(3R,3aS,6aR or 3S,3aR,6aS) Hexahydrofuro[2,3-b] furan-3-yl-N-((1S,2R)-1-benzyl-3-2,2-dimethyl-5-[(methylsulfonyl) amino] pentyl[(4-methoxyphenyl) sulfonyl] amino-2-hydroxypropyl) carbamate AIDS-095475 AIDS095475