Krasnov V.P., Gruzdev D., Vozdvizhenskaya O., Vakarov S., Musiyak V.V., Chulakov E.N., Ezhikova M., Kodess M.I., Levit G.L., Charushin V.N., Zarubaev V.V., Volobueva A.S., Sinegubova E.O. Novel purine conjugates with N-heterocycles: synthesis and anti-influenza activity. Chemistry of Heterocyclic Compounds. 2021-04-14;57(4):498-504. https://doi.org/10.1007/s10593-021-02930-6