1-(4-Chlorophenyl)-2-((7-((2-(4-chlorophenyl)-2-oxoethyl)thio)-1,5-dimethyl-1H,5H-[1,2,4]triazolo[1,2-a][1,2,4]triazol-3-yl)thio)ethanone AIDS-128962 AIDS128962 NSC310359