(3R,3aS,6aR)-Hexahydrofuro [2,3-b] furan-3-yl-N-((1S,2R)-1-benzyl-3-(2,2-dimethyl-5-methoxyiminohexyl) [(3,4-methylenedioxyphenyl) sulfonyl]amino-2-hydroxypropyl) carbamate AIDS-095521 AIDS095521