A new Method synthesis of 2-alkylthioethyl-5,7-dioxo-1,3,4-thiadiazolo [3,2-a] pyrimidine derivatives
In this paper new method for the synthesis of 2-alkylthioethyl-5,7-dioxo-1,3,4-thiadiazolo[3,2-a]pyrimidine derivatives by cyclization of malonic acid ether with derivatives 2-alkylthioethyl-5-amino-1,3,4-thiadiazole has been described.