Synthesis and anti-viral activity of azolo-adamantanes against influenza A virus
作者:Vladimir V. Zarubaev、Efim L. Golod、Pavel M. Anfimov、Anna A. Shtro、Victor V. Saraev、Alexey S. Gavrilov、Alexander V. Logvinov、Oleg I. Kiselev
DOI:10.1016/j.bmc.2009.11.047
日期:2010.1
Chemotherapy and chemoprophylaxis of influenza is one of the most important directions of health protection activity. Due to the high rate of drug-resistant strains of influenza virus, there is a need for the search and further development of new potent antivirals against influenza with a broad spectrum of activity. In the present study, a set of di-, tri- and tetrazole derivatives of adamantane was efficiently prepared and their anti-influenza activities evaluated against rimantadine-resistant strain A/Puerto Rico/8/34. In general, derivatives of tetrazole possessed the highest virus-inhibiting activity. We demonstrated that several compounds of this set exhibited much higher activity than the currently used antiviral rimantadine, a compound of related structure. Moreover, we showed that these azolo-adamantanes were significantly less toxic. This study demonstrates that influenza viruses can be inhibited by adamantylazoles and thus have potential for developing antiviral agents with an alternate mechanism of action. (C) 2009 Elsevier Ltd. All rights reserved.
Saraev; Golod, Russian Journal of Organic Chemistry, 1997, vol. 33, # 4, p. 571 - 574
作者:Saraev、Golod
DOI:——
日期:——
Alkylation of 5-Substituted Tetrazoles with Various Alcohols in 1,2-Dichloroethane in the Presence of BF3·Et2O
作者:S. A. Egorov、M. A. Ishchenko、Ya. V. Prokopovich、V. I. Ivanova
DOI:10.1134/s107042802007012x
日期:2020.7
The alkylation of 1H-tetrazole, 5-methyl-1H-tetrazole, and 5-phenyl-1H-tetrazole with primary, secondary, and tertiary alcohols, including benzylic and allylic ones, have been studied in 1,2-dichloroethane in the presence of boron trifluoride-diethyl ether complex. Neither primary nor secondary saturated alcohols alkylated tetrazoles in the given system. Tertiary alcohols suchtert-butyl alcohol and adamantan-1-ol reacted with unsubstituted and 5-substituted tetrazoles to give 70-85% of the corresponding 2-alkyl-5-R-tetrazoles with high regioselectivity. The alkylation of 1H-tetrazole with benzyl alcohol afforded 55% of 2-benzyl-2H-tetrazole as the only product. The alkylation of 1H-tetrazole with various allylic alcohols led to the formation of mixtures of 2-alkyl-2H-tetrazoles with isomeric alkyl substituents.
Saraev; Gavrilov; Golod, Russian Journal of Organic Chemistry, 1999, vol. 35, # 7, p. 1069 - 1072