Publikováno v:
Chemistry of Heterocyclic Compounds. 49:993-999
Substituted 5-amino-4-arylpyrazoles on condensation with itaconic acid form substituted tetrahydropyrazolo[1,5-a]pyrimidines, and on condensation with maleic anhydride form 2,3-dihydro-1H-imidazolo[1,2-b]pyrazoles, which on more extended heating rear
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c75329710f1be5003f571429ec2acedd
https://doi.org/10.1007/s10593-013-1337-7
https://doi.org/10.1007/s10593-013-1337-7
Publikováno v:
Russian Chemical Bulletin. 62:2079-2082
Reactions of 4,6-dibromo-2,1,3-benzoxadiazole with phenols or arenelthiols lead to 4-aryloxy-6-bromo-2,1,3-benzoxadiazoles or 4-arylthio-6-bromo-2,1,3-benzoxadiazoles, respectively. Isomeric 6-aryloxy-4-bromo-2,1,3-benzoxadiazoles were synthesized by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b057a4fee1645be7c357a7f70103cff7
https://doi.org/10.1007/s11172-013-0301-0
https://doi.org/10.1007/s11172-013-0301-0
Autor:
Zh. V. Chirkova, G. A. Stashina, Sergey I. Firgang, Sergei I. Filimonov, Igor G. Abramov, V. S. Sharunov
Publikováno v:
Russian Journal of Organic Chemistry. 48:1557-1560
Methods have been developed for the synthesis of previously unknown N-substituted 1H-indazole-5,6-dicarbonitriles from 4-methyl-5-nitrophthalonitrile.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f26438ca83482bf32700e95c40cc35b6
https://doi.org/10.1134/s107042801212010x
https://doi.org/10.1134/s107042801212010x
Autor:
Sergey I. Filimonov, Galina A. Stashina, Kyrill Yu. Suponitsky, Igor G. Abramov, Dmitriy V. Khakimov, Yuri A. Strelenko, Tatyana S. Pivina, Sergey I. Firgang, Zhanna V. Chirkova, Alexander V. Samet
Publikováno v:
Tetrahedron. 68:5991-5997
Reactions of 4-bromo-5-nitrophthalonitrile (BNPN) with enolates of alkyl 4-R-2,4-dioxobutanoates gave alkyl 3-acyl-5,6-dicyanobenzofuran-2-carboxylates, 4-(2-R-2-oxoethyl)-5-nitrophthalonitriles, or 3-acyl-1,2-benzoxazole-5,6-dicarbonitriles. With a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cd900b7fc3c2d3f12af1aaa1cf543c31
https://doi.org/10.1016/j.tet.2012.05.034
https://doi.org/10.1016/j.tet.2012.05.034
Autor:
V. S. Sharunov, Sergei I. Filimonov, K. Yu. Suponitsky, Igor G. Abramov, Zh. V. Chirkova, Sergey I. Firgang, G. A. Stashina
Publikováno v:
Chemistry of Heterocyclic Compounds. 48:427-435
A method of synthesizing new 3-substituted 2-amino-1-hydroxy-1H-indole-5,6-dicarbonitriles has been developed based on the reductive cyclization of substituted 4-cyanomethyl-5-nitrophthalonitriles.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3d4c1092292d61369ea3643c91d2246c
https://doi.org/10.1007/s10593-012-1010-6
https://doi.org/10.1007/s10593-012-1010-6