The present invention provides the compound of formula (I), immunogenic composition and pharmaceutical compositions comprising the compound, and use the method for compound treatment and the active relevant disease of Toll-like receptor 7 or obstacle.本發明提供了式(I)的化合物、免疫原性組合物和包含所述化合物的藥物組合物,及使用所述化合物治療與Toll‑樣受體7活性相關的疾病或障礙的方法。