129224-97-1 2-[[2-(4-Methyl-1-piperazinyl)ethyl]thio]-4-(2-thienyl)-pyrimidine - unfusedbicyclic pyrimidine derivative 4-Thienyl-2-SEt(4-MePiperazine)Pyrimidine AIDS-001928 AIDS001928 Pyrimidine, 2-[[2-(4-methyl-1-piperazinyl)ethyl]thio]-4-(2-thienyl)-