Vlasova, O. D., S. V. Vlasov, V. I. Kabachnyy, and V. S. Vlasov. “The Synthesis, Transformations and Biological Activity of thieno[2,3-d]pyrimidine Derivatives With the Carboxylic Groups As the Substituents in the Pyrimidine Ring”. Journal of Organic and Pharmaceutical Chemistry 18, no. 4(72) (December 1, 2020): 4–13. Accessed May 3, 2024. https://ophcj.nuph.edu.ua/article/view/ophcj.20.209835.