| abstract |
Compounds of formula (I) wherein Thi is thiadiazolyl or thiadiazolyl substituted with alcoxy, fluoromethyl, difluoromethyl, trifluoromethyl, 1,1- difluoroethyl, halo, alkyl, cycloalkyl, hydroxyalkyl, or alkoxyalkyl; Y is alkylene bridge of 3-9 carbon atoms; R1 and R2 are each independently chosen from hydrogen, halo, alkyl, alkenyl, amino, alkylthio, hydroxy, hydroxyalkyl , alkoxyalkyl, alkylthioalkyl, alkylsulfinylalkyl, alkylsulfonylalkyl, alkoxy, nitro, carboxy, alkoxycarbonyl, dialkylaminoalkyl, alkylaminoalkyl, aminoalkyl, difluoromethyl, trifluoromethyl, or cyano; R3 is alkoxycarbonyl, phenyl, alkyltetrazolyl or heterocyclyl chosen from benzoxazolyl, benzathiazolyl, thiadioazolyl, imidazolyl, dihydroimidazolyl, oxazolyl, thiazolyl, oxadiazolyl, pyrazolyl, isoxazolyl, isothiazolyl, furyl, triazoly l, thienyl, pyridyl, pyrimidinyl, pyrazinyl, pyridazinyl, or substituted phenyl , or substituted heterocyclyl wherein the substitution is with alkyl, alkoxyalkyl, cycloalkyl, haloalkyl, hydroxyalkyl, alkoxy, hydroxy, furyl, thienyl, or fluoroalkyl; or a pharmaceutically acceptable salt thereof are effective antipicornaviral agents. |