157726-04-0 AIDS-016151 AIDS016151 BB 2116 BB-2116 BB2116 Butanediamide, N4-[5-(acetylamino)-1-[(methylamino)carbonyl]pentyl]-N1-hydroxy-2-[[(4-hydroxyphenyl)thio]methyl]-3-(2-methylpropyl)-, [2S-[N4(R*),2R*,3S*]]-