4NH3OH-5PhBuCOOH, 2NH-PHCH2 AIDS-032601 AIDS032601 [(S)-1-((1S,2S,3R)-1-Benzyl-2-hydroxy-3-(2-hydroxy-indan-1-ylcarbamoyl)-3-{4-[(3-phenyl-ureido)-methyl]-benzylamino}-propylcarbamoyl)-2,2-dimethyl-propyl]-carbamic acid benzyl ester