4,4'-Sulfonylbis(N-{[(12-methyltridecyl)thio]methyl}aniline)-{[(12-methyltridecyl)thio]methyl}(4-{[4-({[(12-methyltridecyl)thio]methyl}amino)phenyl]sulfonyl}phenyl)amine AIDS-032723 AIDS032723 NSC39859