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1.

Вид документа : Статья из журнала
Шифр издания : 54/T 82
Автор(ы) : Slepukhin P. A., Rusinov G. L., Dedeneva S., Charushin V. N.
Заглавие : Transformations of 8-substituted tetrazolo[1,5-a]pyrazines [Electronic resource]
Место публикации : Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2007. - Vol. 56, № 2. - С. 345-350
Систем. требования: http://www.springerlink.com/content/px2u383631p78074/fulltext.pdf
Примечания : 26.10.2011
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The reactions of 8-chlorotetrazolo[1,5-a]pyrazine with N-, O-, and S-nucleophiles involve the ipso substitution of the chlorine atom. Heating of this compound with benzotriazole or phenyltetrazole results in elimination of the nitrogen molecule from one of the tetrazole rings to form new annelated azapentalenes
\\\\Expert2\\nbo\\Russian Chemical Bulletin\\2007, 56 (2), 345.pdf
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2.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Krasnov V. P., Musiyak V. V. , Levit G. L., Gruzdev D.A., Charushin V. N., Andronova V. L., Galegov G. A., Orshanskaya I. R., Sinegubova E. O., Zarubaev V. V.
Заглавие : Synthesis of pyrimidine conjugates with 4-(6-amino-hexanoyl)-7,8-difluoro-3,4-dihydro-3-methyl-2h-[1,4] benzoxazine and evaluation of their antiviral activity
Место публикации : Molecules. - 2022. - Vol. 27, № 13. - Ст.4236
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): pyrimidine
Аннотация: A series of pyrimidine conjugates containing a fragment of racemic 7,8-difluoro-3,4-dihydro-3-methyl-2H-[1,4]benzoxazine and its (S)-enantiomer attached via a 6-aminohexanoyl fragment were synthesized by the reaction of nucleophilic substitution of chlorine in various chloropyrimidines. The structures of the synthesized compounds were confirmed by 1H, 19F, and 13C NMR spectral data. Enantiomeric purity of optically active derivatives was confirmed by chiral HPLC. Antiviral evaluation of the synthesized compounds has shown that the replacement of purine with a pyrimidine fragment leads to a decrease in the anti-herpesvirus activity compared to the lead compound, purine conjugate. The studied compounds did not exhibit significant activity against influenza A (H1N1) virus.
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3.

Вид документа : Статья из журнала
Шифр издания : 54/S 98
Автор(ы) : Verbitskiy E. V., Cheprakova E. M., Slepukhin P. A., Kravchenko M. A., Skornyakov S. N., Rusinov G. L., Chupakhin O. N., Charushin V. N.
Заглавие : Synthesis of novel purin-6-yl conjugates with heterocyclic amines linked via 6-aminohexanoyl fragment [Электронный ресурс]
Место публикации : Mendeleev Communications. - 2015. - Vol. 25. - С. 412-414
Систем. требования: http://www.sciencedirect.com/science/article/pii/S0959943615002011
Примечания : Bibliogr. : p. 414 (30 ref.). - 20.01.2016
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): 2-aminopurine --purin-6-yl --heterocyclic amines
Аннотация: Novel conjugates of purine and 2-aminopurine linked with heterocyclic amines, including chiral derivatives of 3,4-dihydro- 2H-[1,4]benzoxazine, 3,4-dihydro-2H-[1,4]benzothiazine and 1,2,3,4-tetrahydroquinoline, by 6-aminohexanoyl fragment at the 6-position of purine moiety were obtained. For this purpose, replacement of the chlorine atom in 2-amino-6-chloropurine or 6-chloropurine by direct nucleophilic substitution reaction with 6-aminohexanamides or the coupling of 6-(purin-6-ylamino)-6- hexanoic acid with nitrogen heterocycles were used.
\\\\expert2\\nbo\\Mendeleev Communications\\2015, v.25, p. 412.pdf
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4.

Вид документа : Статья из журнала
Шифр издания : 54/S 67
Автор(ы) : Slepukhin P. A., Kim D.G., Charushin V. N.
Заглавие : Structural study of the CoCl2 complex with 8(-2-butylthioethyl)oxyquinoline [Electronic resource]
Место публикации : Russian Journal of Coordination Chemistry. - 2010. - Vol. 36, № 8. - С. 615-617
Систем. требования: http://www.springerlink.com/content/5mu4u8pt76870w7t/fulltext.pdf
Примечания : 18.10.2011
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Complex [CoCl(L)]2(Cl)2 (L = 8-(2-butylthioethyl)oxyquinoline) is studied by X-ray diffraction analysis. The empirical formula of the compound is C30H34Cl4Co2N2O2S2, the crystals are monoclinic, a = 9.9382(13) A, b = 11.9097(8) A, c = 14.5715(11) A = 102.511(9)°, Z = 2, space group P21/c. The complex is dimeric with bridging chlorine atoms, and the heterocyclic ligand L is tridentate-cyclic
\\\\Expert2\\nbo\\Russian Journal of Coordination Chemistry\\2010, v. 36, N. 8, p.615.pdf
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5.

Вид документа : Статья из журнала
Шифр издания : Г/S 83
Автор(ы) : Musiyak V. V. , Nizova I. A., Chulakov E. N., Sadretdinova L. S., Tumashov A. A., Levit G. L., Krasnov V. P.
Заглавие : Stereochemical aspects in the synthesis of novel N-(purin-6-yl)dipeptides as potential antimycobacterial agents
Место публикации : Amino Acids. - 2021. - Vol. 53, № 3. - С. 407-415
ББК : Г
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): dipeptides--racemization--purine--coupling--nucleophilic substitution--antimycobacterial activity
Аннотация: The synthesis of purine conjugates with natural amino acids is one of the promising directions in search for novel therapeutic agents, including antimycobacterial agents. The purpose of this study was to synthesize N-(purin-6-yl)dipeptides containing the terminal fragment of (S)-glutamic acid. To obtain the target compounds, two synthetic routes were tested. The first of them is based on coupling of N-(purin-6-yl)-(S)-amino acids to dimethyl (S)-glutamate in the presence of carbodiimide coupling agent followed by the removal of ester groups. However, it turned out that this coupling process was accompanied by racemization of the chiral center of N-(purin-6-yl)-α-amino acids and in all cases led to mixtures of (S,S)- and (R,S)diastereomers (6:4). Individual (S,S)-diastereomers were obtained using an alternative approach based on the nucleophilic substitution of chlorine in 6-chloropurine or 2-amino-6-chloropurine with corresponding dipeptides as nucleophiles. The enantiomeric purity of the target compounds was confirmed by chiral HPLC. To test the assumption that racemization of the chiral center of N-(purin-6-yl)-α-amino acids occurs with the participation of nitrogen atoms of the imidazole ring via the stage of formation of a chirally labile intermediate, we obtained such structural analogs of N-(purin-6-yl)-(S)-alanine as N-(9-benzylpurin-6-yl)-(S)-alanine and N-(7-deazapurin-6-yl)-(S)-alanine. It was found that coupling of these compounds to dimethyl (S)-glutamate was also accompanied by racemization. This indicates that the imidazole fragment does not play a crucial role in this process. When testing the antimycobacterial activity of some of the obtained compounds, conjugates with moderate activity against the laboratory Mycobacterium tuberculosis H37Rv strain (MIC 3.1–6.25 μg/mL) were identified.
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6.

Вид документа : Статья из сборника (однотомник)
Шифр издания : 54/R 45
Автор(ы) : Balezin M. E., Buldakov I. A., Sokovnin S. Yu., Simakina V. A., Puzyrev I., Yatluk Yu. G.
Заглавие : Research into the Possibility of Converting HCL to Molecular Chlorine with the Use of a Nanosecond Electron Beam
Место публикации : 15th International Symposium on Hight-Current Electronics : Proceedings . - Tomsk, 2008. - С. 512-514
Примечания : Bibliogr. : p. 514 (18 ref.)
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
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7.

Вид документа : Статья из журнала
Шифр издания : 54/R 30
Автор(ы) : Frolova L. L., Popov A. V., Bezuglaya L. V., Alekseev I.N., Slepukhin P. A., Kutchin A.V.
Заглавие : Reactions of Terpene Alcohols and Diols with Chlorine Dioxide in Dimethylformamide [Электронный ресурс]
Место публикации : Russian Journal of General Chemistry. - 2016. - Vol. 86, № 3. - С. 613-621
Систем. требования: http://download.springer.com/static/pdf/701/
Примечания : 03.11.16
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): one-pot synthesis --oxidation--ketones
Аннотация: The system chlorine dioxide-dimethylformamide in combination with or without a catalytic amount of MoCl5, CeCl3, ZrOCl2, or VO(acac)(2) induces oxidative chlorination of a number of bicyclic terpene alcohols and vicinal diols. 2 alpha-Chloropinan-3-one, 3 alpha-chloro-10 beta-pinan-4-one, 5 alpha-chloro-3 alpha-hydroxycaran-4-one, 5 beta-chloro-3 beta-hydroxycaran-4-one, and 4 alpha-chloro-2 alpha-hydroxypinan-3-one were thus synthesized in good preparative yields.
\\\\expert2\\NBO\\Russian Journal of General Chemistry\\2016, V. 86, N 3, p. 613-621.pdf
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8.

Вид документа : Статья из журнала
Шифр издания : 54/R 30
Автор(ы) : Gorbunova T. I., Zapevalov A. Ya., Kirichenko V. E., Saloutin V. I., Chupakhin O. N.
Заглавие : Reactions of polychlorodiphenyls with alcohols
Место публикации : Russian Journal of Applied Chemistry. - 2000. - Vol. 73, № 4. - С. 650-654
Примечания : Bibliogr. : p. 654 (12 ref.)
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Procedures are proposed for chemical treatment of commercial polychlorodiphenyls through nucleophilic substitution of two chlorine atoms by various alkoxy groups.
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9.

Вид документа : Статья из журнала
Шифр издания : 54/R 30
Автор(ы) : Gorbunova T. I., Zapevalov A. Ya., Saloutin V. I., Chupakhin O. N.
Заглавие : Reaction of dinitropolychlorobiphenyls with O- and N-nucleophiles as a new route of reprocessing polychlorobiphenyls [Electronic resource]
Место публикации : Russian Journal of Applied Chemistry. - 2002. - Vol. 75, № 3. - С. 449-451
Систем. требования: http://www.springerlink.com/content/3d3c9w2ygf2wwqe1/fulltext.pdf
Примечания : Bibliogr. : p. 451 (11 ref.). - 19.10.2011
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The reactivity of a mixture of dinitropolychlorobiphenyls in nucleophilic substitution of aromatic chlorine by polyethyleneoxy and amino groups was studied. New polychlorobiphenyl derivatives were obtained.
\\\\Expert2\\nbo\\Russian Journal of Applied Chemistry\\2002, v. 75, N. 3, p.449.pdf
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10.

Вид документа : Статья из журнала
Шифр издания : 54/P 80
Автор(ы) : Gorbunova T. I., Subbotina J.O., Saloutin V. I., Chupakhin O. N.
Заглавие : Polychlorinated biphenyls: Correlation between experimental data and quantum-chemical simulation [Электронный ресурс]
Место публикации : Russian Journal of General Chemistry. - 2014. - Vol.84, №3. - С. 486-495
Примечания : Bibliogr. : p. 494-495 (43 ref.). - 12.08.2014
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): polychlorinated biphenyls--sovol mixture --nucleophilic substitution
Аннотация: In order to comprehend the data on reactivity of polychlorinated biphenyls of the Sovol mixture in nucleophilic substitution reactions we have performed quantum-chemical simulation using the RB3LYP\6-31G(d) gas phase approximation. Using the "Atoms-in-Molecules" approach, we have computed charges on the biphenyl carbon atoms adjacent to chlorine; furthermore, absolute chemical hardness and global electrophilicity index have been determined for the studied chlorobiphenyls. The calculated descriptors have been correlated with experimentally determined reactivity of the biphenyls in the hard acid-hard base nucleophilic reactions. The higher reactivity of more chlorinated substrates has been confirmed
\\\\expert2\\nbo\\Russian Journal of General Chemistry\\2014, V. 84, N 3, p. 486–495.pdf
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