Chulakov E. N. Synthesis of Purine Conjugates with Fluorine-Containing Amines / E. N. Chulakov, G. L. Levit, V. P. Krasnov // XXI Mendeleev Congress on general and applied chemistry, 9-13 September, 2019, Saint Petersburg : book of abstract in 6 volumes. - Saint Petersburg, 2019. - Vol. 5 : The periodic table and new elements. Modical chemistry: fundamental and applied aspects. - 2019. - P. 119.