3-((((4'-((((2-Carboxyethyl)thio)carbonyl)amino)-2',3-dimethoxy[1,1'-biphenyl]-4-yl)amino)carbonyl)thio)propanoic acid AIDS-133489 AIDS133489 NSC629291 {3,3'-[N,N'-(2,3'-Dimethoxy-4,4'-biphenylthiocarbamoyl0]-} bispropanoic acid