Synthesis and the antimicrobial activity 1-N-alkylated derivatives of 3-N-substituted 1N-thieno (3,2-d)pirimidine-2,4-diones - O. V. Tkachenko; S. V. Vlasov; S. M. Kovalenko; I. O. Zhuravel; V. P. Chernykh (Journal of organic and pharmaceutical chemistry, 2013)