| abstract |
Compounds of formula (A), Z is (B) (see formula A) (see formula B) wherein: R1 and R2 are each independently hydrogen, halo, alkyl or the like; Y is alkylene of 3 to 9 carbon atoms; R3 and R4 are each independently chosen from hydrogen, alkyl, alkoxy, hydroxy, cycloalkyl, or the like; R5 is alkoxycarbonyl, alkyltetrazolyl, phenyl or a heterocycle are useful as antipicornaviral agents. |