((2R)-4,6-Dioxabicyclo[3.3.0]oct-2-yloxy)-N-[(1S,2R)-3-({2,2-dimethyl-4-[(methylsulfonyl)amino]butyl} {[3-(methylamino)phenyl]sulfonyl}amino)-2-hydroxy-1-benzylpropyl] carboxamide AIDS-095576 AIDS095576