Compounds of formula (I) wherein A represents a nucleobase or a derivative thereof, n is equal to 0 or 1 and R', R" are carbonic chain, and R10 is hydrogen or a carbonic chain for their use as antiviral agents.
式(I)中A代表核碱基或其衍
生物,n等于0或1,R'、R"为碳链,R10为氢或碳链,用作抗病毒剂。