((2R)-4,6-Dioxabicyclo[3.3.0]oct-2-yloxy)-N-{(1S,2R)-3-[(5-{[(1Z)-2-aza-1-(dimethylamino)-2-cyanovinyl]amino}-2,2-dimethylpentyl)(2H-benzo[3,4-d]1,3-dioxolan-5-ylsulfonyl)amino]-2-hydroxy-1- benzylpropyl} carboxamide AIDS-095825 AIDS095825