Regioselective synthesis of pentathiepines fused with pyrrole, thiophene, or indole rings
作者:L. S. Konstantinova、S. A. Amelichev、O. A. Rakitin
DOI:10.1007/s11172-006-0551-1
日期:2006.11
Pentathiepines fused with pyrrole, thiophene, or indole rings were obtained by reactions of the corresponding heterocycles or their tetrahydro derivatives with a prepared mixture of sulfur monochloride and DABCO.
作者:Stanislav A. Amelichev、Lidia S. Konstantinova、Konstantin A. Lyssenko、Oleg A. Rakitin、Charles W. Rees
DOI:10.1039/b508186f
日期:——
Treatment of nucleophilic heterocycles like pyrroles and thiophenes, and their tetrahydro derivatives, with S2Cl2 and DABCO in chloroform at room temperature provides a simple one-pot synthesis of fused mono and bispentathiepins. N-Methylpyrrole and its 2-chloro and 2,5-dichloro derivatives and N-methylpyrrolidine all give the same dichloropentathiepin 1a. N-Ethyl, isopropyl and tert-butylpyrrolidine behave similarly; the isopropylpyrrolidine also gives the bispentathiepin 6 which undergoes an intriguing rearrangement to the symmetrical monopentathiepin 1c. N-Methyl and ethyl indole give either 2,3-dichloro derivatives 8 or the pentathiepinoindoles 9, depending upon the reaction conditions. Thiophene and tetrahydrothiophene give the pentathiepin 10. X-Ray crystal structures are provided for the pentathiepins 1a and 1d, and possible reaction pathways are suggested for the extensive cascade reactions reported.
Regioselective synthesis of pentathiepino-fused pyrroles and indoles
作者:Lidia S. Konstantinova、Oleg A. Rakitin、Charles W. Rees、Stanislav A. Amelichev
DOI:10.1070/mc2004v014n03abeh001912
日期:2004.1
Treatment of simple pyrroles, pyrrolidines and indoles with S2Cl2 and Dabco in chloroform at room temperature gives their fused pentathiepino derivatives 4, 6 and 8 in extensive cascade reactions; the reaction profile is changed and the regioselectivity enhanced when the S2Cl2 and Dabco are premixed and equilibrated before the heterocycle is added.
Investigation of the Pentathiepin Functionality as an Inhibitor of Feline Immunodeficiency Virus (FIV) via a Potential Zinc Ejection Mechanism, as a Model for HIV Infection
作者:Christopher R. M. Asquith、Tuomo Laitinen、Lidia S. Konstantinova、Graham Tizzard、Antti Poso、Oleg A. Rakitin、Regina Hofmann‐Lehmann、Stephen T. Hilton
DOI:10.1002/cmdc.201800718
日期:2019.2.19
A small diverse library of pentathiepin derivatives were prepared to evaluate their efficacy against the nucleocapsidprotein function of the felineimmunodeficiencyvirus (FIV) as a model for HIV, using an in vitro cell culture approach. This study led to the development of nanomolar active compounds with low toxicity.