Novel substituted 9-norbornylpurines and their activities against RNA viruses
摘要:
We report on the synthesis and the study of the structure-activity relationship of novel 9-norbornyl-6-chloropurine derivatives, which exert selective antiviral activity on the replication of Coxsackievirus B3. In particular, the synthetic approaches towards norbornyl derivatives bearing diverse side chains were studied. The main goal of the study was to determine the influence of the norbornane moiety substitution at positions 5 ' and 6 ' on selective antiviral activity with special regard to the liphophilicity profile of the substituent. (C) 2012 Elsevier Ltd. All rights reserved.
Novel substituted 9-norbornylpurines and their activities against RNA viruses
作者:Michal Šála、Hubert Hřebabecký、Pieter Leyssen、Milan Dejmek、Martin Dračínský、Armando M. De Palma、Johan Neyts、Radim Nencka
DOI:10.1016/j.bmcl.2012.01.040
日期:2012.3
We report on the synthesis and the study of the structure-activity relationship of novel 9-norbornyl-6-chloropurine derivatives, which exert selective antiviral activity on the replication of Coxsackievirus B3. In particular, the synthetic approaches towards norbornyl derivatives bearing diverse side chains were studied. The main goal of the study was to determine the influence of the norbornane moiety substitution at positions 5 ' and 6 ' on selective antiviral activity with special regard to the liphophilicity profile of the substituent. (C) 2012 Elsevier Ltd. All rights reserved.
Retardation of AlH<sub>2</sub>Cl Hydrogenolysis of the Ethylene Ketals of 5-Norbornen-2-one and 2-Norbornen-7-one Due to the Presence of the Double Bond
作者:H. A. Davis、R. K. Brown
DOI:10.1139/v73-052
日期:1973.2.1
bond in either 5-norbornen-2-one ethylene ketal or 2-norbornen-7-one ethylene ketal provides no anchimeric assistance in the hydrogenolysis of these ketals by AlH2Cl in ether. Instead, a marked retardation of reaction occurs, a result considered to be due to competitive association of the Lewis acid, AlH2Cl, with the π bond.Attack of the AlH2Cl on the former ketal occurs from the exo direction to give