Azoles. Part 10. Thiazolo[4′,5′,4,5]thieno[3,2-d]pyrimidine, a New Heterocyclic Ring System
作者:Salah Athmani、Brian Iddon
DOI:10.1016/s0040-4020(01)90380-1
日期:1992.9
obtained were converted into the corresponding thiazolo[4′,5′;4,5]thieno[3,2-d]pyrimidin-5(6H)-one by treatment with triethyl orthoformate in acetic anhydride. With phosphoryl chloride these gave the 5-chloro-derivative, which underwent displacement of the chlorine-atom when allowed to react with various amines. Reductive dechlorination of 5-chlorothiazolo[4′,5′;4,5]thieno[3,2-d]-pyrimidine gave the parent