((1S,2S,3R)-3-{4-[(3-1H-Benzoimidazol-2-yl-propanoylamino)-methyl]-benzylamino}-1-benzyl-3-benzylcarbamoyl-2-hydroxy-propyl)-carbamic acid tert-butyl ester 4NH3OH-5PhBuCOOH, 2NH-PHCH2 AIDS-032575 AIDS032575