129224-98-2 131407-79-9 (DIHYDROBROMIDE) 4-[5-(Thien-2-yl)thien-2-yl]-2-[(2-(4-methylpiperazine)ethyl)thio]pyrimidine 4-biThienyl-2-SEt(4-MePip)Pyrimidine AIDS-001932 AIDS001932 Pyrimidine, 4-[2,2'-bithiophen]-5-yl-2-[[2-(4-methyl-1-piperazinyl)ethyl]thio]-