((2R)-4,6-Dioxabicyclo[3.3.0]oct-2-yloxy)-N-((1S,2R)-3-{(2H-benzo[3,4-d]1,3-dioxolan-5-ylsulfonyl [2,2-dimethyl-4-({[(methylethyl)amino]thioxomethyl}amino)butyl]amino}-2-hydroxy-1-benzylpropyl) carboxamide AIDS-095668 AIDS095668