The different analogues of ebselen-unsubstituted benzisoselenazol-3(2H)-one (2a) 2-pyridylbenzisoselenazol-3(2H)-ones (2b-h) and 7-azabenzisoselenazol-3(2H)-ones (3a-j) were designed as new selenium-containing antiviral and antimicrobial agents and synthesized. Some of them were found in the antiviral assay in vitro to be strong inhibitors of cythopatic activity of herpes simplex virus type 1--HSV-1
A convenient, general method for synthesis of various 2-substituted 7-azabenzisoselenazol-3(2H)-ones having pyridine ring condensed with selenazolone moiety is presented. It is based on the conversion of 2-chloronicotinic acid into 2-(chloroseleno)nicotinic acid chloride and its reaction with primary amines. The title compounds were found in the antimicrobial assay in vitro to be highly active against broad spectrum of bacteria and fungi.
Ortholithiation As a Tool for the Synthesis of Ebselen Analogues