introductionThe relevance of creating new antiviral drugs due to the joint action of such operating factors as the spread of socially significant, particularly dangerous infections, and the emergence of pathogenic viral strains resistant to existing drugs.The antiviral drug "Triazaverin" and its analogues are highly effective in experiments in vivo and decreased activity in experiments on cell cultures, suggesting that the antiviral effect is not the "Triazaverin", and products of its transformations in the body. One way to identify such transformations in the organism is to predict the possible products of modifications of the compounds and chemical synthesis models.Based on the molecular structure of compounds 1a and study of chemi-