[1]
O. D. Vlasova, 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”, J. Org. Pharm. Chem., vol. 18, no. 4(72), pp. 4–13, Dec. 2020.