Compounds of the formulas ##STR1## wherein: Y is an alkylene bridge of 3-9 carbon atoms; R' is lower-alkyl or hydroxy-lower-alkyl of 1-5 carbon atoms; R.sub.1 and R.sub.2 are hydrogen, halogen, lower-alkyl, lower-alkoxy, nitro, lower-alkoxycarbonyl or trifluoromethyl; and R.sub.8 is hydrogen or lower-alkyl of 1-5 carbon atoms, with the proviso that when R.sub.8 is hydrogen R' is hydroxy-lower-alkyl, are useful as antiviral agents, particularly against picornaviruses, including numerous strains of rhinovirus.
化学式为##STR1##的化合物,其中:Y是3-9个碳原子的烷基桥;R'为1-5个碳原子的低碳基或羟基低碳基;R.sub.1和R.sub.2为氢、卤素、低碳基、低碳氧基、硝基、低碳氧羰基或三
氟甲基;R.sub.8为氢或1-5个碳原子的低碳基,但当R.sub.8为氢时,R'为羟基低碳基。这些化合物可用作抗病毒剂,特别是对抗多种鼻病毒菌株,包括脊髓灰质炎病毒。