(3R,3aS,6aR)-Hexahydrofuro [2,3-b] furan-3-yl-N-(1S,2R)-3-[(1,3-benzodioxol-5-ylsulfonyl) (2,2-dimethyl-4-[(4-nitorphenyloxy) carbonyloxy] butyl) amino]-1-benzyl-2-hydroxypropyl carbamate AIDS-095834 AIDS095834